Kevlar
0
- Joined
- Apr 26, 2010
- Messages
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Well I finally finished my 4 motor laser spyrograph build. Here are some pics:
I used 4 DC motors 1.5V-3.0V, 4x25 Ohm rheostat pots, 4xDPDT switches (3A rated), and a 50mW green module (2.9V-3.0V)
So I thought I could use this DC adapter to power it:
It provides 1A and I can select how much voltage.
Now the problem. It works with 1 and 2 motors fairly well but powering up a 3rd or 4th motor bogs it right down. It goes dim and even goes out. If I slowly power up the 3rd/4th motor it will go dim but not out. As the motor is gaining RPM's it's dim but once it reaches it's set speed, determined by the pot, it gets brighter again.
I hope all that makes sense.
So, am I not getting enough current?
I used 4 DC motors 1.5V-3.0V, 4x25 Ohm rheostat pots, 4xDPDT switches (3A rated), and a 50mW green module (2.9V-3.0V)
So I thought I could use this DC adapter to power it:
It provides 1A and I can select how much voltage.
Now the problem. It works with 1 and 2 motors fairly well but powering up a 3rd or 4th motor bogs it right down. It goes dim and even goes out. If I slowly power up the 3rd/4th motor it will go dim but not out. As the motor is gaining RPM's it's dim but once it reaches it's set speed, determined by the pot, it gets brighter again.
I hope all that makes sense.
So, am I not getting enough current?