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Lidded Boxes #10: Ambrosia Maple and Brazilian Cherry Bowls

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Blog entry by HappyHowie posted 12-14-2016 07:42 AM 1010 reads 0 times favorited 1 comment Add to Favorites Watch
« Part 9: Sharpening Bowl Gouge Part 10 of Lidded Boxes series Part 11: Lucky and Unlucky at the Same Moment »

Prior to today I have turned the outside of seven bowl blanks. Two of these bowls I had turned previously. The remaining five I turned each of their outside curves and shapes waiting to turn the insides altogether.

This morning I began turning the inside of two bowls; the ambrosia maple and the Brazilian cherry. The grains of these two woods are very different. The ambrosia maple is much softer and grainy; whereas the Brazilian cherry is almost waxy. It was two very different experiences turning today. I made sure my gouges were sharp before starting each bowl.

I first determined the depth I would cut the bowl. I marked my 3/8” drill bit with a red Sharpie pen. With my Jacob’s chuck I drilled my depth hole.

I have heard on an instructional video that a 1/4” wall thickness is a good setting for a functional wood bowl. I have no knowledge about that but I took the advice as someone with more experience than I.

With this first bowl I had some difficulty keeping the four jaw chuck on my tenon firmly. I decided to take thin cuts and gingerly remove materials. I have since watched a long introduction to turning video by Lyle Jamieson. In his video he made the point that a four jaw chuck is first made as a whole piece and then is cut. The distance between the jaws is the kerf of the blade that cut it into four jaws. Thus, the most strength the jaw has is when it is set to its nearly round shape before it was cut into four parts. I had set my tenons to a diameter a bit larger than this. I have reset my calipers for the next bowl I turn. I will make sure my new bowl tenons will fit firmer into my Nova four jaw chuck. I have to get by with what I have now.

After getting my bowl shaped and virtually to the wall thickness I was wanting, I used scrapper chisels.

Using a paper towel with some Zinsser seal coat thinned to one pound cut, I applied the sanding sealer to the newly turned surfaces of this bowl. Soon afterwards I buffed on carnauba wax.

I had an easier time with the Brazilian cherry tenon in my Nova chuck. This bowl was much thinner or smaller in depth but as wide as my small lathe can allow. I completed this bowl in the same manner as the ambrosia maple bowl.

I will wait to finish the feet on these bowls until I have all seven completed to the same state.

-- --- Happy Howie



1 comment so far

View Roger's profile

Roger

20871 posts in 2555 days


#1 posted 12-18-2016 10:13 PM

Absolutely beauties

-- Roger from KY. Work/Play/Travel Safe. Keep your dust collector fed. Kentuk55@yahoo.com

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