I recently saw a mirror with a transparent 12mm thick perspex frame. The mirror was the same size as the frame which was about 60mm broad so the frame wasn't actually a frame more a 60mm wide transparent border The one piece perspex frame had perfectly square inside corners and I wondered how they had been cut. Anyone any ideas ?

On Monday, June 27, 2016 at 1:17:37 PM UTC+1, fred wrote:
I recently saw a mirror with a transparent 12mm thick perspex frame. The mirror was the same size as the frame which was about 60mm broad so the frame wasn't actually a frame more a 60mm wide transparent border The one piece perspex frame had perfectly square inside corners and I wondered how they had been cut. Anyone any ideas ?

Laser? CNC tends to round the corners

On 6/27/2016 1:29 PM, Adam Aglionby wrote:
On Monday, June 27, 2016 at 1:17:37 PM UTC+1, fred wrote:
I recently saw a mirror with a transparent 12mm thick perspex frame. The mirror was the same size as the frame which was about 60mm broad so the frame wasn't actually a frame more a 60mm wide transparent border The one piece perspex frame had perfectly square inside corners and I wondered how they had been cut. Anyone any ideas ?

Laser? CNC tends to round the corners

Perhaps more likely moulded, if a mass produced item. You can of course
machine this geometry using an end mill, in two passes per corner.