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Message ID: 34     Entry time: Fri Jan 15 12:28:54 2010
Author: Frank 
Type: Laser 
Category: RefCav 
Subject: foam cutting machine 

in order to build a custom fit insulation for the cavities i've built some hot wire foam cutting machines to cut the 2" thick polyurethane thermal insulation. The wire i use is a .010 piano wire typically used for suspensions (thats what we had i the lab). Nominal current is about 1.5A at a couple of volts, so any simple power supply does the job.

Here are some pictures of the large foam cutter to cut the 48" x 48" boards into smaller peaces and the circle cutting device:

100_0476.JPG

100_0483.JPG

 

original panel size
100_0509.JPG

 

pre-cut parts:
100_0510.JPG

 

cutting into smaller segments:
100_0513.JPG

100_0516.JPG

 

surface comparison before and after hot wire cutting:
100_0504.JPG

100_0505.JPG

 

circle cutter:
100_0530.JPG

100_0535.JPG

 

some cut parts:
100_0526.JPG

 

ready to cut the rest...
100_0538.JPG

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