Need routing advice for tight places

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Forum topic by MT_Stringer posted 08-02-2012 04:37 PM 3172 views 0 times favorited 6 replies Add to Favorites Watch
View MT_Stringer's profile


3168 posts in 3229 days

08-02-2012 04:37 PM

Simply put, how can I rout into tight places with a round over bit?

I cut a star out of a piece of 1/2 inch wood that is about 4.5 inches across so the points of the star are too tight for a 3/8” round over bit because of the ball bearing. I am routing the inside of the star.

What I wound up doing was finished off the round over process with a couple of files and some sand paper folded to get into the tight corners. Thank goodness the wood was soft and easy to work with.

I really would like to have a router bit to run around the inside all in one operation, but…

Your advice is appreciated.

Here is a pic of what I am trying to explain.

-- Handcrafted by Mike Henderson - Channelview, Texas

6 replies so far

View Sawkerf's profile


1730 posts in 3066 days

#1 posted 08-02-2012 05:31 PM

I’ve seen roundover bits with a small diameter pilot shaft instead of a bearing. You can get closer to a corner, but not all the way.

-- Adversity doesn't build reveals it.

View NiteWalker's profile


2737 posts in 2574 days

#2 posted 08-02-2012 07:03 PM

Yep, brass piloted roundover bits exist, and work well, but you’ll still need to do some hand work.

If you want to be able to do the entire piece with the router, you’s have to make sure the inside radius of the points is rounded enough for the bearing or pilot to fit in.

-- He who dies with the most tools... dies with the emptiest wallet.

View MT_Stringer's profile


3168 posts in 3229 days

#3 posted 08-02-2012 07:30 PM

Thanks for the advice. Now if I can only find a bit that will work. I will search later. I might have to modify my star for the next one.

-- Handcrafted by Mike Henderson - Channelview, Texas

View crank49's profile


4030 posts in 2969 days

#4 posted 08-02-2012 07:30 PM

Perfectly simple job for a chisel.
Especially one with the correct profile.

View Bernie's profile


422 posts in 2835 days

#5 posted 08-03-2012 02:29 AM

Yes – chisel for any corners. If you got in tight with your router, a straight edge chisel is now your best friend. Take a 1/8 or 1/4 chisel, square off your corners and slide the chisel over the round ends. with a smooth slide, your corners will be perfect. Use sandpaper as the final touch.

-- Bernie: It never gets hot or cold in New Hampshire, just seasonal!

View David Dean's profile

David Dean

608 posts in 2897 days

#6 posted 08-03-2012 02:53 AM

Do you you have a demal tool they got all the bell’s and whisles if you are going to do alote of the kind of work.

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