Re: Shaftless Throttle bodies
Posted: Wed Jul 15, 2026 4:21 pm
They do have incredibly strong and heat/chemical resistant 3D printing materials within reach of high-end consumer-grade printers these days. You could print PPS-CF on a printer like my Bambu HD2 and get useable parts I'm sure. As 3D-printer plastics go, it's expensive at $129 for a 750g spool, but compared to a CNC'd part, I'm sure it's a fraction of the cost. I'm just not all that sure about the long-term durability under the hood.
As a next-step up, there are now lots of online services to have parts 3D printer on very high-end industrial 3D-printers -- from strong nylons up to metal prints. Without any data or experience to support it, my sense is that parts made on a half million dollar HP printer are likely to last longer in a harsh environment. If you have a STEP model, you can upload it to an online parts house like xometry.com and compare prices between all sorts of 3d-printing processes, CNC, etc.
On the other hand, I'm sure a DIY PPS-CF/GF print would work for a while -- maybe a very long time -- and probably cheap enough to throw the dice at it... Lots of people 3d print parts to test fitment anyway, so this would accomplish that and most likely let you run the car for at least some period of time...
As a next-step up, there are now lots of online services to have parts 3D printer on very high-end industrial 3D-printers -- from strong nylons up to metal prints. Without any data or experience to support it, my sense is that parts made on a half million dollar HP printer are likely to last longer in a harsh environment. If you have a STEP model, you can upload it to an online parts house like xometry.com and compare prices between all sorts of 3d-printing processes, CNC, etc.
On the other hand, I'm sure a DIY PPS-CF/GF print would work for a while -- maybe a very long time -- and probably cheap enough to throw the dice at it... Lots of people 3d print parts to test fitment anyway, so this would accomplish that and most likely let you run the car for at least some period of time...