[RESOLVED] Probing Margin - Coupler Safe Probing

[rajavel1990]

I have used a coupler for the Z Motors and when i try to home the hot-end fan is getting crashed on the coupler. I tried to change the PROBING_MARGIN to 20 and no change at all. Can you please help me on where to get this fixed so that when the homing sequence happens it moves few MM towards the X Axis so that it does not get crashed on the Z Motor Couplers ?

[thisiskeithb]

PROBING_MARGIN will not affect homing.

This firmware is setup for a genuine MK3S or newer upgraded with standard Bear parts and upgrades listed in Prusa_AIO_Configuration.h. This means Z motors without couplers, so there is no interference with the X axis / hotend assembly.

You will need to find different Bear parts / hotend that doesn’t interfere (or remix the existing parts), but that configuration is not supported by this firmware fork due to all the potential variables.

[rajavel1990]

Thanks Keith, i will have this checked on.,

[joshua76y]

I have the same problem, so I modify the model file and reinstall to prevent that happends.

[rajavel1990]

do you have the modified stl files ?

[joshua76y]

Yes

[rajavel1990]

Yes

Can you please send the modified files?

[joshua76y]

I modified the extruder mount back file to change the X homing position, avoiding crashed on the coupler, so I will lost about 5mm X printing area, you mind that?

[rajavel1990]

That should be fine not a problem