My DIY Spirograph

[bobobob121]

hey i gotta question...i accidentally bought a 5k ohm potentiometer instead of a 500k one...whats the main difference?

 

[mikeeey]

haha thanks rog. yeah i do understand the reversing switch, I just happened to forget to add the rest, I will update that now!  
no need to think of any other ways to explain it, i understand now! ;D

ok i updated the picture now, I dont think I left anything out.

 

[rog8811]

Good luck with the build, post lots of pictures

hey i gotta question...i accidentally bought a 5k ohm potentiometer instead of a 500k one...whats the main difference?

Your slow speed may not be as slow....although the motors I use only need around 1k to get a good range of speeds.

Regards rog8811

 

[bobobob121]

alright thanks man, and i got another question; Will a reverse switch work on a pcu fan?

 

[FireMyLaser]

No.

 

[bobobob121]

alright, then thats no good. I bought one for no reason because all i have is cpu fans here. And does anyone know what convex double sided mirrors will do when used in the spirograph?

 

[mikeeey]

No.

really?? in that case i will use a motor, and not a fan. at a nearby store they hav motors with mounts for $3.50.

 

[bobobob121]

here's some pics of the mirror i was planning on using. The only thing im worried about is which side to use because it is a convex mirror "like a pair of glasses"

 

[bobobob121]

2...

 

[bobobob121]

3...

 

[FireMyLaser]

Yes, normal 3-12V hobby motors are great.

bobobob121: You'll get a bad divergence no matter what side, so use flat, preferably front surface mirrors. Like harddrives or something.

 

[bobobob121]

well if i have three mirrors.. one with one side of the mirror facing out and then the next fan having the other side of the mirror facing out? so like this "(" and then this ")"


and would this motor work? http://www.radioshack.com/product/i...=hobby+motor&kw=hobby+motor&parentPage=search

 

[FireMyLaser]

Meh. Experiment then.
I don't think it's gonna turn out great tho.

The motor looks lawfully big, maybe a little slow too. But it should work.

 

[bobobob121]

well i can only really use radio shack..do you know of any motors they sell that would fit these specs?

 

[FireMyLaser]

Something like this:
http://www.radioshack.com/product/i...&sr=1&origkw=motor&kw=motor&parentPage=search

Or this:

You'll find them in CD/DVD drives, it doesn't need to be a burner.

 

[bobobob121]

oo, i have an old cd player from my comp i will have to inspect..how many volts do they usually run on? or does it say it on them?