An edge or disc sander will make quick work of this job but be careful; they can just as
quickly cut a facet on the edge and ruin the piece. You can also sand the exterior using
a random orbit sander.
With the bowl sanded round and the band saw marks removed, head to the router table
for some final shaping. Mount a 12,7mm roundover bit in the router and round over the
bottom edge of the bowl.
To rout the top edges of the partitions, mount a 6,35mm roundover in the table, remove
the fence and set the bowl upside down so the bit is inside one of the quadrants. Make
sure the bit is not in contact with the bowl. Turn the router on and rout the inside edge of
the partition. Turn the router off and let it spin down to a stop. Reposition the bowl over
the bit and rout the next partition. Repeat this process for all four partitions and the dip
cup hole. Rout the outside top edge of the bowl with the same bit.
Sand the interior of the bowl using a soft disc. These discs are commonly used by lathe
turners on lathe-turned bowl interiors. Start with 80-grit and work your way up to 220-grit.
Finish sanding the outside with an orbital sander. Now you’re ready to apply a finish.
A great food safe finish for wood is walnut oil. You’ll find it at most health food stores.
It dries hard and is totally non-toxic. Other food safe finishes include mineral oil, salad
bowl finish and shellac.
TM: CMT, the CMT logo and the orange color applied to tool surfaces are trademarks
of C.M.T. UTENSILI S.P.A.
© C.M.T. UTENSILI S.P.A.
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progressively deeper cuts until you reach the bottom of the bowl. Then, sweep the router
back and forth to clean up the bottom. Don’t worry about the slight ridges left by the router
bit. These will clean up easily with a disk sander.
Turn the router off and let it stop before lifting it from the bowl. Move the template to
the next quadrant and repeat the process until all four partitions and the center hole
are complete.
The next step is to lay out the outside wall of the bowl. Set a compass to mark a little
over 12,7mm to allow for sanding. Make sure the compass point extends about 6,35mm
or so past the pencil point.
Hook the pivot point just inside the rim of the bowl and run the compass around the bowl.
Always keep the line from the pencil point to the pivot point perpendicular to the rim.
To bridge the gaps in the outline that occurs at the partitions, bend a thin piece of wood
along the existing lines and pencil in the break.
Take the blank to the bandsaw and cut off the excess stock. Take care to cut up to the
layout line. Go slowly and do your best to make the cut smooth and accurate. It’ll save
you a lot of sanding later.
The bowl will come off the band saw round but rough. Sand the band sawn edge smooth
and fair. A good way to sand the edge on a round bowl is to use a sanding belt. Pencil
marks on the outside edge tell you where the low spots are and where you’ve sanded.
Clamp the bowl blank in a vise (use scrap wood to protect the bowl form iron jaws) and
sand the edge like a shoeshine polishes a shoe.
C.M.T. UTENSILI S.p.A.
Via della Meccanica
61122 Pesaro
Fraz. Chiusa di Ginestreto - Italia
Phone #39 0721 48571
Fax #39 0721 481021
[email protected] www.cmtutensili.com
