Roundover with eccentric radius - Router Forums
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post #1 of 12 (permalink) Old 02-12-2018, 08:37 PM Thread Starter
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Default Roundover with eccentric radius

Hello,

I'm trying to match the roundover on a baseboard from my old Victorian house. I'm not well-versed in router bit profiles and what I think I'm looking for I've not seen anywhere. Essentially, the profile looks like a roundover, but it's eccentric. Basically, it forms a complex curve where the starting radius is 5/8" and the ending radius is about 13/16". I don't intend to match it exactly, but I can't find anything that might qualify as a round-over with an eccentric / variable radius of any size.

Can anyone suggest what sort of bit profile I might need to accomplish this?
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post #2 of 12 (permalink) Old 02-12-2018, 10:06 PM
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Victorian house, eh? I'm thinking molding plane rather than router bit.
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post #3 of 12 (permalink) Old 02-13-2018, 12:23 AM
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It looks to me that the radius may be uniform but there is a flat on the bottom of it past the radius. An ovolo bit like this one can cut that but you might need a straight bit to lengthen the flat part on a second cut. https://www.jccayer.com/1-4-radius-o...SABEgI__fD_BwE Ovolo bits come in a variety of sizes. You'll either need to use it in a table with fence or use an edge guide with the router.

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post #4 of 12 (permalink) Old 02-13-2018, 08:35 AM
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How about this bit https://www.toolstoday.com/table-edg...8699757319CA8B perhaps with this bearing https://www.toolstoday.com/steel-bal...F6FB7F1279F719 with 1/16 inch roundover (corner rounding)?

And, @Joel Graff Welcome to RouterForums. It would be helpful if you filled out your profile so we could have some idea about how and where you do woodworking?
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post #5 of 12 (permalink) Old 02-13-2018, 09:05 AM
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I would have thought that the bit suggested by Tom is as close as you're likely to find.
The roundover bit shown but with a smaller bearing (readily available) really as good as it gets and is available in several radii.
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post #6 of 12 (permalink) Old 02-13-2018, 10:01 AM
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Hey Chuck,
Thanks for posting that bit from J.C. Cayer, they are located less than an hour from me and have all these wonderful tools. I looked through a couple of tools like routers and dust collection and saw both my King router and my King D/C.
I go to Ottawa regularly for business and I will be stopping there for it's on my way. I saw the Bosch and Hitachi routers also. I didn't know about this place, thanks.
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post #7 of 12 (permalink) Old 02-13-2018, 10:46 AM
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Yup; I just bought my Bosch plunge base from them. My only caution is that a lot of the catalogue items adon't seem to actually be stocked(?)...they bring it in as they're ordered, or something.
Online Supply does something similar; doesn't really slow the mailorder process down it seems.
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post #8 of 12 (permalink) Old 02-14-2018, 12:31 AM
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Welcome to the forum Joel.

Ross,
Rockhampton, Queensland, Australia


Enjoy the knowledge of others that can be found within.

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post #9 of 12 (permalink) Old 02-14-2018, 12:39 AM
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That's the bit that I was going to say. Should work for you but you have to do on a router table. Not a hand held router. From TWheels
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post #10 of 12 (permalink) Old 02-14-2018, 01:31 AM
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Quote:
Originally Posted by Danman1957 View Post
Hey Chuck,
Thanks for posting that bit from J.C. Cayer, they are located less than an hour from me and have all these wonderful tools. I looked through a couple of tools like routers and dust collection and saw both my King router and my King D/C.
I go to Ottawa regularly for business and I will be stopping there for it's on my way. I saw the Bosch and Hitachi routers also. I didn't know about this place, thanks.
Cheers,
Dan
It was a lucky accident then Dan. I searched for an ovolo bit and clicked the first one that looked good. Their prices look pretty decent.

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