Yes, on my 3D printer there is a "disable steppers" switch in the control panel to avoid damage when leveling the bed and manually moving it. I think I will leave my 9x29 mill manual only.
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On 3/5/2019 12:45 PM, Harvey White wrote:
On Tue, 5 Mar 2019 08:49:20 -0600, you wrote:
Yes, CNC rules. I have a few 3D Printers. I though about CNC'ing (is
that a word?) my mill but then I figured I would want handles on it too
for manual work as everything in CNC would likely not be a great idea.
Most of the CNC mills seem to lack the handles or maybe I didn't look
hard enough but I know turning a stepper motor can mess up some
controller boards as they generate voltage when you do that and back
feed the board.
You could always disconnect it (power off!!!) and disconnect the
motors. You'd want dual shaft steppers. I do think it depends on the
drivers, though.
Some drivers can be disabled, and the drivers may be happy with
voltage induced on the leads. The main problem is that the inductive
spike when disconnecting with power on will spike through the driver
transistors.
Harvey
