Amazon.com: Polymaker PolyCast Filament 1.75mm for Investment Casting 750g Cardboard Spool - 3D Printer Filament for Lost Wax Investment Casting, Similar to Wax Filament for Metal Casting Plaster Cleanly Burn Out :
Castable wax for Jewelry making
Been working on casting aluminum. Im using machinablewax.com filament and vacuum casting in flasks. Print temp for the wax is 125c with a bed temp of 105c. Its a bit tricky at