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Roomba SLAM

My proposal for the scholarship:I will give the Roomba Create the ability to perform SLAM (simultaneous localization and mapping) within a typical house setting.There are three parts to this project:1) By using several IR rangefinders mounted on servos, create a 2D map real-time of the surroundings. This will be done with zero modification to the Create chassis. Very easy.2) Upload the map by wireless link to a PC for analysis. Intermediate.3) And the hardest part, continuously update the map accounting for drift over time (SLAM). Difficult but very useful!And I will give myself one additional challenge - I cannot use more than $100 in parts! The average hobbyist cannot afford much more than this, so to keep my tutorial useful I will stay within this limit.

Topic by societyofrobots    |  last reply


FaceBook Slammed....

Far be it of me to downplay the impact of activists on the Facebook ToS issue but it raises interesting questions about why some companies get pilloried while others seemingly get a free pass...More Here' GMJHOWE asked me to link to his posting on security at Facebook, so here it is....

Topic by Goodhart    |  last reply


Bakenbit'z slam fire

Wow. I just built bakenbitz' "slam fire" and it's amazing.If you have the time, patience, and pieces... Build it.STATS:ROF: 3 a secondRange: 75 feet with 2 #64'sWeight: Same as BR18Awesomeness: CompleteLink: http://knexinnovation.net/forums/viewtopic.php?f=2&t;=829&start;=15 (Scroll down to see picture)

Topic by travw    |  last reply


MEng Project: Vision-Led SLAM

Hi, I know Ive missed this competition but I am about to start a big project and wanted to share my ideas with some like-minded individuals who may have some suggestions. I am about to embark on a 4th year university project involving doing something clever with an iRobot Create. I am looking towards approaching the problem of location recognition in mobile robots by attaching a command module and a webcam to the robot and using computer vision (CV) methods to identify landmarks. I thought an interesting goal would be to get the robot to map a floor of my department building. After that it might attempt to classify distinct rooms. There is a white board on the wall of a corridor that the robot could potentially locate and possibly draw on with the use of a robotic arm. The ultimate goal of this project could then be to get the robot to draw a map of the floor on the white board (perhaps a bit excessive). I am aware this project would involve implementing SLAM, integrating the map data with feature information from CV-processed real-time images and developing some kind of recognition determination model (i.e. neural networks or something). After that I clueless. I have never even looked at a robot before, but Im really excited about finally having a go. I would really appreciate it if anyone has any thoughts or relevant experiences or warnings :) then please let me know! Also, any other ideas for what I could do with the iRobot, a camera and 6 months ;) Cheers, Tom PS Ive never seen this site before and it is awesome! I want to read everything :D

Topic by hungrytom    |  last reply


Has anyone seen or used this before? Called a Sonic Slam

   I was wondering about this game I saw in a catalog I get (email) called Sonic Slam (just out of curiosity) and if anyone has any experience with it.

Topic by Goodhart    |  last reply


I'M SORRY

 Hey, just wanted to let you all know that i broke my right pointer finger. To all of you who like the guns i build, i'm sorry but i cant really build with a cast. I can put easy pieces together and such, but when it comes to snapping in a bunch of connectors i can't do it. I broke it when it got slammed in a car door. (the car is the lexus that i took the pics for my hell slayer on) My stupid sister saw her friend and jumped out of the car to see her and slammed the door just as i was getting out. I was just stepping out and my finger got slammed in the door. i had to go get a freaking splint and it sucks :( I can still make some stuff. I get my splint off in about 2 weeks. Then it will be sore, and i will have to have a wrap on it for another week.

Topic by KnexFreek    |  last reply


knex can anyone build a good knew vw bug of a decent size?

Knex can anyone build a good knew vw bug of a decent size?

Question by lukas rider    |  last reply


Rotten Apple

Who is this Guy?? All I wanted was to warn people about the danger of using pop tab chainmail armor. Suddenly I am the subject of crap campain??? If You do'nt get what the gist of it was GIVE UP!!AND SHUT UP!!! Your continued slams only accentuate Your stupidity!!! As a result of the affore mentioned slam-a-thon I will no longer be loging on to this web site. Nor will I recomend it to anyone.  I apoligize to the rest of the good folks who contribute very good and interesting things, however I do'nt think I should have to put up with degrading and STUPID e-mails just because I wanted to help!                                                                          Roy.

Topic by Roy smith    |  last reply


quadcopter with kk board and arduino?

We are using a kk board 2.1.5 to control the  quad copter  and it works just fine.Well now we want to move a bit further and start making our own self stabilization algorithms based on slam algorithms . I want the public's opinion on using both the KK board (to auto stabilize ,don't want to mess around the PID  )  and adding a arduino duo in between the KK board and the receiver . So basically the idea is that the receiver signals are going to be altered using some mathematical functions to add features such as obstacle detection and avoidance  . My friend was rasing some doubts regarding this  as the signal input and pwm output might not be in sync Thanks in advance 

Question by cthaliyath    |  last reply


Knex Semi automatic Blowback pistol V1 & V2

---------V1------------ Hello, here is my Knex semi-automatic blow back pistol that yes, actually worked! It held 4 rounds and it could shoot very rapidly. The slide pulled back about two inches but slammed forward with power! It shot 35 feet using one rubber band. ---------V2------------ The V2 is the non metallic version. It holds five grey connectors and can shoot 30- 40 feet using two #64 rubberbands. Its slide can pull back three inches before slamming back to fire the bullet. It also has a much better construction build than the V1 but doesn't look as good.

