Help solving a motor problem???
I have built 4 picstep V4.0 boards and PMINMO's 4 axis interface. I have all 4 motors up and running using Turbocnc
I have a problem though
I can run all 4 motors fine in both directions at low speed but as I try and crank up the speed they run fine in one direction but as they accelerate in the other direction they loose step and just stop spinning altogether. I have tried various wiring variations to the motor and still no joy.
When I change the axis step from hi to lo in the turbocnc config menu the problem occurs but in the opposite direction to before.
I have a35V supply capable of 20+A and 4 motors drawing 2.8each <7.15K resistors on picstep boards> so I am good to go with the PSU. Also this is on an older laptop, could this be my prob?
I have yet to hook a scope up but it kind of seems to me like maybe I am getting a funky wave form in one direction ????
Any advice would be great
Last edited by barmybovine; 04-04-2006 at 09:59 AM.
Sounds like your laptop port is not putting out enough voltage.