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revilor / Marlin

Optimized firmware for RepRap 3D printers based on the Arduino platform.
http://www.marlinfw.org/
GNU General Public License v3.0
7 stars 1 forks source link

MMU2 Filament Length too Short #3

Closed dcwalmsley closed 5 years ago

dcwalmsley commented 5 years ago

MMU2 controlled from LCD panel. I load filament and was successfull. I then asked it to load to nozzle and it extended 425mm of filament down the PTFE tubing.

My current issue is how to get it to extend 570mm of PTFE tubing as I'm not using the supplied PRUSA orange (360mm) tubing and I need to be able to feed all the way to the direct drive.

Where should I look to make adjustment to feeding length?

~Doug

revilor commented 5 years ago

This has to be done in the MMU, see https://prusa3d.com/downloads/manual/prusa3d_manual_mmu2_eng_1_03.pdf page 15ff

dcwalmsley commented 5 years ago

Thanks. I will attempt this tomorrow after work.

On January 14, 2019 20:06:07 revilor notifications@github.com wrote:

This has to be done in the MMU, see https://prusa3d.com/downloads/manual/prusa3d_manual_mmu2_eng_1_03.pdf page 15ff — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub, or mute the thread.

dcwalmsley commented 5 years ago

@revilor,

After looking through your comments and doing a bit more search, I came across one of the authors (Ruud Rademaker - https://github.com/ruedli/MM-control-01/tree/load_reload_using_bowdenlength ) for the update to v1.0.3. He submitted and is now part of the latest version of the MMU firmware the ability to calibrate up to 792mm which is more than enough for me to finish my calibration. I also pinged him to see if his faster feed and retraction speeds are also part of Pursa's release. With a longer PTFE tubing, speeding up the loading and unloading will cut down on print time when performing multiple material printing.

Thanks again for pointing me in the right direction.

dcwalmsley commented 5 years ago

Closing this as I have the latest MMU firmware installed and it is allowing me to calibrate the feed length for my printer setup. Thank you for your support.