End Print Extruder Height  

RE: End Print Extruder Height

Look in PrusaSlicers's Printer settings/custom g-code/end g-code

What you want to change can be done at the red figure.

BUT, why do you want to do that? Does manually raising the carriage (long press knob, followed by clockwise spin) not meet your needs?

G4 ; wait
M221 S100
M104 S0 ; turn off temperature
M140 S0 ; turn off heatbed
M107 ; turn off fan
{if layer_z < max_print_height}G1 Z{z_offset+min(layer_z+30, max_print_height)}{endif} ; Move print head up
G1 X0 Y200; home X axis
M84 ; disable motors

RE: End Print Extruder Height

Thanks

I find that I always seem to move the extruder up, so I thought I would just automate the action.

Thanks again

W

RE: End Print Extruder Height

Or change that entire line to G1 Z210 ... and that raises the Z to maximum.

Alternatively:

; {if layer_z < max_print_height}G1 Z{z_offset+min(layer_z+30, max_print_height)}{endif} ; Move print head up
G1 X0 Y210 Z210 ; home X axis, push bed forward, raise Z to max

RE: End Print Extruder Height

Or if you want to get fancy, you can use this line that moves the extruder up to a point proportionally in the top 10cm of the build volume as the final z-height is to the full build volume. Examples using the default MK3 build volume height:

• If the final z-height is only 10% of the build volume (21mm) the extruder will go to 90mm below the top of the build volume (120mm)
• If the final z-height is 50% of the build volume(105mm) the exruder will go to 50mm below the top of the build volume(160mm)
• If the final z-height is 90% of the build volume (189mm)  the extruder will go to 10cm below the top of the build volume (200mm).

Ok, fancier than necessary (as mentioned above simply sending the extruder to the top with a G1 Z210 (or G1 {max_print_height} for all printers) should work in all cases), but I like it and that is what is important to me. 😉 Plicer/Slic3r g-code formula:

{if layer_z < max_print_height}G1 Z{z_offset+min((layer_z/max_print_height)*(max_print_height-100)+100, max_print_height)}{endif} ; Move print head up proportionally of print height to max 

Honestly, there is one part of the formula that I'm not clear about is how z_offset factors in. I really haven't used it so I'm unfamiliar with how it would effect the final position of the extruder. But since I was just modifying the existing Prusa supplied formula to fit my needs, I didn't want to blindly throw out something that I don't fully understand.

RE: End Print Extruder Height

@sem: z_offset should be negligible and I wouldn't use it. Plus, according to some readings it isn't a factor after a dozen layers anyway (Prusa slowly lowers the factor as layers are extruded until the offset no longer affects the print.  So while very low parts might be helped by using it, taller objects might be affected because it is used (albeit, 2 mm generally won't be an issue, but with parts near 210 mm tall it could be disastrous).