I have designed some parts that I will be 3D printing on my TAZ 5. Since the final parts will need to be able to stand up to being baked in an oven at 130C for 30-90 minutes, I am planning to cast the parts in polystone. My three main concerns are smoothing the 3D print before molding, making sure the print is sufficiently solid to stand up to the weight/pressure of the RTV rubber during pouring and set-up, and making sure that there are no chemical conflicts between the filament and the RTV rubber.
I have on-hand:
- Esun HIPS
- Esun PLA
- Village Plastics ABS
- colorFabb nGen
- taulman 3D n-vent
- I’m not opposed to picking up a different filament if need be.
I know that there is a method for smoothing ABS with acetone or with XTC-3D. I haven’t really seen anything about smoothing the other filament types other than sanding.
I know that the item to be molded should not have sulfur in it, because this causes problems when trying to mold items made out of some commonly available types of clay.
I have checked with the manufacturer of the molding material I am using, the polystone casting material I am using, and the clay I will be sculpting over the final object (hence the need to stand up to oven baking). None of them have any experience at all using their products in conjunction with 3D printing.
All that being said, any input on the three issues I know I may have? Any input on any issues I may not know I have?
Thank you in advance.