Finishing 3D Prints: How to Sand, Fill and Prime 3D Printed Parts
120 Grit Sandpaper
220 Grit Sandpaper
Use 220 grit sand paper to sanding the whole helmet all over again. whole helmet or the whole prop in one grit and then over and over again the same thing.
320 Grit Sandpaper
Fillable Sandable Primer
I like to put it in a bath of hot water for a little while. This stuff is thick that's why it's sandable and fillable and this way it breaks it up and makes for a great mix and it'll coat it really well.
If you look at this thing you can see here almost no lines now in this helmet. It's gonna have a little bit of grit. But those major lines are gone now.
Filling for Cracks and Layer Lines
Little Tiny Files
400 / 600 Grit Wet Sanding
Use a 400 grit then 600 grit going over all the details and this takes care of all the sanding lines. Then go ahead and wet it again and wash it down and useTakes care of any sanding lines and makes this thing glass smooth.