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Anonymous
3d printers and my rock hard dick 2017-08-22 02:59:41 Post No. 1231586
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3d printers and my rock hard dick 2017-08-22 02:59:41 Post No. 1231586
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Hey folks. Little bit of a story. I need some help and discussion on 3d printers. I received in the mail a nickel iron battery. A single 10 AH cell. Going to do a tear down, take pics etc for a yahoo builder group. I want to build them at home. I've ran into a few design hurdles. The chemistry is easy enough to understand. The mechanics of the cell can be a problem. Mostly interested in making clear corrosive resistant plastic battery jars, lids etc and if possible, fine steel plate. 1/32 of an inch plate. I need ultra fine holes and lots of them but a drill that fine would wear out real quick. Is that possible with current printers? I see some under 200 dollars and yes I know those are cheap junk and they make small parts. The more I research this the more it looks like something that would be fun to do and maybe might make a tight buck or two and work from home. Thoughts?
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A bump and bedtime. Also looking into laser cutting/drilling.
I found a company that will sell me the battery cases and jars etc but I was just wandering if it was possible to DIY plastic at home. Didn't see much that could handle polypropylene but i think ABS is very resistant to strong bases like the potassium hydroxide int he electrolyte.
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Bump?
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>>1231586
Go to the 3dpg thread. Also, shapeways offers nylon which should be chemically resistant but Idk for your purposes
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>>1231586
>fine steel plate
>I need ultra fine holes and lots of them
Steel is sold as perforated sheets in a wide variety of open area percentages.
McMaster-carr has it down to 0.024" thick at 28% open.
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You might be able to etch the holes using a chemical solvent, but I'm sure anything that would melt steel will also melt any resistant film you apply to the steel.
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>>1231988
I'll look into it and that size is close to what I need. I guess thickness isn't super important. The nickel iron battery I tore apart had metal sheet that was .15 mm thick. Hole size is. They used holes the size of a needle. Prices are a bit steep. 10 AH a cell requires roughly 40 sq inches of sheet. 25 bucks would get me 576 sq inches. I would be able to make a 15 AH 12 volt cell with that. mcmaster car usually is expensive. Part of the reason I want to make it. I still need to nickel plate it on top of that.
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you need sintered metal
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>>1232097
Doesn't work very well with the nickel hydroxide. Makes "a hot mess" according to people who tried.
Pic is a chinese cell.
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>>1231988
Honestly if I could figure out how powerful of a laser, I would go with that over mcmaster car. Huge cost savings plus I get a tool.
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