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Messages - POLY-MAN

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Show"N"Tell ( Your Machines) / Bridgeport and Steppers ???
« on: April 02, 2013, 03:01:11 PM »
Hey Guys, I would like your inputs on a machine build I am doing, I acquired a Bridgeport CNC Series 1, R2C3 Mill, no control system, still has the 140v 29A SEM Servos on it, I have a Home based, Cast Polyurethane Business, and I need the mill to make molds for customer, the accuracy of this mill does not have to be stellar, and it doesnt have to be a speed demon, I just need something that will work, I will basically will just be cutting groves in aluminum plates for the mold cavities, like most folks I dont have a lot of money to throw at this, so I was opting for a stepper "Fix", I realize the servos on there are a better option, but I need to get this thing going quickly, and I already am familiar with the stepper technology, I did find the Dugong servo drivers that would work for these, if I was going to keep the servos, but I dont even know if the servos work, and a big power supply would be a problem for me as well. So I was thinking about the Chinese 1600 oz in stepper, Leadshine AM882 driver from   Ebay, An 80v 10A power supply for each axis and a C11 BOB from cnc4pc,
Please let me know if I am OK with this or way off base.
Any input appreciated
Thanks in advance

Mike
MDpoly.com

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Hi Gropper,   How are the Chinese Steppers working out for you,   I was thinking about doing the same thing on a Series 1
R2C3 I just got my hands on, ( SEM DC motors are there but drivers and controllers are shot) ( was going to use MACH 3)

 I am not interested in speed,  I just want to be able to mill shallow grooves in plate aluminum for urethane molds,
I am new to this group and CNC in general so any suggestions from group also is appreciated.

I thought about keeping servos and using Dugong drives but I also want to be able to repair quickly if needed in the future, and I am not sure how easy and expensive it would be to find a servo replacement if needed

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