Neptune4.help

FAQs and Facts for the Elegoo Neptune 4 Series 3D Printer

User Tools

Site Tools


understanding_the_gcode_z_offset

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revisionPrevious revision
Next revision
Previous revision
understanding_the_gcode_z_offset [2025/09/20 16:45] dshoopunderstanding_the_gcode_z_offset [2025/10/14 19:31] (current) – [Setting and calibrating the gcode z offset] dshoop
Line 14: Line 14:
 (wip) (wip)
  
-Generally speaking an otherwise uninfluenced extrusion from the nozzle will have a circular cross section. If an extruded line is placed next to another extruded line which each have a circular cross section they only tangentially connect. It will also only tangentially connect with the plate resulting in very poor adherence. A more rectangular cross section is desirable for maximal surface area connection. By adjusting the layer height very slightly we can control this shape and it will become more "stadium" shapped, (==), flat on the top and bottom and rounded on the sides. +Generally speaking an otherwise uninfluenced extrusion from the nozzle will have a circular cross section. If an extruded line is placed next to another extruded line which each have a circular cross section they only tangentially connect. It will also only tangentially connect with the plate resulting in very poor adherence. A more rectangular cross section is desirable for maximal surface area connection. By adjusting the layer height very slightly we can control this shape and it will become more "stadium" shapped, flat on the top and bottom and rounded on the sides. 
  
 If we don't have good surface area connection in the extrusion lines the print will also be very weak and fall part on the layers.  If we don't have good surface area connection in the extrusion lines the print will also be very weak and fall part on the layers. 
Line 70: Line 70:
 {{ :orca_slicer_filament_z-offset_setting.jpg?400 }} {{ :orca_slicer_filament_z-offset_setting.jpg?400 }}
  
-===== Setting and calibrating the gcode z offset =====+===== Determining and calibrating the gcode z offset =====
  
 Follow the procedure described in [[how_should_i_set_the_z_offset_to_adjust_nozzle_height|How should I set the z offset]]. Follow the procedure described in [[how_should_i_set_the_z_offset_to_adjust_nozzle_height|How should I set the z offset]].
Line 79: Line 79:
  
 At best the paper method will asymptotically approach the thickness of the paper being used. Yet this is an arbitrary value nearly in the ball park of what a typical z offset might be. The z offset we're seeking is filament dependent and will vary by the filament being used. We're seeking a correct affect on the shape of the extrusion's cross section, a "smush", and that can't be defined by some arbitrary height.  At best the paper method will asymptotically approach the thickness of the paper being used. Yet this is an arbitrary value nearly in the ball park of what a typical z offset might be. The z offset we're seeking is filament dependent and will vary by the filament being used. We're seeking a correct affect on the shape of the extrusion's cross section, a "smush", and that can't be defined by some arbitrary height. 
 +
 +The same logic applies to using [[why_not_feeler_gauges|feeler gauges]].
 +
 +===== Related Topics =====
  
 === Is the CC setting the z offset or setting the probe z offset? === === Is the CC setting the z offset or setting the probe z offset? ===
/app/data/attic/understanding_the_gcode_z_offset.1758401116.txt.gz · Last modified: by dshoop

Donate Powered by PHP Valid HTML5 Valid CSS Driven by DokuWiki