IDEX print heads, T1 colliding with T0 at start of print
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Good Day all
I have something puzzling going on. My printer is setup with an IDEX config, Both print heads mounted on the Y axis gantry, T0 Homes to the front (Ymin, Xmin), T1 Homes to the back (Ymax, Xmin).
I have both my print heads setup differently, .8 in the front and .4 in the back. Primarily I print non-detailed items with the front print head and more detailed from the back. I rarely use both print heads in the same print.
When I start a print with the T1 just before the printing starts T1 comes all the way forward and collides with T0 and skips steps before starting the print. From what I can tell before printing T0 attempts to move to U0 like its trying to hit the endstop but it just came out of the endstop in the back.
Start Gcode is very basic
G28
G32
G29 S1
T0The G28 and G32 complete successfully so I am assuming its something out of the G29 or there is a movement call in a G file somewhere calling for The U axis to move to 0 before starting to print.
Am I going down the right path on this or am I missing something?
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@Macgyver There appears to be an issue with running a bed mesh (G29 S1) on a tool that is using axis mapping, ie the tool that is on the U axis mapped to the X axis. Currently you'll need to have the probe on the tool that uses the XY axes directly.
Ian
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Hi @droftarts
Thank you for the reply, I have the BLtouch on the T0 toolhead, its why I activate it first using the T0 in the Start Gcode.
The second toolhead T1 (non-Bltouch) is being called by the slicer. as that is how I have assigned it in my slice.
If I create a small object (purge line) and print it first the collision does not occure.
could you take a guess at a work around where I can leave the front tool head not in use to print with the rear one only?
I am willing to test theorys, just not sure what else to try.
