Why are the small diameter P-C tempate guides the standard?
When I first started learning about how very useful routers are, by watching the Router Workshop, I noted that the table inserts have 1 3/4 in counterbore with 1 1/2 in through bore. These table inserts were available from Oak Park, as were a whole set of template guides. Now that Oak Park has gotten out of the router business, the only place I know of to get the Oak Park sized template guides are Lee Valley, and they have only a few of the sizes formerly sold by OakPark. The smaller diameter 1 3/16 in Porter-Cable guides now by default are the standard.
However, even the largest Oak Park template guides are still not Harry's 40 mm template guide, although close.
The 1 1/2 inch opening works well for 90% of the router work (fun?) I did, but there were always those larger diameter bits such as some of the round over bits, classical bits, Ogee bits, Roman Ogee bits, Chamfer bits, with 3/4 in carbide height that are close to 2 inches diameter.
I would like to call on the router manufacturers and marketers to go to something along the lines of table inserts/base plates with 60 mm (~2 3/8 in) counterbore, 55 mm (~2 1/8 in) through bore, and for someone to produce 60 mm overall diameter template guides with the 6 mm(1/4 in) high guides of various guide diameters graduated along the lines of those that used to be sold by Oak Park, except now with some larger diameters including the 40 mm guides used by Harry and his router ski disciples, of whom in my head I am one and very soon want to be with my hands.
Then plate inserts of 60 mm outer diameter with various diameter openings can be used to minimize the size of the opening around the smaller diameter bits.
I think what I have proposed would work well for 99% of my router work, except when I am using obviously larger diameter bits such as the raised panel bits.
Vegetarian Arthritic Paraplegic Wannabe Routerologist The RouterForums member formerly known as mftha or th-alton
"Teach your children what we have taught ours, that the earth is our mother. Whatever befalls the earth befalls the sons of the earth. The earth does not belong to man; man belongs to the earth. Man did not weave the web of life; he is merely a strand in it. We do not inherit the earth from our ancestors; we borrow it from our children."
-attributed to Chief Seattle of the Native American Suquamish Tribe
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