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    How to make Prusa Slicer work

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    • A Former User?
      A Former User
      last edited by

      Good morning, as you maybe have read in my pervious post I'm having problems with Ideamker slicer because I can't set at all the PA and it's beaving in a weird way placeing the seam.
      I would like to use Prusa Slicer to see if the problem is slicer-related or in some way printer-related....With PrusaSlicer I'm exeperiencing the issue that the extrusion amount is very very very poor, almost no filament come out the nozzle....of course I'm missing some settings, here's my settings, what am I doing wrong?:

      TinyTake28-08-2021-09-06-49.png TinyTake28-08-2021-09-06-34.png TinyTake28-08-2021-09-05-41.png

      here's my start GCODE:

      M104 S[first_layer_temperature]; set extruder temp
      M140 S[first_layer_bed_temperature]; set bed temp
      M109 S[first_layer_temperature]; wait for extruder temp
      M190 S[first_layer_bed_temperature]; wait for bed temp
      
      M83 ; relative extrusion mode
      
      M98 P"Print_gcodes/print_pla_pressure_advance.g" ;pressure advance
      
      T0
      
      M98 P"Print_gcodes/print_start_gcode.g" ; start gcode operations
      

      print_pla_pressure_advance.g is an empty file for now

      and this is print_start_gcode.g:

      M106 P11 S100 H-1 ; Turns on LED Stripe
      G28 XY ;Home XY
      M561 ; Clear any bed transform that might be in place
      G1 X165 Y165 ; Move Probe to middle of bed
      G30 ; Do a single probe
      G29 S1 ; load height map
      
      M201 E500.00:500.00 ; Set extruders acceleration
      
      ; ==============================================
      G1 Z1.0 F3000 ; move z up little to prevent scratching of surface
      ;-----------------------------------------------------
      G1 X1 Y10 Z0.3 F5000.0 ; move to start-line position
      G1 X1 Y250.0 Z0.3 F1500.0 E22 ; draw 1st line
      ;-----------------------------------------------------
      G1 X1.3 Y250.0 Z0.3 F5000.0 ; move to side a little
      G1 X1.3 Y10 Z0.3 F1500.0 E22 ; draw 2nd line
      
      G1 E-2 F3000 ; retract filament 2mm
      G92 E0 ; reset extruder
      
      ; ==============================================
      G1 Z1.0 F3000 ; move z up little to prevent scratching of surface
      

      p.s.
      even changing from relative to absolute "E dsitance" nothing changes

      wejrijoundefined 1 Reply Last reply Reply Quote 0
      • wejrijoundefined
        wejrijo @A Former User
        last edited by

        @the_dragonlord in the filament settings: extrusion multiplier 1.0

        A Former User? 1 Reply Last reply Reply Quote 0
        • A Former User?
          A Former User @wejrijo
          last edited by

          @wejrijo said in How to make Prusa Slicer work:

          @the_dragonlord in the filament settings: extrusion multiplier 1.0

          no changes

          wejrijoundefined 1 Reply Last reply Reply Quote 0
          • wejrijoundefined
            wejrijo @A Former User
            last edited by

            @the_dragonlord said in How to make Prusa Slicer work:

            @wejrijo said in How to make Prusa Slicer work:

            @the_dragonlord in the filament settings: extrusion multiplier 1.0

            no changes

            https://mattshub.com/blogs/blog/extruder-calibration

            A Former User? 1 Reply Last reply Reply Quote 0
            • A Former User?
              A Former User @wejrijo
              last edited by A Former User

              @wejrijo said in How to make Prusa Slicer work:

              @the_dragonlord said in How to make Prusa Slicer work:

              @wejrijo said in How to make Prusa Slicer work:

              @the_dragonlord in the filament settings: extrusion multiplier 1.0

              no changes

              https://mattshub.com/blogs/blog/extruder-calibration

              Thank you but I know well how to set and calibrate my printer....with Ideamaker and Simplify3D I have no extrusion issue, only with PS

              PCRundefined achrnundefined 2 Replies Last reply Reply Quote 0
              • PCRundefined
                PCR @A Former User
                last edited by

                @the_dragonlord Look at the Filament Override tab

                A Former User? 1 Reply Last reply Reply Quote 0
                • A Former User?
                  A Former User @PCR
                  last edited by

                  @pcr said in How to make Prusa Slicer work:

                  @the_dragonlord Look at the Filament Override tab

                  TinyTake28-08-2021-09-46-44.png

                  empty....

