R5, Bolt Action Carbine

Hey guys! After the "rebuff" I received from ZakS and FlyingFish10 (and more kind comments from TheDunkis and Raz1r Knex Bull3t) about how my K'NEX Gun: Declaration (R2) looked just like a ZKAR (to which I disagreed), I decided to rebuild and heavily edit my K'NEX gun Declaration (R2), changing the body and mechanisms so heavily that the comparison between it and the ZKAR would be virtually non-existent. After about three days of hard work, I have finally come up with this gun, the R5. With a brand new trigger mechanism and bullet transfer system, this gun is ENTIRELY different from any other bolt action gun you will find. While the bolt itself is heavily similar to the ZKAR / Zaktangle, almost everything else is entirely unrecognizable (except the magazine, that's a pretty standard yellow rod magazine). Features: Brand new trigger mechanism Brand new bullet transfer system Heavily edited (and improved) pin guide setup Comfortable stock Very reliable New magazine setup, with magazine breach Comfortable grip Flip-up back sight Great range: 50 - 70 ft. Preloadable magazine Internal magazine pusher 12 rd. magazine (could be increased) This version is by no means finished, but when I do finish it, I'll be sure to post a full set of instructions. Check out the image notes for more info. Tell me what you guys think I should change or add to this gun. I'd love to hear your comments. Quick Tip: When you have a magazine that is full of rounds try and make the last round different in some way, so that when you shoot the gun you know when the magazine is empty. This will prevent you from shooting the magazine pusher, and make it so that you don't have to keep track of how many rounds you've shot. -The Red Book of Westmarch

Posted by The Red Book of Westmarch 4 years ago

Dropping out of TGKTR3

As the title suggest, I am dropping out of the tournament. There are several reasons why.1. People don't like the founder of the contest being in it.2. I want to judge this last round personally so people probably won't like me judging my own entry.3. I already started taking apart my unfinished entry.For all those wondering, this was going to be my entry: http://www.youtube.com/watch?v=a6ekJEyP_FE

Posted by jollex 9 years ago


Round 3Last round.RulesMake a ball machine.Deadline: June 1st

Posted by jollex 9 years ago

ROTFLOL!! Yahoo Mail Vid

OK, sorry about forcing this on you, but it was just TOO FUNNY, Frodo and Gandalf text there way through LOTRVideocan not find yahoo video ID: https://us.ard.yahoo.com/SIG=14ureerp4/M=341232.12015912.12561458.6055752/D=regst/S=150001465:R2/Y=YAHOO/EXP=1207796968/L=.ITu8NG_XHKpuyVpR_1oogEBRF2HA0f9aMgADikv/B=KnQAQUSOxJE-/J=1207789768955420/A=5309423/R=0/SIG=11f551dpe/*http://overview.mail.yahoo.com/featured_video[https://us.ard.yahoo.com/SIG=14ureerp4/M=341232.12015912.12561458.6055752/D=regst/S=150001465:R2/Y=YAHOO/EXP=1207796968/L=.ITu8NG_XHKpuyVpR_1oogEBRF2HA0f9aMgADikv/B=KnQAQUSOxJE-/J=1207789768955420/A=5309423/R=0/SIG=11f551dpe/*http://overview.mail.yahoo.com/featured_video link to vid if embedding didn't work]

Posted by KentsOkay 10 years ago

50 papercraft robots

Holy moly! It's 50 papercraft robots in one place page! Check out this pretty sweet gallery of loads of future potential projects. I'm loving the R2-D2 myself, but many others look worth the time as well. Oh, if only that Obama one wasn't a one-off. Ah well. 50 Awesome Papercraft Robots via GeekDad

Posted by fungus amungus 8 years ago

Where will the Instructables booth be at Maker Faire?

I missed the kick off ice cream social thing last night but I'm volunteering on Saturday at Maker Faire and really excited to see all the cool stuff.  I remember reading something about the R2-D2 area somewhere but when I look at the map I see an Autodesk area as well. I'm guess it'd be at the Autodesk area but if anyone sees this in time and has any info, please share. Thanks and maybe I'll see you there! 

Posted by sherrycayheyhey 6 years ago

DIY Instructables Handbook

I just had a great idea, different instructables people should make different handbooks for different subjects that they are good in. Those types of books at stores are usually really overpice and have a ton of information that you'll never use and just makes the book fatter. I'm personally making an electronic on, fitting 4 pages on one 8 1/2 x 11 sheet, making each sheet of the book ~3.25" X ~4.5. If you make one please upload a pdf file so that others can download it, cut it, and assemble it to have a crafty pocket refrence!This is the table of contents of electronic book (so far):TABLE OF CONTENTSFormulas....................................Definitions andSchematic Symbols....................Conversions................................Prefixes.......................................Resistor Code.............................Capacitor Code...........................Inductor Code..............................AWG Specifications.....................General Electronic Tips...............First page:General outline:E=VoltsI=CurrentR=ResistanceP=Watts (Power)L=InductanceC=CapatanceG=ConductanceOhms Law: E=IRPower Formula: P=IEResistors in series: Rtotal=R1+R2+R3...Resistors in Parallel:Rtotal=(R1-1+R2-1+R3-1+.....)-1orstill working on it (and the subscribts and superscripts didn't translate too well, but you get the idea.If you have any formulas that you want me to put in the electronics reference then post a comment!Some topics for references could be:WoodworkingConstructionCookingRadioetc.

