Thread: Score!
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Unread 11-13-2004, 10:49 PM   #17
jaydee
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Join Date: Dec 2001
Location: Spokane WA
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Quote:
Originally Posted by JFettig
ooh, It is possible that your controller might work, but not the drives. I use turbocnc 4.01 right now as my controller on my old p166 laptop. I use Gecko drives wich are hooked up to the step and direction pins of the parallel port output wich outputs the pulses to the motors. They are top of the line stepper drives 10microsteps per step, that means I get 2,000 steps out of one revolution vs 200. I plan on running about 80vdc through these motors when I get around to it. This will give me rapid movements over 120ipm

Im guessing your drives use half stepping or possibly full stepping with fine thread leadscrews.

The handwheel addition will probably be nice, the only thing is that when using ballscrews you can push your table around by hand when there are no motors attached, for simple stuff it would be a problem, like moving the stuff around, but you would definately have to have the Z axis motor powered up to do any milling.

I just got done milling part of my motor mount for my new 1.5hp dc motor for my spindle
http://www.cnczone.com/gallery/showphoto.php/photo/722


Jon
Mine run full step at 200 on the sherline. They are only 144oz though. The lead screws are actually pretty damn good for non ball screw style. They are a nice fine thread lead screw.

I was looking at this http://www.geckodrive.com/item.htbml...=&item_id=G201 geckodrive driver for this conversion with better stepper motors. I assume that is the one you are using or maybe the other one http://www.geckodrive.com/item.htbml...=&item_id=G210 Not sure what the difference is between them.

Is that all you need to make the stepper motors work? That driver, the stepper motors, a PC, and turboCNC? Or is there any other parts/software needed? I am assuming the that geckodrive will replace my curent controller.

I am first going to try it with my current parts just to make sure I can succesfuly convert that table over. If it works and it looks like it will be worth the cost I will buy the better parts for it.
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