Steps per mm in Cura

[DonaldNaegele 0]

Hi.

 

I’m trying to change the steps per mm in Cura for my Monoprice Ultimate printer.

 

Where is that setting? I have 3.1.1for Mac.

 

Thanks in advance. 

 

Don

[yellowshark 153]

Hi my Cura is older than 3.1.1 but I think you will find this in the firmware not in Cura - it certainly is in my non UM printer 

[DonaldNaegele 0]

Sounds too complicated for me :(

 

thanks 

[AirBronto 8]

Hey, it looks like you're making progress!  Calculating extruder steps seems further along than you were a week ago.

 

I've been on Marlin for a while, but I don't believe the original Monoprice firmware even had a section where you could update the e-steps.  The guides you've found most likely assume you're running some flavor of Marlin, so the GCODE steps they suggest won't work (you can't send M92 to the stock Monoprice firmware and have anything happen).

 

Instead of calculating the extruder steps it's a lot easier to just modify the flow rate in Cura.  Run the extruder test (mark your filament at 120mm, extrude 100mm of filament, see how much is left, etc), and then calculate your flow rate from that (100 / actual amount extruded = flow rate in decimal [multiply by 100 for %]).  Or even better, just print a solid calibration cube with 100% infill, measure it, and tweak flow rate up or down until the cube's dimensions are dead on.

[MarkF 2]

Take a look at this video:   

   If your printer uses Marlin firmware, he is showing how to adjust it's settings.  If you're unable to change them from the control panel, you will need to download the firmware, make the settings and flash the new firmware into your printer.

   In alternatively, he shows at timestamp 4:10 how to change the scaling in Cura.  Which is what I think you are asking.

   There are many other videos showing this procedure.  

 

 

[yellowshark 153]

Hi, I have not seen the other thread(s) on this...... but modifying the flow is unlikely to fix dimensional error unless it is very very small I suppose, no real idea, never tried it. If you print a 100mm line and your steps are under by 10% then that line will be 90mm thereabouts and flow will not fix that!

Edited May 10, 2018 by yellowshark

[AirBronto 8]

2 hours ago, yellowshark said:

Hi, I have not seen the other thread(s) on this...... but modifying the flow is unlikely to fix dimensional error unless it is very very small I suppose, no real idea, never tried it. If you print a 100mm line and your steps are under by 10% then that line will be 90mm thereabouts and flow will not fix that!

 

Good point, whenever someone says steps per mm I'm assuming they mean extruder steps per mm.  I guess if their X-Y stepper steps per mm were off then this suggestion wouldn't help, but I have the same printer as @DonaldNaegele and I've never heard of the X-Y steppers being off (mine were perfect out of the box).

[Nelstone1 0]

Go to machine settings for your printer, then in the start Gcode add the line "M92 EXXX.XXXX" where X is the calculated steps