RogerS
Established Member
Just starting to work with these. I have a template jig with various size holes and both even and odd guide bushes. Trying to work out what size template hole and what size guide bush and what size router bit to produce a hole of specific diamater is a bit of a tease.
I think the formula is template hole size - guide bush diameter + cutter diameter = final hole size. But then I look at the Trend site and their guide bush calculator starts talking about offsets and doesn't seem to help me much.
Am I right? Trial and error cuts suggests so but that could be by more luck than judgement!
I think the formula is template hole size - guide bush diameter + cutter diameter = final hole size. But then I look at the Trend site and their guide bush calculator starts talking about offsets and doesn't seem to help me much.
Am I right? Trial and error cuts suggests so but that could be by more luck than judgement!