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Slow all the time at 2000% speed

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Tuning and tweaking
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  • undefined
    Jbourns @oliof
    last edited by 10 Oct 2021, 21:00

    @oliof Im using prusa slicer!Capture.PNG

    this is what i have in the speed settings.

    1 Reply Last reply Reply Quote 0
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      jens55
      last edited by 10 Oct 2021, 21:02

      How do you test maximum speed? do you just run a model? If you run a model, what are the slicer settings for max speed, acceleration and jerk.

      You could take the slicer variable out of the equation and just use a quick hand written macro such as :
      G1 X000 Y000 F50000
      G1 X000 Y300
      G1 X300 Y300
      G1 X300 Y000

      Adjust the F parameter to suit what you want the machine to do
      Adjust the coordinates based on what your printer bed size is.

      undefined 1 Reply Last reply 10 Oct 2021, 21:06 Reply Quote 0
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        Jbourns @jens55
        last edited by Jbourns 10 Oct 2021, 21:32 10 Oct 2021, 21:06

        @jens55 By printing things usually dialing up with macros. But nothing is increasing the speed at all, it'll go slower.
        right now i dont care for setting the proper speeds. I just want to go faster than 25mm/s 2000% speed should have done something.

        Should the print speed in dwc override what the slicer?

        undefined 1 Reply Last reply 10 Oct 2021, 21:43 Reply Quote 0
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          engikeneer @Jbourns
          last edited by 10 Oct 2021, 21:43

          @jbourns what firmware flavour do you have set in PrusaSlicer? Should be Reprap.
          If you leave it in Marlin, it puts a bunch of max speed commands in the start code in the Marlin units, so you end up 60x too slow

          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

          undefined 1 Reply Last reply 10 Oct 2021, 21:51 Reply Quote 0
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            Jbourns @engikeneer
            last edited by 10 Oct 2021, 21:51

            @engikeneer Its set to reprap/sprinter

            1 Reply Last reply Reply Quote 0
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              PaulHew
              last edited by 10 Oct 2021, 23:27

              How big and what are you trying to print?
              If it is small and complex it might not be able to get up to speed.
              When I print Pi cases my infill is going at 130mm/s. 3 perim, 3 top and bottom.

              Got an stl?

              RailCore II - Duet Mini + 1LC, Voron V0.1 - Duet Mini
              Voron 2.4 disassembled..... Waiting for the RailCore Mini....

              undefined 1 Reply Last reply 10 Oct 2021, 23:43 Reply Quote 0
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                Jbourns @PaulHew
                last edited by Jbourns 10 Oct 2021, 23:46 10 Oct 2021, 23:43

                @paulhew Its 38 x 45mm. I just don' t get why it wont increase in speed at all from DWC. I've always been able to crank it up to suit my needs. Now I'm stuck with a 6 hour print when it should have been done in 20min

                fixture.stl

                undefined 1 Reply Last reply 10 Oct 2021, 23:49 Reply Quote 0
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                  PaulHew @Jbourns
                  last edited by 10 Oct 2021, 23:49

                  @jbourns This is my speeds config for a RailCore

                  M350 X16 Y16 Z16 E16 I1 ; configure microstepping with interpolation
                  ;
                  M92 X200.00 Y200.00 ; set steps per mm
                  M92 Z1600 ; set steps per mm Z Axis
                  M92 E412 ; set steps per mm Extruder
                  ;
                  M566 X600.00 Y600.00 Z200.00 E3600.00 ; set maximum instantaneous speed changes (mm/min)
                  M203 X18000.00 Y18000.00 Z900.00 E3600.00 ; set maximum speeds (mm/min)
                  M201 X1500.00 Y1500.00 Z250.00 E1500.00 ; set accelerations (mm/s^2)
                  M906 X1280 Y1280 Z1220 E700 I30 ; set motor currents (mA) and motor idle factor in per cent

                  My E speeds are higher.
                  I run a BMG Extruder with a mosquito hotend.

                  I will give you part a run later, nearly 1am here in the UK.

