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» The Letterville BullBoard » Old Archives » Can ya bend Lexan?

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Author Topic: Can ya bend Lexan?
Bob Rochon
Resident


Member # 30

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I have to make some sign panels for an old cabinet. the original panels were too old and brittle to clean so I'd like to use lexan.

I've heard you can bend it in a brake but has anyone ever done this, if so did you have to heat it first or can I bend it raw.

Thanks in advance for any info

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Bob Rochon
Creative Signworks
Millbury, MA
bob@creativesignworks.com

"Some people's kids"



Posts: 5149 | From: Millbury, Mass. U.S. | Registered: Nov 1998  |  IP: Logged | Report this post to a Moderator
David Otero
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Member # 1645

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YES

I built an aerobatic airplane a few years ago and I made several panels with Lexan. It bends just like sheet metal. You do not have to heat it. You can also shape it with a roller, route it, drill it and scroll saw it.
Drilling it does not take a special bit as the suppliers would like you to think, so don't buy the one they sell, just use a regular bit that you would use for steel. The thermal expansion is much higher than that of most metals, so drill your holes slightly larger to avoid cracking around the hole later. Sharp or uneven edged can be cleaned up with a file or sand paper.
Good luck.

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David Otero
Ace Signs
Albuquerque, NM


Posts: 70 | From: Albuquerque, NM USA | Registered: Jul 2000  |  IP: Logged | Report this post to a Moderator
Dave Ginley
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Member # 1723

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I agree with Dave..I've bent lexan as Dave describes and have also bent plex but that you do have to heat..

Dave

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Ace of Signs
Selinsgrove, Pa.
www.aceofsigns.com


Posts: 172 | From: Selinsgrove, Pa., USA | Registered: Sep 2000  |  IP: Logged | Report this post to a Moderator
Pierre St.Marie
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Member # 1462

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Here's how it works. We have a heat strip in the studio that does up to 4' widths of Lexan. It takes approximately 5 times longer than acrylic. If its' a large curve, like a windshield, you block the center twice as high as the deepest point required and then block both ends with 2x4s screwed into a substrate (plywood) and jam the lex. Now position 2 double banks of halogen lights over the top and leave it. The bend will stay, but it will return the center to about 1/2 what you started with.

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St.Marie Graphics
& Makin' Tracks Sound Studio
Kalispell, Montana
stmariegraphics@centurytel.net http://www.stmariegraphics.com
800 735-8026
We're chiseling every day of the week! :^)



Posts: 4223 | From: Kalispell,Mt 59903 | Registered: Mar 2000  |  IP: Logged | Report this post to a Moderator
   

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