Import Mill Cnc conversion Motor question
Long time No questions.... I gave up on the whole mini mill cnc conversion, I'm just going to convert my large mill instead, it's the FX40 That you can get from Wholesale Tool, any how roughly it's got 18" of Y, 10" of X and 12" of Z quill travel, I'm planning on not cutting corners on this, I want to do it right, but there's a few things that I'm somewhat hazy on.
Cut to the chase, I'm planning on 3 G202's, powering 3 434 in-oz bipolar steppers from Automation Direct, Can I get away with direct drive, or is it going to be in my better interests to go with a ratio of 2:1 or 3:1?
I'm not looking to set IPM records, but would still like a final product that can pull off decent production speeds.
The 434 motors seem to me that they'd have more than enough power /speed / torque for this application, but I know there's guys out here that have retro'd similar machines, so that's were I'd like to hear some input.
Speed reducing steppers are generaly not a great idea as the torque falls off pretty fast with increases in RPM.
Can you provide a link to the mill so one can guestimate the weights?
Are you going to use ball screws?
Here's a link to the exact model Machine I have, where it's an import, it's sold under several different suppliers.
The Model # is the: ZAY7040G
I'd like to just work the backlash out of the existing lead screws, unless it's going to really inhibit my ipm rates and I would have to goto 5tpi ballscrews.