Topic by Blue Mullet    |  last reply


my broken hand

I broke my left hand now get ready to laugh...i slammed it in an old '77 cadilac door (OUCH). i cracked my 1st knuckle dislocated my index finger and fractured my bone that goes from your knuckle to your wrist (OOOOOOOOOOOOOOOWWWWWWWWWWWWWWWWWWWWW)

Topic by darth acexxacer    |  last reply


Can't access files

Whenever I go to download my files from my instructable How to play story slams, I get this error. I've tried chrome, Firefox  and internet explorer, on windows 7 and chrome and internet explorer on windows 8.  Any ideas? I will love you for forever if you fix this, Milkywaybar

Topic by milkywaybar    |  last reply


Trebuchet does not release load

Have built a pallet/ man sized trebuchet in a 4th grade class project. Looks great, swings well, but the tennis ball load is either released before the sling swings up, or not at all (slams against the arm). Have used 2 ropes with a shallow bag. Any suggestions? (Kids were disappointed on Friday)

Question by BobS    |  last reply


Eric, (or any other kiteboarders who see this), please be careful!

Did you see the news story about the guy who was kitesurfing during Fay and got slammed around? Linky.I know you all are smarter than that...but please be careful anyhow...I'd hate to see a forum topic about one of you all getting hurt.

Topic by Lithium Rain    |  last reply


I know there is no such thing as perpetual motion? Why is that? Answered

Okay, no such thing as perpetual motion. Why is that? What about something that will run for a year before it has to be started up again. I guess what Im saying is people just slam perpetual motion and ignore it. But, what if? What if you only have to start it again once a year, a month, a week or even once a day. Don't you think we should look into this result?

Question by BluTiger    |  last reply


Nespresso Laptop Stand

Hi, This is my first instructable :DI was just at parents house siping a Nespresso and browsing stuff... and i noticed that i didn't had my cooling laptop base. So I went back to the coffee machine, cleaned up 2 used capsules, slammed the top with a spoon and ther'ya go, a recycled, free, portable and instant laptop base.Images are not that great, but just to get the idea :DDifficulty: Very easyTime: 2minDurability: bad :DPrice: ---

Topic by breakbeatnik  


Does anyone else remember an old educational physics film with a flying bicycle wheel?

I once saw a physics film covering various aspects of motion and the mathematics thereof.  In the part about rotational forces, a bicycle wheel (no tire) was spun fast enough to actually take off under precession force.  It was very a short flight in an arcing trajectory ending in the wheel inverting its axis and slamming into the ground...hard.  I've been wracking my brain trying to remember the name of the film to no avail.

Question by Dark Solar    |  last reply


How do i make a "Book of Fire"?

Also called a "burning book", i saw this trick in a chem class once. the prof took a book off his shelf, plopped it open to some pages in the middle, then turned the page, making sure it rubbed along the page underneath (presumably for friction), then the pages burst into flame. really, the air slightly above the pages was the burning component, because he then slammed the book shut and CAREFULLY reopened it to the same pages to show they were undamaged. i can't figure out quite how it's done.

Question by s1rus    |  last reply


Ways to go about making a mechanism to lift then rapidly drop a small box lid?

I'm looking to build a sound installation that uses the sound of a sheet metal box lid slamming. The box would probably be approx. 6" x 6" x 12". I'd be willing to make it slightly larger. I'd like to have a mechanism inside the box that lifts the lid, then rapidly drops it, either pulling it shut or dropping out of the way. I'm sure a mechanism like this exists somewhere in the instructables for other objects but I'm not sure where to look! Any assistance would be very helpful!

Question by floorwaxdesserttopping    |  last reply


Knexers quiz 2

Check out the first picture quiz for all the details.   ONLY ANSWER 1 TO MAKE IT FAIR ON OTHERS! THE FIRST ONE IS AN EXAMPLE OF MY NAME. 1. Hill + Yard sale + Dudel + (Z) (Hiyadudez) 2. 3. Banned + Anatomy + Invent + (OR) (Congrats Knexfreek) 4. Bar + (T) + Boyzone (Congrats Dsman195276) 5. Darth vader + train + Man (Congrats coolbas3) 6. King + Let + Tick (Congrats Agent harmsy) 7. 8. Smirnoff + Bruce Lee (Congrats TheDunkis) 9. Three + Slam dunk + Kiss (Congrats Kairah) 10. Wii + Kick + (Y) (Congrats Smilee) Sorry this is messy, I have to gooooooooooooo!

Topic by Hiyadudez    |  last reply


how to use bike gears to control speed of vertical axis windmill for pumping water?

I would like to use bike gears to switch gears eighter clockwise, or counterclockwise on a vertical axis windmill for pumping water. The purpose is to slow down the speed of the spinging rotor or switch it intoa idler gear, to allow the rotor to keep spinging, and to disconnect the water pump, so it wont' be damaged in high winds; Also not to slam the rotor to a sudden stop, by ingageing a brake. I am building this not only for myself, but also my church for them to give away free to needly people around the world. Thank you for any and all help in this matter.

