Used for HBot or Corexy.
H-Bot
CoreXY
Set arm_solution to corexy or hbot in config, for example, add this line to your configuration file :
arm_solution corexy
Then uncomment corexy_homing in config if using homing
Also it is recommended to set
alpha_max_rate beta_max_rate
to the top speed your steppers can go, as these refer to the actuator speed (the X and Y steppers) which on a corexy can run nearly twice as fast as the requested Cartesian speed when going in certain directions.
Getting Direction Right
Movement in the X direction or Y direction always involves both alpha and beta motors. This can make it confusing to configure a corexy solution. If you find that after wiring and configuring your printer that movement is wrong, then these possible solutions may help:
Problem | Possible Solution | |||
---|---|---|---|---|
My axes are swapped | Invert the signal of one motor by adding or removing '!' | |||
One of my axes goes in the wrong direction | Swap the alpha and beta cables or swap the pin assignments |