Ozone generator

I noticed there is no usuable Intructable that I could find for a homemade Ozone generator. Ozone can be used for many things - if used correctly. Commercial Air - Water Pruifiers use it, you can get rid of harmful pesticide and chemical residue while cleaning your salad or "clean" the air after a big party with a lot of smokers. Since the basic design and work priciple is more than easy I was wondering if there is a need for an Instructable? But with Ozone not only being of concern for the enviroment in terms of smog but also being a health risk in higher concentrations I am not so sure if it is a good idea. After all we don't want to cause any harm with our projects...

Topic by Downunder35m 4 years ago  |  last reply 3 years ago

LEDs - Is there a way to transmit an LED light wireless to another location?

Is there a way to transmit an LED light wireless to another location without having to attach to the original LED itself?  In other words, the transmitting device would capture the LED light when it turns on via a fiber optical cable or other light capturing device and then transmit the light to the receiver.  Actually, the light does not have to be duplicated, just some sort of signal sent to the receiver to indicate when the LED is illuminated, but again without having to solder the original LED.  

Topic by tmal123 3 years ago  |  last reply 3 years ago

Transparent Electrical Insulator Film

For a project of mine I need to apply a <1um thick film that is electrically insulating, but transparent to UVC & UVB (and preferably up to visible). Does anyone have any suggestions?

Topic by SillyInventor 3 years ago  |  last reply 3 years ago


How come noone posted a DIY yoyo yet? I make them so I thought someone would've posted it by now. You can make cool mini plastics out of cheap crappy party favors from any party isle at the store, Butterfly and regular. I have to make an extra thin string for them but they sleep and fly nice. Anyone else ?

Topic by jimmyb0nz 10 years ago  |  last reply 3 years ago

Got a BLOB image when trying to upload a screenshot using copy paste

1. using windows 7 with chrome 30 summary: While preparing a new instructable, I wanted to add a screenshot image. I clicked upload image,  and copy pasted my screenshot.  To reproduce: 1. Start a new instructable and click the +Upload button (where you get the "Drag files here" area 2. Click Printscrn to take a screenshot of your screen 3. Press Cntrl+v to paste it (don't drag anything) 4. A thubmail of the picture will appear, saying that it is ready for upload 5. upload the picture result Instead of an image, you'll see the text Blob. Try to edit the blob image fails, with a link leading to a 403 "Request forbidden by administrative rules." expected result: The image would  now be added to the step * If possible, please fix and remove the blob from my instructable to be here.

Topic by ykohavi 5 years ago  |  last reply 3 years ago

Could I build a giant magnifying glass? (And maybe incorporate it into a steam engine?)

Optics are fun, and so following that logic, scaled up optics should be even more fun. And so this leads us to: How do I build a giant magnifying glass?The sun has a lot of power, and I want to harness that energy, and try out a few things, including the interesting prospect of using it to power a steam engine. (Heat up something, run water over it, and run the steam through a turbine).Several methods have come to mind, including: acrylic, freezing some water in specially-shaped bowls, and sandwiching water (which has a slightly higher refractive index than ice) between two parabolic pieces of plastic. I'm personally concentrating on the last one, as it would be more permanent than the ice.Just thought this up: freezing a lens, and then coating it with something immediately so that it will stay once it melts. What do we have that is clear, dries quickly, and readily available?Does anybody else have experience with this?UPDATE: Some relevant links...An ideal result.Parabolic mirrors are another possibility, but I'm still more interested in a lens.Where a lot of this sprang from.Indices of refraction. Is it Indices or Indexes?Hmmm....

