Hi everybody. Bit of a noob here.
I got a second-hand Sherline 5400 mill with a Xylotex XS-3525/8S-4 controller and unmarked stepper motors. The calibration is off by about 50% [test travel for 1" only goes .5"]. The setup in Stepconf is using 200 Steps/Revolution, and 2 microsteps on each axis. I verified the lead screw thread pitch on the Sherline at 20 tpi with a direct 1:1 connection.
When I try testing the motor at 400 Steps/Rev and 2-Microsteps the Z-Axis works but X-stalls and generally complains. It seems like it's not going a full 1" but that may be an error in my observation while the axis is in motion- I'll do a more accurate measurement tomorrow.
I'm using the "Other" settings for the controller type and have set the timing to 1000, 1000, 200, 200 for Step Time, Step Space Direction Hold and Direction Setup, respectively. That seems to match the data on this site and the datasheet.
A few questions to the community:
Should the number of micro steps change the number of radians/degrees traversed if the steps per revolution is constant [e.g. 200 steps/rev set with (2, 4, or 8 micro steps) should be the same degrees traversed]? - I think not since micro steps should be incremental between a full step -- again, i 'm a bit of a noob wrt Steppers in general so please forgive my ignorance.
Also, how do you jog in single-step increments to test movement in absolute steps? -- I set the TPI on the Z-Axis to one and used the "Test this axis" GUI to "Run" with a "Test Area" of +-1" thinking that should traverse one full revolution if the calibration is correct. It seems close to one full rev when i set SPI to 400.
Any recommendations for setting up accurately given this setup with an unknown motor?
Thanks,
Dave
