Geeetech

dekes1
Your feedback is very interesting for me.
From which source do you have this information

Teflon PTFE(polytetrafluoroethylene)
Trade names: Teflon®, Fluon, PTFE, Tarflen®, Boraflon, Reproflon®, Halon, Polyflon.

PTFE is available in the form of rods, plates, profiles, sleeves, thick and thin-walled tubes, self-adhesive and non-adhesive PTFE keratecks, cutting tapes and thread seals, films, PTFE tapes.

PTFE or polytetrafluoroethylene is one of the most chemically resistant plastics, it can be used in the temperature range -200°C + 260°C. Visible decomposition of plastics is only noticeable at +400°C.

From myself I can add that I regularly print at a temperature of hot end 250°C. My printer has two such tubes and none of them has been thermally damaged yet.

_kaktus_ wrote: Mon Nov 19, 2018 11:10 pm

dekes1
Your feedback is very interesting for me.
From which source do you have this information

Teflon PTFE(polytetrafluoroethylene)
Trade names: Teflon®, Fluon, PTFE, Tarflen®, Boraflon, Reproflon®, Halon, Polyflon.

PTFE is available in the form of rods, plates, profiles, sleeves, thick and thin-walled tubes, self-adhesive and non-adhesive PTFE keratecks, cutting tapes and thread seals, films, PTFE tapes.

PTFE or polytetrafluoroethylene is one of the most chemically resistant plastics, it can be used in the temperature range -200°C + 260°C. Visible decomposition of plastics is only noticeable at +400°C.

From myself I can add that I regularly print at a temperature of hot end 250°C. My printer has two such tubes and none of them has been thermally damaged yet.

It is widely known that PTFE bowden tubes can not be heated over 235 continuously without reaching the softening point of the material and also approaching dangerous gas release. As your point above notes, the maximum material usage range is up to 260c (in a controlled environment)
PTFE will soften and constrict the interior diameter of the tube over 225-235 temperatures and can cause jams and failed prints.
Regarding the dangerous off-gassing, here are some references.

https://www.th3dstudio.com/knowledge-ba ... toughtube/
https://www.captubes.com/safety.html

Most notably, even with their superior composite, Capricon points out that printing at 250c and above will poison and likely kill pet birds.

Both articles that you have quoted come from websites concerning 3D printing.
Maybe their authors want to persuade customers to buy only their articles

I approach this news with a big smile.

But I agree that there may be different types of this material available in the market. And we don't know exactly what we have.

The subject is similar to the fact that ABS emits a stench when printing ...
Yes, but only this very poor quality.

Nevertheless, the topic is interesting.

_kaktus_ wrote: Wed Nov 21, 2018 1:54 am

Both articles that you have quoted come from websites concerning 3D printing.
Maybe their authors want to persuade customers to buy only their articles

I approach this news with a big smile.

But I agree that there may be different types of this material available in the market. And we don't know exactly what we have.

The subject is similar to the fact that ABS emits a stench when printing ...
Yes, but only this very poor quality.

Nevertheless, the topic is interesting.

My condolences to any pet birds in your home
https://www.petcoach.co/article/teflon- ... preventio/

Thanks @dekes1 for this valuable input ... I will go for that route since it's very easy to implement.
@_kaktus_ how would I measure the Voltage while printing? I've measured constant 24.5V with the power plug off the board, but once it's on the board, I don't know the points/pins where to look for 24V.

I understand that the clamps on the power supply terminal are not available
You can try to insert the measuring leads into the Molex Mini Fit plug, right next to the cables themselves.

With a bit of luck, you won't have to keep them all the time, but be careful not to let them jump out.

Measurements can also be made on the fuse terminals (+), and on the body of the USB port (GND).