Topic by carbon 12 years ago  |  last reply 3 years ago

Adobe ..... unable to load module - How to fix the start problem in regards to the video driver

I had to install Adobe Premier for a friend with no real clues. Anyway, all was good and registered but the first start was aborted with an error stating that a module for the graphics card could not be loaded. The misleading suggestion underneath, stating to updated the graphics driver was of little use as the latest Nvidia driver was already installed. A support request with Adobe gave the suggestion to fully uninstall all Adobe products, using their clean up tool. After that a reboot and fresh install of all. You guessed it, Premier CC would still refuse to start with the same error. Google was of no use this time but a system check revealed the fix: Premier was trying to load quite a few things but some have been blocked by the virus scanner for no good reason. After setting exceptions for the problematic files I also checked the firewall and gave full access to all Adobe Premier related tasks. And sure enough there was no error message anymore! So if your Adobe product fails to start with an error in regards to being unable to load a module you might want to disable your virus scanner and firewall to check if they are to blame. I hope this might help all those lost with no useful support.

Topic by Downunder35m 3 years ago

Replacing black ink with colour ink

Hi, I'm trying to do a uni project and I'm not having much look at the moment. What I want is for the ink in the black cartridge to be a colour ink instead of black. It did seem to work but now it's not. I flushed the cartridge with water several times to clean it out and then placed magenta ink in and the first through prints it started to print the Magenta but then stopped and how all it seems to do is leak from the cartridge and flood the base. The printer is a HP 1220c using HP 45 Cartridge which has the print head on the actual cartridge. Can anyone suggest anything? Thanks Phil

Topic by drop_dead_fred 3 years ago  |  last reply 3 years ago

Touch Sensitive counter project question

Hi everyone, Great to be part of this community. I am trying to make a touch sensitive counter, the sensor has to be as flat as possible, something like a thick cardboard, or I can put a flat sensor in between two sheets. It needs to handle about 10-20lbs of weight. It will go under fabric like carpet, so it cannot be super sensitive, clickable is fine. It will be connected to a very simple 1 or 2 digit counter. Any suggestions? PS: Eventually I'd like to upgrade this with a system that can instruct something else, for example 5 counters, display etc. Or be able to use bluetooth or wifi or arduino, and be able to count back. For example input 10 and it will count 1/10, 2/10, 3/10, etc..

Topic by tees_deney 3 years ago  |  last reply 3 years ago

A Good Multi-Tool

I am trying to find a nice multi-tool that include the following features and not too expensive (less $100). EDIT: I meant less than $100. Pliers Wire Cutter Saw File 3" Knife (non-serrated) Scissors Can Opener Bottle Opener 2-3 Flat Screwdrivers (Large, Medium, Small) Phillips Screwdriver I like the look of the SOG PowerLock S60 ($50) with a replaced blade ($8) (1/2 serrated to straight) because of the geared pliers, the replaceable/interchangeable parts, the 1/4" drive and all the tools I want. Can anyone recommend tools that would fit for me?

Topic by DELETED_bertwert 3 years ago  |  last reply 3 years ago

Link Error on download link gives xml FIle - Espresso Souffle

Hi Download pdf gives contents ox xml file Espresso Soufflé by MrSirLRD Vote! Featured Download  6 Steps   Share  Favorite  I Made it!  Collection Download PDF All Instructables are now available in PDF format for easy printing, sharing and offline viewing. PDF download times vary, so please be patient as it may take a few minutes to download depending on your connection speed. Click on the link below to download your PDF. If you are having trouble downloading the PDF, try right clicking your mouse and choosing 'Save Link As...' or Ctrl + click if you're using a Mac. Espresso-Soufflé-1.pdf

Topic by ChefJohn1955 3 years ago  |  last reply 3 years ago

Unable to create instructables- Redirected to RegisterNew

Dear all, Since a week i am not able to make ANY new instructables on ANY of my Machines. The new instructable button simply re-directs me to- https://www.instructables.com/account/gopro?newMember=true I tried clearing the cahce, Cookies and trying it on 3 PCs that I have. Same problem. Please help.

