Wax filament for FDM 3D printers?

Do you guys know anything about it? does it exist? if it does, where can I get it?

PLA can be burnt out for lost wax casting, so this is a nonissue in my opinion.

Until somebody manufactures a PLA optimised for investment casting it is an issue. Ash content, consistant shrinkage, interaction with the investment material (Plaster of paris or whatever) and many other variables can have an effect.

I do know that there are FDM/FFF printers that use wax for jewelry etc., but I don't kn ow if they use filament, granules or a cartridge, sorry.

Mike

I used to work at a jewelers supply store, the wax comes in the right size to use in a regular hot end, although pushing it through might be tricky.

How about using a stick of wax in someting like a paste extruder sat on top of a hot end?

TC