Originally Posted by
harryn
Hi, I have been following your thread for a while, as a "normal" 4 axis driver solution is out of my budget range, but this one seems to be within it, or close.
I am thinking about using this motor Kelling kl34H2120-42-8B, which I think fits in or close to your design range.
My router will be driving the motors rather slowly to obtain max torque, commonly 3 rpm to max 50 rpm over a total 10 turns range. One of the unique quirks of the design is that it is direct drive, so no gear reduction at all, in a sort of rack and pinion. ( There are good and bad reasons for this, but this is the current concept)
In a perfect world, I would like a driver with at least 1/64th or smaller microsteps, and would always run it in that mode. I realize this is out of your design range, but us beggers can't be choosers.
Anyway, I was thinking about buying a motor and loaning it to you for shaking down your driver board using a motor with a bit more load demand and maybe doing some low speed testing. It is ok if your driver board needs to run it in a somewhat under powered state.
Let me know what you think.
Take care
HarryN