The BEST Way to Smooth 3d Prints
by VanOaksProps
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What this video covers
VanOaksProps presents their signature method for smoothing PLA 3D prints before painting, combining spot putty with acetone to minimize sanding time. The technique draws on basic chemistry to fill print layer lines more efficiently than conventional sanding alone. The workflow is designed to get props paint-ready faster, freeing up time for more creative work. This is presented as the creator's original take on a widely discussed topic.
Key takeaways
- ◆Mixing spot putty with acetone creates an efficient gap-filling slurry that reduces heavy sanding
- ◆320-grit wet/dry sandpaper is used for final surface refinement
- ◆A sandable primer coat follows to reveal and address any remaining imperfections
- ◆Nitrile gloves and ventilation are essential when working with acetone
- ◆The method is faster than traditional sanding-only approaches for PLA prints
Who this is for
Prop makers and Halloween builders who use a 3D printer and want a faster, cleaner surface-finishing workflow before painting.
Tools mentioned
- • acid brushes
- • stir sticks
- • 320 grit wet/dry sandpaper
Materials mentioned
- • spot putty
- • acetone
- • nitrile gloves
- • shop towels
- • sandable primer
⚠ Safety notes
Acetone is flammable and produces fumes — use in a well-ventilated area and wear nitrile gloves. Avoid open flames nearby.
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