Extruder calibration and 1st layer? - Assembly and first prints troubleshooting https://forum.prusa3d.com/forum/original-prusa-i3-mk2-5s-mk2-5-assembly-and-first-prints-troubleshooting/extruder-calibration-and-1st-layer/ Prusa3D Forum Discussion Board en-US Sat, 06 Jun 2026 23:37:19 +0000 wpForo 60 RE: Extruder calibration and 1st layer? https://forum.prusa3d.com/forum/original-prusa-i3-mk2-5s-mk2-5-assembly-and-first-prints-troubleshooting/extruder-calibration-and-1st-layer/#post-638842 Mon, 20 Feb 2023 14:01:40 +0000 aaah ok, thankx then I will use 140mm.

 

Posted by: @karl-herbert

Original settings for mk25 are 140 (FW 3.1.4) - see here: https://github.com/prusa3d/Prusa-Firmware/blob/MK25/Firmware/variants/1_75mm_MK25-RAMBo13a-E3Dv6full.h

wbr,

Karl

 

]]> Assembly and first prints troubleshooting ronyd https://forum.prusa3d.com/forum/original-prusa-i3-mk2-5s-mk2-5-assembly-and-first-prints-troubleshooting/extruder-calibration-and-1st-layer/#post-638842 RE: https://forum.prusa3d.com/forum/original-prusa-i3-mk2-5s-mk2-5-assembly-and-first-prints-troubleshooting/extruder-calibration-and-1st-layer/#post-638841 Mon, 20 Feb 2023 13:35:32 +0000 Original settings for mk25 are 140 (FW 3.1.4) - see here: https://github.com/prusa3d/Prusa-Firmware/blob/MK25/Firmware/variants/1_75mm_MK25-RAMBo13a-E3Dv6full.h

wbr,

Karl

]]> Assembly and first prints troubleshooting karl-herbert https://forum.prusa3d.com/forum/original-prusa-i3-mk2-5s-mk2-5-assembly-and-first-prints-troubleshooting/extruder-calibration-and-1st-layer/#post-638841 Extruder calibration and 1st layer? https://forum.prusa3d.com/forum/original-prusa-i3-mk2-5s-mk2-5-assembly-and-first-prints-troubleshooting/extruder-calibration-and-1st-layer/#post-638807 Mon, 20 Feb 2023 02:55:29 +0000 From M92: ESteps is set to 133mm

measuring the filament after extrusion, i have under extrusion.

calculated new estep at 140.

Is 133mm standard for this printer?

also, what is a typical z value for the first layer calibration?  

]]> Assembly and first prints troubleshooting ronyd https://forum.prusa3d.com/forum/original-prusa-i3-mk2-5s-mk2-5-assembly-and-first-prints-troubleshooting/extruder-calibration-and-1st-layer/#post-638807