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Glock frame prints on a multi material printer (self.general)

submitted 1 month ago by nick20555 to c/general

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I'm wanting to start experimenting with Glock frames from a multi material unit. I have the Qidi Plus4 with the Qidi box which acts similar to the more popular Bambu X1C with AMS. What print orientation works well if you have the ability to switch filaments for support interfaces so they come out super clean? Also, what works well for that interface material? I hear PETG is good for PLA+ prints but I also hear to beware of swapping to filaments of different temps in the same nozzle. What would be a good interface material for PET-CF or PPA-CF or PAHT-CF?

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[–] Kopsis 3 points 1 month ago* (last edited 1 month ago) (1 children)

With good support settings, orientation (rails up vs down) doesn't really matter as long as it's horizontal and not some weird angle. Rails up is less likely to have warping on the dust cover, rails down uses less support material (and is therefore a little faster).

But you really don't need to do multi-material to get clean support removal. Tune your support settings and your cooling and you can get clean support removal without wasting a bunch of time and material. Here's one I printed a few days ago, rails-up, in 3D Fuel Tough Pro PLA+.

I didn't do any clean-up other than just removing the supports. I could have probably gotten it even cleaner if I slowed the print down a bit, but this was only intended as a test mule.

[–] unexpected 1 points 1 month ago

Looks pretty good, but to be fair, 100% full supports looks a lot better. Always worth doing when you got an IDEX. I don't know about those material changing printers though. Looks like a lot of waste in material and time. Would definitely have me thinking twice.

[–] sir_obitus 2 points 1 month ago

You probably want a material with the least creep

[–] unexpected 1 points 1 month ago

I'd assume a PLA would work well with the PET-CF, but I don't know about the other two. Would be worth testing with a cheap PLA and/or PETG to see how that works.

[–] JackBrush 1 points 2 weeks ago

petg is good for pla+ prints because it doesnt stick together at all. if you're using a bed slinger it can fling the filament right off of it though. the print towers and times are ridiculous if you dont have dual hotends. a 1 hour print becomes a 10 hour print when you use two different filaments like that. having to heatup the hotend to 250 then wait for it to cool back to 200 for the pla adds a crazy amount of time.