Posted by guyfrom7up 10 years ago

help with shorting probem on my curcuit

This circuit does not work because of a problem with power shorting to ground at the motor. I think that is the only problem. The servo provides a 4.5v power source and the polarity can switch allowing the original 4.5v servo motor to run forward and reverse. I am making this to run a motor on 12v and the servo on 4.5v. R1 keeps the transistor saturated and the R2 is in there because I read it would help the transistor turn off completely. I made this circuit work (the right voltages went to the right places) in one direction but now it is more complex, I think I’m having a shorting problems. Can anyone help?

Posted by kendallickes 9 years ago

Laptop Fan Help!

So i bought a 2.8ghz laptop from a guy for $30i fixed EVERYTHING, invested about $200 of my hard-earned moneyand now the CPU fan wants to crap out on me >: ( the fan works, the circuitry that controls the fan has failed (on the mobo)so what i am asking is that you help me!i need to be able to regulate the 12v that comes from the battery into lower voltage, with a variable power supply, https://www.instructables.com/id/How-to-Build-a-Bench-Top-Power-Supply/I need someone to do the calculation so that i can regulate voltage form 4.5v - 12v what would be the resistance values?VOUT = 1.25 * ( 1 + ( R2/R1 ) )

Posted by Sandisk1duo 9 years ago

Help with DC motor control circuit

I am looking for some advice in regards to a DC motor control circuit i am trying to build out of some electronic parts I have lying around. See attached control circuit diagram.  The idea is that a timer will trigger the relay to either run the motor in reverse at full voltage or it will run forward stopping and starting as per the wave form from the 555 timer. So on for about 2 seconds and off for about 2 seconds. This waveform can be changed using R1 and R2 which are trim pots.  The circuit works as expected until I hook the motor up. When the motor is meant to be following the waveform from the 555 it will actually stop and start very erratically. Any help on the reason for this would be great.  Also this is one of my first electronics projects and any feedback on my design would be appreciated. 

Posted by jmullo 2 years ago

Velleman Sound to Light module LEDs always on.

I  have made the velleman sound to light project: http://www.vellemanusa.com/downloads/0/minikits/manuals/manual_mk103_rev1.pdf the LEDs are supposed to turn off when there is no sound and go bright when there are loud sounds. Mine are bright all the time. I first tried the kit using my own blue LEDs instead of the red ones supplied, these worked for a time then they just stated to give a VERY small amount of light. I switched to the red ones and now they are on high all the time. I also accidentaly connected R3 with C4 (see PDF). C1 and R2 are also connected by solder, im not sure if it should be like that, I also kinda damaged the C1 connection hole as I partially burnt it with my soldering iron D:.  Could any of these issues be the reason why my kit inst working? I have attached pictures of my board Many thanks, Rushmoore :)

Posted by Rushmoore 3 years ago

What Apps/Utilities Do You Use Often/What's In Your System Tray?

My, system tray, in no particular order:Internet Call Director - I have dial-up so when someone calls me it disconnects the computer from the internets and reroutes the call to the phone.[pidgin.im Pidgin] - Awesome instant-messaging client. Compatible with about 15 different networks (MSN, AIM, ICQ etc.).My Dial-up internets connection icon.[opera.com Opera] - Opera web browser.Volume ControlAvira Antivir Personal Edition Classic - My antivirus program.Sound Volume Hotkeys - Use winkey + up/down arrow keys to change volume, handy when there's no volume dial (ie. headphones).WinRoll - Rolls up windows to their title bar, transparency, minimize any window to the system tray, stuff like that.[r2.com/au System Lock] - Click to password protect system. Hides everything on the desktop.What's in yours?

Posted by Aeshir 11 years ago

Noisy pot issues?

