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Unsecured/unstabilized Bowden extruder?

Posted by qrp-gaijin 
Unsecured/unstabilized Bowden extruder?
May 07, 2021 04:07AM
I'm seriously considering changing my Portabee (a Printrbot variant) with a direct-drive extruder, into a Bowden setup.

It looks like the simplest way of doing this is simply to unmount the motor from the X-carriage, leaving only the hot-end on the X-carriage.

The question, then, is if and how to secure the unmounted motor. I saw one Printrbot conversion to a Bowden setup here: [www.thingiverse.com].

As you can see, the drive motor and drive mechanism for the filament appear to be completely unsecured, simply being laid in some location on the table.

Is this an acceptably-stable arrangement for a Bowden setup?
Re: Unsecured/unstabilized Bowden extruder?
May 07, 2021 07:20AM
Its fine, the bowden cable is a fixed length so it works.It doesn't care if motor end is secured to anything or not
Re: Unsecured/unstabilized Bowden extruder?
May 17, 2021 03:02PM
You could do like is done on the delta printers and attach it to some location on the frame like this on my HE3D printer. That will prevent it shifting around and possibly having the gears catch on something.
open | download - 20210517_134601-small.jpg (686.5 KB)
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