Keling 6056 driver & 425 steppers

[flyinwilly]

Need some other thoughts on my CNC plans for my plasma table.

I am planning to modify my downdraft water table for cnc. Right now I use it for freehand work. actually, I am going to replace the existing table with a sturdier,more powerful unit but the size will remain the same, 3x4'. I've purchased linear rails for the z and y axis (EBAY specials) and will either use linear rails or V rails for the x (depending on what comes first on Ebay). The drive will be belt on x & y and acme screw on z.

I would love to go with Gecko drives (203V) but my budget is getting strained. I have been looking at the Keling equipment. He has very good prices on motors and drivers. The one concerning difference is that his drivers do nothing for mid range resonance of the steppers. However, since I usually nest many parts on a sheet and don't think I'll be doing a lot of rapids, I can probably get by with mechanical damping.

I've read a lot of posts concerning overheating, supply voltage / current, torque, etc. It all gets very confusing. The manual table is used 3-4 hours per day and to eliminate any capacity problems, I've decided to over provide the component capability. Hopefully, the new machine will reduce the working time and save some other work.

With that being said, I plan on using the KL-6056 driver(5.6A peak), 425 OZ steppers, C10 BOB, 36 or 48 V PSU (not decided yet). Keling has quoted a price of $475 which is pretty good. It's only $379 for the 4030 drivers( 3.0A peak).

That's my current plan. Any good thoughts ?

Willy