Router Circle Cutting Jig by ebredder

Last crawled date: 3 years ago

Customizable Router Circle Cutting Jig
This is a 2D OpenSCAD model that can be manipulated to create a 3 layer CNC/laser cut model for creating a circle cutting jig for a standard router or plunge router. Using a long bolt I cut off the end, welded a jamb nut to it, and ground the end to a point.
Here are the variables:
jiglength=length from center to center of concentric circles of jigbit=diameter of the bit or template bit used on routercontour=radius of smaller concentric circle on outside of jig
holedia=diameter of mounting holesholenum=number of holes for mountingholedist=distance from the center of the router to the center of the mounting holesholeangle=change the rotation/orientation of the mounting holes around the center
trackbolt=width of the sliding track, needs to be adjusted a few times to accept the nut and boltrouterbaseRAD=radius of the router basepadding= area around the outside of the router base
res=resolution if extruding to 3D
I extruded everything to DXF for proper manipulation.
Using this handle to lock the pin in place: http://www.thingiverse.com/thing:1879190
I also countersunk the mounting holes so the heads of the bolts did not scratch the work piece. I then sanded and applied 2 coats of varnish/linseed oil mix.