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This machine had 6 air pencils dentist drills mounted in place of the usual Servo drill press head. It was used to drill a series of holes from. This one job is the only job this machine has ever run. Only ever used the Y and Z travels. Not that it matters, the cast iron in this thing is HARD.
The table and the ways are ground and extreamly smooth. That would be neat! I could use one of my 90vdc motors size of a truck starter and power supply, mount the motor sticking up like a BP!
It looks like I could also move the column in twards the table by re-drilling the base. This would loose some throat but shorten things up, and help ridgidity. Oh yea, the problem, and question to you all, is two of the motor driver boards mounted on the motors are messed up.
That was two years ago. Not gunna do it. I am thinking something like a Geko drive might be usable. The motors on the mill look like 8pole wierd, I know steppers. Anyone know what protocall this thing uses. Maby I should give up the stock computer and try one of these PC driven software programs. Basicly, the point is, I want to get started in CNC machines. I thought this dyna might provide some practical experience in the learning process.
I have a ton on motors and drives, not sure how all this stuff works, but I want to learn how to make something cool out of all this stuff. I have stepper amps, DC brush servo amps, AC brushless servo amps, and some moton controllers.
I eventually want to cnc the Bridgeport that I have. Question about that, Most DC servo type mills have rotary encoders on the motors. Would not a linear encoder, like a DRO, be more accurate? I know AC brushless servos have resolvers for commutation, do they also typicaly also give position feedback?
I do see why speed steppers are for smaller applications. It seems the Geko drives will accept stepper input pulses and run a DC servo. I think this will be the way to go with my BP. If servo systems can use linear encoders, can a DRO encoder be used to input to the controller? I also have a Digamatic protocall to serial port connection uploader box. Perhaps this could make the scales readable by the controller?
By controller, I am leaning twards a PC base system. There are a few out there, not sure what is good. Thats cool. Thanks- --Doozer.
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