Any way to print completely clear with an fff printer?

Any way to print completely clear with an fff printer?

Yes. With no filament.

Clear tglaze and that funky chemical I bought and never used. You can only do it on single wall case mode tho

Generally, no. The closest anyone’s gottent was when printing PET with a single wall and thick layers, then coating with XTC-3D to remove the surface features that refract the light.