Universal Router table (or bandsaw) insert

thingiverse

Router mounting plates feature a substantial hole that allows the bit to protrude from the table surface. This hole is designed to accommodate a plastic insert with various inner holes matching the bit being used. Unfortunately, these inserts come at an exorbitant price. Enter the OuterDiameter of your insert hole, the RimDiameter of the inner hole, and LipDepth of the insert, along with the OverallThickness you want for this insert, and the BitDiameter of the center hole. The resulting STL file will enable you to print these inserts as needed. If you don't require a central hole, set the BitDiameter to zero. SCAD expects dimensions in millimeters, but an alternative SCAD file (RouterInsertInches.SCAD) is available for those who prefer to work with inches. To begin, use a caliper to measure the specified values for your table and adjust accordingly for a precise fit. I used PLA with excellent results. These inserts also prove useful for bandsaw table inserts, although they must be sliced first to utilize them effectively. This SCAD program is remarkably straightforward, making it an ideal starting point for those new to SCAD. As this is a simple yet functional program, I created it to address the lack of existing solutions for this purpose.