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Tool Talk Discussion Forum

Bending Plexiglass

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Slowpoke

10-01-2006 11:29:23




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A few posts ago on 9/20 there was a discussion about cutting styrofoam sheets. Will the toaster wire and dimmer idea by souNdguy work for bending Plexiglass? I've always wanted to set up something like that, but the "correct" wire is rather pricey.
Thanks




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tech4

10-02-2006 12:18:52




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 Re: Bending Plexiglass in reply to Slowpoke, 10-01-2006 11:29:23  
Many years ago in my high school shop class we made many projects out of plexiglass. We used a 40 gallon galvanize trash can mounted on the side. We had two heat lamps mounted inside. We had a shelf that the piece to be bent was on the shelf. I don't remember how long we left the plexiglass in the oven but seems like it was not very long. We then pulled it out hot and bent it around a pre-made wooden form to shape the bend. I know that I made towel racks. I have used that method over the years to make replacement parts for plastic items.

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Arthur

10-02-2006 06:42:54




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 Re: Bending Plexiglass in reply to Slowpoke, 10-01-2006 11:29:23  
If you have a heat gun, you can use that to bend Plexi.If you only have a few pieces to do. Just don't get it too hot...



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Jim Broughton

10-01-2006 22:30:30




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 Re: Bending Plexiglass in reply to Slowpoke, 10-01-2006 11:29:23  
Slowpoke, I'm an old sign maker, been bending plastic for years ! Go to your local plastic supplier and they should have or can order for you a "heat tape" for bending plastic, and it works real well for making sharp bends (90 degrees) or so in plastic,plex etc. Lexan takes a little less heat, but it is also bendable (Lexan is shatterproof, but flexible)
Hope this helps! Jim B.



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unun

10-04-2006 08:29:44




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 Re: Bending Plexiglass in reply to Jim Broughton, 10-01-2006 22:30:30  
Lexan isnt shatterproof, and will burn if to much heat is on it



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don inOH

10-01-2006 17:00:59




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 Re: Bending Plexiglass in reply to Slowpoke, 10-01-2006 11:29:23  
slowpoke, plex should be thermo-formed. you can put small parts in your oven at 300 deg. use welding gloves to remove and place on your mold and either a vacum force underneath or a reverse mold to set on top and push down. if you just need a 90 deg bend set plex on the edge of a board and heat evenly with propane torch don't let the flame set too long in one place. get a couple small pieces and do a few tests to get the feel of it, and play with it. we do that at work with large presses making sign faces. lexan can be broke on a sheet metal break, so can abs but it will weaken in the break. hope this helps.

don

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37WC

10-01-2006 12:12:43




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 Re: Bending Plexiglass in reply to Slowpoke, 10-01-2006 11:29:23  
Here is some information that seemed helpful. Good luck
37WC
http://fins.actwin.com/aquatic-plants/month.9712/msg00163.html



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