Help: what is the PTFE length for he Mosquito without Bondtech extruder
 

Help: what is the PTFE length for he Mosquito without Bondtech extruder  

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charles.h13
(@charles-h13)
Famed Member

Ok, I am embarrassed.  I installed it and now I need to replace it.  What is the length of PTFE tubing for a Prusa with the stock extruder and Mosquito hotend?

Posted : 08/08/2020 7:07 pm
3Delight
(@3delight)
Moderator Moderator

According to the Prusa Online shop ( https://shop.prusa3d.com/de/mk3mk3s/929-hotend-ptfe-tube-mk25s-mk3s-mmu2s.html) is:

Specifications:

  • Length: 44.3 mm (tolerance +/- 0.2 mm)
  • Inner diameter: 1.85 mm
  • Outer diameter: 4 mm

Hope this helps.

Posted : 08/08/2020 7:11 pm
charles.h13
(@charles-h13)
Famed Member

@3delight

I am not sure that is correct.  I am asking for the Mosquito hotend on the Mk3S.  

Posted : 08/08/2020 7:13 pm
3Delight
(@3delight)
Moderator Moderator

Ah sorry missed that in your question... 😞 

From the Mosquito Installation instructions ( https://cdn.shopify.com/s/files/1/0252/5285/5880/files/Mosquito_Assembly_and_disassembly_instructions_1.pdf?1382):  

The 4.1mm diameter, 1mm deep counterbore on
the top surface of Mosquito’s™ heatsink is
designed to locate PTFE tubing with 4 mm outer
diameter, aligning the tubing’s hole precisely with
the heat break’s hole. Slice Engineering™
recommends Capricorn XS tubing since its 1.9
mm inner diameter will prevent dramatically
oversize filament from entering the heat break
where it could become lodged.

 

From someone's mod on Prusa Printers.org ( https://www.prusaprinters.org/prints/2225-prusa-mk3s25smmu2s-mosquito-hotend-extruder):

You will need to provide a short (approximately 40mm) piece of PTFE tubing to complete the install.

 

It sounds like the standard Prusa PTFE tube is pretty close to it and may just need trimming down a smidge.

 

This post was modified 2 months ago by 3Delight
Posted : 08/08/2020 7:15 pm
charles.h13
(@charles-h13)
Famed Member

Thanks

Posted : 08/08/2020 7:39 pm
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