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Old Apr 30, 2011, 06:45 AM
RC-Archer is online now
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Rounding off the edges of EPP foam?


How do you guys round off the edges of your EPP foam? I'm trying different methods but I'm just making a mess.
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Old Apr 30, 2011, 07:10 AM
hoppy is offline
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Space Coast USA
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Belt sander or drywall sanding screen (looks like window screen - try first with a fine grit)
Seems that it likes to be "sanded" in one direction only, if sanded in the other direction it wants to grab and rip the foam. Use light strokes at first.
Old Apr 30, 2011, 01:07 PM
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Zen in the art of foam
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For large radius rounding I use a small hot-wire bow. Then sand it as described above.
Old May 03, 2011, 12:45 AM
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Thanks, I'll try them.
Old May 03, 2011, 02:13 AM
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I use a bench-belt sander most of the time. A one direction sander also works.
If your on a budget, a drum type sandpaper roll does ok, but use finer snading grits so you don't dig in too much.
Old May 03, 2011, 03:41 PM
goldguy is offline
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flyin' fool
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First shave down the edges using 45 degree slices with a new sharp blade and then drag among 80 grit sand paper in one direction only, then remove the fuzzies with a trim iron or the side of a hot glue gun tip.

The tips, stab and fuse pod were all square, then rounded using this method.
Last edited by goldguy; May 03, 2011 at 03:49 PM.


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