Question by robertbarfield    |  last reply


Custom Stairwell Doubles as Handy Bookshelf

These stairs provide access to a loft room in a tiny apartment as well as a nifty spot to place loads of old paperbacks and CDs. As someone who is getting threats to start getting rid of books on a near daily basis, I can appreciate this.Another thing that's interesting is that this is the first set of stairs I've seen that has a prescribed way of going up and down them. You're meant to step on the side that sticks out more with the indent allowing the traveling foot to clear it. I think I'd want a handrail if I wanted to prevent any houseguests from plummeting down and slamming into the door at the bottom, though. linksee also:Stairs that double as dressers

Topic by fungus amungus    |  last reply


Why is it so hard for people to use their turn signals? I guess its way over some peoples heads? Answered

I drive allot for work, I see people endangering me and everyone they share the road with concealing their intentions to turn or change lanes. Most people I see just slamming on the brakes and turning are younger drivers who I suppose have not developed enough brain power to use the highly complicated device known as the turn signal. Others are just lazy and don't care if they get side swiped. I know its hard people but get your knuckles off the ground and check your blind spot and use your turn signals....

Question by nickademuss    |  last reply


the heater fan in my 1993 geo prizm quit working?

At first the fan would go on and off now and then if i hit a speed bump or a mud puddle. if it wouldnt come back on i could open my hood and slam it back down and the fan would start. now my fan quit working all together. i have tried to look for loose wires under the glove box and to check fuzes. i checked the fuzes under the hood and when i was looking under the glovebox (as well as possible) i noticed 2 more fuzes. do u think this is a loose wire or fuze problem or a burnt heater.  whats the best way to get to the heater fan. and where is the fuze located

Question by robinreise    |  last reply


Looking for thoughts.

My PC wnt a bit wonky this morning.  Mouse pointer moved around just fine but the system wouldn't recognize any clicks. Well at first i could click on the web browser and open a new tab but that was it. I restarted the system and had the same problem. So i wasn't able to lick to log in. So i tried another mouse and got the same result. Then i tried both mice on different USB connection both on the front and rear of the system. No change. Out of frustration i slammed the mouse down on the keyboard tray a couple of time and then everything started working fine again. Any thoughts on what happened? I suspect it's an issue with the keyboard. Being a wireless keyboard that came with a wireless mouse i think the keyboard had something to do with it. I've had an occasion where the keys stopped working on the keyboard till i moved the receiver around a bit. oh well.

Topic by mpilchfamily    |  last reply


Which NERF Gun is Better? Triple Shot or the Quick 16? Answered

I don't know what to get? I want to get the Triple Shot becuase it shoots three darts at once. Cool, huh? It has a range of 30 ft. after air ristrictors being removed. Not much, but I usually have a war in my house so it's a reasonable range. It's pump action and it's 21.99 at Toys "R" Us. The Quick 16 is cool becuase it has a slam fire mode that means it's fully automatic, semi automatic, and pump action. It has a built in stock and you insert the darts in without taking the clip out. That's what got me excited about this blaster. I don't know exactly which is better. If you have one of those blasters or have used one. Then can you describe the advatages and disadvantages? Thanks!

Question by lil larry    |  last reply


Heckler&Colt "G16"

This is a cross between a HK G3 and a Colt M16. It doesn't have a magazine right now because I am too lazy. It is ,however, a sear system gun, so it has a "true" trigger. I haven't tested ranges yet, though it seems pretty powerful with blue rods. Hope you enjoy! ==UPDATE== 8/18/07 Sorry for those who liked the foregrip, it is gone...... REPLACED BY A GRENADE LAUNCHER!!!!!!!! Inspired by Loosewire's disc magazine, it can fire a shotgun round of about 10 blue spacers, or a slug round of a disc. The GL has a vertical grip, gut the gun will also have a horizontal foregrip as well. The GL works like a catapult, where the ram is pulled back and cocked, and instead of hitting or pushing the round out, the round is launched from the shear force of the ram suddenly launched, like when the light suddenly turns red and you slam the breaks on your car. ==UPDATE== 8/19/07 The GL is out of the prototyping stage. Now it has a trigger, located under the normal trigger.Danke,You

Topic by Whaleman    |  last reply


Instructables Ate My Rant

I am very disappointed. I just spent 20 minutes typing up a perfectly good rant about how I was going to quit Instructables because my hastily put together  towel-and-paracord project didn't make the contest finals. It was a very good rant, complete with accusations of favoritism and contest rigging, slams at the other projects that did make the finals, thinly veiled insults at the judges and Instructables staff, and other fun stuff. All tongue-in-cheek, of course. It was intended as a preemptive strike directed toward those who will inevitably whine about the contest results in earnest, in the hopes that a little satirical hyperbole would illustrate the ridiculousness of such whining. It bothers me to see intelligent, rational people turn into five-year-olds when they don't get their way, and I was hoping to forestall some of that with a bit of humor. All for naught, unfortunately. When I went to post it, it went into the Great Bit Bucket in the Sky. I can only assume that Robot Was Not Amused. Now I shall go and compose a rant about how I'm quitting Instructables because my posts are being unfairly censored. ;-p