                  1 Reply Last reply Reply Quote 0
                  • achrnundefined
                    achrn @A Former User
                    last edited by

                    @the_dragonlord said in How to make Prusa Slicer work:

                    with Ideamaker and Simplify3D I have no extrusion issue, only with PS

                    Slice the same very simple model (like a three-layer solid square) and read the gcode to see if they are all consuming the same amount of filament?

                    I note that in the gcode snippet up thread, your first two lines each extrude 22mm of filament over a 240mm line, that's 52.9mm3 of material, so should be laying down a 0.22mm2 line of extrusion, which if nozzle is at 0.3mm off the bed should be 0.7mm wide. If you're not getting that, it looks like a printer problem, not a slicer problem.

                    A Former User? 2 Replies Last reply Reply Quote 0
                    • A Former User?
                      A Former User @achrn
                      last edited by

                      @achrn said in How to make Prusa Slicer work:

                      @the_dragonlord said in How to make Prusa Slicer work:

                      with Ideamaker and Simplify3D I have no extrusion issue, only with PS

                      Slice the same very simple model (like a three-layer solid square) and read the gcode to see if they are all consuming the same amount of filament?

                      I note that in the gcode snippet up thread, your first two lines each extrude 22mm of filament over a 240mm line, that's 52.9mm3 of material, so should be laying down a 0.22mm2 line of extrusion, which if nozzle is at 0.3mm off the bed should be 0.7mm wide. If you're not getting that, it looks like a printer problem, not a slicer problem.

                      The two lines come out perfectly, the problems start with the sliced GCODE

                      1 Reply Last reply Reply Quote 0
                      • A Former User?
                        A Former User @achrn
                        last edited by A Former User

                        @achrn said in How to make Prusa Slicer work:

                        @the_dragonlord said in How to make Prusa Slicer work:

                        with Ideamaker and Simplify3D I have no extrusion issue, only with PS

                        Slice the same very simple model (like a three-layer solid square) and read the gcode to see if they are all consuming the same amount of filament?

                        I note that in the gcode snippet up thread, your first two lines each extrude 22mm of filament over a 240mm line, that's 52.9mm3 of material, so should be laying down a 0.22mm2 line of extrusion, which if nozzle is at 0.3mm off the bed should be 0.7mm wide. If you're not getting that, it looks like a printer problem, not a slicer problem.

                        Here are the first layers of a simple cube sliced with ideamaker:

                        ;PRINTING: default-box.3mf
                        ;PRINTING_ID: 0
                        G1 F2400 E-3.0000
                        G0 F9000 X155.292 Y155.292
                        ;TYPE:WALL-OUTER
                        ;WIDTH:0.585
                        G1 F1500 E3.0000
                        G1 F2400 X164.708 Y155.292 E0.6321
                        G1 X164.708 Y164.708 E0.6321
                        G1 X155.292 Y164.708 E0.6321
                        G1 X155.292 Y155.292 E0.6321
                        G0 F9000 X156.462 Y156.462
                        ;PRINTING_TIME: 13
                        ;REMAINING_TIME: 202
                        ;LAYER:1
                        ;Z:0.500
                        ;HEIGHT:0.200
                        M106 S255
                        G4 P200
                        M106 S255
                        M104 T0 S205
                        ;PRINTING: default-box.3mf
                        ;PRINTING_ID: 0
                        M82
                        M98 P"Print_gcodes/pressure_advance_at_layer_change.g"
                        M83
                        G0 F900 Z0.500
                        G0 F9000 X155.225 Y155.225
                        ;TYPE:WALL-OUTER
                        ;WIDTH:0.450
                        G1 F600 X164.775 Y155.225 E0.3288
                        G1 X164.775 Y164.775 E0.3288
                        G1 X155.225 Y164.775 E0.3288
                        G1 X155.225 Y155.225 E0.3288
                        G0 F9000 X156.125 Y156.125
                        ;PRINTING_TIME: 17
                        ;REMAINING_TIME: 198
                        ;LAYER:2
                        

                        Here are the same file sliced with PS:

                        ;LAYER_CHANGE
                        ;Z:0.44
                        ;HEIGHT:0.2
                        M98 P"Print_gcodes/pressure_advance_at_layer_change.g"
                        G1 Z0.440 F7200.000
                        G10 S205 ; set temperature
                        G1 X160.200 Y169.800
                        ;TYPE:External perimeter
                        ;WIDTH:0.4
                        G1 F900.000
                        G1 X160.200 Y160.200 E0.28504
                        G1 X169.800 Y160.200 E0.28504
                        M73 P15 R2
                        G1 X169.800 Y169.800 E0.28504
                        G1 X160.260 Y169.800 E0.28325
                        G1 E-3.00000 F2400.000
                        G1 Z0.640 F7200.000
                        G1 X160.342 Y161.178
                        G1 Z0.440
                        G1 E3.00000 F2400.000
                        ;TYPE:Solid infill
                        ;WIDTH:0.456468
                        M73 P16 R2
                        G1 F3600.000
                        G1 X160.995 Y160.525 E0.03177
                        G1 X161.580 Y160.525 E0.02011
                        G1 X160.525 Y161.580 E0.05131
                        G1 X160.525 Y162.165 E0.02011
                        G1 X162.165 Y160.525 E0.07975
                        G1 X162.749 Y160.525 E0.02011
                        G1 X160.525 Y162.749 E0.10819
                        G1 X160.525 Y163.334 E0.02011
                        G1 X163.334 Y160.525 E0.13663
                        G1 X163.919 Y160.525 E0.02011
                        G1 X160.525 Y163.919 E0.16507
                        G1 X160.525 Y164.504 E0.02011
                        G1 X164.504 Y160.525 E0.19351
                        G1 X165.089 Y160.525 E0.02011
                        G1 X160.525 Y165.089 E0.22195
                        G1 X160.525 Y165.674 E0.02011
                        G1 X165.674 Y160.525 E0.25039
                        G1 X166.259 Y160.525 E0.02011
                        G1 X160.525 Y166.259 E0.27883
                        G1 X160.525 Y166.843 E0.02011
                        G1 X166.843 Y160.525 E0.30727
                        G1 X167.428 Y160.525 E0.02011
                        G1 X160.525 Y167.428 E0.33572
                        M73 P17 R2
                        G1 X160.525 Y168.013 E0.02011
                        G1 X168.013 Y160.525 E0.36416
                        G1 X168.598 Y160.525 E0.02011
                        G1 X160.525 Y168.598 E0.39260
                        G1 X160.525 Y169.183 E0.02011
                        G1 X169.183 Y160.525 E0.42104
                        G1 X169.475 Y160.525 E0.01006
                        G1 X169.475 Y160.817 E0.01005
                        G1 X160.817 Y169.475 E0.42104
                        G1 X161.402 Y169.475 E0.02011
                        G1 X169.475 Y161.402 E0.39260
                        G1 X169.475 Y161.987 E0.02011
                        G1 X161.987 Y169.475 E0.36416
                        G1 X162.572 Y169.475 E0.02011
                        G1 X169.475 Y162.572 E0.33572
                        M73 P18 R2
                        G1 X169.475 Y163.157 E0.02011
                        G1 X163.157 Y169.475 E0.30728
                        G1 X163.741 Y169.475 E0.02011
                        G1 X169.475 Y163.741 E0.27884
                        G1 X169.475 Y164.326 E0.02011
                        G1 X164.326 Y169.475 E0.25040
                        G1 X164.911 Y169.475 E0.02011
                        G1 X169.475 Y164.911 E0.22196
                        G1 X169.475 Y165.496 E0.02011
                        G1 X165.496 Y169.475 E0.19352
                        G1 X166.081 Y169.475 E0.02011
                        G1 X169.475 Y166.081 E0.16507
                        G1 X169.475 Y166.666 E0.02011
                        G1 X166.666 Y169.475 E0.13663
                        G1 X167.250 Y169.475 E0.02011
                        G1 X169.475 Y167.250 E0.10819
                        G1 X169.475 Y167.835 E0.02011
                        G1 X167.835 Y169.475 E0.07975
                        G1 X168.420 Y169.475 E0.02011
                        G1 X169.475 Y168.420 E0.05131
                        G1 X169.475 Y169.005 E0.02011
                        G1 X168.822 Y169.658 E0.03178
                        M106 S127.5
                        

                        They are completely different from each other.....

                        A Former User? achrnundefined 2 Replies Last reply Reply Quote 0
                        • A Former User?
                          A Former User @A Former User
                          last edited by

                          @the_dragonlord Here's what happens:

                          https://youtu.be/gVyKdpvdzXg

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                          • achrnundefined
                            achrn @A Former User
                            last edited by

                            @the_dragonlord said in How to make Prusa Slicer work:

                            They are completely different from each other.....

                            They aren't expected to be the same.