Topic by bhvm 3 years ago  |  last reply 3 years ago

Cell Phone Jammer

I have alot of Cordless phones with the handsets and i have the bases, i have answering machines , regular phones.  Old cell phones....Is there components in there that i can make a cell phone jammer with?   Im teaching myself electronics by taking things apart,lol  but i still have trouble figuring out what parts are what.    Any help?   thanks.   Ps, i would love to make one with a altoid tin if possible.

Topic by valmont325 7 years ago  |  last reply 3 years ago

WiFi Jammer

Alright, I have this friend of mine who is really into pranks, and loves messing with my computer and the computers of his college roommates, so I'm trying to come up with a way to jam his WiFi to get back at him.  I'm not planning on doing anything illegal with it, just trying to mess with him and get him back for all of his shenanigans. Haha To be a bit of help, I have heard/read on google that it is possible to jam a WiFi signal (which usually runs at 2.4 GHz) with a modified cordless phone, also running at 2.4 GHz. Any ideas? Thanks!

Topic by UberNoober 8 years ago  |  last reply 3 years ago

IR Jammer

Could some please show me how to build an IR jammer? I want one that broadcasts at all frequencies, as to not have to adjust it for each IR reciever. I would be most thankful.

Topic by James (pseudo-geek) 12 years ago  |  last reply 3 years ago

FREE Science Stuff!

Free vials and closure sample by filling out a simple form. Mine came in today ,cool glass and plastic vial assortment  best of all Free! http://info1.thermoscientific.com/forms/CMD_9mmVialClosures?ce=E.12CMD.CC113.G044670.04&gp;=WMI-Web%20MS%20Internal Just fill out the form and receive the Free Scientific bounty that awaits! Put in my request  10/31/12 received today 11/19/12.

Topic by Lucky7x7 6 years ago  |  last reply 3 years ago

Have a "bold" option in an Instructables title -Idea

Have a "bold" option in an Instructables title -Idea: It would be nice if I there was an option to have part of a title in "bold"

Topic by Yonatan24 3 years ago  |  last reply 3 years ago

Homemade Electric furnace current question

Good day viewers! I recently found out about the wonders of electric furnaces, cheap to run and no smoke. I went looking around for some designs, there are some nice i'bles about it and I got very exited since my neighbours already start nagging when I strike a match, an electric furnace would be the perfect solution. I decided to go with kanthal wire, its relatively cheap at a few bucks per meter, and it can handle temperatures up to  1300C. I plan to melt alluminium and maybe some brass so I should be fine with that. now to the questions part, I have an ATX PSU with a 12V 16A output (DC), I was wondering how many (centi)meters or inches for the americans under us, it could power (if I can power it it would eventually go up to full temp right?) I am a complete nitwit at these Ohms formulas and electric furnaces, at the moment I am abstaining from sleep to build this furnace and I am sure that others are as well. I hope some nice fellow diyers can help me with it. This could be a dumb questions, maybe I need a wall outlet (230V in my place) or maybe I need some rocket science. I don't know, do you? kind regards and a thank in advance from 2 young exploramenters that want to melt some metal without ruining our lungs. excuse us for spelling mistakes, this written by non-native speakers and with shaking hands,...

Topic by JStuyfzand 3 years ago  |  last reply 3 years ago

Making something instead of buying is waste of time?

While searching the Internet for someone that has made their own Hot Press for making WPC (wood plastic composite) boards, I stumbled upon a Tshirt forum.  A man had posted a topic about how to make his own Tshirt heat press for making Tshirt designs.  The other forum members all decided it was a waste of time.  He should not bother trying because it's complicated.  In the end he would spend way more, and he could buy a used or cheap heat press locally. Is that not the ultimate irony?  People who post in a forum about making Tshirts tell another member that do-it-yourself is a bad idea.  Like buying a heat press to make your own Tshirts is a much better idea.  Do they all think they will be the one with that great design to put on a Tshirt and corner the elusive $100Billion Tshirt market?  Or do they just like to make their own Tshirts instead of buying one pre made.

Topic by bsims1 3 years ago  |  last reply 3 years ago

Coanda effect in conjuction with Venturi effect !?

