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Full Version: 1003 S15 Fresnel question: acrylic or pvc?
Lumenlab > LLAVS: Lumenlab AVS > Projector Builder > DIY Video Projector Design
MJames
Hello All,

I'm in the planning/acquiring stage of building my 15" pj.
My question is: What material is the lumenlab frensels made of, acrylic or pvc?

Thanks in advanced

James
kingjamez
I believe they are optical PVC.

-Jim
Agent707
And they are very soft (scratch easily).... *speaks from experience* unsure.gif

wink.gif
bmr_drvr
Brain mentions the fresnels being acrylic here:

http://www.lumenlab.com/forums/index.php?s...st=0&#entry5918
Xenfinity
They're acrylic and quite sturdy.
MJames
Thanks for the replies guys, most helpful.
Fortunately for me the Devcon plastic weld adhesive bonds acrylic perfectly for my fresnel border extensions.

My objective: extended the lumenlab fresnel dimensions with a 3/8" black acrylic border. Once fitted in the wood frame slot recesses, allowing no reduction of fres foot print.
pagercam
Be careful, some of the bowing problems appear to come from a lack of ability to expand within frames. glueing to the edges may make this a worse issue, so at least make sure there is expansion in the wooden frame.
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