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Paul Clay2
04-15-2010, 6:26 AM
Hello everyone.

Not sure if this is the right forum, but it seems some of you use acrylic. I have a question about the best way to make an acrylic disk. I need it to be .250" thick and 2" in diameter. I have no manufacturing knowledge but it seems to me that I could either buy a .250" thick sheet of acrylic and have 2" circles cut out... or... here's where I'm taking a guess.... is it possible to buy a 2" diameter acrylic rod and somehow cut it into .250" disks reliably?

Great forum, thanks for any help you can offer.

-Paul C
Mike Null
04-15-2010, 6:43 AM
They can be laser cut from sheet stock. Rod sounds good too but the only way I'd know to cut it would be with a saw. Depends on the finish you're looking for.
Rodne Gold
04-15-2010, 6:52 AM
I think rod is a LOT more expensive than sheet - of course the flat surfaces of the discs would also be problematic what with saw marks etc
Kenneth Hertzog
04-15-2010, 6:54 AM
Paul
you stated that its to be .25 thick
most acrylic is MM which is .22 to .23 thick
and I would use flat sheet to control thickness.
Ken
Paul Clay2
04-15-2010, 7:08 AM
That was nice! Seems like rod is more expensive, tough to cut at the proper thickness and might not give me the finish I'm looking for.. Yes, I need .250" thick, 2" diameter, "shiny, smooth finished" disks. I wasn't aware .250" was hard to come by. Anyone have any ideas? On top of everything, I'm looking for a colored sheet. :/

-Paul C
Mike Null
04-15-2010, 7:27 AM
Paul

Take a look at Delvies. Their selection is pretty good and prices competitive.
Conrad Fiore
04-15-2010, 7:36 AM
Paul,
What is the +- tolerance of the .250" thickness? As Ken stated, you will be way low if you try to use 1/4" thick acrylic.
Paul Clay2
04-15-2010, 7:38 AM
It looks like a sheet of 1/4" thick is real cheap here! thanks!

-Paul C
Paul Clay2
04-15-2010, 7:44 AM
Paul,
What is the +- tolerance of the .250" thickness? As Ken stated, you will be way low if you try to use 1/4" thick acrylic.


I'd like it to be no more than 1/32nd of an inch off. Am I dreaming?

-Pablo C
Kenneth Hertzog
04-15-2010, 8:13 AM
Paul and others
6mm is very close to .25
I find it to be .225 to .23 which is very close but not .25
not sure you can find .25 ( I've tried )
in my shop 6mm works
in size it is a little more than 1/64th undersize.
ken
Paul Clay2
04-15-2010, 8:29 AM
Paul and others
6mm is very close to .25
I find it to be .225 to .23 which is very close but not .25
not sure you can find .25 ( I've tried )
in my shop 6mm works
in size it is a little more than 1/64th undersize.
ken

Much appreciated. It sounds like this might work for me.

-Paul C