MakerBot Print is our newest print-prepration software, which supports native CAD files and STL assemblies,
allows you to interact with all your printers via the Cloud, and many other exciting new features.

Download Now

Report as inappropriate

Thanks for posting your settings. Yes, one of the four holes is covered too much to be usable, but some people reported three holes to be enough to hold the stepper motor.

If you cannot see the second part of the idler v2, please try to disable idler v1 by using //
// translate([20, 0, 0])
// idler_608_v1();
One part of idler v2 has exact the same position as idler v1 and therefore is covered by its "ancestor".

The whole extruder hasn't been designed for these large combination of MK7 and 3mm filament due to being compact was a main goal.

I'm looking forward to seeing your remix suitable for MK7 and 3mm filament.