Cold-end Extruder which works great



  • Hi guys,

    just want to share this thing for the ones that don't know it yet:

    A belt friction extruder:
    http://www.thingiverse.com/thing:1247952

    We are using it now on many printers and with normal PLA 1.75mm getting printspeeds over 120mm/s on the delta's with volcano and 1.0mm nozzle.
    With PRO1 from inofill we get 150mm/s easy without loosing quality.

    We are also using spools of 20kg which he can unroll without any support motor. Really a strong very strong way of extrusion.

    Also you won't have any stipped filament anymore… only once in a while you need to change a belt.
    The belts and 50T pulley are available from Motedis. We made some small changes in the original files. If you want those drop me a message.

    I am curious what you guys think of this cold-end extruder. It's not my design so the credits would be for andreasL.



  • that looks like it's going to cause a lot of bend stress on the filament, I reckon some filaments would snap with that much bend, especially older filaments



  • Hello
    I have tried the BONDTECH some months ago and love it since.
    This is more expensive but it works very well.
    ANTOINE



  • I liked the look of the vaeder v-struder http://forums.reprap.org/read.php?1,610779 but it was much hyped and then never really materialised but the idea is sound why pull filament through with tiny sharp teeth when a long section of belt is more effective. That being said I can't fault the titan, rock solid, so good I've stopped looking for a better product. Biggest spool I use is only 2.3kgs though.



  • @DjDemonD The Nimble is half the weight of a Titan 🙂



  • To the belt drive system, Old PLA…..snap snap snap. Nuff said.



  • @briangilbert:

    @DjDemonD The Nimble is half the weight of a Titan 🙂

    I know 🙂 and I'm eagerly awaiting mine to try it out.



  • @(In)Sanity:

    To the belt drive system, Old PLA…..snap snap snap. Nuff said.

    But that belt drive system features a fairly sharp (for filament) bend, perhaps it would work with a much straighter path and longer belts to grip the filament. The idea is sound perhaps the implementation can be improved.



  • @(In)Sanity:

    To the belt drive system, Old PLA…..snap snap snap. Nuff said.

    Yeah thats what I was thinking with my first comment.



  • @DjDemonD:

    @(In)Sanity:

    To the belt drive system, Old PLA…..snap snap snap. Nuff said.

    But that belt drive system features a fairly sharp (for filament) bend, perhaps it would work with a much straighter path and longer belts to grip the filament. The idea is sound perhaps the implementation can be improved.

    Yes I was thinking about a straight belt like approach just the other day, but I was thinking single sided belt not both sides.


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