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CUTTING lexan(or plexi) with jigsaw.....
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AlanS17:
Lexan cuts soooo easily with a jigsaw. Plexi is another matter. It can melt back together and get your blade stuck or cause hairline cracks. In either case, the thinner the material, the better. Thicker stuff has more friction and you get more melting.
TalkingOctopus:
Cutting lexan with a circular saw is much better than a jigsaw.  I tried a practice piece with a jigsaw and it was ugly.  When cuttng lexan, the more teeth on the blade the better.
AlanS17:

--- Quote from: TalkingOctopus on July 10, 2003, 12:53:08 pm ---Cutting lexan with a circular saw is much better than a jigsaw.  I tried a practice piece with a jigsaw and it was ugly.  When cuttng lexan, the more teeth on the blade the better.

--- End quote ---

I guess it depends on the hand. Some people have built entire cabinet with a jogsaw rather than a circular saw. I think that's pushing it, but using a jigsaw really isn't hard.

The secret to straight cuts (at least for me) is holding down the base plate with your extra hand and actually pulling it away from you with your thumb rather than actually trying to guide it with your trigger hand. Guiding it with your hand down on the plate also allows for really easy turns.

I don't know if this is how other people do it or not, but it works well for me.
GamingGreg:
So, what about drilling holes in plexiglass?  Does that work okay? Is so, what kind of drill bit is best (hole saw, forstner, spade, etc.)

Also how would you cut an interior (square) hole for a trackball?  (Trackball plate will be on top of that)  It seems the score and whack method would work there.
AlanS17:
This is just how I would do it. Other may have their own ways.

For drilling, I really recommend lexan over plexi, but in either case go very slow. Some people recommend you put it in reverse and melt through. This may be more beneficial for plexi. Not necessary for lexan, though.

For cutting a hold in the middle, I'd first drill a hole and insert my jigsaw and work out from there.
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