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Offset help

Posted: Tue Jun 21, 2022 10:16 am
by kdz76
I am having offset issues with Microswiss direct drive on an ender 3. prints are not centered on bed and initial nozzle wipe is in front of the build plate. i have tried a few things but nothing seems to be helping so if anyone could see if the attached settings are correct or incorrect or put me in another direction it would be greatly appreciated.

if i put the Gcode from microswiss in the scripts tab the machine the machine will home but then start its print in the middle of the bed
G28 ; home all axes
G92 X-5.0 Y-10.0 ; set home offsets
G1 X0 Y0 Z0.2 F3000 ; get ready to prime
G92 E0 ; reset extrusion distance
G1 X160 E15 F600 ; prime nozzle
G1 X180 F5000 ; quick wipe


I have tried to alter original FFF script to move the wipe location and that has seemed to work
G28 ; home all axes
G1 X5Y25 Z0.2 F3000 ; get ready to prime
G92 E0 ; reset extrusion distance
G1 X160 E15 F600 ; prime nozzle
G1 X180 F5000 ; quick wipe


I have also changed the Gcode Origin offset from the original setting of zero for all to
X-axis -3.0
Y=axis -16
This has put the print closer to center but has also reduced the print size and on a larger print the rear edge part on the Y axis is cut off
Capture.JPG

Re: Offset help

Posted: Wed Dec 14, 2022 1:02 pm
by S3D-Jason
Have you already read this FAQ topic?
https://www.simplify3d.com/resources/faq/#quest-6324

It addresses the same issue and gives some tips on how to determine the correct offsets. I tend to do a G28 XY homing movement, mark the location of the toolhead, then do a G1 X0 Y0 F1200 move and mark where the toolhead ends up. The difference between those 2 marks is essentially the correct origin offset.