Is Evergreen styrene machineable?

[Richard Bartrop]

Something I've come across is that when I've glued a lot of styrene sheets together is that over time, the block shrinks, We are talking about years, but if you're going to put all this work into a model, you want it to last. Mind you, i didn't squeeze the block in a vice as you mentioned. Have you had anything like this happen to you?

[Bugatti Fan]

The original question about is styrene machinable? Most of the posts seem to have described fabrication methods rather than machining.
Yes it can be machined, but bear in mind the heat generated by drills, milling and lathe tools can actually melt the plastic.
So slower speeds and lighter cuts should be the order of the day when using machines on styrene , especially if attempting to drill out plastic rod on a lathe. The plastic is liable to melt onto the drill bit.

[Bugatti Fan]

Further to my last post a thought. If a potentiometer could be used between the mains electricity socket and the machine, this would enable variation to the machine speed for slowing it down for plastics machining independent of the machine's own gearing.