Jon Ison
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| posted on 18/2/14 at 05:40 PM |
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Best way to cut clear Perspex ?
I don't own a jigsaw, slitting disc too much, will it burn and discolour it?
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theprisioner
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| posted on 18/2/14 at 05:57 PM |
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I am told these are the type to use by a man from Brasscraft example:ebay item: 131098266297
http://sylvabuild.blogspot.com/
http://austin7special.blogspot.co.uk/
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TallGuySmallBike
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| posted on 18/2/14 at 06:28 PM |
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A hammer. 
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MikeRJ
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| posted on 18/2/14 at 07:02 PM |
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For sheets up to about 3-4mm you can cut straight lines by deeply scoring the sheet with a stanely knife and snapping it across the edge of your
workbench.
Circular and jigsaws can be used, but both tend to melt the edge which can partially weld itself back together. A hand saw designed for wood works
perfectly well, you just need to clamp the sheet down firmly close to the cut line and use a shallow angle on the saw (this is they way my old
woodwork teacher taught us). If you make a short cut from the opposite end and side first then you won't get a chip taken out of the corner as
you complete the cut.
File/sand the edge to remove the saw marks and then run the flame from a blowlamp across it to get a perfect glossy edge.
[Edited on 18/2/14 by MikeRJ]
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waggy
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| posted on 18/2/14 at 08:32 PM |
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What mike said.
Almost to the letter what I was going to say.
Don't go too mad with the flame it only takes a quick lick.
Do the right thing, right, first time!
If only it was that simple!
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austin man
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| posted on 18/2/14 at 09:30 PM |
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if using a jigsaw etc I use a compressor to blow away swarf and cool the blade this prevents the welding back together
Life is like a bowl of fruit, funny how all the weird looking ones are left alone
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Jon Ison
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| posted on 18/2/14 at 10:10 PM |
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Looks like I need to invest in a jigsaw ?
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adithorp
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| posted on 18/2/14 at 10:49 PM |
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I've always done it with a jig saw. Recently invested in a battery one and it's a lot easier to use than the old mains one dragging the
cable along.
"A witty saying proves nothing" Voltaire
http://jpsc.org.uk/forum/
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unijacko67
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| posted on 18/2/14 at 11:29 PM |
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244D bosch blades, slow speed, firm grip, press on.
whatever type/make of jigsaw you get try for bosch blades as they are the best.
I used plunge saw for all the straight bits for the sliders and finished all the corners with jigsaw. As mentioned you do need to get the
speed/pressure right or it welds back up behind you.
http://www.kittenkitcar.co.uk
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Peteff
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| posted on 18/2/14 at 11:47 PM |
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The jigsaw I use runs so slow you can count the strokes, my old one used to melt the edges back together with a fine tooth metal blade.
yours, Pete
I went into the RSPCA office the other day. It was so small you could hardly swing a cat in there.
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Matt21
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| posted on 17/3/14 at 08:45 AM |
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i couldnt survive without my jig saw! gets lots of use!
also inves tin some G clamps if you dont have already, then clamp a straight edge to the perspex to run the jigsaw along for your perfect straight cut
 (if you're a spacker like me and cant cut straight then its great )
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Jon Ison
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| posted on 17/3/14 at 09:07 AM |
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update, I cut it with a very slim slitting disc in my angry grinder, clean as a whistle no melting job done.
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trextr7monkey
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| posted on 17/3/14 at 11:41 AM |
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Bandsaw, no problem
http://www.flickr.com/photos/14016102@N00/ (cut and paste this dodgey link)
Our most recent pics are here:
http://s129.photobucket.com/albums/p211/trextr7monkey/
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coyoteboy
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| posted on 30/3/14 at 07:47 AM |
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Router works too.
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Proby
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| posted on 30/3/14 at 09:21 AM |
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I watched someone use an industrial guillotine the other day thats usually used for aluminum sheet. I awaited the crack and was shocked at how well it
worked cutting the perspex sheet.
Visit GraphicMonster
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40inches
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| posted on 30/3/14 at 09:36 AM |
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quote:
Originally posted by Proby
I watched someone use an industrial guillotine the other day thats usually used for aluminum sheet. I awaited the crack and was shocked at how well it
worked cutting the perspex sheet.
Are you sure it wasn't Polycarbonate?
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