Metal filled PETG?
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I would like to find metal filled PETG instead of PLA. I have a design that has a small amount of constant pressure from a Beryllium copper strip inside. With PETG and a 1mm wall this does not cause deformity over time but with metal filled PLA it does. With a 1mm (@ 0.2 layers) layer it will start showing deformity in weeks and with a 3mm layer over a period of months. Anyone seen any and if not anyone know why it isn't made?
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have you heat treated the metal filed pla after printing? that should significantly increase the resistance of the material?
like the htpla from proto pasta
https://www.proto-pasta.com/products/brass-metal-composite-htpla -
I was using Colorfabb bronze, brass, and copper. I do have some Protopasta steel, iron, and conductive but they are PLA. Guess I'll grab some Protopasta copper htpla and give that a whirl. I still don't understand why no one makes metal filled PETG. Perhaps the mix doesn't work well.
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I bet you could ask Proto pasta directly and probably get a response.
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Well, the annealed metal filled HTPLA lasted longer but is deforming also. I did email Proto pasta and the reply was they were not aware of any technical issues with making metal filled PETG and asked what properties I needed that the metal filled HTPLA didn't have. I haven't heard from them since I replied. I did think about making a void in the print and inserting a thin metal plate below the point that is deforming so I might try that.
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You may be able to try Priline Carbon-PC. Even though it's listed as polycarbonate it's obviously a blend since I have been able to print it quite successfully on my Taz6 printer without an enclosure at 260C and I believe I was only using 85C bed. The carbon fibers in it help stiffen it up.
I don't know if links are allowed but I'll try.
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Here is what I would try, Carbon Fiber PC from Snolabs. Excellent quality filament!
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I use Atomic CF PETG when I need CF, what I'm looking for is metal infused (brass, copper, bronze, stainless) for looks.