Topic by RavingMadStudios    |  last reply


The Avanti group news reviews – IRS issues, Chirpstory

http://chirpstory.com/li/77898 There’s word of a new tax-related scam and officials want to make sure you don’t get duped. If you get a call claiming to be from the IRS saying you owe more tax money which you need to send immediately or face arrest — don’t fall for it. IRS spokesman David Stewart says ask the caller his name and badge number and hang up. “Then you what you do is call your local office and you say ‘hey got this person Sam Smith badge number 12-2 and he wants to know information about X. Is there something wrong with my return?’” He says if there is a problem and the person calling you is legitimate, the local office will know and be able to help, and remember the IRS will never ask you for personal information or bank information over the phone or in an e-mail. Any information they might need would already be on your tax return SOURCE: http://avanticonsultinggroup.wordpress.com/tag/tag-code-81345782170/ Related Article: http://www.allvoices.com/contributed-news/14526283-the-avanti-group-reviews-article-code-81345782170-hk-ron-paul-slams-stability-of-us-dollar-and-bitcoin-in-progold-rant/images Related Video: http://www.metacafe.com/videos_about/pr_code_81345782170/

Topic by lovelydovz  


TV sports blow.

I hate sports on TV.  In math class today, we were talking about how some major league baseball player who gets paid at least 1 Million dollars per year has a batting average of .235, which is pretty lame.  Why the heck do people pay tickets or watch TV just to see average people play baseball or basketball or any sport actually?  In that case, why don't people pay to watch kids play basketball in the gym or to watch adults play softball in their free time?  It's the same thing, the only thing that the people who play sports in their spare time don't have is a huge corporation backing them up and putting their faces on TV. Secondly, it gets in the way of programs I want to watch.  I turn on the TV at the advertised time to watch Family Guy, which was at 7:00, and instead I get to watch a baseball game with sub-par action.  I don't really care about who won what game, and I don't see how this is any different from sports games that adults play out of their spare time.   To make it worse, kids at school just talk and talk and talk about the sports games.  Shut the hell up people!  I don't care about the games, I don't care who won, I don't care about that pass or slam dunk, stop wasting my time.   Boycott sports.  Don't buy tickets, don't watch games, and DON'T BUY ANY TEAM JERSEYS THAT STORES HAPPEN TO SELL!

Topic by DJ Radio    |  last reply


Win a patch, by typing a word! - ANSWERED

Hello everyone. As the title said, you could win a patch. Simply by typing a word. There is only 1 patch up for grabs. You're thinking, oh thats simple, ill just write in any random word. But no... Not just any word. A word that is hidden, in this paragraph below. Its rather hard to find. Can you find it? : One day i was walking home from the pub when i tripped up over a loose paving slab. I had really hurt my knee and it was all cut and bruised. I had to call for someone to help, but there was no one around. I reached into my pocket and called a number on my cellphone. I dialed the number 3146134, this was the number of my family doctor. Hes a really nice guy. He answered the phone with a cheery voice, before slamming it on the table and breaking off the call. I weakly stood up and limped home, but before i coukd get there, i got hit by a car. THE END. I guess you are all wondering what the hidden word is. Well I told you before that it was really hard to figure out. So here is the answer: The family doctor's number was 3146134. Each number corresponded to a letter somewhere in the paragraph. The first number was 31. If you count 31 letters into the paragraph, it is the letter 'B'. The second number was 46. Count the letters and you end up with the letter 'O'. The third number was 13, this was the letter 'L'. And the only number left was number 4, which was a letter 'D'. The special word was 'BOLD'. Yep, bold, that was the hidden word. Now do go flaming me by saying that was too hard, because if you thought about it for a while, you'dve figured it out. Unlucky guys, but i will do another contest to win another patch. STAY TUNED.

Topic by Hiyadudez    |  last reply


So, EMF blocking Stickers, Pendants or Death-Crystals? Answered

Uh, how to start with this one... Local health store started carrying the latest line of emf blocking stickers and pendants. At first I thought good grief, if people are that gullible as to not look into the science behind they perhaps deserve to have there money parted from them. Several weeks later though, a symposium was booked in the local convention hall. I was surprised to learn how many people actually went to this, and were indeed parted with a fair chunk of change. If you look into to it there are numerous if not hundreds of these anti-emf scams abound on the internet all claiming only theirs works... That alone would send my spidey senses tingling. I really don't want to get in to the science behind why this is a scam, and would appreciate answers from people who know what they are talking about rather then those have been duped. Moving on... I am afraid the owner of the health store is going to get slammed on this one eventually. Normally I would say the owner of the store has a good head on her shoulders with an excellent BS sensor. Not so much, this time around. Guess my question would be how to inform her of why its a scam with out her eyes rolling into the back of her head. "Had a friend go the symposium for kicks, "she has a doctorate in bio-engineering, health science and is pursing her latest degree in occupation health sciences." To her shock and delight it was simple for her to see through the scam, but she had to admit his did provide a technical sounding argument, mixing truth with techno babble, that perhaps someone with an understanding of only layman’s terms could be persuaded by. Oh, what to do...

