Mpmd_marlin_1.1.x Alternatives

mpmd_marlin_1.1.x reviews and mentions

• Two Prints, Same Settings, Totally Different Outcomes
  1 project | /r/mpminidelta | 1 Feb 2022

  After you address whatever hardware problems you have, you need to run a software calibration, most easily done by flashing mpmd_marlin_1.1.x. The bed clip upgrade is intended to improve bed switch activation pressure consistency. G29 bed mesh and hardware tweaks are not a substitution for running delta calibration.

• Can one upgrade the V1 by swapping in the V2 main board? Is there better bang for your buck?
  1 project | /r/mpminidelta | 20 Jan 2022

  Have you tried mpmd_marlin_1.1.x firmware on the stock board? That will do as much as any mainboard swap could do for the specific issues you have mentioned, but you will eventually start hitting other hardware limitations. e.g., power supply, bed hole cover, machine alignment (for dimensional accuracy distortions), etc. You will still need to calibrate your machine (covered on the github page) for dimensional accuracy. There is no magic shortcut for that.

• My moon price mini delta i am having problems. It might be the temp that won’t stay at a constant temperature it ranges from 200-210 I have it set to 205
  1 project | /r/3Dprinting | 19 Dec 2021
• Resurrecting a mothballed printer
  1 project | /r/mpminidelta | 9 Dec 2021

  Upgrading the firmware to mpmd_marlin_1.1.x can remove a lot of software weirdness and it has better calibration routines. Someone else mentioned putting regular Marlin on there, but I think the one I linked has more calibration options.

• I was trying to calibrate the print bed, which was causing the print head to scrape in about 1/3rd of the tray. Now, whenever the head returns to the top, this happens. Any help figuring out what went wrong or how to fix it would be massively appreciated.
  1 project | /r/mpminidelta | 15 Oct 2021

  All of the options for software calibration on stock firmware involve a lot of steps...tons of ways to make mistakes. mpmd_marlin_1.1.x firmware makes calibration a lot easier.

• Does USB work properly in Linux?
  1 project | /r/mpminidelta | 13 Sep 2021

  That's a great point, thank you for bringing that up. I was planning on doing the delta calibration with the script, but this would sure make things easier. I think this would also indirectly fix my issue because as I mentioned in the other thread on this post, the motion controller firmware is actually what's in charge of the USB serial communication (for example, you can see all the USB-related files in https://github.com/aegean-odyssey/mpmd_marlin_1.1.x/tree/master/stm32f0xx). I've been kind of afraid to mess with the firmware, but it looks like either way I will need to flash some new firmware to get my USB working properly with Linux. I will check it out. Thanks!

• Having issues with setting Z offset to account for new nozzle
  1 project | /r/mpminidelta | 19 Jul 2021

  Regardless, I think your problem can be solved by going through the entire Quick-Start Guide, starting with Step 2 (calibration) and ending with using the recommended Start Gcode. That will include a memory wipe, delta calibration, bed leveling mesh, and z-offset. The recommended Start Gcode has the correct G29 P0 setting for doing a single probe to compensate for height differences (like your new nozzle).

• My CURA crashed, taking with it my profile settings (I had backups so It was fine, I'm just 2 weeks behind) but now the first layer is underextruding and has gaps in between the lines. Does this have to do with the Z gap being reset to default? (0.28 vs 0.45) [spaghetti not pictured]
  1 project | /r/mpminidelta | 3 May 2021

  If you are running mpmd_marlin_1.1.x, then your z-offset should not have been in your Start Gcode in the first place. If you are on that firmware, just go ahead and redo Quick-Start Steps 2-4 to recalibrate and setup firmware-specific Start Gcode.

• Trying to set up octoprint, I have the server running and have downloaded the plug in for the hot fix, but it still won't recognize the serial port when I try to connect.
  1 project | /r/mpminidelta | 26 Apr 2021

  Workarounds: For stock firmware, you can use the built-in WiFi instead of a USB connection (M503 does not work and I would only use this for calibration - not printing). For mpmd_marlin_1.1.x firmware, you can do full calibrations by just putting the gcode commands in a file, saving it as a *.gcode file, and printing it, as demonstrated in its Quick-Start Guide.

• Bed only heating to max 46 degrees, wanting to print PETG, any tips? I have pronterface set up and was wondering if it had to do with the heating values
  3 projects | /r/mpminidelta | 20 Apr 2021

  This is covered on the mpmd_marlin_1.1.x FAQs page, but here is a direct link: https://github.com/aegean-odyssey/mpmd_marlin_1.1.x/wiki/Pronterface-Tips

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