In article , "Ian Middleton"
says...
snip
I cut a curved bath panel, removing about an inch at the bottom, by marking
a line with a permenant marker on front side, applying clear selotape both
sides, scoring with a sharp knife along required line (front side only) and
cutting with a fret saw with a fine blade. Tooks ages with no breakages or
cracks or chips but then it only need to be done once, but once correctly.
Could have used a jigsaw with a fine blade, but that would have required
cutting from the back of the pannel to prevent chipping but that would have
been difficult to get the saw in due to the curve of the panel.


That's going to take a while with half inch acrylic :-)