Voron Switchwire - Bearing PTFE top slot guide (BOWROLL)

The original Switchwire/Enderwire top PTFE/Bowden slot offers a lot of movement, but not a great chamber sealing. Temperature easily escape.

I tried to find a way to seal up the chamber..but also ensure enough X axis movement up to a printing height of ~170-200mm is ensured. I call it BOWROLL!

So here is my approach with 625ZZ bearing rollers to ensure a smooth bowden movement along with good X-axis and Z-axis travel.

BOM :

• 1x printed feed slot
• 1x printed housing
• 2x printed roller
• 2x printed counter block
• 4x 625ZZ bearing
• 4x brass heatset insert (M3x5mm)
• 2x M5x18mm screw
• 2x M5 nut
• 4x M5 1mm shim/washer
• 2x M3x6mm screw
• 2x M3x8mm screw

Tipp - Cut off the POM wheels from your spare V-slot Ender 3 wheels. Every wheel contains 2x 625ZZ bearings!

For reference : 

Here is the link to the side Bowden mount 

https://github.com/VoronDesign/VoronUsers/blob/main/printer_mods/StvPtrsn/Parts_Jigs_and_Mods/Mods/Switchwire/PTFE_tube_side_mount.stl

Modified the feed slot to seal up the chamber and added bearing roller for the Bowden tube.