                            Also, I note your Prusa example has a skirt, apparently with curves at the corners, so that muddies the waters. There's also reference to pressure advance in teh code, but I don't think that's more than a red herring.

                            Your ideamaker cube has this:

                            G0 F9000 X155.292 Y155.292
                            ;TYPE:WALL-OUTER
                            ;WIDTH:0.585
                            ...
                            G1 F2400 X164.708 Y155.292 E0.6321
                            G1 X164.708 Y164.708 E0.6321
                            G1 X155.292 Y164.708 E0.6321
                            G1 X155.292 Y155.292 E0.6321
                            

                            So that is simple squares, the nozzle moving 9.416mm to a side and using 0.6321mm of filament. That's 0.161mm2 extrusion.

                            The Prusaslicer cube has this

                            G1 X160.200 Y169.800
                            ;TYPE:External perimeter
                            ;WIDTH:0.4
                            ...
                            G1 X160.200 Y160.200 E0.28504
                            G1 X169.800 Y160.200 E0.28504
                            ...
                            G1 X169.800 Y169.800 E0.28504
                            G1 X160.260 Y169.800 E0.28325
                            

                            So that is simple square, the nozzle moving 9.600mm to a side and using 0.28504mm of filament. That's only 0.072mm2 extrusion

                            The comments say the Prusa is a thinner wall, but only 10% thinner. Pro-rata both to 0.45 thick would bring the Prusa up to 0.0805mm2.

                            So the Prusa is delivering half as much filament (curiously, exactly half as much) for some reason. However, I'm suspicious that the Prusa is delivering what it should - a 0.4 x 0.2 mm extrusion should be 0.4x0.2=0.08mm2. Have you, long ago, put some correction factor into the other slicers for some reason?

                            With a factor of exactly two I'd start to wonder if a 400 step stepper was swapped for a 200, and 'fixed' by putting an extrusion multiplier in? As per previous poster's suggestion, I'd go back and check calibration and configuration of the extrusion hardware from fresh, but you didn't like that suggestion.

                            achrnundefined A Former User? 2 Replies Last reply Reply Quote 1
                            • achrnundefined
                              achrn @achrn
                              last edited by achrn

                              @achrn said in How to make Prusa Slicer work:

                              G0 F9000 X155.292 Y155.292
                              ;TYPE:WALL-OUTER
                              ;WIDTH:0.585
                              ...
                              G1 F2400 X164.708 Y155.292 E0.6321
                              G1 X164.708 Y164.708 E0.6321
                              G1 X155.292 Y164.708 E0.6321
                              G1 X155.292 Y155.292 E0.6321
                              

                              So that is simple squares, the nozzle moving 9.416mm to a side and using 0.6321mm of filament. That's 0.161mm2 extrusion.

                              Aha, but I've just noticed that further down it has

                              0 F900 Z0.500
                              G0 F9000 X155.225 Y155.225
                              ;TYPE:WALL-OUTER
                              ;WIDTH:0.450
                              G1 F600 X164.775 Y155.225 E0.3288
                              G1 X164.775 Y164.775 E0.3288
                              G1 X155.225 Y164.775 E0.3288
                              G1 X155.225 Y155.225 E0.3288
                              

                              Which is much closer to the Prusa case. I don't jknow what that slicer is doing there. I still think teh GCode from Prusa is calling for about teh right amount of material.

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                              • A Former User?
                                A Former User @achrn
                                last edited by

                                @achrn said in How to make Prusa Slicer work:

                                @the_dragonlord said in How to make Prusa Slicer work:

                                They are completely different from each other.....

                                They aren't expected to be the same.

                                Also, I note your Prusa example has a skirt, apparently with curves at the corners, so that muddies the waters. There's also reference to pressure advance in teh code, but I don't think that's more than a red herring.

                                Your ideamaker cube has this:

                                G0 F9000 X155.292 Y155.292
                                ;TYPE:WALL-OUTER
                                ;WIDTH:0.585
                                ...
                                G1 F2400 X164.708 Y155.292 E0.6321
                                G1 X164.708 Y164.708 E0.6321
                                G1 X155.292 Y164.708 E0.6321
                                G1 X155.292 Y155.292 E0.6321
                                

                                So that is simple squares, the nozzle moving 9.416mm to a side and using 0.6321mm of filament. That's 0.161mm2 extrusion.

