Prusa Mini Orbiter Extruder install & Review

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I wanted to add a direct-drive extruder to my Prusa Mini... so I did. The Orbiter works very well in this role, but it cannot print TPU in its current iteration. Still, it's a great upgrade to the Prusa Mini, and pretty easy to install.

The mount replaces Prusa's existing fan spacer, adding a platform to the top of it to put the orbiter on.

I've posted the STL for the mount over on Thingiverse:
https://www.thingiverse.com/thing:4807085


To mount, you need:
2 M3x10mm flat-head screws - to mount the orbiter to the mount
2 M3 nuts - to mount the orbiter to the mount
1 M3x10mm screw - to hold the mount onto the mini's heatsink
56mm of 4mm PTFE or Capricorn tubing - the length needs to be adjusted pretty exactly.

I also used crimpers and made up a locking 4-pin plug for the orbiter, and zip ties to hold the wires together.

In my Mini's start gcode, I've added:
M92 E655 ; set E steps per mm for the Orbiter extruder
M906 E300 ; set the extruder to 300ma for the Orbiter extruder. 350 is the default, can bump up as needed.
M900 K0.03 ; set the linear advance for the Orbiter


PrintShift is open source - Build your own and help support the project!
https://www.patreon.com/PrintShift

Project GitHub - make your Mini a proper factory!
https://github.com/paenian/Delta-Conveyor-Belt/tree/master/prusa%20mini
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