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Applications — heat treating

Anneal HTPLA-CF for a Truly Durable Fiddle

Posted by David Perry on

PLA is often maligned for its poor temperature resistance and tendency to creep (deflect slowly over time). However, it's also super stiff by nature, and with a little carbon fiber it's way stiffer! That stiffness makes PLA particularly great for violin bodies, where a high stiffness to weight ratio means better sound. [This blog is guest-written by David Perry, lead designer and printer wrangler at OpenFab PDX.] You probably already know that Proto-Pasta's HTPLA can be heat treated, or annealed, to give it superpower-like resistance to elevated temperatures. But knowing this is one thing -- what happens when the rubber hits the road? What...

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Using Heat Treated Carbon Fiber HTPLA for the Prusa MK3 R3 Extruder Assembly

Posted by Keith Kovala on

Many times when printing extruder assembly parts for a 3D printer, like the R3 extruder upgrade for the Prusa MK3, PETG or ABS are specified as the material to use due to the heat exposure. However, Carbon Fiber HTPLA works great in these cases because of the carbon fiber's ability to hold form (rigidity), printed part detail, and heat resistance. Add to that the beautiful finish of 3D printed carbon fiber and even a function-before-form guy like myself gets excited. So where does HTPLA's heat resistance come from? It comes from it’s semi-crystalline structure. Amorphous materials like PETG and ABS surrender their stiffness (and...

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