Home offset for small PEI

General Discussion
1

Hello,
My brand new PEI sheet has just arrived. Unfortunately this is too small, and 3-3 mms on every edge of the sheet if I place it in the very center.
I’d like to use this sheet while the replacement not arrive. Is there any way to modify the printer.cfg to set these offsets?
Thanks a lot!

2

Just determine the toolhead coordinates where your PEI sheet actually starts, define this as 0,0 and use the size of the PEI as build-size in the slicer.

3

Thanks a lot . Can you help me, how can I start it? I’ve tried to set the position_min and position_endstop settings to the correct negative values without any good result. In case of G28 gcode it always goes to x0 y0 z0 position.

4

See this graphic (by courtesy of Voron)

grafik
grafik1524×1020 52.7 KB

You would set:

position_endstop: 255
position_max: 255

This allows your printer to reach your desired X=0 and Y=0.
In your slicer’s configuration you would set a bedsize of only 250 x 250 making sure that your print actually ends up on the bed.

In your case X=0 and Y=0 is the start of your PEI and the size of your PEI is the bedsize for the slicer.

1 Like
5

Thanks, it’s solved. I don’t know how can I set the topic to closed :frowning: