joesoap583
Posts: 94
Joined: Sat Mar 08, 2014 11:01 pm

Setting Z Height

Wed Oct 09, 2019 8:15 am

I have an Anycubic I3 Mega which I am adding an IR sensor to in order to calibrate the height of the Z axis. All working well, however the Z home position is 2.5mm above the bed, so I need to lower the Z axis by 2.5mm.

Reading up on this subject provides details for using the G92 and M851 gcode. I have reflashed the firmware with Marlin 1.1.9 and whilst that update worked as expected, using G92 or M851 doesn't seem to work.

I notice on the S3D FFF configuration dialog contains a section for global G-code offsets. Does this offer the required definition for offsetting the Z axis? In a quick test this doesn't seem to work as expected, though perhaps I'm not using it correctly. Suggestions welcome.
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dkightley
Posts: 2060
Joined: Tue Mar 10, 2015 4:09 pm

Re: Setting Z Height

Wed Oct 09, 2019 12:16 pm

The printer options.....Tools menu = >>>Options...Machine tab...… has a Z-offset setting which may be a more appropriate option to use.
Doug Kightley
Volunteer at the National Tramway Museum http://www.tramway.co.uk
Railway modeller and webmaster at http://www.talkingtgauge.net

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