Hi, I've been experimenting with a variable output power supply. It takes 18V @ 2amps in from a wall adapter. It uses the LM2596 simple switcher as a regulator. My circuit is more or less the same as the test circuit from the datasheet (image attached). The only thing I've changed is that R1 is a 5k trimpot and R2 is a 50k 10-turn pot. The trimpot is so I can dial in the proper value for R1 and the other pot is to vary the output voltage. It works more or less as it should. The one issue I'm having is I think due to the inherent "noisiness" of potentiometers. When I turn the knob (sometimes it seems when I just touch it), the output voltage will "spike" up. It eventually falls back down to where it should be and stays steady, but it seems to spike everytime I adjust it. Does this indicate a bad pot? Or is there some additional filtering circuitry I can put to avoid these spikes or ripples? Would another L-C filter help? Thanks in advance,

Posted by deadbilly 10 years ago

Star Wars X-Wing Rogue Squadron Costume

Hello Fellow Instructables Members! I created this costume over the course of 2011.  It is an X-Wing from Star Wars.  My friend and I designed it, and I built it.      The total cost was about $120.00.     The original plan was to make it simply a costume i could mount on the frame of a hiking backpack.  I decided to add in the option of placing it on my bike in order to take of some of the weight.  I had a bit of an issue with the front wheel though.   I can only make it balance when i am strapped into the backpack and sitting on the seat.  I should have thought this one through a little more clearly.  It would seem not everything in life can be "Winged."     The backpack mount is set just where R2-D2 would be.  I used my Dremel and cut a hole out a of a salad bowl.  It is not in the picture due to issues I had with wind conditions at the time and balance.  I'll upload pictures soon.  And yes, you can see out of the cockpit.  Seeing in, well, that's another story. Materials: ~ PVC pipe ~ Spray Paint ~ Hiking Backpack Frame ~ Insulation Foam ~ Red Hot Blue Glue ~ Glue Gun ~ LOTS OF ZIP TIES! Wingspan: 10' Length: 14' Any Questions, please feel free to message me :D Before I put the covering on it here is a test I did :

Posted by _-MacGyver-_ 6 years ago

The Instructables Rating System

As you have all noticed, Instructables has recently implemented a new rating system, based on stars (insert 2001 A Space Odyssey joke here). We've done a bit of experimenting -- and reserve the right to do more in future -- but it's stable for now so here's how it works. UPDATE 2010-09-24: The below calculation has been tweaked to bring Instructables' ratings closer to the level of ratings of comparable content on the Internet generally.  We found that we run about a star low, based on a rough look at a bunch of other sites and our (totally unbiased of course!) estimates of their content quality.  So, we have added a star to all ratings across the board.  It's like grade inflation... but we know our users put up really good stuff and we want that to be recognized. UPDATE: we've tweaked the system a bit more. The below describes the rating system as of 2008-11-15. The rating system uses a weighted average, where Instructables with only a few ratings, or ratings by users who have not rated many Instructables, have a total closer to the middle of the star range than the actual average of the ratings. For example, an Instructable with one five-star rating will have a total closer to 4 than to 5, because there are so few ratings on it. If the user who rated it hasn't rated other Instructables, the total will be lower than if the user who rated it has done a lot of rating in the past. The purpose of this difference is to minimize the effect of 'shill' ratings; we've seen some members attempt to bump their ratings by creating fake accounts just to rate up an Instructable or two! As more people rate each Instructable, the total becomes closer and closer to the true average of the ratings. And as each user rates more and more Instructables, we weight their rating higher and higher. We have done it this way because we want the rating to reflect the opinion of the whole community, and we believe that members who do a lot of rating have been around enough to have a good sense of what makes a good Instructable. Also, members who comment and rate have their rating counted higher, as the comment indicates a higher level of involvement with the Instructable than rating alone. This method makes it so a less-than-stellar Instructable can't be pushed to the very top of the ratings because the author got their friends to sign up and rate it at 5 stars; similarly a really good Instructable can't be dragged too far down by a malicious user. For the mathy amongst you, this is the formula (we changed the way one component is calculated): (siteAvgNumRates * siteAvgRating) + (numRates(ible) * avgRating(ible)) R(ible) = ---------------------------------------------------------------------- siteAvgNumRates + numRates(ible) The avgRating(ible) is no longer a straight average, but a weighted one. It's calculated like this: (W1*R1 + W2*R2 + ... + Wx*Rx) + 2(V1*C1 +V2* C2 + ... + Vy*Cy) -------------------------------------------------------------- (W1 + W2 + ... + Wx) + 2(V1 + V2 + ... + Vy) Pretty complicated algebra, huh? W and V are both weight values, between 0 and 1. R is the rating of someone who has not commented, and C is the rating of someone who has commented. siteAvgNumRates and siteAvgRating are estimates, held constant in the pursuit of not having ALL ratings change every time one person rates one Instructable. As you can see, when the number of ratings for a particular Instructable is low, the weight of the site averages count for much more of the rating value. When the rating count is high, the site averages are only a small part of the total rating value. We believe this algorithm has a good balance between letting the cream rise to the top, and preventing 'rating spam' to coin a term. Please comment!

Posted by rachel 10 years ago