I am still working on my project to create relatively accurate model of a Repulsine. No, I am not one of those free energy nut balls, just curious in old tech ;) As part of my research I came across some statements in regards to lost pieces of the Repulsine. The last remaining model still exists in Austria but noone seems to have to clue what the missing parts looked like. I think the missing parts are a system of nozzles, diverters and a secondary hull - forming a similar system like the Coanda plane engine. There are lots of people still out there tinkering with Coanda lifting devices and trying to get them working. Is there anyone here doing it ??? Would like to exchange some knowledge, tipps, designs and so on. Short term goal is to make working Coand engine with enough thrust / lift to be used at a later stage for a working Coanda plane model. Long term goal to modify it all to incorporate into the Repulsine.

Topic by Downunder35m 3 years ago  |  last reply 3 years ago

one way air valves (like on a football,basketball etc)

Looking for valves see photo (ok don't uploader not working) Well a valve that you stick an inflator needle into like on a soccer ball, basket ball etc. Need 12-50 or so. Anyone have a source? I've searched but no luck, it might be I just haven't phrased it right but... TIA Danneauxs

Topic by danneauxs 6 years ago  |  last reply 3 years ago

vacuum pump wanted

Hoping someone would have a vacuum pump (manual or electric) they wouldn't mind giving me, hoping to make a vacuum cannon but missing a quite essential part ha ha

Topic by ToggleSwitch 3 years ago  |  last reply 3 years ago

Outdoors Stuff

I would like to see some outdoors stuff that you guys have created. I have created a few things but am still fairly new and would like some ideas and just cool stuff to see. Thanks. 

Topic by Street-Wise Irish 3 years ago  |  last reply 3 years ago

Arduino high voltage capacitor charge indicator?

I made a 330v gauss gun and wanted a way how to know when capacitors charge, at first i took an led and resistor, that worked but is kinda boring. I want to use arduino and lcd to display percentage which should look more cooler. How should I measure the capacitor bank voltage with arduino? Should I use voltage divider? or there is a better way?

Topic by spudziuvelis 3 years ago  |  last reply 3 years ago

PEMF device that mimics earth's magnetic field?

I am very interested in making a pulsed electric magnetic field device that mimics the Earth's own magnetic field. It could be as simple as one single coil. That coil would have to have a magnetic field that measures in the 30 to 90 microTesla range, and it would have to be able to be pulsed in the 5 to 45 Hz frequency range, since that is roughly the strength and frequency of the Earth's own magnetic field Any ideas on how to make that happen? I am a reasonably intelligent person, but I am not necessarily technically gifted. So for somebody this might be uber simple, I don't know, but I am just not sure how to go about doing this. What do you think?

Topic by lapis lazuli 8 years ago  |  last reply 3 years ago

Instructables API Access

Hello, I am a newbie windows phone app developer, recently I am working on Instructables reader app for windows phone, I am looking for complex API to get access to user login, comment, post, etc. Is it possible for me to get access to those services? here is the link to the app what I'm working on : http://windowsphone.com/s?appid=875ba3ef-aadc-424c-b087-a281d447645e Thank you, Ganesh

Topic by become90 3 years ago

Combine two usb solar panels for higher wattage output

So, just thinking about this.  I have an anker 14w foldable solar panel.  I like it, but it seems to not quite have the wattage output that I would prefer.  What if I were to make cable that would join these two usb output sources into one.  Same voltage of course, just higher wattage potential. Again, just an idea.  Thoughts?

Topic by n5yzv 3 years ago  |  last reply 3 years ago

208/240 transformer question

After having several (like 4) thermostats fail in a 6-year period, it finally dawned on me to check the voltage from the transformer and I found it to be a bit over 28 volts. My condo building has 208V service. The transformer in my air handler is a 208/240V one and was wired to the 208V terminal. I removed the wire from the 208V terminal and connected it to the 240V terminal and then found the voltage to be 24.2V. So I have possibly solved the problem of the thermostats failing but my question is, will this cause any damage to the primary (or secondary) of the transformer? Thanks in advance!

