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Z-Axis Threads  

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Ckobar
(@ckobar)
Trusted Member
Z-Axis Threads

Hi. i'm curious?  I got my MK4 just recently and i'm wondering :

why do the threads/Nut on the Z-Axis have to be"dry", not lubricated ?  (As mentioned in the maintenance manual )

thank you for enlighten me 🙂

Respondido : 23/08/2023 9:11 am
JoanTabb
(@joantabb)
Veteran Member Moderator
RE: Z-Axis Threads

Delrin or {POM} is a plastic that does not need lubrication, the surface of the plastic is a low friction material that does not need supplementary lubrication. 
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

Respondido : 23/08/2023 1:37 pm
Ckobar
(@ckobar)
Trusted Member
Topic starter answered:
RE: Z-Axis Threads

OK. Thank you. since i got mine assembled, i could not   see that. 🙂

(so the tapered thread inside the nut ist delrin  or the whole nut ? )

Respondido : 24/08/2023 6:01 am
JoanTabb
(@joantabb)
Veteran Member Moderator
RE: Z-Axis Threads

the whole nut is POM

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

Respondido : 24/08/2023 10:07 am
Fil4ment
(@fil4ment)
Trusted Member
RE: Z-Axis Threads

also: if you add lubrication, without a constant stream of it, the lube will attract dust, which then becomes an abrasive slurry, and will slowly erode the delrin. Much faster than if the delrin was left dry.

Respondido : 26/08/2023 9:16 pm
Ckobar
(@ckobar)
Trusted Member
Topic starter answered:
RE: Z-Axis Threads

if at all, i was thinking of "dry teflon lubrication"

 

Respondido : 26/08/2023 9:21 pm
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