3d printing help

[ThatBobbyjoe]

Looking to design a vert feed for ICD blowbacks, specifically alleycats. Would anyone be interested in taking on helping with it? I’ve got dimensions /requirements figured out, just need to make a printable file that’s good and strong. Any thoughts would be appreciated.

Here’s the wood proof of concept, not pretty but you get the idea.

****id like to incorporate the feed neck into the print as well, this was just a test to make sure it would feed ok.

[Calvin]

Ohhhhh. I like the look of that! Can't stand power feeds, but that kind of mod might open up some options. I would do the feedneck and the wooden area as one piece. It will be stronger and easier to get right.

[Ecapnation]

One large issue.

Fdm printing and fine threads won't go well

[ThatBobbyjoe]

Should have made it more clear, I’d like the entire piece printed. The feed neck I put on just to test the feed angle.

[TencenT]

I think if you add a bit more bulk to it and add the ability to pin the print together in the direction of the barrel, you could print it on its side in ASA and you would get something potentially strong enough to be usable. I would still bet on it breaking but I have small custom ASA parts I made to hold the weight and motion of sun visors in my jeep and they have been holding up for a while now while being only a little bigger than the part you're designing. The key is imo is finding ways to add metal to increase the strength and printing at the largest size available to you like .28 or higher.

[RPP]

ThatBobbyjoe, i agree with everyhting TencenT posted.

[TencenT]

Oh one thing worth clarifying as it's a bit confusing for how FDM works. As I mentioned solid isn't really a thing, in some cases you can get pretty dang close to solid but strength generally comes from wall thickness. On a part like this you would typically set wall thickness to effectively infinite, say 100 walls, and that would get you what is generally considered a 'solid' FDM print. Hopefully that all makes sense, happy to attempt to expand on anything that didn't.

[ThatBobbyjoe]

Think I get the idea, print direction is going to dictate a lot of strength and there are maybe too many limitations for long term viability. But for direct prototyping printing will work.