Topic by kvander51 3 years ago  |  last reply 3 years ago

Do game stores sell PS VITA games cheap?

Hey. So i decided to get a PS VITA recently. But with all the good games' prices sky high im worried that i would get a ps vita and not be able to play any good games. I dont really want to use remote play (probarbly because i dont have a ps), and i also dont want to buy games for 120 TL (turkish currency, expensive) My cousin has a regular PSP and he gets games for 15 a peice. Is there such thing for PS VITA?? Thanks in advance.

Topic by Doc Penguin 3 years ago

Instructables Website

Now this may be a stupid question, but I was wondering how the animated portion of the instructables.com homepage was made.  It is very eye catching and I was just wondering how it was done.

Topic by JeffreyD7 4 years ago  |  last reply 3 years ago

Motor and base design for optical toys

Hello everybody! I'm in the process of building a reiteration of a series of optical toys (like this one, or these) with motor, stroboscopes and little music system. The thing is their discs measure about 1 m (like 3,2 feets) and one of them (praxinoscope) is a heavy one due to the mirrors it possess (see photo [it isn't it's actual state]) so I created a metal base for it with a tube, three metal angles as legs and washing machine 115v ~60hz 70W 250VAC single phase motor soldered on (with capacitor), so the disc sits on top of the motor, and the thing is that after an hour of so of being tested on continuous duty it stopped and started to smell like burnt. What could the problem be? Could it be a design problem since the motor has all that weight on top? Should I have used gears and pulleys? How can I make it last longer without it being to complex?  If someone can help or has some ideas I'd appreciate it , thanks in advance! Benkos M. G.

Topic by BenkosM 3 years ago  |  last reply 3 years ago

Bokeh on mobile

I have seen how to make heart shape bokeh on instructables, is there any way to do such from phone camera. Any help is appreciated .

Topic by geekrex 3 years ago

1/8W 39ohms resistors

How many 0.6W 39ohms resistors will I need to fulfil a 1/8W 39ohms resistors place?

Topic by scribble73 3 years ago  |  last reply 3 years ago

My project X My Car = Lumber

Not sure where to post this but figured I'd at least got the right website. I drive a Scion xB (aka the angry toaster) so I know what lumber I can carry. I'm looking for a calculator that I can tell the number of pieces, their dimensions and what the max of my car is capable of and receive the number of different pieces of lumber I can should buy to complete the project. Does such a thing exist? The math and algorithm is relatively simple. I'm just to drunk to work it out at present and it'd be a site well worth having in my bookmarks. If you know of a site this is a quick post, if not what would you like to see in such a site? Example: Building drawers for my small work space (13' x 6')  the structure I've come up with to support the drawers requires a frame of  2x4's: 3x sides: 2x56" 3x7" cross members: 4x 25" 2x 54.5 How many 2x4's should I buy if the max length of 2x4 I can fit is 8'? (I love my scion xB) 

Topic by MichaelD158 3 years ago  |  last reply 3 years ago

if u and your friends were on a camping trip and u saw this comming your way what would u do.....

If this was coming toward u what would u do. 

Topic by Fin the human 3 years ago  |  last reply 3 years ago

can i adapt recovered laptop camera to a usb?

I have a webcam recovered from broken laptop. i want to  use it with another computer through a usb port. i'm hoping all i need to do is properly attach wire harness to usb cord, download drivers to comp, and run. i'm sure it can't be that easy. the camera: Rose_2G/ CN0316-S30C-0V06-1/ VA-R02.02.02 the overall project if i can get past this step is to use it for a 'pinhole' door camera to be waterproofed and put behind the siding.

Topic by jbrown79 6 years ago  |  last reply 3 years ago

Servo Controlled door

Hey I'm making an arduino controlled door. Will a servo provide enough torque to open and close a bedroom door?