                                The Prusaslicer cube has this

                                G1 X160.200 Y169.800
                                ;TYPE:External perimeter
                                ;WIDTH:0.4
                                ...
                                G1 X160.200 Y160.200 E0.28504
                                G1 X169.800 Y160.200 E0.28504
                                ...
                                G1 X169.800 Y169.800 E0.28504
                                G1 X160.260 Y169.800 E0.28325
                                

                                So that is simple square, the nozzle moving 9.600mm to a side and using 0.28504mm of filament. That's only 0.072mm2 extrusion

                                The comments say the Prusa is a thinner wall, but only 10% thinner. Pro-rata both to 0.45 thick would bring the Prusa up to 0.0805mm2.

                                So the Prusa is delivering half as much filament (curiously, exactly half as much) for some reason. However, I'm suspicious that the Prusa is delivering what it should - a 0.4 x 0.2 mm extrusion should be 0.4x0.2=0.08mm2. Have you, long ago, put some correction factor into the other slicers for some reason?

                                With a factor of exactly two I'd start to wonder if a 400 step stepper was swapped for a 200, and 'fixed' by putting an extrusion multiplier in? As per previous poster's suggestion, I'd go back and check calibration and configuration of the extrusion hardware from fresh, but you didn't like that suggestion.

                                Thanks for your answer, in Ideamaker I haven't made any adjustment on the stepper steps/mm or some kind of multiplier...It not I didn't liked the suggestion, it's that they are all steps that I've made right now and I'm sure that in Ideamaker I have no firmware overrides about step/mm or so on...I've just made several thin wall tests to get the exact extrusion multiplier for all my filaments....I really don't know what's happening....even with Simplify3D it all gone well...only with PS there are problems...

                                gloomyandyundefined 1 Reply Last reply Reply Quote 0
                                • gloomyandyundefined
                                  gloomyandy @A Former User
                                  last edited by

                                  @the_dragonlord How did you tune your extruder steps/mm set in config.g? If it involved something that used your slicer you may have in effect tuned for that. What value do you have set for steps/mm in your config.g file and what extruder are you using?

                                  A Former User? 1 Reply Last reply Reply Quote 0
                                  • A Former User?
                                    A Former User @gloomyandy
                                    last edited by

                                    @gloomyandy said in How to make Prusa Slicer work:

                                    @the_dragonlord How did you tune your extruder steps/mm set in config.g? If it involved something that used your slicer you may have in effect tuned for that. What value do you have set for steps/mm in your config.g file and what extruder are you using?

                                    415 step/mm, original bondtech BMG

                                    gloomyandyundefined 1 Reply Last reply Reply Quote 0
                                    • gloomyandyundefined
                                      gloomyandy @A Former User
                                      last edited by

                                      @the_dragonlord Assuming that has a standard 1.8 degree stepper (does it?), that sounds fine.

                                      A Former User? 1 Reply Last reply Reply Quote 0
                                      • A Former User?
                                        A Former User @gloomyandy
                                        last edited by

                                        @gloomyandy said in How to make Prusa Slicer work:

                                        @the_dragonlord Assuming that has a standard 1.8 degree stepper (does it?), that sounds fine.

                                        it sound because it is fine 😊 with other slicers I have no problems

                                        engikeneerundefined 1 Reply Last reply Reply Quote 1
                                        • Phaedruxundefined
                                          Phaedrux Moderator
                                          last edited by

                                          Is the first layer height the same? Same width and flow rate?

                                          Z-Bot CoreXY Build | Thingiverse Profile

                                          A Former User? 1 Reply Last reply Reply Quote 0
                                          • engikeneerundefined
                                            engikeneer @A Former User
                                            last edited by

                                            @the_dragonlord I've used PS for years with issues so am slightly perplexed by your issue!

                                            One thought - are the filament/printer/print profiles that you're editing the ones that PS is using to slice the file? I.E. Do these:
                                            0ffc7ef2-16b8-4b61-9067-e43e90d5bf4f-image.png

                                            Match these:
                                            df99b43b-bdf8-4f41-a5d0-3d1b1ea2084f-image.png

                                            Could simply be that you're actualy slicing with one of the default 2.85mm profiles?

                                            Failing that, if you can export your config from PS (File, Export, Export config), post it here and I can try it on mine to see what's up. Might need to rename the filetype to .txt to upload it to the forum

                                            E3D TC with D3Mini and Toolboards.
                                            Home-built CoreXY, Duet Wifi, Chimera direct drive, 2x BMG, 300x300x300 build volume
                                            i3 clone with a bunch of mods

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