| T O P I C R E V I E W |
| BlaiseBrusiato |
Posted - Jan 26 2006 : 04:53:53 AM
Hi! Im new here, obviously, so I have no idea where this should go. I am putting it under Auto for obvious reasons.
I have a cruise control module out of a Ford POScort and would like to use it in a robotics project. Based on http://www.aaroncake.net/circuits/stepper.htm is there someone here who could help me make whatever changes need to be made to run the motor in this gearbox? http://i3.photobucket.com/albums/y89/Valkyn/wtf/IMG_0728.jpg The motor has 4 power connections which I assume iether means two coils with incividual connections or three coils with one common lead? Will that cirquit be modifiable if the motor is not 4 coils as is the cirquit?
I am looking to have speed control and direction control. The cirquit I listed includes direction control, and I would assume an oscilator cirqut with a built in variable resistor could supply an acceptable pulse rate.
I will say that I am not an electronics expert but I usually pick up on thing quickly, and I have built cuirquits from scratch before so I believe I would have the skill to follow a set of plans and build a board and everything so someone would help me change the resistors and transistors in that cirquit to handle the power of the motor I wish to use. I have not tested the draw yet but I am sure it is more then a 1/4W.
I would appreciate any help that could be given no matter how little!! Thanks!
Thanks for reading another long winded post by Blaise! :p |
| 1 L A T E S T R E P L I E S (Newest First) |
| BlaiseBrusiato |
Posted - Jan 26 2006 : 07:54:10 AM
Blaise re-visits his post ...
Well.. So much for that. I just played around with that motor and it turns out that the 4 pins include one common and three inputs, such that jamming a lead into the common and touching the other three in a 1,2,3,1,2,3,1,2,3, series turns the motor, and on 6volts it is damn near unstoppable (or would be without a 1 second gap between steps :-) )
It also turns out that now that I look at the application I wished to use it for, the throw is way too short, and there is a permanent stop built into the gearbox that only lets the output have a 180 degree turn, which happens to be a curious number because by my calculations, it will take 180 steps to produce a 180 degree turn, and that was a really long sentance...
So now I am right back to looking for a linear actuator that I can actually afford with a 4 to 8 inch travel that will run off of 6 volt and pull at LEAST 25 pounds. Any ideas?
Thanks for reading another long winded post by Blaise! :p |
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