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thanks for the vids! I think these are going to look even cooler than I was expecting. Speed actually looks like it might be fine...and I was also thinking about running a 3.3V wire to it, rather than buying a resistor. Any idea where I can find that motor? I did a little bit of poking around yesterday and didn't turn up anything, but I'll keep looking.
I tried a quick search (I'm at work) and can't seem to find one for sale anywhere. I'll look more later on tonight for you. I'll also check the terminals with my multimeter and see what voltage is actually going to the motor with that resistor :up:
ok I checked the voltage @ the pins and it fluctuates between 3.8 and 4.0v with a steady 5.0v input, so I don't know if 3.3v would be enough to spin the motor. :up:
good to know, I'll plan on using the 5V input then. If I can find the motor anywhere. Seems weird, but it looks like nobody sells that little thing, so I may be back to tracking down that 10rpm motor I found awhile ago (advantage there is that it runs on 12V so I can just wire it into existing wiring instead of running new wires) and somehow attaching one of the Lego axles onto or in place of the shaft the motor comes with.
just got an email that my lego parts are on the way. I was able to find the motors for sale at www.bricklink.com (categorized under "parts for sale" then electric motor) although they're kinda pricey at about $20 per. I was hoping to get 3 of them, but I'm not spending $60 on motors...maybe what I'll do is get the cheapie DC motors, attach a disc to the shaft, glue one of the many extra gear wheels I ordered to the disc, and attach a lego shaft into the middle of the gear wheel...that could work, and then i'd hopefully only spend $10 or so on the motors. hopefully will have more pics this weekend...
I got to thinking - anyone have any ideas/suggestions as to where I could go to get some cheap computer parts, I'm thinking small chips, capacitors, etc? Preferably non-functional. My line of thought is that since my crawler is a computer case, it would be appropriate if some of the junk piles inside were bits of computer circuitry and not just small model pieces. Obviously these bits don't need to be functional, and really what I'd want ideally would be to pay a low price for a boxful of junk. I know Weird Stuff Warehouse in Sunnvale, CA sells that kind of stuff but I live 400 miles away, and I don't know that this is the kind of thing easily ordered online...
Anyway, as for specific parts, I'm thinking pieces of old power supplies, BIOS chips, random capacitors, etc. nothing as large as PCBs though, just the odds and ends typically soldered onto PCBs. Some of these things could make for interesting internal structural details as well.
What would be perfect would be to raid a pile of to-be-recycled stuff and just take what I want.
http://www.goldmine-elec-products.co...p?number=G2200
You get lots of stuff the size you're looking for in the small box...at least I did in mine. They are 'surprise' boxes, after all. :P
Alternately, if you have a computer recycling places nearby, you could ask them if you could have some time with their piles. It'll be a pain to get any decent amount of stuff off the PCBs though.
awesome! that looks like exactly what I was after. Do you recall offhand the dimensions of the box? I just want to get an idea how much stuff would be in there. I doubt I'd use it all, but on the other hand when I detailed the outside of the case I used a lot more model pieces than I initially expected.
What about paper/wax capacitors? If you want any, I'll shoot some your way for free.
They look somewhat like the ones in the center of that pic, but some of them have wax that started to melt and drip off. When I pull them out of a radio, I usually just toss them all.
IDK what the exact dimensions were, but I still have the box. When I get home tonight I'll measure it. For an idea of how much stuff to expect, the portion of this pile below the thinning is the small box. The part above the thinning is the 'super' box ($8, iirc).Quote:
Originally Posted by artoodeeto
humina humina humina humina humina-so many capacitors- humina humina
