Cutting Sintra Plastic For Complex Shapes

vonroll

New Member
I was stuck trying to figure out a way to cut Sintra (pvc sheet) into complex shapes. I first attempted my Roto Zip saw but it runs at such a high RPM that it literally melts the plastic and in many times, the plastic behind the cut re-seals itself. It's also hand-held, so that's an issue too. Anyway, I hit upon putting my Roto Zip bit into a drill press and it works pretty damn good. The slower RPM helps create a better edge. I can see also that I'd be able to stack armor pieces and cut them out uniformly due to the greater torque of the drill press.
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I've heard an exacto knife works ok but man wouldn't that be painful after a while.
I hope this helps.
 
awesome to have a hands free drill like that one!!! my roto zip has differend speed settings but like u said by being hand held its kinda hard.... thanks for sharing that idea , i think they sell a stand for mines i got to check....thanks bud
 
Hi m8

I've been looking into router bits for my router when I get it, and you can get all different bits pending what you want to cut. This firm are good as they do loads pending what you want to cut http://www.cutter-shop.com

:) Don
 
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awesome to have a hands free drill like that one!!! my roto zip has differend speed settings but like u said by being hand held its kinda hard.... thanks for sharing that idea , i think they sell a stand for mines i got to check....thanks bud

my RotoZip was one of the first ones out and it's one speed only (FAST). :) I thought about buying a speed control for it, but that's not cheap and it didn't get around the hand held aspect which I'm shaky on. I'd definitely buy that stand. I didn't know that they had one for the RotoZip. That might even be better. Then I guess you can pick if you either move the material or move the tool.
 
during my sintra fiddling phase, I used a coping saw and cut my shapes by hand. I found that anything powered I had was too fast (melted the plastic) and was too uncontrollable. A fine tooth, narrow blade band saw works well too on a slow setting.
 
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