The Importance Of The Spoil Board With Plastic Routing
Plastic routing is often used with ABS, which is a material that has been used in consumer products such as auto/truck components for years. This material can be trimmed by custom router bits to create instrument panels, headliners, grilles, wheel covers, decorative trim, mirror housings, truck bed liners and bumper farings. Small and large appliances are also made of ABS and trimmed with CNC plastic routing machines, as well as refrigerator door liners, business machine and electronic housings, luggage, toys, storage bins and flower pots.
The process is quite different compared to composite routing and other techniques, since materials made of ABS (Acrylonitrile Butadiene Styrene) are quite unique. The plastic routing process can be easily accomplished, however, with the correct fixturing, clamping or firm holding of the material before the spindle is turned on. Custom router bits are set up on the CNC routers, accompanied by elaborate vacuum systems. The spoil board is often overlooked, though, which can be very handy in the process of holding the parts firmly and creating the best finished piece in a short period of time.
When using a spoil board for the plastic routing of ABS, it is vital to think past the typical piece of MDF or particleboard with self-stick weather-stripping and a few holes drilled inside the perimeter, which is often used. This is not always the best fixture when using custom route bits at high production speeds, since it is not able to satisfy those heavy demands. If a plastic routing machine is going to run at production speed, the parts must not move, so a spoil board should groove the interior of the gasket to allow a vacuum to reach the outermost portion of the part, with holes drilled at the intersection. When it comes to routing in general, whether you are dealing with composite routing or plastic, it is important not to underestimate the importance of the spoil board.