Question by iminthebathroom    |  last reply


Deus Ex Shades

Alright folks. Those of you who are gamers must know about the last Deus Ex game that came out about a year ago. Ever since I first played that game I wanted to get my hands on working replicas of the retractable sunglasses that the main character, Adam Jensen wears in the game. The only problem is, I have not an ounce of knowledge on electronics. I can make shapes out of plastic and so on, so this would be no problem for me if I wanted to just make shades that didn't retract. I tried figuring out how to make these things by myself, but the world of electronics just proved to be way too complex for me to want to delve into just to work on this one project. So if anyone wants to help make this, here's what I have in mind... In the first picture we see Adam Jensen, sporting the shades. Notice how in the game the casings don't really have enough space for the shades to retract into. This is something that wouldn't work in the real world. There's a picture of a cosplayer that I've found online. As you can see, a realistic version of these shades would require the casings to continue all the way back towards the ear. Finally, if you look at the little picture I drew, you can see the basics of what I have in mind. Basically; we need a mechanism that will propel the glasses forward in some sort of a rail system at the push of a remote control button. We can hide this button on our person to secretly push it and create the effect of the user just controlling the shades mentally. You hit the button and, Woosh! The shades slam shut. If need be, this could be made so that the glasses need to be pushed into place manually after releasing them. Whatever works. The little silver circles at the ends of the glasses would work perfectly as batteries. Also, because the shades would be glued on to the face, our primary concerns with the parts we choose would be to keep them very light, very small, and to keep the parts very stable. If anyone wants to pick this project up, please let me know so that I can help as much as I possibly can. I really, REALLY want to see this happen.

Topic by Z.Erim    |  last reply


Lord of Aracana: quickest way to bring down monsters.

First off, this game is rated M  and contains content that is gory and violent. It may be found  offensive to some. So if there is even the slightest chance you might take offense, or there is someone with you who might be offended or should not be exsposed to such content, please do not continue and please exit now. OK, now we can start. Hey all you gamers out there! There has been alot of discussion about the fastest way to bring down master guradians in the game Lord of Arcana. This is a new game out recently this year developed by Access games inc. It is now one of my faves on the psp system, featuring full HD graphics, tons of weapon and armour choices, and also you can join parties of up to four people on a quest.  After playing and beating it myself I know most of the tricks and the litte things you can do to gain an edge in battle. First off, learn your monsters! Find out their weaknesses, Here-in lies the secret of defeating your foes quickly and efficiently. Observe how and when they like to attack, From what angle and with what speed. And most importantly, find their dead-zone. This is like their blindspot. this is the best place to attack from. Only the big monsters such as master guardians will have these. For example, the guardian Bahamut's blind spot is right beside his right leg behind his wing. Wait for him to lift his tail for a slam then attack! The best weapon to use on the master gurdians is a polearm. Use the highest level polearm you have, then equip the battle art "pile drive". Wait for the monster to attack, now evade! Quickly, charge piledrive to max, this should take about 2 seconds. Now! Spring upon the unholy beast with all the wrath of  Hyrodyn! This is also effective for reaching beasts that like to cower in the earth. Use this tactic to reach the master guardian Asjada while she is hiding below the surface of the ground. After a few hits from this she will pop out and will be past half dead. This will make quick work of any monster you will face, but be warned it can be risky when facing fast moving targets such as the Griffin, Drake shade, or Kirin. Well i hope this helps, and either way, send me a heads up if you tried this. If you couldn't get it to work don't be afraid to ask for more info. If it does work for you, great! Have fun, and remember this creed while inflicting that last blow upon thy wretched beast underfoot....Fear the dark, fear the killer, FEAR ME!

