Extruder calibration problem
I am new on this forum and I hope to get some tips for setting up my upgraded printer, as well as sharing my experiences with you and helping each other.
I upgraded my Creality CR-10 with a Duet 3 mainboard. The configuration is as follows:
- 24V for Duet 3 and steppers, two Z steppers in parallel
- 12V hotend at Out_0 (original)
- 12V heated bed with external MOSFET connected to Out_1 (original)
Setting up the parameters with the RRF Config Tool was quite comfortable but I still have problems with my extruder configuration. From the beginning it was set to 6984,63 steps/mm.
Therefore, I measured my extruder cog wheel (11 mm) and calculated the appropriated rate according to microstepping rate: 200 steps * 256 microsteps / (11 mm * Pi) = 1481.59 steps/mm.
To verify my calculation I googled the original value from Creality. They chose 93 steps/mm with a microstepping of 16. 93 steps/mm * 16 = 1488 steps/mm. Thus, my calculation was correct.
Unfortunately the Printer prints nearly nothing with this rate and I can not figure out where could be the fault in the calculation.
Has someone an idea where this problem comes from?
@boxprinter Please post your config.g and send M115 to the printer and post the response (shows the firmware version). What slicer are you using? Make sure that any start gcode in the slicer isn't changing the steps per mm.
Thank you very much for your answers!
I don't know why but my Slicer settings were set to 2.85 mm filaments instead of 1.75 mm......
Now my calculation is a good approximation. I only have to fine tune the feed rate.
@droftarts I am using Cura, but not yet the latest version. I will check what you suggested.
@Veti OK, but why? I will try it nevertheless because I now have the problem that the printer stops moving during a print and does not react any more. With M122 I got:
Tasks: NETWORK(ready,456) HEAT(blocked,1136) CanReceiv(suspended,3804) CanSender(suspended,1472) CanClock(blocked,1416) TMC(blocked,72) MAIN(running,3468) IDLE(ready,200)
So the Duet thinks the nozzle is clogged? Is this the reason why to use x16 for the extruder?
@droftarts Maybo not so important any more since the changes:
M115 FIRMWARE_NAME: RepRapFirmware for Duet 3 MB6HC v0.6 or 1.0 FIRMWARE_VERSION: 3.0beta12 ELECTRONICS: Duet 3 MB6HC FIRMWARE_DATE: 2019-11-02b1
But I know that I schould update the firmware. I just finished the cabeling today.
@Veti Would x128 for XY, x64 for Z and x16 for E be ok? Say for ~ 120 mm/s
start with x16 and interpolation.
once you have your printer up and running, then you can experiment with other values.
Veti last edited by Veti
@Veti Unfortunately I do not seem to be able to update via the Web interface.
Under Settings, I upload the new binary file and I get asked if I want to update.
Then this message appears:
M997 S0 Firmware binary "Duet3Firmware_MB6HC.bin" not found
But when I go to the System Editor Tab I can clearly see the file.
It did not work either.
you might have to go to 3.0 first
and then upload
and then try 3.1.1 again
Unfortunately also nothing. Should I try the USB methode?
yes probably easiest to do the bossa restore
See here for instructions on updating from Beta12
boxprinter last edited by boxprinter
This came to late, I already upgraded via Bossa.
M115 FIRMWARE_NAME: RepRapFirmware for Duet 3 MB6HC FIRMWARE_VERSION: 3.1.1 ELECTRONICS: Duet 3 MB6HC v0.6 or 1.0 FIRMWARE_DATE: 2020-05-19b2
Everything seems to be ok now with the exception, that my PanelDue 5i does not communicate with the Duet 3 any more. I thus also updated it with Bossa from v1.23.2 to v1.24 but it stil does not work.
Is there any possibility to choose which four macros are displayed on the control page?
Yes. Macros in the root of the Macros folder will show up in the short list of 4 on the PanelDue. You can use a prefix number to sort them how you wish.
0_preheat 1_center nozzle 2_turn heaters off 3_etc etc
the prefix will then be hidden.