Topic by fruitkid101 9 years ago  |  last reply 3 years ago

Repair of a bi-pin light base

I'm trying to repair my outdoor post light.  The bi-pin bases have rusted.  I purchased new bases and went to rewire the light, but there are some difficulties in doing this.  It would be incredibly easy if I was able to remove the wires from the new bases, connect them to the power wires, then reattach the base.  The pin slots don't appear readily removable, however, and the piece is put together with rivets, so taking it apart and reassembling it would be...  not so easy. I was just wondering if anyone has attempted this and has any tips. Thanks!

Topic by xepherys 3 years ago  |  last reply 3 years ago

Tablet as a field monitor?

Have anyone come across a tablet that would have a HDMI input? Or a hack to make one? I mean there are lots of 10" monitors but none of them have a screen as good as a cheap tablet.

Topic by DainiusG 3 years ago  |  last reply 3 years ago

LED blink based on proximity

Hi, I want a LED to start blinking if it is outside some area. Kind of a prisoner electronic bracelet :) What would be a cheap solution for this? Could I do this with 2 proximity sensors? Thank you.

Topic by PedroP46 3 years ago  |  last reply 3 years ago

ETSY pictures pulled from instructables.

Has anyone else noticed their pictures being pulled off instructables and posted on ETSY? I posted this in Jan of 2014. https://www.instructables.com/id/Planter-Box-from-Pallets/ I saw the following on ETSY today. https://www.etsy.com/listing/246769791/pallet-planter-box-flower-box-rustic?ref=shop_home_active_3 https://www.etsy.com/listing/246438036/custom-rustic-planter-set-of-two?ga_order=most_relevant&ga;_search_type=all&ga;_view_type=gallery&ga;_search_query=pallet&ref;=sr_gallery_24 I don't really mind but I think it's interesting that they wouldn't build and take their own pictures.  

Topic by mtairymd 3 years ago  |  last reply 3 years ago

Image library pulling up differnent users images.

Hello,  I am writing an ible currently on my windows 7 laptop.  I am using Firefox browser, i do not know what version, but i do believe it is the current one. I have loaded all the images i plan to use for the ible into my image library.  There are a lot loaded for just this ible, over 150.  While working it usually will pull the correct image library, mine.  But after a while it will load someone else's library.  Every time it does this it comes up with a different user's library.  Sorry i do not have a photo of it happening.  This is URL the last time it occurred https://www.instructables.com/editInstructable/edit/ETXW6TDIE08O7LZ/step/10

