[Adillo303]

I am making a cutting board for a friend. He wants a grease ring, I have never done one before. I got out the trim router and made the ring. I used a 1/4" bull nose bit 1/4" deep. He wants it deep.

Anyway, I have a few burn marks in the grooves. I am at as losses for how to sand them out. I would appreciate any ideas.

Thank you
Andy

 

[sawdustfactory]

Try a convex scraper.

 

[Dave Paine]

+1 with Sawdustfactory. Scraping may be easier than sanding.

http://www.woodcraft.com/product/2020022/28386/lynx-convex-cabinet-scraper-set-2.aspx

You could try another final very light pass.

If you do have to sand, likely need to wrap the abrasive around your finger unless you can make a piece of scrap to match the inside curvature.

 

[Adillo303]

Thank you. These are a great idea, I will definitely order a set. My problem of the moment is that I am too deliver the board Monday.

 

[ryan50hrl]

Sand paper and your finger.

 

[Adillo303]

I tried sand paper and my finger. The channel is too narrow for my finger. I rolled the sandpaper and got limited successes. I am going to get some 1/4 " Dowell and try plugging the sandpaper around that.

 

[Steve Neul]

Can you set the router slightly deeper and make a quicker pass. Usually when you stop or go too slow it burns. The router would be a lot less work than sanding.

 

[woodnthings]

make a new light pass

Sharpen the 2 sides of the carbide using a flat diamond hone. I do this all the time with good results. The cheaper carbide bits, and I have some, don't hold their edge for long and need a tune up occasionally.
Instructions here:
http://www.highlandwoodworking.com/careandsharpeningofrouterbits.aspx

 

[cabinetman]

This is where carving tools can be handy. Running another pass even slightly deeper may not help when most burning happens when you stop or turn corners. It may clear it out, or my not and just burn again. Maybe try cleaning your bit.

.

 

[knotscott]

In the future I would cut your groove just a tad shy, and make a quick final pass to help reduce the burning. A clean sharp bit will help too.

 

[Adillo303]

He is what I did and it did'nt work out too badly.

I put my spigot jaws on the lathe and turned down about an inch of 1/4" Dowell a little bit. Wrapped that with double stick tape, sandpaper over that. Putt it in my drill and sanded the groove.

Whomever said that the bit may be dull was probably right. Maybe I should have used a full size router instead of a trim router. I will definitely get those scrapers.

Thank you all for the help.