An extruder and hotend made specifically for flexible filaments - but could it be

3D Printing
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An extruder and hotend made specifically for flexible filaments - but could it be over-optimized for regular use?
http://www.youtube.com/watch?v=I0kFA9OIJL0

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interesting mechanism to clean the hobbed wheel

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Excellent review!

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@Marcus_Wolschon hat that on my first printer. Was a pink toothbrush on the hobbed bolt/drive screw. Worked fine and held a looooong time :wink: this is cool but a) never had a problem with this kind of screw on my own designed extruder and b) on flexible filament never had any tear of the filament so i dont get it lol

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@VolksTrieb
Thanks for the assessment.

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I find that the main thing that makes a given extruder work better with flexible is to have a PTFE guide tube snug (with no chuck or very minimal gap), to the intake and output of the drive & idler. This is often a very easy mod. An adjustable tension on the idler would be a bonus.

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@Jeff_DeMaagd yes thats correct. Will upload a pic of my version which does not have ptfe in it. Works so good :wink: but for an existing extruder yes thats all you need

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Hey! Did you try to do something like this?

It seems like a great break through when it comes to printing robust parts.
Is it worth to invest into it?
Please do video about it! You are great!

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Hey Thomas, Do you want to try the BPS V3 Extruder?

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@Bill_Yang are you advertising for them?

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@Jeff_DeMaagd just to see if Thomas want to try out my extruder.