PETG fail ruin PTFE tube and shop.prusa have none in stock
 
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PETG fail ruin PTFE tube and shop.prusa have none in stock  

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ben.c5
(@ben-c5)
Eminent Member
PETG fail ruin PTFE tube and shop.prusa have none in stock

TLDR -
PETG print stringed overnight into Noctua fan
hotend overheat because no Noctua
PETG heated and swell in PTFE tube in hotend
no PTFE tube in stock on shop.prusa

I have disassembled and extracted the tube, and can measure it, but do not know if it is bulged from heat and compaction filled with solid PETG

I am sure it is sold anywhere, probably hardware store down the street, but not interested in making more problems buying wrong size. Plz halp

edit - I do have PTFE from spare bowden of my CR-10, perhaps this is suitable? I measure it and it is very similar, only thing missing is the chamfer on the end by the bondtech gear for easier filament change

Postato : 28/03/2018 10:20 pm
ben.c5
(@ben-c5)
Eminent Member
Topic starter answered:
Re: PETG fail ruin PTFE tube and shop.prusa have none in stock

looks like 4mm OD and 2mm ID, and do not understand why 1 spare is not included with the printer. It is listed on shop.prusa @1.69$ US for a 48mm piece plus 14$ shipping (15.69$) and I can buy a 10 meter spool on amazon for 17$ free shipping... so each piece from the shop costs 7 cents (if you buy 10m rolls, and I am sure you are buying 1000m at a time and getting a better price.) I know its a business but you throw extra nuts and bolts in there, losing 1 ptfe and having a spare would mean I could get back to printing and source a new spare without downtime.

I guess I will murder my SPARE 640mm bowden that came INCLUDED with my CR-10, and order another 10M roll on amazon to replace that and many more.

Postato : 28/03/2018 10:43 pm
JoanTabb
(@joantabb)
Veteran Member Moderator
Re: PETG fail ruin PTFE tube and shop.prusa have none in stock

Hi Ben,

I believe the mk3 ptfe is actually 1.9mm ID, but I doubt 2mm ID will make a significant difference
don't forget to chamfer the outside of the lower end and the inside of the upper end
regards Joan

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK

Postato : 28/03/2018 10:50 pm
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