PrusaSlicer Questions



  • We are testing PrusaSlicer as a potential replacement for Simplify3d. One of the things I noticed right off the bat is it does not appear to be as customizable as Simplify3d. An example is there appears to be no way to change the default commands - like fans. PrusaSlicer is using M106 S255 to turn on the part cooling fan and M107 to turn it off.. that works, but M107 has been deprecated and M106 should include the P parameter. In Simplify3d, there are options to make these adjustments.

    Are we missing something?

    Also, I'm noticing the custom start g-code is inserted in the middle of the commands PrusaSlicer auto inserts. This oddly sets the hot end temp, inserts the custom start g-code, then waits on the hot end temp to be reached. That isn't going to work as I have my wipe routine inserted here..

    I'm curious how others have overcome similar issues? I'll be surprised if it's not just my lack of understanding.. Thanks!



  • M107 - works, so nothing to overcome (at least for now)

    Setting temperatures
    If You add into custom gcode

    M104 S0 Tx
    

    then prusa slicer is not adding it at the beginning and You can set it later when You need it. Downside is that prusa slicer will use later M104 if You have different temp for first and next layers.

    My startup code:

    G90 ; use absolute coordinates
    M83 ; extruder relative mode
    T-1
    M104 S0 T0
    ; M104 S0 T1
    M144 S1
    M140 S[first_layer_bed_temperature] ; set bed temp
    G10 P0 R120 S[first_layer_temperature_0]
    ; G10 P1 R120 S[first_layer_temperature_1]
    M116
    G28 ; home all without mesh bed level
    G32 ; mesh bed leveling
    M404 N1.75 D0.4
    G1 X0.0 Y-4.0 Z[first_layer_height] F1000.0 ; go outside print area
    T0
    M116
    G92 E0.0
    G1 E4.0 F300.0
    G92 E0.0
    G1 X60.0 E9.0 F1000.0 ; intro line
    G1 X100.0 E12.5 F1000.0 ; intro line
    G92 E0.0
    

  • Moderator

    PrusaSlicer also has a powerful post processing function, so a lot can be done with that.



  • I gotta be honest.. while I'm admittedly a novice with using it, PrusaSlicer is performing some crazy moves for no good reason. Made our printers sound like they were grinding in tight areas where they sing using Simplify3D. Plus - it was overextruding by around 20%, however I wasn't even working on adding pressure advance or volumetric extrusion.

    I'll come back and mess with it more when we have time, as I really wanted it work. I guess I just have Simplify3D down to such a science that I'll continue to deal with it..



  • @oozeBot said in PrusaSlicer Questions:

    I guess I just have Simplify3D down to such a science ...

    That's probably it. Your Simplify3D got perfectly tuned over years of usage.

    Problem is, Simplify3D became a stale product and many drop it for PrusaSlicer or Cura.



  • I have suspicions that S3D is merely a bootleg hard-fork of legacy Slic3r from many moons ago. I wish we could easily incorporate (some) of the changes S3D has made to it. 😛

    Slowly, we will get there. With the work of the Prusa team, we can piggyback until the product is mature. They are doing a LOT of the dirty work that nobody wants to do.



  • @zapta said in PrusaSlicer Questions:

    @oozeBot said in PrusaSlicer Questions:

    I guess I just have Simplify3D down to such a science ...

    That's probably it. Your Simplify3D got perfectly tuned over years of usage.

    Problem is, Simplify3D became a stale product and many drop it for PrusaSlicer or Cura.

    Or go to Ideamaker which is even better


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