heinzboehmer's 2002 Topaz 6MT Coupe

[George Hill]

Why not just use ASA?

Because this is the cheapest filament I have and since it’s printed it costs me nothing more to find out.

Heinz and I chatted about filament material already. We both know PETG is not the right material here but I’d rather throw away $7 of petg vs $20 of something else if the file wasn’t 100% on.

[Obioban]

Yes I am, I am also curious to see how it holds up too. I have PETG printed part in an intake system of a car that's been going for 2-3yrs now and its holding, but I think that one is not in as high of a heat affected zone as this part.

Why not just use ASA?

[heinzboehmer]

Pretty sure it won’t 😜

Yeeeah I don't really expect it to survive the Texas summer, but still a fun experiment.

[George Hill]

Thanks!

Are you planning on running the PETG part? Curious how it'll hold up to engine bay temps.

Yes I am, I am also curious to see how it holds up too. I have PETG printed part in an intake system of a car that's been going for 2-3yrs now and its holding, but I think that one is not in as high of a heat affected zone as this part.

[Obioban]

Thanks!

Are you planning on running the PETG part? Curious how it'll hold up to engine bay temps.

Pretty sure it won’t 😜

[heinzboehmer]

It did look 90* but I didn't spend a bunch of time staring at.

When it cools down outside I'll pull it apart and compare to a stock one.

Thanks!

Are you planning on running the PETG part? Curious how it'll hold up to engine bay temps.

[George Hill]

It did look 90* but I didn't spend a bunch of time staring at.

When it cools down outside I'll pull it apart and compare to a stock one.

[heinzboehmer]

Its in and it fits 99%. The only point of "issue" is the center tab for the microfilter is to high. But because its been glued together and printed in multiple pieces I don't know if this is the design or just the way I assembled it creating this extra clearance. Either way though its in!

Hell yeah, that's awesome! Thanks a bunch for testing.

Does the center tab look perpendicular to the mating surface behind it? It's possible that the print warped a bit.

If it is perpendicular (and you have the time), could you measure the parallel distance between the two highlighted faces? Would be nice if you could grab that measurement from both the printed and stock parts.



CAD says the center tab should be 2 mm lower than the side tabs. That looks reasonable to me based on pictures and the scan, but it's possible that I got that measurement wrong.

[George Hill]

Its in and it fits 99%. The only point of "issue" is the center tab for the microfilter is to high. But because its been glued together and printed in multiple pieces I don't know if this is the design or just the way I assembled it creating this extra clearance. Either way though its in!

[George Hill]

It fits!

I don't have a spare seal so I've just got it laid up on the firewall opening as is. This afternoon I'll fully assemble it into Eileen.

[George Hill]

glued and drying

[heinzboehmer]

Awesome! Excited to see how it fits.

[George Hill]

After a couple of failed prints (filament tangled on the spool) we now have (3) pieces... tomorrow we glue!

[George Hill]

Second one finished well, haven't fitted it yet, just jumped into printing the 3rd (middle) section.

[George Hill]

Ya, so far so good. I didn't mess with much just cut it into (3) pieces in a way that would fit and provide the most support when printing and then loaded my generic Sunlu PETG and hit print