Anyone got a suggestions for cutting 6-8mm thick perspex

[SeeO2]

Although not as accurate a multi tool is good for cutting most plastics due to the finer blades , speed control makes it even better imho

Maybe not for 200 pieces though.

 

[TimV]

All the above, plus: (1) in my experience it tends to become more brittle (and prone to cracking) with age, so be particularly careful as this is second-hand. (mind you, the stuff I discovered this on was much older than yours will be). (2) I have successfully profiled it on a milling machine but am not sure whether a router is OK as the cutting speed is faster - I would defer to others on this point, but suspect it's worth a try as long as you watch out for the heat (3) if you have rough edges then very judicious application of a heat gun will remove the sharpness, and make the edge clearer again, but don't overdo it as it will soften- perspex can be heat-formed very nicely. (4) in case you didn't know, you can stick pieces together with acetone.

 

[throbscottle]

The bits of acrylic I've cut have been with a hand saw and it worked very well. Cuts easily enough. I'd go for a hard point panel saw. My power tools are too cheap and basic to chance using for it - I'd probably just get partly melted shards!

 

[ajs]

Whenever I need to do this I use a scroll saw. 90% of the time that's with a 14tpi coping saw blade, moderate speed and the sheet pushed through at it's "natural" rate - that is, the speed where increasing the force applied does not materially increase the cutting speed. I find you don't need to worry unduly about melting, it hacks through the sheet quick enough to be a non issue.

The coping saw blade leaves a nice uniform ridged finish not unlike a milled effect. If that's not what I want I switch to a relatively coarse piercing saw blade which gives a silky smooth finish that needs the bare minimum of polishing to make crystal clear.

Using only hand tools my first stop would be a hacksaw if you can work around the frame. My concern with a panel saw is they're a lot coarser and potentially prone to chipping, although modern Perspex is slightly flexible and a lot tougher than it used to be.