                  RailCore II - Duet Mini + 1LC, Voron V0.1 - Duet Mini
                  Voron 2.4 disassembled..... Waiting for the RailCore Mini....

                  undefined 1 Reply Last reply 10 Oct 2021, 23:55 Reply Quote 0
                  • undefined
                    PaulHew
                    last edited by 10 Oct 2021, 23:54

                    Also, in PS, filament tab, what is your max volumetric speed?
                    That can play a major part in speed.

                    RailCore II - Duet Mini + 1LC, Voron V0.1 - Duet Mini
                    Voron 2.4 disassembled..... Waiting for the RailCore Mini....

                    undefined 2 Replies Last reply 10 Oct 2021, 23:57 Reply Quote 0
                    • undefined
                      Jbourns @PaulHew
                      last edited by 10 Oct 2021, 23:55

                      @paulhew I'll give those a go, Thanks for the help. I'll be testing them in the next hour once this part is printed.

                      undefined 1 Reply Last reply 10 Oct 2021, 23:56 Reply Quote 0
                      • undefined
                        PaulHew @Jbourns
                        last edited by 10 Oct 2021, 23:56

                        @jbourns 👍

                        RailCore II - Duet Mini + 1LC, Voron V0.1 - Duet Mini
                        Voron 2.4 disassembled..... Waiting for the RailCore Mini....

                        1 Reply Last reply Reply Quote 0
                        • undefined
                          Jbourns @PaulHew
                          last edited by 10 Oct 2021, 23:57

                          @paulhew It's at 0 which is default so I assume that's off?

                          undefined 1 Reply Last reply 11 Oct 2021, 00:05 Reply Quote 0
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                            PaulHew @Jbourns
                            last edited by 11 Oct 2021, 00:05

                            @jbourns I found this for calculating Volumetric speed.
                            https://docs.google.com/spreadsheets/d/1ZHSRzTm2AR_sXnLSSOq2NSmx0UYtF5bJKHUSFWiDscA/edit#gid=0

                            RailCore II - Duet Mini + 1LC, Voron V0.1 - Duet Mini
                            Voron 2.4 disassembled..... Waiting for the RailCore Mini....

                            undefined 1 Reply Last reply 11 Oct 2021, 00:17 Reply Quote 0
                            • undefined
                              Jbourns @PaulHew
                              last edited by 11 Oct 2021, 00:17

                              @paulhew 10mm/3 seems like a good middle ground for the volcano

                              1 Reply Last reply Reply Quote 0
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                                Jbourns @PaulHew
                                last edited by 11 Oct 2021, 01:34

                                @paulhew The only explanation is that im a daft prick. I think i fugged up my E speeds ands acceleration at some point. Doesn't explain why I couldn't just override it.
                                https://youtu.be/tr7fGtmQUk8

                                undefined 1 Reply Last reply 11 Oct 2021, 14:04 Reply Quote 1
                                • undefined
                                  dc42 administrators
                                  last edited by 11 Oct 2021, 06:27

                                  @jbourns the speed multiplier will override the speeds requested in the F parameter of G1/2/3/4 commands, but not the machine speed limits set by M203.

                                  Duet WiFi hardware designer and firmware engineer
                                  Please do not ask me for Duet support via PM or email, use the forum
                                  http://www.escher3d.com, https://miscsolutions.wordpress.com

                                  1 Reply Last reply Reply Quote 0
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                                    alankilian @Jbourns
                                    last edited by 11 Oct 2021, 14:04

                                    @jbourns YEAH!!!

                                    Thanks for keeping us in the loop and letting us know when you figured it out.

                                    SeemeCNC Rostock Max V3 converted to V3.2 with a Duet2 Ethernet Firmware 3.2 and SE300

                                    1 Reply Last reply Reply Quote 0
                                    • undefined
                                      Jbourns
                                      last edited by 11 Oct 2021, 23:06

                                      It was either volumetric flow in prusa slicer or max speed in the config

                                      undefined 1 Reply Last reply 12 Oct 2021, 06:52 Reply Quote 1
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                                        JoergS5 @Jbourns
                                        last edited by 12 Oct 2021, 06:52

                                        @jbourns trying a different slicer and then testing 2000% let's you decide whether the problem is in the slicer region or in the config/dwc region.

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