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Thursday, July 02, 2009

No-lathe extruder interior

Some were a little puzzled as to how the interior of the no-lathe extruder works. As I'm putting a few together, I took a photo showing how it combines the ideas of a simple locknut thrust bearing and a chopped-up drilled nut being used as the bearing behind the filament contact point. Files now online at http://www.thingiverse.com/thing:765.

Vik :v)

5 comments:

  1. Nice work vik!

    I'll have to try this one out

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  2. I've got a half-hearted attempt at an interrupt-driven speed controller firmware for a single opto endstop as a speed controller.

    http://sites.google.com/site/renoirsrants/reprap/software-i-use

    It works for the BitsFromBytes encoder wheel : it probably needs some tweaking for the timings for this version.

    It's not currently tested properly but appears to work on my system.

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  3. I don't think you pinched the lock nut thrust bearing idea from me. I have never used or advocated one. Infact, you blogged it here in 2005, before I had heard of RepRap.
    blog.reprap.org/2005/06/bolt-based-polymorph-pusher-mkii. More expensive, but still no lathe, and will last a lot longer.

    The closest thing I have used is a ball bearing between two nuts for thrust and two acting as rollers at the pressure point. hydraraptor.blogspot.com/2009/04/dinosaur

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  4. Brane fale.

    Sorry about that. I've edited it out.

    Vik :v)

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  5. And typing fail on my front. The "More expensive ..." comment should be at the end of course.

    Shame these comments can't be edited!

    ReplyDelete