| Pulley | Mech. Setup | Controller | theor. resolution [mm] | max. speed of motor [mm/min] | Tested acceleration in y-direction [mm/s²] | Tested speed [mm/min] | Evaluation |
|---|---|---|---|---|---|---|---|
| 50 teeth GT2 | dual shaft y axis | GRBL | 0,03125 (16x microstep) | 70517 x/y-motor same | 3500 (with 2 motors on y) | 50.000 working | Accuracy not sufficient. Jumping on fiducials, not dialing in |
| 20 teeth GT2 | GRBL | 0,0125 (16x microstep) | 28207 x-motor 40743 y-motor | 2000 (with 1 dualshaft motor on y) | 30.000 working | slower, but very accurate | |
| Marlin 1.0@Arduino Mega | switched to marlin for soft endstops and to have 5 stepper driver on ramps avail | ||||||
| Marlin 2.0@Arduino Due (disabled the S-Curve-Acceleration feature due to lost steps) | 2000 (with 1 dualshaft motor on y) 5000 on x is no problem | 48.000 on y-axis 60.000 on x-axis is no problem | can't go for higher speed since acceleration is limited, since the stepper driver for y-axis is at its limit (a4988) | ||||
| switched in 10-2018 to two separate stepper-motors on y axis and use the dual stepper feature in marlin to align y-axis by means of two endstops on y | 28207 x/y-motor same 40743 y-motor | 3.200 reliable on y-axis (2 motors) | 48.000 reliable on y-axis (2 motors) |
For reference see the machine specific Marlin 2.0-bugfix settings here and look through the commits: https://github.com/mgrl/Marlin2OnRaddsForOpenPnP