I am baffled by a routing problem I have and wondered if anyone else
had "been there" too.
I am routing out an ovular opening on a piece of ply using a template
guide and the foot plate of the router (not a bearing guide).
When I commence the rout I plunge into the center of the oval (waste)
then move to the edge to be cut and complete the rout. When
inspecting the new hole the point where the bit first touched the
proper cut line has an out-dent beyond where the template should allow
the cut to go.
The base of the router has good support all the way round so it
appears unlikely that the bit is cutting at anything other than 90
degrees to the surface.
Does anyone have any suggestions as to what may be happening?