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Plexiglas

Printed From: the12volt.com
Forum Name: Fiberglass, Fabrication, and Interiors
Forum Discription: Fiberglass Kick Panels, Subwoofer Enclosures, Plexiglas, Fabrics, Materials, Finishes, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=87387
Printed Date: April 23, 2024 at 11:24 AM


Topic: Plexiglas

Posted By: soulassasin732
Subject: Plexiglas
Date Posted: December 18, 2006 at 1:17 AM

ok i wanted to make a custom enclosure for my amp and did some researchign but could not find it. can you screw into plexi glass or will it make it crack or something? if you cant screw into it what can i do to make it stay on the fabric that is on the wood? note i havent started anything



Replies:

Posted By: hurtado_roberto
Date Posted: December 18, 2006 at 1:34 AM

My brother used to have a box with plexiglass.  The plexiglass did crack when I torqued the skrews too much.  It works fine when you pre-drill the holes and don't over torque them.  I was researching different materials and I found that a clear matterial called Lexan has superior strenght; you can even hammer a nail through it and it will not crack.  It doesn't scratch as easily as plexi-glass either.  They sell small sheets at the home depot.

Has anyone used Lexan on their installs?  It is a bit expensive compared to plexiglass



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Poly Dollies




Posted By: soulassasin732
Date Posted: December 18, 2006 at 9:51 AM
really thanks ill do some researching on it




Posted By: Custom_Jim
Date Posted: December 18, 2006 at 11:46 AM

I'm going to say the thicker the material is (1" compared to 1/4"), the softer it is (lexan compared to plexiglass), the further away from the edges the holes are, and predrilling the through holes so no screw threads hit and allow for some expansion and contraction of the panel and/or the enclosure,  the better off you will be. By using large washers, trim rings, and plenty of screws, to spread out the clamping forces or loads on the plastic it will also reduce the chance of stress cracking.

You can drill and thread a lot of plastic materials but you just have to know the materials and methods of attaching them to another material.

https://rides.webshots.com/photo/2113299880049730488ltQwhl

Jim



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1968 Chevy II Nova Garage Find 2012
1973 Nova Custom
1974 Spirit of America Nova
1973 Nova Pro-Street




Posted By: soulassasin732
Date Posted: December 18, 2006 at 2:57 PM
thanx where can i get plexi glass and how much is it because i cant find it anywhere online




Posted By: maglin
Date Posted: December 18, 2006 at 8:24 PM
plexi is available at HomeDepot.

lexan is some madly expensive stuff, father used it as a windshield in his ultra light. bends in two directions... or seems to anyways. lol. he spent no less than 200 bucks for a 8 x 4 foot sheet of it. or at least i think thats what he said. i could be mistaken. *is on three types of decongestants*.




Posted By: soulassasin732
Date Posted: December 18, 2006 at 8:49 PM
can they cut the plexi glass to the size you want it and how much will it be for a sheet of plexi




Posted By: soulassasin732
Date Posted: December 18, 2006 at 8:49 PM
can they cut the plexi glass to the size you want it and how much will it be for a sheet of plexi




Posted By: maglin
Date Posted: December 19, 2006 at 9:15 AM
the one locally will cut it in one direction for you, ie - 8 x4 sheet can be cut into a 4 x 4 sheet or a 8 x 2 sheet.   or any other assortment. they don't like partial remnants laying around. THEY might do it where you're from, not sure. couldn't tell you the price though. haven't needed plex in a long time.




Posted By: soulassasin732
Date Posted: December 19, 2006 at 12:36 PM
alright thank you




Posted By: Custom_Jim
Date Posted: December 19, 2006 at 2:18 PM

Here's a place with an online calculator:

https://www.professionalplastics.com/cgi-bin/pp.pl?pgm=co_disp&func=displ&prrfnbr=85259&strfnbr=3&prname=ACRYLIC-SHEETS---EXTRUDED---Plexiglass

0.500" thick x 24" x 24" +/- 0.125" was $66.11

Jim



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1968 Chevy II Nova Garage Find 2012
1973 Nova Custom
1974 Spirit of America Nova
1973 Nova Pro-Street




Posted By: soulassasin732
Date Posted: December 19, 2006 at 3:00 PM
yea i went to that site id rather buy it in person




Posted By: Custom_Jim
Date Posted: December 19, 2006 at 3:12 PM

soulassasin732 wrote:

yea i went to that site id rather buy it in person

Yep, me too (OK now how much for a cash deal/no receipt)

Jim



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1968 Chevy II Nova Garage Find 2012
1973 Nova Custom
1974 Spirit of America Nova
1973 Nova Pro-Street




Posted By: qnretail
Date Posted: January 01, 2007 at 6:08 PM
I have a friend who works at a plastics factory. I can get you acryllic plexiglass in thicknesses from 1/4" to 1" for probably less than you would find it anywhere else. The 3/4" and 1" thick stuff will stop bullets. So if you are looking for a material that will have little to no flex, this stuff works great. Let me know how much you are looking for and I may even be able to get the sizes cutout for you using their lazer cutting machine.

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2 x DD9515f's, Digital Designs Z1 amplifier




Posted By: qnretail
Date Posted: January 01, 2007 at 6:20 PM

Another place to check out some serious plastic for a discount price are the Boeing surplus sales. They sell sheets of Tivar occasionally for about $750/per 4' x 8' sheet. I'm not sure how strong this stuff really is, but it is used for airplanes.. and normally costs a lot more than $750/sheet. The link to their surplus auction is:   https://surplussales.spiritaero.com/index.htm

It's located in Wichita, KS and is open every Friday.



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2 x DD9515f's, Digital Designs Z1 amplifier





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