Grinder

[dimwittedmoose51]

Most any larger city will have one or more businesses that deal in plastics only.  In Little Rock I dealt with a company called Cope Plastics and they were more than willing to sell me the scraps off big cuts of ABS, PE, etc.  Not sure if they are a nationwide chain or not, but the yellow pages might have listings for pastics wholesalers and if you find a company and they don't want to mess with you, they would likely know where to send you for our Lexan.  DSomeone on ebay may be selling scraps too, who knows....

YMMV

DM&FS

[scottg]

If you don't live in the city, McMaster-Carr.
 www.mcmaster.com
Take your pick of lexan or any one of 22 other polymers.
 yours Scott

[rusty]

Not acrylic, it shatters on impact, you want a  polycarbonate, it is available with scratch resistant surfaces also...

[Ietech]

It's been a long time since I bought any and don't remember where. I think it was at home Depot. You can get it at plastic suppliers, Grainger, or similar outlets. And I think you can get it at Hobby/Craft stores. I bought a 36" x 36" piece and still have enough laft that I will never need to buy any again.

[Ietech]

Not acrylic, it shatters on impact, you want a  polycarbonate, it is available with scratch resistant surfaces also...

It is pretty tough stuff. I does not shatter tho, It will crack if it is hit it VERY hard --- almost has to be intentional. JMHO
more Lexan info  lex·an 

/ˈlekˌsan/
Noun
A transparent plastic (polycarbonate) of high impact strength, used for cockpit canopies, bulletproof screens, etc.

http://www.ehow.com/about_5033151_lexan-made-out.html
 

[dimwittedmoose51]

When I was wearing rigid orthotics, they were made of Lexan and I may have cracked one pr. in like 20 years.

DM&FS

[rusty]

>It will crack if it is hit it VERY hard

True, it's not indestructable ;P
It will also do strange things if it gets caught in the tooth of a table saw....

lexan/acrylic - I probably caused more confusion that help, point was , the stuff at home depot will be acrylic unless you look for the other stuff, it is cheaper ....

1930 - I may have some cutoff's floating around, but it will be a few days before I can go look.
meanwhile, how are you going to mount them? If you have no frame, you can drill the thicker stuff....

Or you could just buy some safety glasses ;P

[1930]

I am not sure how I am going to mount them, I guess I have not gotten that far, I was hoping someone might have a picture of how they were mounted originally, I need to see what hardware I am missing.

[OilyRascal]

If it were me I'd be looking for a scrap Exacto magnifying stand with the multi-swivel arms and re-use all the handy little swivel joints and extensions within. 

Something like the picture attached.

[Ietech]

>It will crack if it is hit it VERY hard

True, it's not indestructable ;P
It will also do strange things if it gets caught in the tooth of a table saw....

lexan/acrylic - I probably caused more confusion that help, point was , the stuff at home depot will be acrylic unless you look for the other stuff, it is cheaper ....

1930 - I may have some cutoff's floating around, but it will be a few days before I can go look.
meanwhile, how are you going to mount them? If you have no frame, you can drill the thicker stuff....

Or you could just buy some safety glasses ;P

I do not use a table saw to cut Laxan or plexi. I make a custom scraper from a utlity knife blade by making a flat cutting edge where the point of the blade is then at the same point I make a small hook shape to meet the  the flat front edge. this will scrape through even Lexan. Use a straignt edge. After I have gone about 1/3 of the thickness I clamp it to my work bench edge with a piece of straight wood or metel on top. The whack it with a rubber mallet.

Wham it will break just like cutting glass but with a little more force. I've had 99% success. If you want to avoid the chance of cracking it just continue all the way thru with the home made scraper.

If you do use a saw make it a very fine blade. I would use a scroll saw if I were to do it that way. Definately not a circular. Just my preference tho ---

[Ietech]

lexan/acrylic - I probably caused more confusion that help, point was , the stuff at home depot will be acrylic unless you look for the other stuff, it is cheaper ....

Lexan is - polycarbonate  --   it  is NOT  acrylic 

 See link   http://www.ehow.com/about_5033151_lexan-made-out.html   it's pretty interesting.