Topic by tjdux 3 years ago  |  last reply 3 years ago

The FootHold Snare

One day, you might find yourself lost in the woods while camping! One day, the stock market will crash and are YOU ready to survive? Traps and Snares are one of the most important things while surviving. Blake Alma, the founder of The Art of the Outdoorsman once said, "A trap is as someone else hunting for you when you can't, it is truly your best hunting buddy!" This is so true. Unlike fishing poles and firearms, traps and snares work when you are sleeping! Hence, learning how to make a simple snare indeed helpful and lifesaving for it is an art of an outdoorsman! Let's get started on this foothold snare. You need: A shovel, 550 lb. test paracord, and bait. Note: There are laws regarding trapping. Step 1: Digging your Hole Picture of Digging your Hole I hope you got a good shovel and back! You will need to dig a hole 2 to 3 feet deep. Yes, I know it is a true pain, but it can save your life or get you free food! Diameter of your Hole: - Raccoon/Opossum/Mink/Groundhog/Large Rabbit (6 inches) - Coyote/Fox/Bobcat (8 inches) - Animals under 550 pounds/Deer/Small Elk/Very Small Bear/ect. (12 to 18 inches) Step 2: Camouflaging After digging your hole, add leaves, thin sticks, tree bark, or grass over the hole. Do not put to much "camouflage" over the hole or else you may prevent the animal from falling down in the hole. Step 3: The Snare Wrap the paracord around a stick or you finger making a small loop. Tie the small loop, and pull your finger out. Make sure the knot is very strong. Put the other end of the paracord through the small loop. You should then have a giant loop, known as the snare itself. Make the loop's (snare) diameter slightly smaller than your hole's diameter. Tie the snare extra line around a tree, sapling, or log near by. Make sure it holds. Place the snare itself over the hole, on top of the "camouflage". Step 4: The Path of the Least Resistance Sense the animal has plenty of ground to step on, it might be hard to get him in your hole. Hence you need to create a the path of the least resistance. You need to make him limited to where the animal will step. Make a path to your foothold snare using leaves, sticks, logs, and grass. Make it easy for the animal to walk through. Like us we want to walk on a nice smooth sidewalk, not on a beaten trail. They want to walk on a path with the least resistance, they don't want step on pointy sticks. They want to step were the feel most comfortable. That is way you need to make a path to your snare, so it will step into your snare! Step 5: Baiting your FootHold Snare Picture of Baiting your FootHold Snare Place your bait two to three feet ahead of your foothold snare. Raccoon and mink like fish. Opossum like processed meat like hot dogs. Groundhogs like sweet apples. Coyote and fox like meat. Deer like deer feed (duh!). How it works: The animal will smell the bait and take your path of the least resistance. While walking up to your bait on the path, he will step his foot in the hole. It will pull his foot out of the hole and continue walking. (When we pulls his foot out the snare comes out with him.) Then the snare tightens around his foot, making him trapped. Instructable page: https://www.instructables.com/id/The-Foothold-Snare/ 

Topic by The Art of an Outdoorsman 3 years ago  |  last reply 3 years ago

Why is the "Featured" Filter Automatically on when I Explore Instructables?

I really don't like it when I'm just looking at instructables and I realize I'm not seeing all of them because the "Featured" filter is on.  For example, I click on the "Explore" button, then I click "Technology", then, I see that the only types of instructables I've been seeing are featured.

Topic by nancyjohns 3 years ago

Bolt Action Rotary Magazine Gun (updated with internals)

Alright, it's been a while, forgive me. I work in spurts of an hour or two every few nights. It's not quite finished, but it's at a point I'm comfortable showing. I'm also working with BM, so hopefully he can make some improvements on it before it's posted. This gun is the combination of two different goals I've had. First off, I always wanted to make a bolt action. I came up with the idea for the modern bolt action long ago but was beaten to the punch. So since then, as others have made their own bolt actions, I still struggled to make one up to my own standards. I wanted something sleek and compact with a removable magazine. Second, I went off on a little tangent while building, which then turned into its own project: a rotary magazine. While it's been done before, I don't know if it was ever successfully used in a gun. It's more about the novelty than the practicality, but what it does do is give you more storage in a compact design and act as a decent foregrip. I wanted to make it a decently usable. At first I thought of making just some cruddy gun to show off the concept as a usable magazine, but then I decided I may as well go the full nine yards and make it perform well. So this is what I ended up with. I don't have a real name for it yet, but I've considered calling it the Barackuda, a portmanteau of Barack (Obama) and barracuda because...well why not. I wanted to keep it as compact as possible, so I used a barrel similar to my Oodassault 3 series and a stock connection similar to my PDR. The stock is a bit long compared to the body of the gun, so it may look awkward, but I wanted to give at least enough room to aim the gun without sticking the pin into your eye. The blue connectors in the stock stop the bolt right after the trigger engages. The bolt is somewhat typical. I like how it sits flush with the back of the gun rather than looking like an extension on the back of it. The handle isn't amazing, just a variation of my tried and true handle I've come to like. The trigger also isn't amazing, and in hindsight, I want to block a bit further back still, but it works for the limited space I've got. The magazine on the other hand is magical. Go look at my last topic for details on its operation. This version is for yellow rods. I've added a rotary lock and band. When the middle rod is pushed toward the trigger (like in the pic), it's locked. It can securely contain 10 usable yellow rods while locked, though it can load up to 12, the top 2 can fall out. You insert it into the gun by pressing the top two red rods at an angle into gaps in the grey connectors at the front, then rotate the magazine, slightly pushing in, until you get the white rod in the gaps of the yellow connector. Finally, you push in the middle red rod by the trigger all the way forward to unlock the magazine. Edit (9/10/2015): Made my adjustments and now I'm mostly satisfied with the weapon. Here's the video.

