The Real Elliot
- Date Joined:Aug 12, 2006
- Instructables:7
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- Comments:188
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» Good good!If you've got 23% HCl, it should work fine either as-is, or with a 2:3 acid/H…
» How do you mean "better"? Is there something specific I can write that'd help?
» You're suggesting trying to re-plate the board with the copper you've already etched aw…
» Very interesting. I wonder if some people are having trouble b/c they're using 20% ins…
» So the only trick with (traditional, analog) servos is that they need a 1.5-2.5ms pulse…
» Should be totally fine with silicone, glass, and plastics. Post a pic if you've got on…
» Awesome. It's a mashup of two of my favorite projects, and the result is the most mini…
» UV? Is your preparation maybe leaving something on the copper? Did you clean the copper…
» Wow! That's horrible / interesting, and entirely unintentional. I guess I shouldn't be…
» The red-pink color is what the oxidizing copper looks like -- that's a good sign -- but…
» How do you mean "better"? Is there something specific I can write that'd help?
» You're suggesting trying to re-plate the board with the copper you've already etched aw…
» Very interesting. I wonder if some people are having trouble b/c they're using 20% ins…
» So the only trick with (traditional, analog) servos is that they need a 1.5-2.5ms pulse…
» Should be totally fine with silicone, glass, and plastics. Post a pic if you've got on…
» Awesome. It's a mashup of two of my favorite projects, and the result is the most mini…
» UV? Is your preparation maybe leaving something on the copper? Did you clean the copper…
» Wow! That's horrible / interesting, and entirely unintentional. I guess I shouldn't be…
» The red-pink color is what the oxidizing copper looks like -- that's a good sign -- but…
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what in the world is it with so many on instructables using the word "ghetto"? none of you come from the ghetto, why not just use suburban or trailer park or chinatown? use your own culture if you want to describe something as cheap, dirty, tacky or nasty.
Feb 15, 2009. 8:51 PMkasman
says:
hi elliot, i interested your a servo based 4 legged walker project, can u give me the real schematic circuit please. regard, kasman
Sep 16, 2007. 10:02 AMThe Real Elliot (author)
says:
Motors: 2 x $10 = $20.
Mega8: $3.50 at Solarbotics, $3.66 at Digikey, $4.93 at Sparkfun
Chunk of 3mm Sintra: $0.50? ($3 / 8"x12" sheet from Solarbotics.)
Thick copper wire: $0.50? (bought from surplus store years ago)
= $25 in round numbers.
(As with most robot projects) the big expense is the motors. If you've got any source of cheap geared motors, use 'em. Servos aren't necessary, but I wanted to learn how to run them. If you get bored of this bot and want to re-use them, they un-bolt easily.
The Mega8 was overkill b/c I never ended up adding the complex sensor system I was envisioning. You could get away with anything as small as a Tiny13, probably.
Sintra is great, but any kind of stiff frame material should be fine -- scrap PCB fibreglass board, foam-core, etc.
A classic for the legs is coat-hanger wire.
Mega8: $3.50 at Solarbotics, $3.66 at Digikey, $4.93 at Sparkfun
Chunk of 3mm Sintra: $0.50? ($3 / 8"x12" sheet from Solarbotics.)
Thick copper wire: $0.50? (bought from surplus store years ago)
= $25 in round numbers.
(As with most robot projects) the big expense is the motors. If you've got any source of cheap geared motors, use 'em. Servos aren't necessary, but I wanted to learn how to run them. If you get bored of this bot and want to re-use them, they un-bolt easily.
The Mega8 was overkill b/c I never ended up adding the complex sensor system I was envisioning. You could get away with anything as small as a Tiny13, probably.
Sintra is great, but any kind of stiff frame material should be fine -- scrap PCB fibreglass board, foam-core, etc.
A classic for the legs is coat-hanger wire.
Awesome project! Thanks for sharing. Welcome to Instructables. Let me know if you have questions or if there's anything else I can do.
Nov 15, 2006. 10:14 PMThe Real Elliot (author)
says:
Thanks for the welcome, and thanks for Instructables! I figured I've taken so much from here already, it was time to give back a couple at least. Elliot.
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