Thread: Black Series
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Old 07-03-2019, 10:07 AM   #5
pa9k
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Quote:
Originally Posted by KillerBMotorsport View Post
How do you feel about the part being plastic?

How does it look?
Nylon is a proven plastic in automotive applications but of course and 3D printer part has some different properties than traditional manufacturing methods like injection molding. Looking at the surface finish and fine details I'm guessing this is printed on an SLS machine such as the Stratasys Fortus line. Afaik there is no option for glass or carbon fiber impregnated nylon with SLS machines. Would you mind sharing some information on the machine and material used?

These parts look really good, and I'd imagine would be a very popular conversation piece. Have you needed to do any secondary processes to these other than removing excess material?

There are two major concerns with 3D printed nylon, first is that any 3D printed part is porous solely due to the natur of 3D printing. Are any of these components under pressure or vacuum? What have you done to make these airtight?

The second concern about 3D printed nylon is that it is extremely hygroscopic (it absorbs liquid). While this generally has no impact on the performance and durability of the parts it will cause discoloration as it absorbs liquids contained in it. I assume this is one of the reasons these parts are made of a black died nylon. How much long term testing have you done on these products, specifically the catch can, and has there been any sign of it emitting an odor as is absorbs oil and fuel vapors? Have you coated the inside with any sort of sealant to protect against this, as well as make the product airtight?

Sorry for all the questions. Im a total nerd for 3D printing and when I saw (my buddy shared with me) this I wanted to get some more information. Overall I think these look great, its a good application of this technology, and is a really innovative product and process. I look forward to seeing more products like this and learning more about your process.

Thanks!
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