I’ve been pondering a hybrid of cartesian and corexy/hbot kinematics design. It would be terrible for a 3D printer because it is asymmetric, but could possibly make sense for a laser, which is already asymmetric in that moves are dominated by X when engraving. Schematically, with Y in red and X in blue:
This would let you move the X motor off the X gantry, lightening the gantry and reducing inertial load for Y moves, and would allow keeping all of the motors outside the firing zone. It would be controlled like cartesian kinematics, except that every movement in Y would be composed inverted on top of any other X movement.
Does anyone know a name for this? I don’t see anything like this in Marlin, Smoothieware, RepRapFirmware, or Klipper.
It probably isn’t worth implementing, because gantry inertia should only matter for fast moves, and a laser doesn’t normally do fast moves in Y, but since I started thinking about it I became curious whether there was a name for it.