Update: Best way to router-radius corners

[rdesigns]

Thanks to replies I got here, I can report an excellent solution that does not involve clamping or fussing.

I made a template (about 8" x 8") of 1/4" one-sided melamine (mdf core), which I coated with a thin layer of clear silicone for increased friction on the side that contacts the work. I glued guide fences on  two sides to position it, and drilled a thumb hole near the corner opposite the radius. (Similar to the one JMB gave a link for, but one-sided.)

I bought the DeWalt DWP611 compact router (thanks, Ken),  for which I made a new acrylic extended base with a dust scoop on the back side.  For the vacuum hose connection, it happens that 3/4 PVC pipe fits perfectly inside the Festool 27mm vacuum hose, and super-glues snugly into the 1/4"-thick acrylic. (I started with a 1" hole, and enlarged it with a half-round rasp for a snug fit.)

In use, the combination is quick and sure. You position the template and use the thumb hole to keep it tight onto the corner, and use the other hand to bring the router up to do its thing. No dust, no wasted time.

 

[duburban]

Could you post a photo of this rig?

 

[Sparktrician]

Sounds to me that you've duplicated the function of a Woodpeckers Radius Quick Jig.  Is this a good assumption? 

 

[fdengel]

That Woodpeckers jig looks rather nice... but I don't think I'd trust to get my finger quite that close to a moving router bit.

I wonder if there is a way to make something similar that clamps down somehow without getting in the way...

 

[PeterK]

I have used the Woodhaven plastic radius guides for several years. Price is right. No muss, no fuss. Easy and always felt safe.

 

[rdesigns]

Sounds to me that you've duplicated the function of a Woodpeckers Radius Quick Jig.  Is this a good assumption?  

Yes, except that the plate on mine is large enough to be placed on the top side of the panel I'm radiusing and still leave room for the compact router and expose the thumb hole which is used to keep the jig positioned.

Edit:  I should also have mentioned that mine is not intended primarily for use with a table-monted router, although it could be used that way. My need was mainle to radius corners of large panels.