Topic by TheDunkis 3 years ago  |  last reply 3 years ago

ATX PSUI shorting out

​Hi everyone, I hope I did this well, first time on this site, this is a question. I want to make my own soldering iron/heating element, I know I can buy them but it is a project of mine and I just want to know how it works and make it. I used to power a copper wire with a 5V ATX PSU at 16Amps, the psu shorted out and stopped. I read somewhere that you can prevent the PSU from shorting out when there is enough resistance on the wire so the current is not too high for the PSU. (Total nitwit on electronics btw) I was wondering if this is true, and how can I build a succesful soldering iron with a PSU, what transistor or what modifications to make. Also, would a longer wire/rod produce more heat than a shorter? red hot would be nice. Thanks in advance!

Topic by JStuyfzand 3 years ago  |  last reply 3 years ago


Is anyone willing to giveaway a gameboy color

Topic by minecraftpotato 3 years ago  |  last reply 3 years ago

Help with SMD marking!

Hello, I recently had a tablet to repair and this SMD IC was damaged: "C03AE". I can't figure out exactly what it is. Results I got range from LDO to Power switch to overcurrent protection. Does anyone know or have the datasheet for the latter? Its SOT-25 package. The tablet works fine without the IC (can charge, work on wall adapter only, etc). Here are some voltage readings WRT to ground (pin 2) and battery at 36% charge (pin numbering as per picture) Case 1: display ON, charger not connected: Pin 1, 3 and 4: 0.00V Pin 5: 3.64V Case 2: display OFF, charger not connected Same as case 1 Case 3: display ON, charger connected Pin 1: 4.74V Pin 3 and 4: 0.00V Pin 5: 4.64V Case 4: display OFF, charger connected Pin 1: 5.11V Pin 3 and 4: 0.00V Pin 5: 4.74V Any help is greatly appreciated. Best Regards, Nawaz

Topic by Nawaz 3 years ago  |  last reply 3 years ago

Variable USB Power Supply (5V 2A)

I was looking to either build, buy, put together (kit) a Variable USB Power Supply similar to the one that I saw on the EEVBlog (https://www.youtube.com/watch?v=QxWRT4U_I9o). I really liked the compact design of his version, but he never finished it, so I can't buy that kit ;-( Is there a simple way to put together something that is protected (so I don't kill the USB socket I get power from) and has a Variable Volt and Amp adjustments knobs/buttons. I've looked at getting a full size Bench Power Supply, but would love to just have one so that I can power from my laptop or any of my million Micro USB power adapters (5v 500ma through 5v 3A supplies). My first project is something I need to eventually run off of AA batteries, but I didn't wanna keep on re-charging the batteries while I test my circuit design. Would rather have a constant source of 1.25v-1.5v power during the prototype phase. I'm just now getting into Electronics, so please take it easy on my poor little brain. Hopefully this hasn't already been asked, didn't find anything in my quick search through the forums.

Topic by drofnasnhoj 3 years ago  |  last reply 3 years ago

Bug in webpage

Does reporting bugs in the site still qualify for Pro membership? I found a bug in the site that I can't believe hasn't been reported or dealt with yet. Requirements: User must be logged in. Reproducible: Always Bug: If you click on "You" a dropdown box appears as shown in the below image. The Settings hyperlink points to /you when it should point to /you/settings The other hyperlinks appear to be correct. I want my bug bounty :D

Topic by gregoryfenton 3 years ago  |  last reply 3 years ago