1 Topic by mark.giblin

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Topic: Suggestions on filament(s) to use

I am going to be making something that could potentially be high temperature.

My first print will be to determine fittings and design, the final print I want to do in something durable, some resistance to heat, the item will have cooling but can be coming in contact with hot pats like the heat sink and the mounting substrate that forms part of the cooling system.

So, any thoughts....

I was thinking of the PETG

I have no idea of temperature in operation yet, I am assuming that it will bet to about 60 degrees in operation.

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2 Reply by Kronikabuse

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Re: Suggestions on filament(s) to use

look at the glass transition temp of material. PC would be the best i believe. Nylon, ASA, ABS depending on the temps it needs to withstand

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3 Reply by carl_m1968

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Re: Suggestions on filament(s) to use

PETG melts at 210 to 235. It is the only material I print with now. As for the glass transition temp it is around 80c so it may not be high enough for you.

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4 Reply by mark.giblin

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Re: Suggestions on filament(s) to use

I guess I better see what initial tests turn up as for the thermal sink which will be various different lengths, backed up with a heatsink and fan off a computer.

I am figuring that there is a fair bit of heat given off with this item, so I was asking based on experience the best material that is out there that can withstand around 60 degrees celsius. There will be fans to help with thermal dissipation.

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I laughed that hard, I burst my colostomy bag.... (When I got my GeeeTech Pi3 ProB)
Prusa i3 MK2 clone by GeeeTech aka Pi3 ProB with a GT2560 board on MX17 Linux.

5 Reply by carl_m1968

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Re: Suggestions on filament(s) to use

If the plastic is just being used as an insulator it should be fine. But if it is load bearing it could be an issue as it softens from the heat, the load will make it deform.

Printing since 2009 and still love it!
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Voxelabs Proxima SLA. 6 inch 2k Mono LCD.
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6 Reply by heartless

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Re: Suggestions on filament(s) to use

from the description given, I would suggest something in the nylon family, myself.
but not knowing the exact application, it is just a suggestion.

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7 Reply by mark.giblin

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Re: Suggestions on filament(s) to use

It as project I am working on and it has to be on the QT.

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Prusa i3 MK2 clone by GeeeTech aka Pi3 ProB with a GT2560 board on MX17 Linux.

8 Reply by heartless

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Re: Suggestions on filament(s) to use

mark.giblin wrote:

It as project I am working on and it has to be on the QT.

I understand that - but the lack of information is also making it difficult to offer "accurate" suggestions.

for me, if it is load bearing, and subject to some heat, then I would go with one of the nylon offerings. It would be far more durable than PETG.

just a suggestion, however. You do what you want.

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9 Reply by mark.giblin

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Re: Suggestions on filament(s) to use

Thats the problem when you QT something.

I did a simple 2:8 ratio and 8:2 ratio on efficency : thermal loss

so using 20% as the basis of efficiency, the output of 80% heat is 240 Watts
and using 80% efficiency with 20% thermal heat is 60 Watts

the item in question is going to be thermally balanced so that its initial draw will be high but its maintaining draw would be the lower end of the scale. or in simple terms, 240 Watts to get up to temperature and 60 Watts to maintain temperature in a thermally balanced system that has active cooling to help maintain the balance.

Hope that helps.

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I laughed that hard, I burst my colostomy bag.... (When I got my GeeeTech Pi3 ProB)
Prusa i3 MK2 clone by GeeeTech aka Pi3 ProB with a GT2560 board on MX17 Linux.

10 Reply by carl_m1968

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Re: Suggestions on filament(s) to use

That information does not really help. We need the exact temp the material would be exposed to for the greatest time. That is what would determine the optimal material if any.

Printing since 2009 and still love it!
Anycubic 4MAX best $225 ever invested.
Voxelabs Proxima SLA. 6 inch 2k Mono LCD.
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11 Reply by mark.giblin

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Re: Suggestions on filament(s) to use

When my orders turn up, then I will be able to work on making a test rig, see what sort of temperatures were talking.

Bob's your uncle (and likely your father too...)
I laughed that hard, I burst my colostomy bag.... (When I got my GeeeTech Pi3 ProB)
Prusa i3 MK2 clone by GeeeTech aka Pi3 ProB with a GT2560 board on MX17 Linux.

12 Reply by carl_m1968

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Re: Suggestions on filament(s) to use

You might want to look at McMaster Carr or Grainger and look at raw Teflon or Delrin stock.

Printing since 2009 and still love it!
Anycubic 4MAX best $225 ever invested.
Voxelabs Proxima SLA. 6 inch 2k Mono LCD.
Anycubic Predator, massive Delta machine. 450 x 370 print envelope.

13 Reply by mark.giblin

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Re: Suggestions on filament(s) to use

Oh boy, the one I like the sound of is $37 for 500g and then there is the shipping, I think I got a bit of saving to do.

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I laughed that hard, I burst my colostomy bag.... (When I got my GeeeTech Pi3 ProB)
Prusa i3 MK2 clone by GeeeTech aka Pi3 ProB with a GT2560 board on MX17 Linux.

14 Reply by carl_m1968

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Re: Suggestions on filament(s) to use

mark.giblin wrote:

Oh boy, the one I like the sound of is $37 for 500g and then there is the shipping, I think I got a bit of saving to do.


Actually I meant raw as in sheet, or rod that you can mill to specs not everything needs to be or can be printed. There are other forms of manufacturing that sometimes are better than printing.

Printing since 2009 and still love it!
Anycubic 4MAX best $225 ever invested.
Voxelabs Proxima SLA. 6 inch 2k Mono LCD.
Anycubic Predator, massive Delta machine. 450 x 370 print envelope.

15 Reply by mark.giblin

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Re: Suggestions on filament(s) to use

As I live and breath, face well and truly planted in my palm in one of those DOH! moments.

Although I do not have the facilities... (yet, he says with an evil MuhWuh-hahahaha type laugh), I have just discovered that I have a Hackspace not 5 away, so I will be looking to join them when I can get hold of someone.

Bob's your uncle (and likely your father too...)
I laughed that hard, I burst my colostomy bag.... (When I got my GeeeTech Pi3 ProB)
Prusa i3 MK2 clone by GeeeTech aka Pi3 ProB with a GT2560 board on MX17 Linux.

16 Reply by heartless

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Re: Suggestions on filament(s) to use

mark.giblin wrote:

As I live and breath, face well and truly planted in my palm in one of those DOH! moments.

Although I do not have the facilities... (yet, he says with an evil MuhWuh-hahahaha type laugh), I have just discovered that I have a Hackspace not 5 away, so I will be looking to join them when I can get hold of someone.


LOL, thank you for the giggle this evening, Mark. smile

SD4 #1 & #2 - Lawsy carriages, E3D v6, Rumba controller board, mirror bed plate, X motor fan, upgraded PSU & Mica bed heater
SD4 #3 - in the works ~ Folgertech FT-5, rev 1
Printit Industries Beta Tester - Horizon H1