I'm making some bird feeders with 1/8'' Plexiglas side panels & I'm
wondering what's the best way to cut the stuff? I've been repeatedly scoring
the sheet with a razor knife but that takes a lot of effort. There has to be
an easier way. Will a table saw blade get hot and melt the material during
What's the best way to cut Plexiglas.
clamp a piece of wood (2x4) to the table saw fence
(just enough to slide the plexi under it).
raise the blade (into 2x4) after you clamp the wood to the fence.
use a sharp plywood or celotex blade only.
feed plexi slowly into saw (under clamped wood).
you will need someone on the other end to pull it through the saw.
Always wear safety glasses.
that sh*t flys everywhere.
this is a safe and foolproof way to cut plexi
and it will always be straight...unlike a bansaw cut.
If you want a really nice, clear edge, "sand" on a flat surface covered with
emory cloth. Work down to a very fine grade. Then, spill some ethylene
dichloride on a flat (glass) surface and stand the plastic on edge in it for
a few minutes. You can then join the soft edge to another piece or let it
dry for a very nice edge.
razor knife will just scratch the surface, this type of blade actually plows
a little trench, and is also much easier to control. Alot of craft stores
carry something similar, and ther are also similar laminate blades that fit
utility knives. Just score and snap! Or, if you want to use a saw, go slow
and let the chips clear, so they don't weld the cut back together.
Yes. Use a close tooth blade such as a plywood blade but
turn the saw blade backwards so that the teeth are facing
backwards and feed the plexiglas through normally. The
backward blade actually cuts the material (a sharp blade is
not necessary but works better) but also melts some so you
end up with a bit of ragged plastic (melted) on one side.
But you can easily remove that with a stroke or two of
sandpaper held at 45 degrees. You can cut very thin,
brittle stuff this way without fear of a tooth catching and
shattering or kicking the panel.
<< What's the best way to cut Plexiglas. >>
Been working with the stuff for years and a table saw works just fine. This is
what plastics distributors use. Select a blade with lots of teeth and a really
wide set to the teeth and it will zip through it with little effort. For neat
joints, I use a 12" disc sander and a very fine grit abrasive with light
pressure. Your solvent joints will then be virtually invisible and very strong.
For curved cuts, a slow speed jig saw or band saw with well set teeth again
gives good results. Moral to the story, the right tool does the better job.
There are many good How To books at your library, craft store, wherever. HTH
quality 40 to 80 carbide tooth general purpose blade. If you will be
cutting a lot of it, blades designed specifically for plastics are
available but a decent wood carbide wood cuting blade does very well.
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