Joseph Shawa
10-29-2016, 3:22 PM
So I took a baking pan and filled it with about 3mm of water.
Test fire 100% and hold > boils water instantly and crackles.
1mm thick copolyester. (PETG)
Cuts great under water believe it or not. So long as the water isn't more than a a couple of mm or so over it AND there is less smoke.
What I did learn though is that the "Flashback" that was supposedly causing the discoloration of my material was in fact still occurring even under water. It seems that the material is actually blackening internally and not removable.
So I did a bunch of speed/power trials and found that copolyester actually cuts MUCH cleaner at slow speed. Normally I have been cutting it a 80mm/sec and 100% power.
When I got down to below 20/20 there was only a haze near the cuts and it was almost completely removable with alcohol.
I'm now going to try cutting at lower Hz to see what that will do. Quick edit. No difference
Test fire 100% and hold > boils water instantly and crackles.
1mm thick copolyester. (PETG)
Cuts great under water believe it or not. So long as the water isn't more than a a couple of mm or so over it AND there is less smoke.
What I did learn though is that the "Flashback" that was supposedly causing the discoloration of my material was in fact still occurring even under water. It seems that the material is actually blackening internally and not removable.
So I did a bunch of speed/power trials and found that copolyester actually cuts MUCH cleaner at slow speed. Normally I have been cutting it a 80mm/sec and 100% power.
When I got down to below 20/20 there was only a haze near the cuts and it was almost completely removable with alcohol.
I'm now going to try cutting at lower Hz to see what that will do. Quick edit. No difference