What is your favorite filament for engine parts?

[shittyslant6]

I am making some coil pack valve cover spacers for a friend this morning to try out a new filament (PAHT-CF) and I was wondering what filament everyone else was using for engine parts.

Before I tried PLA-CF but I made a few things out of it and they warped at like 140 degrees sitting in my truck in the parking lot at work. (apparently not as heat resistant as advertised) I want to try polycarbonate but I was just wondering if anyone else out there has had any success with any other types.

 

[ec_co]

PLA should never be used for car parts IMO, too low of a melt point and it doesn't do well with UV. You need high temp filaments like ASA, ABS, etc. I use ASA and have no issues with warpage underhood, but mine don't get close to the engine either.

For 3D printing car parts, use ASA or Nylon for high-heat, UV-exposed, or impact-resistant components like engine bay parts, and PETG for durable, chemically resistant interior parts like brackets and housings.

 

[tmj91]

For non critical parts i use ASA. For others i use CF filled nylon.

 

[MadScientistMat]

Nylon is going to be the best option for under hood use.

 

[TurboGLH]

I also use abs/asa or pa-cf. The closet to engine parts currently are the electric fan brackets. They're based on the ones derale ships with their fans, but with the correct length/offset to fit my cool case rad. ABS on a stratasys, they've been on the car three years so far.

 

[72Duster440]

Those of you using ASA, what speed and temp settings are you using. I've never had a print fail with PLA, but I'll be damned if I can get ASA to work. My parts normally warp and lose adhesion..

Print head - 170
Bed temp - 90, preheated for 10 minutes to warm the enclosure

I do have my fans running good at 60%, which I might try turning them off.

And I have tried speeds from 300mm/sec down to 120mm/sec, is that still too fast?

 

[tmj91]

Those of you using ASA, what speed and temp settings are you using. I've never had a print fail with PLA, but I'll be damned if I can get ASA to work. My parts normally warp and lose adhesion..

Print head - 170
Bed temp - 90, preheated for 10 minutes to warm the enclosure

I do have my fans running good at 60%, which I might try turning them off.

And I have tried speeds from 300mm/sec down to 120mm/sec, is that still too fast?

I use the standard bambu lab print settings for it. I found that the textured plate warped worse than the smooth for some reason.

 

[72Duster440]

I have a Flashforge, but there's a profile in Orca for it. I do use a textured PEI bed though, maybe I'll try it without the sheet in there so its smooth.

 

[TurboGLH]

I use polymaker asa, and use the print profile/settings that polymaker provides. I actually prefer the texture plate for everything, the gold Bambu plate is amazing for everything except nylon (I use plain old glue stick for that.)

 

[furrystump]

I have used PETG for underhood parts. Printed a fake fuel pump housing. Printed an air filter spacer. Also a carb horn for a thermoquad.

 

[TurboGLH]

I have used PETG for underhood parts. Printed a fake fuel pump housing. Printed an air filter spacer. Also a carb horn for a thermoquad.

View attachment 1716479613

View attachment 1716479614

View attachment 1716479615

Now that, that's clever. I like that a lot.