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spirograph project help

K

kernelpanic

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For the pager vibrator motors, I've found that 100 ohms per volt of battery supply works well. It's just enough to bring the motor to a halt. (So for 1.5V I use 150 ohms, for 3v 300 ohms. Use less and the motor won't stop, more and the adjustment is only at 1 end of the pot.)

hope this helps,
kernelpanic
 





L

Liberty1992

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Oct 12, 2008
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laserlover said:
i know little to nothing about which motors would work with which potentiometers and which batteries to use, so, here are a few links that should help you tell me which ones to get. if someone could post links to the three that would all work together that would be absolutely fantastic!

potentiometers:

http://www.radioshack.com/search/index.jsp?kwCatId=&kw=potentiometers&origkw=potentiometers&sr=1
any and all help is very much appreciated!

-laser lover
Click to expand...
potentiometer wise i actually found a DIY on indestructible.com that had 1 very true statement, you can use the volume control from any electronic with a volume control as a potentiometer
 
rog8811

rog8811

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potentiometer wise i actually found a DIY on indestructible.com that had 1 very true statement, you can use the volume control from any electronic with a volume control as a potentiometer
Click to expand...

I used a volume control on my first spiro, as they are usually logarithmic any speed change is over a very small part of the pot, as they soon get into the megohm range, making it hard to set slow patterns.
Most other pots are linear which makes them easier to set.

Regards rog8811
 
L

Liberty1992

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Oct 12, 2008
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rog8811 said:
potentiometer wise i actually found a DIY on indestructible.com that had 1 very true statement, you can use the volume control from any electronic with a volume control as a potentiometer
Click to expand...

I used a volume control on my first spiro, as they are usually logarithmic any speed change is over a very small part of the pot, as they soon get into the megohm range, making it hard to set slow patterns.
Most other pots are linear which makes them easier to set.

Regards rog8811
Click to expand...
wow i didn't know that, well now i do, thanks for informing me, I'll definitely use a real potentiometer in my first spirograph
 
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