1
General Mach Discussion / Re: It's Alive! (El Cheapo Dyna 2400 Mach III conversion)
« on: November 21, 2011, 06:10:02 AM »
It's good to hear somebody that continues work on Dyna. I have finish mine, and results is: First I have to remove all electronics form Dyna 2400, second I have removed all transmission in all 3 axes and changed to THK ground ball screw witch I have obtain from "http://www.ebay.com/sch/jak8858/m.html?_trksid=p4340.l2562" this guy. No need to buy new one, this are in excellent condition. Look for C1 quality, and 14mm diameter with 4mm lead. You need to do some more adaptation to connect this to machine. I have used R+W couplers for connecting this ground ball screw to motors. This is my recommendation, and for third I have changed motors for servo Sanyo Denky from this guy "http://www.ebay.com/itm/Sanyo-Denki-BL-Super-P5-Servo-Motor-P50C08075HXS21-750W-/400251738520?pt=LH_DefaultDomain_0&hash=item5d30dcd998" and after this I have used Teknic servo drive witch made this system works. Smooth stepper is necessary to be in this configuration, and you can have fast machine (3.5m G0) and precision of 0.00025mm theoretically. In practice I have checked out to 1 micron repeatability in all axes. Now, I'm working on 4th axes and results will come in the week. If you need some advice just send post. Best regards Sasha