
In an attempt to cut a large radius nosing for some mantels I’m making, I’m in process of making a router trammel to support the bit in a constant arc. Made from 3/4 ply, my inspiration is based off an old Fine Woodworking article and tablesaw trunions. I still need to mount it to a stable base, fit a router and bit and the fire it up…
I’ll post more when I make some sawdust.
Tom
-- Anybody can become a woodworker, but only a Craftsman can hide his mistakes.

















13 comments so far
Peter Oxley
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1424 posts in 2070 days
#1 posted 1900 days ago
That is much, much simpler than what I was thinking! Looks like it will work great!
-- http://www.peteroxley.com -- http://north40studios.etsy.com --
brunob
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2274 posts in 2365 days
#2 posted 1900 days ago
What a great solution. I’ll have to file this one.
-- Bruce from Central New York...now, if you'll pardon me, I have some sawdust to make.
Scott Bryan
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27253 posts in 2018 days
#3 posted 1900 days ago
Hi Tom,
That looks like an interesting jig. I need to do something similar both with some molding around the hearth to hid a 1/2 gap where the flooring and masonry meet and a mantle (that I promised several Christmases ago).
-- Challenges are what make life interesting; overcoming them is what makes life meaningful- Joshua Marine
Tim Pursell
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481 posts in 1978 days
#4 posted 1900 days ago
Good jobTom!
Ingenuity is mandatory when working wood.
You has it!
-- http://www.etsy.com/shop/tpursell?ref=si_shop
tenontim
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2130 posts in 1940 days
#5 posted 1900 days ago
That should work. Necessity is the mother of invention.
-- Tim-- http://www.tmuli.com
GaryK
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10263 posts in 2184 days
#6 posted 1900 days ago
Looks like you just need a 1 1/2 bottom flattening bit and you’re ready to go.
-- Gary - Never pass up the opportunity to make a mistake look like you planned it that way - Tyler, TX
cajunpen
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12940 posts in 2261 days
#7 posted 1900 days ago
Very clever jig.
-- Bill - "Suit yourself and let the rest be pleased." http://www.cajunpen.com/
DJSTEIN
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1 post in 1899 days
#8 posted 1899 days ago
GREAT DESIGN
jcees
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913 posts in 1995 days
#9 posted 1898 days ago
Yeah, I remember that article in FWW. A simple elegant answer to NOT having a shaper/moulder. Show us some sawdust flying next time.
always,
J.C.
-- When one tugs at a single thing in nature, he finds it attached to the rest of the world. -- John Muir
fredf
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495 posts in 1906 days
#10 posted 1881 days ago
tom, that profile is pretty close to that of log cabin siding. our camp is sided with something very similar to that but of course one of the laps is reversed, unfortunately the mill discontinued that style years ago. others still do make a thicker version, how ever. I would ASSUME that the profile would be done in multiple passes, so if you could find a mill that does that siding, you might be able to put the face profile on something else for you
fred
-- Fred, Springfield, Ma
Garry
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63 posts in 2447 days
#11 posted 1860 days ago
Great Jig, Thanks for showing us
-- Garry, Engadine, Michigan (Upper Peninsula)
SteveKorz
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2119 posts in 1910 days
#12 posted 1823 days ago
That’s pretty cool, Tom. How did it work out?
-- As iron sharpens iron, so one man sharpens another. (Proverbs 27:17) †
Tom Adamski
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306 posts in 1967 days
#13 posted 1823 days ago
Thanks for askig Steve. It worked out well enough to complete the job, but it was slow going… I can’t complain though, it would have cost me an arm & a leg to have knives made and mouldings cut. If you want to see it work, check out this video I uploaded a while ago… http://lumberjocks.com/jocks/naperville/blog/4105
Tom
-- Anybody can become a woodworker, but only a Craftsman can hide his mistakes.
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