I've been getting into crochet recently as a way to pass the slow hours of the night shift. This is my latest work in progress: a circular rag rug crocheted from a ball of bedsheet strips. It's a lot easier than I thought it would be. I think I'll try making a rag basket next.
Do any of you other /diy/kes crochet, knit, sew, or practice other fabric crafts? Show off your creations in this thread, ask other anons how they made their stuff, etc. Anything goes.
Im trying to make a home made electrolysis rig that I can use to split water into H2 and O2, and then direct the two gases into separate balloons for storage. The whole rig will be a closed system, thus allowing it to pressurize itself enough to inflate the balloons. I already have a pretty good idea of the design and how Im going to build it, with one exception. I cannot for the life of me figure out what to use for the electrodes. From past experience, I have determined that it must be both conductive (obviously) and also completely non-reactive. If copper, aluminum, steel,... Comment too long. Click here to view the full text.
>>895268 >"The whole rig will be a closed system, thus allowing it to pressurize itself enough to inflate the balloons." >enclose system in air-tight container >begin electrolysis >gasses fill balloon to pre-flex apex >gasses then begin to fall back into the container due to lack of force to fill the balloon Good luck, OP.
When dealing with breadboards it is of utmost importance to distance all similar things equally. Trimming component legs is only acceptable if all components are trimmed equally. When laying out passive components it is of utmost importance to insert components such that their respective values all face one direction. Resistor color bands must always be aligned. For functionally similar connections, wires of exactly the same color must always be used. And so on...
If you stray from these simple rules, know this: somewhere, in a small, but highly organized room there is an autist screaming of pain.
So I guess this is a thread for things that just make you feel warm inside. Like super neatly organized cabling etc.
TELL US OF YOUR PROJECTS! TELL US OF YOUR EXPLOITS!
in other news I have a wired programming question.
I have a rotary encoder that'll be reading tens of thousands of revolutions at a time and a device which will send signals at irregular intervals. I need to record and export the number of revolutions(to the single or half revolution if at all possible) between signals(and between startup and the first signal) onto an Excel spreadsheet.
does anyone know of a good Arduino to Excel interpretation and recording software?
Do you need the spreadsheet to be filled out in real-time? If not, Excel is capable of reading text-based files just fine. I think if you give the file a .csv extension it might just work automagically.
Does the Arduino have a counter circuit? You might need to buy one to work with the encoder.
Hi, this is my new project. A mini mincer for guys with autism. it's fantastic. can be completely dismantled and re assembled in seconds. That means it's portable everywhere. You can use it at the restaurant for smashing bread. At breakfast for smashing cornflakes. Or imagine it at the park with hundreds of insects... A drug for a person with autism.
I'm going to do a kickstarter for this. what do you think?
>>891543 I am trying to compile a shopping cart of components for the matchless metal detector found here: http://www.geotech1.com/pages/metdet/projects/matchless/matchless150c.pdf
Can someone look over it and let me know if it looks good? I wasn't too sure about the following:
14 pin DIL IC socket (I could only find exact on ebay for ~$17) ICM7556IPD (Ebay) BC549C(Again, could only find on ebay) .01uf ceramic disc (listed as 50v, will this work?) 500ohm pot in place of 470ohm
Couldn't... Comment too long. Click here to view the full text.
SO, I happen to have a JET J-720R. >http://www.jettools.com/us/en/p/j-720r-3-arm-radial-drill-press-230-460v/320033
I'm an idiot though so I have no idea what sort of vice will fit the damn thing. it sits very sexily and glares at me for using 2"X4"s and clamps in lieu of a proper vice. what reasonably priced vice can I get for it?
also MACHINING GENERAL, WHAT ARE YOU GUYS MAKING? >LET THE CHIPS FLY!
Weller irons are already less than $20, how cheap are you looking to go?
My understanding is that cheaper soldering irons sacrifice temperature accuracy. If you're not working on anything too delicate (thin PCBs or tightly packed sensitive components) then any old soldering iron should do the job.
But I don't solder much. Take that with a grain of salt.
Hi /DIY/. I was wondering if you can offer a little advice on my costume. Basically I'm doing a classic robot, complete with cardboard boxes and that flexible aluminum tubing (basically like pic related). I'm building a couple of things to make it a more realistic robot, eg flashing LEDs, robot voice box, etc. I want to include a couple of motorized functions, which is where I need your help. I already have an arduino uno and two motor sheilds.
First motorized function is to make the head spin all the way around. Keep in mind this is basically just one cardboard... Comment too long. Click here to view the full text.
>>889798 IMO easiest way to achieve the spinning head would be to mount the motor on top of a hat or helmet, and have the robot head be attached to the motor and not attached anywhere else on the costume.
>>889800 That's a pretty good idea. I can mount the electronics, including the motor, on top of a helmet. How much motor, and how much battery would you think is required? I was initially thinking of wiring 2 big 6 volt lantern batteries to make 12 volts that would last all night. I was thinking mount the batteries in the chest and run a pair of wires up the back of the neck to the helmet. I was thinking of a motor like http://www.digikey.com/product-detail/en/324/1528-1062-ND/5022791
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