Drilling

Commercially available twist drills(for metal) always have to be polished properly before using them on acrylic.

Please bear in mind the following points when drilling:

•Place the drill slowly and carefully when you start drilling.

•Slow the feed just before the bit exits the bottom surface. The aim is to ease the drill through gently (possibly place a sheet of wood underneath).

•Use tap water for cooling. Commercially available step drills and conical drills have proved especially suitable when working on site with a manual drill.

Step drill

This one-edged drill does not leave any chatter marks and guarantees clean cylindrical bores. With each subsequent drilling step, the hole is simultaneously chamfered.

Conical drill

The drill holes are slightly conical, but there is no chipping on the exit side of the hole.Pay attention to a triple-edge design.

Routing

The drill holes are slightly conical, but there is no chipping on the exit side of the hole. Pay attention to a triple-edge design.

•Only use immaculate, sharp cutters

•The cutter shaft must be inserted in the collet chuck deep enough to fill this completely

•The workpieces must always be firmly clamped. If possible, start by cutting a larger workpiece and then sawing it into smaller sections

•Always guide the workpiece against the cutting direction (opposed routing)

•Perform a trial cut on a piece of cast acrylic sheet and check the setting of the overhead template router.

Tip

The cast acrylic sheet are protected by polyethylene films. The masking film must be left on the clear-transparent side of the sheet until it is put to its final use, and should normally be left on the sheet underside until machining is completed. If the masking film is no longer in place,the area to be machined should be covered with parcel tape.

Sawing

The standard machines used for wood and metalworking are suitable for machining cast acrylic sheet. Non-vibrating high-speed machines provide clean cut edges.

Circular handsaws and circular table saws

When cutting cast acrylic sheet to size, the blades of circular handsaws or of circular table saw should protrude only slightly beyond the sheet.

•Always use carbide-tipped saw blades

•Teeth：trapezoidal flat tooth or alternate teeth

•Tooth pitch：- 13mm

•Carefully saw into the sheet with the saw running

•Make sure the cutting is exact

•Do not tilt the material

•Fix the sheets to avoid flutter

•Saw at ab average feet rate

Jigsaws

•Only use saw blades with straight teeth and a tooth pitch of 2.5mm

•Only tackle the workpiece with the saw running

•Place the shoe firmly on the masking film of the sheet

•Set an average cutting speed and adjust stroke action to zero

•Select average feed rate

•Cool with tap water

•Prevent water from splashing the machine

Tip

Cool thoroughly with water,especially when working with spiral drills conical drills,compass saws and jigsaws.