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Anybody with hot wire foam cutting experience near Savannah?

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poormansairforce

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Joined
Mar 28, 2017
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1,092
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Just an Ohioan
Occasionally smooth, more frequently span-wise grooves, i.e., as if the wire had dug in to the foam. Based on comments above, our problem might be the foam. We have noticed pre-existing cracks in the foam, sort of like wood that has dried out and cracked.
Get a rectifier and a large capacitor so it has DC output and see if that solves it.
 

Lendo

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Feb 6, 2013
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602
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Brisbane
The wire in Hot wire foam cutters can move around, for one reason or another. I use mine on Polystyrene for insulation of my Shed. The best foam cutter and most accurate is a wire about 1/16" thick with very small sharp protrusions, the wire spins and is extremely taught. It's a professional machine and quite large, but does extremely accurate fine contours.
I mention this as someone might be able to copy this idea on a smaller scale. Quite obviously the wire must be available commercially.
Hope that helps.
George
 

Lendo

Well-Known Member
Joined
Feb 6, 2013
Messages
602
Location
Brisbane
BTW the best wire I've found to use in a Hot Wire cutter is SS tracer wire from Fishing supplies, about the thickness of the lower E string on a Guitar - just doesn't break and easy to bend.
George
 
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