Drilling, Screwing and Tapping Perspex
This Kitronik University course is part of the working with materials course, and covers aspects of drilling, tapping and screwing Perspex.
Conventional twist drills for use with wood are also suitable for use with Perspex, and hole saws may be used for larger holes greater than 12mm in diameter.
A small pilot hole should be drilled first to locate the drill, and where possible the work should be supported by a backstop made from either scrap Perspex or wood to prevent splintering of the exit hole. A drill press works well as it ensures good alignment and controlled pressure.
The use of coolants is recommended for any deep drilling, and swarf should be removed at regular intervals.
Screwing and tapping Perspex
Perspex can be tapped for threaded screws. Standard taps and dies may be used for cutting screw threads into Perspex. The use of lubricants is essential.
If an item is only being assembled once then self tapping screws may be used at your own risk.
Wherever possible, coarse threads are preferred as they are less liable to damage.
If frequently dismantling, threaded metal inserts would be recommended.