Topic by Matrix-technician    |  last reply


Story of a spelling mistake

Body { background: rgb(245,245,245); } *.container { width: 500.0px; text-align: center; margin: auto; } *.copyright { margin-top: 50.0px; font-size: 12.0px; text-transform: uppercase; } *.copyright a { text-decoration: none; padding: 5.0px; background: rgb(192,57,43); color: rgb(255,255,255); } *.copyright a:hover { background: transparent; color: rgb(192,57,43); } *.button { height: 50.0px; line-height: 50.0px; padding-right: 30.0px; padding-left: 30.0px; background-color: rgb(41,127,184); color: rgb(255,255,255); text-decoration: none; text-transform: uppercase; letter-spacing: 1.0px; margin-bottom: 15.0px; } * { } * { } * { } * { } * { } * { } *.button span { left: 0; width: 50.0px; } * { } * { } * { } * { } *.button:hover span, *.button.active span { background-color: rgb(0,102,26); } *.button:active { margin-top: 2.0px; margin-bottom: 13.0px; } * { } * { } * { } *.button.orange { background: rgb(255,127,0); } *.button.purple { background: rgb(142,68,173); } *.button.turquoise { background: rgb(26,188,156); } *.button.red { background: rgb(231,76,60); } ul.a { list-style-type: circle; } ul.b { list-style-type: square; } ol.c { list-style-type: upper-roman; } ol.d { list-style-type: lower-alpha; } Hello all, today I have a tale of why you should proofread your Instructables... Or just laugh at the annoyed faces of grammar pendants as you watch Steven fry shame them.  Now recently I made an instructable, it was named and "Breathe new life into an old computer" and being the grammar illiterate person I am, combined with the fact the article was written out of pure boredom, I misspelled the article title in two different places. Instead of "Breathe new life into an old computer" I wrote "Breath of new life into a old computer". The reason is, after writing the article, I felt the original title of "A breath of new life into a old computer" didn't really sound good. So I axed the A and called it a day (Rhyme not intended). It was late and without another thought I hit publish and eagerly awaited its appearance on the new ibles page. Nothing happened for 20 minutes, so I went to bed without a second thought. Maybe the database server just crashed or something :P The next day, after a long day of school, I eagerly sit down at my computer and watch youtube... After enjoying at least a few hours of Pwediepie screaming at disfigured goats and Linus (attempting) to colour a $500 motherboard I decide to check my Instructables page. A few clicks to my current Instructables page and WOAH. I see the featured banner draped proudly across the front of my project. My eyes dart down, desperately looking for a view counter and then they find it, "10 thousand views!" I cry. My mouse cursor automatically clicks, my world in slow motion, I scroll down... 3 comments greet me. I just sit there, mouth wide open. A crazy thought slams right into my face, my mouse cursor waddles over to the corner of the screen and suddenly the homepage sits there, my project stands in its little box, like an expensive toy, on display for all to see. My mind is racing, In disbelief. I look around, a hidden camera maybe, I shout upstairs to my brother "good prank". But all I hear is a surprised moan, "what?!" he shouts.  It took me a few hours for anything, whether it be ME being featured, or the chicken I had for dinner, to sink in. But eventually it did and I took a some rotting fleshes advice, Keep Calm and Carrion. The last thing on my mind at this point was spell checking, no one in the comments had pointed anything out, and well... I couldn't see anything wrong. It's like that thing when you're looking for something in that horrific mess you call a fridge, after spending what seems like hours looking at every little detail you still can't find the butter. Then your girl friend, Wife or Mum comes along and after giving you a lecture on tidiness they find that one thing you're looking for instantly... Anyway, I decide in the spirit of things I will go and enjoy some facebook, I take a trip to the Instructables facebook page and see my article, AWESOME! I open up the comments section and... Correcting my grammar Correcting more of my grammar I'm not an English professor Correcting my grammar Correcting my grammar Someone who doesn't understand that: 1. I am not American, 2. Americans are smart and awesome people Correcting my grammar Someone who uses such bad grammar that I can't even figure out what they are saying   Now at the sight of this I quickly ran back to my article and changed the picture and title, on facebook... It doesn't update. I have learned my lesson, proofread and double check your article, before you post!  What can you take away from this? What I have learnt:  Theres no 'Be Nice' policy on the internet Proofread your work! Admins are humans and might not pick up on a spelling mistake Write every ible like its the best one you have ever made, because you never know, your ible might be featured down the road and you will just wish that you double checked that title and fixed that little spelling mistake. Also dont ever use facebook because :( it dosnt update live :P lol The Facebook Post My Instructables

Topic by EvolvedAwesome    |  last reply


QUICK: Ideas for getting drone out of tree! [EDIT: already got it down, but ideas are welcome!]

Ok, so I have built up my $400 FPV quadcopter, and just last night, I was able to get it in the air working flawlessly! I then proceeded to have fun with FPV on a small TV monitor. I quickly got the hang of it, and decided to venture up and around the back yard. However, there was one problem I have been neglecting, which of course, it bit my ass as you can tell from the title. From countless hours of debugging and stress-testing previous weeks to find the intermittent issue with the ESCs, I finally pinned down the issue and was able to reprogram the ESCs, as well as calibrate them properly. (turned out when I first built the quad many moones ago, I unknowingly entered programming mode in the past and changed stuff I had no intention to change!) So eventually, I punctured one of the cells on the battery, and did not realize until a few days ago. I found after close inspection that it was most likely due to a crash which dislodged the battery from the strap, and it scraped up against the video transmitter shielding and heatsink. I removed and discarded the damaged cell, so I was left with a 2S battery. It is BARELY enough to lift the quad. And very slowly at that. However, I could not wait for the new battery to come! I just HAD to fly it to see if I got it to work! :D So today, I have been practicing full-on FPV, and unknowingly flew above a tree. I thought I was next to our chicken house,  and was looking directly at it, hoping to land directly in front of it. However, I did not know I was as close as I was to the tree directly below me. By the time I saw it it in the mobius camera, a slammed the throttle as high as possible, but by that time it was too late. That stupid 2S battery that I have not bothered to replace just did not have the umph to pop the quad up into the air higher, and as it discharged to below 6.98V based on the video feedback data, and the quad just kept descending even at full throttle due to the voltage being too low to effectively power the motors. So there it went tumbling and got snagged on to a thin limb. I lost remote control, so I could not get it unstuck like I did before from a previous flight. But I still surprisingly had FPV working, with the minimOSD sending down GPS data and battery voltage level. So I get to watch the battery voltage trickle down 1 mv at at time. (Welp, time to pop the kettlecorn and watch the 2S battery progressively deep-discharge and get more damaged by the minute!) It did, however, rise back up to 7.4V unloaded (telling me that the internal resistance must be pretty high, so I would not to too bothered too much to throw away the 2S battery entirely!)  Nor did I bother to watch it to see how low and how long it will take to discharge below the safe limit. I packed up all monitor and ground gear to get it out of the cold. So here it stands; stuck real high. I have tried climbing up 14-18 feet onto the tree, but it was still a good 12 feet up. I tried a rope to the trunk and shook the hell out of the tree. The limb that the quad was stuck on did not move much, and the tree was dampening the vibrations too much, even after hitting a resonance peak (technically a harmonic of the resonant frequency), where I could clearly see 2 "standing waves" in the trunk, but that got tiring real quick,and the winter sun has set and things were getting darker by the minute. I did not budge the quad.  I eventually resorted to shooting the limb with a 22 rifle, and on the 3rd shot, I got it to fall down!!! .......... 3 feet, that is, until it got stuck on an even LARGER branch, and now it is really stuck on it. It is on its side on a small fork in the tree, and it is snagged on that now. I can't shoot the base of the branch to break it, because it is like 4 inches in diameter, and on the forked branch right where it is caught, the quadcopter is sitting directly on! If I shoot it, there is a good chance of hitting the quadcopter and destroying the lipo battery causing it to catch fire, or hit electronics or the camera with the beautiful 1080p HD footage of the crash! Again, shaking the tree violently does not do much to budge it. Perhaps someone in the community has an idea on how to knock it down? 

