search

prusa3d / PrusaSlicer

G-code generator for 3D printers (RepRap, Makerbot, Ultimaker etc.)
https://www.prusa3d.com/prusaslicer/
GNU Affero General Public License v3.0
7.7k stars 1.93k forks source link

Fan turns off during first two layers of non-build plate supports #1139

Open tjcolejr opened 6 years ago

tjcolejr commented 6 years ago

1.41.0-beta+win64

I have no idea how long this has been happening,

In my filament settings, I have the fan set to turn off during the first 2 layers of the model and this is functioning correctly.

I am printing supports that begin at layer 7, starting on a top surface of the model, and I noticed the fan was turning off when the first 2 (possibly 3) layers of the supports were printing. Below is a snip of the gcode showing the M107.

I think this is an error and needs to be either a selectable feature, or corrected because it bonds the bottom of the supports too well to the top of the model.

G1 X154.541 Y73.695 E0.02222 G1 X154.558 Y73.707 E0.00031 G1 X155.076 Y74.076 E0.00954 M107 ;BEFORE_LAYER_CHANGE ;1.56

G1 F8640 G1 X154.558 Y73.707 E-0.14664 G1 E-0.45336 F2100.00000 G1 Z1.560 F10800.000 ;AFTER_LAYER_CHANGE ;1.56 ; PURGING FINISHED G1 X149.572 Y73.731 G1 E0.60000 F2100.00000 G1 F1800

tjcolejr commented 6 years ago

Additionally, this DOES NOT happen if there are ALSO supports directly on the build plate.

bubnikv commented 6 years ago

@FidelCapo would you please test this?

FidelCapo commented 6 years ago

@bubnikv I can reproduce this issue

tjcolejr commented 6 years ago

Here is the relevant portion of my startup gcode:

M104 S130 ; set extruder temp M140 S60; set bed temp G28 W; home without mesh bed leveling G1 X125 Y100 F10000; move to the middle of the bed M190 S60; wait for bed temp M104 S[first_layer_temperature] ; set extruder temp M140 S[first_layer_bed_temperature] ; set bed temp G80; mesh bed leveling M190 S[first_layer_bed_temperature] ; wait for bed temp M109 S[first_layer_temperature] ; wait for extruder temp

And FYI, it completes the startup faster than the standard gcode. So if waiting is a problem..... Notice I set the extruder to 130 first. I have timed this so the mesh bed leveling completes before oozing begins, and the heating of the bed never stops so everything happens concurrently with the longest operation.

On Mon, Sep 3, 2018 at 9:45 AM HurkaF notifications@github.com wrote:

@bubnikv https://github.com/bubnikv I can reproduce this issue

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub https://github.com/prusa3d/Slic3r/issues/1139#issuecomment-418120233, or mute the thread https://github.com/notifications/unsubscribe-auth/AX2cNj1IjJKgi_p5OMFxVcpQz-fekUwgks5uXTKTgaJpZM4V5k_d .