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-   -   M103/m104 3d printed intake (http://www.peachparts.com/shopforum/mercedes-benz-performance-paddock/397635-m103-m104-3d-printed-intake.html)

benzdude42 02-23-2019 04:34 PM

M103/m104 3d printed intake
 
You you guys consider buying a 3d printed intake manifold for theses motors? It would be made of high strength nylon, Similar to what the m104 already uses. Right now I'm experimenting with nylon 645, which claims to be as strong if not strong than nylon 66(what GM uses in their plastic intakes). I'm just curious how the cominity feels about the idea.

duxthe1 02-23-2019 04:59 PM

I've been contemplating a 3d printed design that can molded, burned out, and cast in aluminum. Not as a whole piece, mind you, but in sections.

Printing a whole piece sounds like quite an undertaking.

97 SL320 02-23-2019 06:39 PM

I'm thinking this is going to be horrendously time consuming / difficult over an aluminum plate / thin wall fabricated manifold.

What kind of problem are you looking to solve with 3d printing / not using the stock intake / not making one from al plate - tube?

whipplem104 02-23-2019 06:58 PM

Do it. Sounds awesome. Are they going to be modeled for flow and what is the idea. Plenum size? Boosted application? Etc.

benzdude42 02-23-2019 10:16 PM

Personally it's for a m104.98 I'm building, but I have a 3.2 head and a m103 to model with. I'm thinking the first one will be modeled for low end toque since it's will be boosted. Granted I haven't quite looked into the phystics of intake manifold desighn. I plan on having a engineer look over my design before I ever try to sell one.

benzdude42 02-23-2019 10:22 PM

You can do some pretty accurate design and CAD these days. I have a very large printer, 22"x22"x22"

Mighty190 02-24-2019 12:10 AM

Id be worried about a 3D printed part failing especially in the hot engine bay. The SLA stuff tends to degrade with UV and anything that's FDM ends up being stratified and relatively heat sensitive. I think it would be a great way to test a manifold that you then manufacture in a more traditional way.

97 SL320 02-24-2019 10:27 AM

Lots of work, little gain if any , about zero market. I don't see a printed manifold taking less time overall than a welded one.

You will still need to perform machining on a printed manifold after it is rendered, this can be difficult and requires threaded inserts / sleeves to prevent crushing during final assembly. You will need access to a 5 axis mill or make a bunch of holding fixtures.

With an aluminum manifold, component parts can be machined prior to welding eliminating the need for machining a difficult to hold part.


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