Ender 3 V3 SE/KE PTFE Passthrough Guide

PTFE Guide 25mm.stl

Creality K1 MAX PTFE tube holder

K1 MAX PTFE tube holder 1.stl

Pneumatic PC4-10 Mount (PTFE)

Screw.stl

PTFE Tube Cutter Assistant

PTFE Tube Cutter Assistant.stl

PTFE Cutter for Copperhead C-E in Neptune 3 Pro/Plus/Max

ptfe_cutter.3mf

PTFE Tube Coupler, Clips and End Cap

ptfe tube plug.3mf

PTFE Coupler

PTFE Coupler.obj

PTFE M10 Flanged Nut

Flange/Funnel Nut for PTFE M10 fittings. Perfect for guiding filament into the fitting out of your dryer box.

M10 Flange.stl

Sunlu Filament Dehydrator PTFE Connection 

Dehydrator ptfe Filanut V2.stl

Magnetic PTFE Guide 

pftfeguide.stl

Bowden connector 2020 V slot mount

bowden connector 2020 V slot mount v2.3mf

BIQU B1 Hot-end PTFE 35.5mm CUTTER

A 4.00mm PTFE cutter designed in FreeCad for my BiquB1.
Because every printer usually has different lengths inside the hotend. I had to designed it for 35.5mm, to use it with the hotend fix made for the Biqu B1 by Design8Studio. (https://www.thingiverse.com/thing:4837928)

35.5mm Length 4.00mm PTFE CUTTER

Creality CR-6 SE Rubber Band Bowden Guide

Cr-6 SE Tubing Guide Part 1.3mf

AMS Hub PTFE Tube Tool

AMS+Hub+Tool.stl

Ender 3 series PTFE-to-Creality Direct Drive Extruder Arm Conversion

Since humidity is an issue in my area, I use Rubbermaid 21 cup dry boxes with a reverse Bowden setup on all my printers to minimize the filament's exposure to the air. My Ender 3 Pro is setup for direct-drive extrusion. The stock Creality extruders (plastic and aluminum) don't have a threaded inlet for a PTFE fitting. I'm not content with using a stop at the top 2020, which leaves a good amount of filament exposed, subject to getting brittle, causing breakage. I designed this glue-on conversion for the Creality extruder arms and will work with any PTFE fitting that use the M6 threaded ends.

My top-most criteria was to have it strengthen the plastic version of the Creality extrusion arms, hence the thickness or height of the conversion piece. I also wanted to make sure torque on the PTFE fitting, while the hotend was traversing the X-gantry, wouldn't cause the conversion to loosen up or break due to flexing.

I decided to tap the threads instead of designing them in. Ample reinforcement has been added around the hole so that tapping won't break into the infill. With this method the size and shape of the threaded hole is guaranteed regardless of the filament used and the accuracy of the printer.

If you don't have an M6x1.0 tap, and aren't interesting in acquiring one, you can make one by:

1 - filing two opposing grooves along half the length of an M6x1.0x10+mm screw with a jeweler's file

2 - running it in and out of the hole a little at a time, until the threads are cut all the way through the hole.

15% infill with a Grid pattern is ample as long as you use at least 4 walls (perimeters) I recommend 6. 5-minute epoxy and small hobby clamps will secure the conversion piece to the topside of the extruder arm, which should be done with the arm removed from the extruder. Make sure no epoxy gets into the PTFE threaded area or in the filament hole of the arm. Leave overnight to fully cure.

The two extruders shown are the plastic model that comes on the Creality Ender 3 series and the red anodized aluminum one (on my Ender 3 Pro) that comes with the Creality direct drive kit.


 PTFE tube guide for Anycubic Kobra 3 V2 Combo

kobra1.3mf

PTFE Tube Stopper - Prusa XL Cable Clip Stopper

PTFE Tube Stopper.stl

ptfe

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Ender 3 V3 SE/KE PTFE Passthrough Guide

Creality K1 MAX PTFE tube holder

Pneumatic PC4-10 Mount (PTFE)

PTFE Tube Cutter Assistant

PTFE Cutter for Copperhead C-E in Neptune 3 Pro/Plus/Max

PTFE Tube Coupler, Clips and End Cap

PTFE Coupler

PTFE M10 Flanged Nut

Sunlu Filament Dehydrator PTFE Connection

Magnetic PTFE Guide

Bowden connector 2020 V slot mount

BIQU B1 Hot-end PTFE 35.5mm CUTTER

Creality CR-6 SE Rubber Band Bowden Guide

AMS Hub PTFE Tube Tool

Ender 3 series PTFE-to-Creality Direct Drive Extruder Arm Conversion

PTFE tube guide for Anycubic Kobra 3 V2 Combo

PTFE Tube Stopper - Prusa XL Cable Clip Stopper