I built my Mendel90 "Sturdy" (1/2" MDF frame) a few years ago. Had a couple of upgrades since then, including a more easily adjustable belt tensioner for the "Y" carriage, and an E3D-V6 hotend. I am now considering switching to a dual extruder system, and I rather like the E3D "Chimera". Anyone here installed a Chimera on their Mendel90? If so, did you do your own re-designing of the "X" carriage? How did you mount the Bowden extruders, and what do you do for spool holders?

Also, I am looking for someone who has already done so (possibly on the standard Mendel90 carriages) to modify the "Sturdy" carriage STL to fit a Chimera, if possible - I never did understand OpenScad (or any other CAD software, for that matter... ).

Thanks!

Anybody? Nobody?

E3D used to run Mendel90 themselves, so they may have a carriage design.

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[www.hydraraptor.blogspot.com]

Found out they did, but it was not meant for LM10UU bearings. STL files only, so I don't know if they can be modified (and I wouldn't know how, even if they can be modified): Chimera/Cyclops carriage for Mendel90 - Thingiverse

You could try asking them for the OpenScad source file as I expect they modified that rather than completely remodelling it.

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[www.hydraraptor.blogspot.com]