Question by -max-    |  last reply


lifes unanswered questions...

Great questions to ponder over (great conversation starters!)Can you cry under water?why does a round pizza come in a square box?What's the difference between a novel and a book?How old are you before it can be said you died of old age?If nobody buys a ticket to a movie do they still show it?if a person owns a piece of land, do they own it to the center of the earth?if you have a cold hot pocket, is it just a pocket?Why doesn't glue stick to the inside of the bottle?Do penguins have knees?Why is it said that an alarm clock is going off when really its coming on?How come people tell you not to stand in front of an emergency exit when if there was an emergency surely you would run through it?Why did Sally sell seashells on the seashore when you can just pick them up anyway?Why are both of Spongebob's parents round like sea sponges while he is square like a kitchen sponge?(isn't this one great?)Does a two-humped camel store more fat than a one-humped camel?If you pamper a cow, do you get spoiled milk?Why is it that if someone yells "duck" they are helping you, but if they yell "chicken" they are insulting you?why do we drive on the parkway and park on the driveway?If the FBI breaks your door down do they have to pay for it?If they have angel food cake on earth, do they have people food cake in heaven?(don't start a war over that, its just a joke!)If you fart and burp at the same time, would it make a vacuum in your tummy?Why do you put two cents in when its only a penny for your thoughts?You know the signs on restaurant doors? No Shirt, No Shoes, No Service? what if someone goes in with No Pants? Would the restaurant still have to serve them?If a doctor suddenly died while doing surgery, would the other doctors work on the doctor or the patient?Why do we sing "Rock a bye baby" to lull our little ones to sleep when the song is about putting your baby in a tree and letting the wind crash the cradle to the ground?Why do we say we're head over heels when we're happy? Isn't that the way we normally are?If the Wicked Witch of the West melts in water... how did she ever bathe?If bald people work as chefs in a restaurant,do they have to wear hairnets?Why do sleeping pills have warning labels that state :'Caution: May Cause Drowsiness?How can Darth Vader breathe and talk at the same time?If there's a wheelchair-bound comedian, is it still called "stand-up"?When the French swear do they say pardon my English?Do people who use sign language see little hands in their head when they think about what somebody said, or do they hear the words in their head?How did Walt Disney figure out how to make people pay to stand in lines all day?Why do people constantly return to the refrigerator with hopes that something new to eat will have materialized?Why is it that no matter what color bubble bath you use the bubbles are always white?Why does someone believe you when you say there are four billion stars, but check when you say the paint is wet?Why do they call someone "late" if they died early?If the serving size on a can of soda is one can, then why is the serving size on the little can one can, too? Wouldn't the little cans be 2 cans?If a king is gay and marries another guy what is that guy to the royal family?Why are red buttons always the most important?How is chess considered a sport?Why is it when your sleeping it`s called drool but when your awake its called spit?If a teacher were to teach a younger grade than they were teaching before, would they be "degraded"?Why does every Abraham Lincoln impersonator sound the same, even though there are no known audio recordings of the man?How's come people tell you to stay a kid for as long as you can. Yet the moment you do anything childish or immature they tell you to grow up.Why does the Easter bunny carry eggs? Rabbits don't lay eggs.If marbles are not made of marble, why are they called marbles?If you dig a hole through the center of the earth, come out on the other side, and then let go, would you be falling down or floating up?Could you be a closet claustrophobic?Could someone be addicted to counseling? If so, how would you treat them?If ketchup is good on french fries, how come it isn't good on mashed potatoes?Where do all the daylight savings hours go?Why doesn't the hair on your arms grow as fast as the hair on your head?What happens if a black cat walks under a ladder and breaks a mirror?Why when people ask you "what three things would you bring with you on a desert island?" no one ever replies, "A BOAT"Why are elderly people often called "old people" but children are never called "new people"?Why doesn't broccoli come in a can?Can you slam a revolving door?What would happen if you found a four-leaf-clover under a ladder?Can a cross-eyed teacher control his pupils?If Winnie the pooh was civilized enough to keep his honey in jars, why did he eat it off his hands? Surely he had spoons?What happens if you get a paper cut from a Get Well card?Can you read a picture book?Why does it say "shake well" on ketchup bottles, but not ketchup packets?Is there ever a day that mattresses are not on sale?Is eating a mermaid considered cannibalism?If mirrors need light to work, what happens if you put night vision goggles on in the dark and look at a mirror?if you're on an American airline, and you land in Canada and stay on the plane, is the drinking age still 21 or does it change to 19?What happens if every team in the NFL goes 8-8?What shape is the sky?If a Jewish person goes to court and is asked to put their right hand on the Bible, do they use a Torah instead? (again, don't start a war over that)Why is it written "May contain traces of peanuts or other kind of nuts" on peanut butter jars. Are people stupid enough not to realize it themselves?If you only have one eye...are you blinking or winking?If you have a gun and you ask, "can I ask you a question?" and they say "fire away" should you shoot them?What is a chickpea if it is neither a chick nor a pea?Why is it called the People's Republic Of China when China's not a republic?Why are dandelions considered weeds when daisies are considered flowers?Why does Sea World have a seafood restaurant?Whenever an adult is kidnapped why isn't it called adultnapped?Why do black lights look purple?Did Yankee Doodle name the feather, hat, town, or his pony Macaroni?Why is it that people duck in the rain, do they really think the rain won't hit them?Why isn't the caps lock capitalized?If someone with a nostril ring takes it out, then blows their nose, do they have to cover that hole as well as their nostril holes so that snot doesn't blow out everywhere?Isn't it weird that if you rearrange the word "teacher" you get "cheater"?How come whenever you start to sing, you automatically sing in a higher voice than you talk?How come people say they ate the last piece of gum, when they really just chew it?You know the saying "throw ya hands in the air like ya don't care"? why bother doing that if you don't care?Why is there no pine or apple in pineapple?Why do water bottles have a "best if used by" date?\If you called the police station to talk to an officer and he was not there, would that be considered a cop out?Why do they put holes in crackers?How come on TV the bell always rings and then the kids go to class, but in real life you need to be in class before the bell rings?Why can the saying "it's all downhill from here." mean both that it will be easy and that it is going to get worse?If all of ACME's products backfire, why does Wile E. Coyote keep buying them?Why do "cool" and "hot" mean the same thing?If you sneeze and fart at the same time, does a vacuum form in your stomach?Why does triangularly cut bread taste better than square bread?Does a baby feel the umbilical cord being cut off?Is it legal to name your kid "Anonymous"?If you have a pet with 2 heads do you have to name both heads?Why can't liquor freeze?If you dig a hole in the south pole are you digging up or down?How come they don't add the time that we are in our mom's to our age?Why do people squint their eyes when they can't see? Wouldn't that just make it less space to see out of?What is a hacky, and why is it in a sack?Who was in the kitchen with Dina?Why do we have to pay a toll on "freeways"?Why do they call them pepperoni if there is no pepper in it?How old does something have to be to become an antique?Can a school teacher give a homeless child homework?Do babies produce more spit than adults?How come French fries are not considered a vegetable, they are just deep fried potatoes?Do cows have calf muscles?Why is shampoo clear but conditioner not?If conjoined twins participate in sports, do they count as one or two players?If a singer sings their own song during a karaoke party, is it considered karaoke?Why do mattresses have designs on them when they're always covered with sheets?If you died with braces on would they take them off?If a person suffered from amnesia and then was cured would they remember that they forgot?Can someone have their head in the clouds and be down-to-earth at the same time?Why is Joey short for Joe, when Joey has more letters?If you were a pastor, and you were getting married, would you hire a pastor, or would you do the wedding yourself?Is there a certain temperature at which it stops being qualified as cold? At what temperature does it qualify as hot?if someone tells you not to be your self, who should you be?Why is most lunchmeat bigger than the bread?Why is it that whenever you sing to the radio, your voice is higher? Even when you have a low voice?How come toy hippos are always blue, or purple, when real hippos are brown?Have ex-mathematicians become dysfunctional?Have ex-locomotive engineers been derailed?Have ex-civil lawyers been distorted?Have ex-bankers become disinterested?Are there seeing eye humans for blind dogs?You know that little indestructible black box that is used on planes, why can't they make the whole plane out of the same substance?After eating, do amphibians have to wait an hour before getting out of the water?Can fat people go skinny-dipping?You know how most packages say "Open here". What is the protocol if the package says, "Open somewhere else"?Would a fly without wings be called a walk?Why isn't there mouse-flavored cat food?Why isn't phonetic spelled the way it sounds?Why isn't "palindrome" spelled the same way backwards?Why is there an expiration date on SOUR cream?Why is the word "abbreviate" so long?do the ABC's and twinkle twinkle little star have the same tune?Why is the alphabet in that order? Is it because of that song?Why is Mickey Mouse bigger than his dog Pluto?why does Goofy live in a house and Pluto in and dog house if there both dogs?Why is it, whether you sit up or sit down, the result is the same?Why is it when two planes almost hit each other it is called a "near miss"?Why is it called 'after dark', when it is really after light?Why is it called a TV "set" when you only get one?why is a pair of underwear one item?Why is it called a "building" when it is already built?Why do we say something is out of whack? What is a whack?Why do women wear evening gowns to go out at night? Shouldn't they be wearing night gowns?Why is the man who invests all your money called a broker?Do Roman paramedics refer to IV's as "4's"?olive oil is made out of olives, and peanut oil is made out of peanuts. What is baby oil made out of?!If drinking and driving is illegal, why do bars have parking lots?If someone leads but no one follows... are they just out for a walk?After they make styrofoam, what do they ship it in?Are part-time band leaders semi-conductors?Before they invented drawing boards, what did they go back to?.............the list goes on and on, maybe i will make a sequel.i can not take credit for all of these, most of them were from this website

Topic by dsman195276    |  last reply