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I call this turning a simple bowl because
I am not using any special tools just bowl gouges and spindle gouges.
The shape is a simple one also. I know that when you first start turning
bowls trying to get the surface cut cleanly on the end grain areas
can present a problem. Reversing the bowl to finish the bottom can
also present a challenge.
I hope that this tutorial will help answer
a few questions on turning a cross grain oriented bowl.
I band saw
this blank round from a 3 ½” thick slab of dry ambrosia maple. This
is a 6” diameter blank. I have the center point of the blank marked
where I used dividers to scribe the circle for cutting. |
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The blank compressed between the chuck
jaws and the tailstock center. Stuart Batty demonstrated this technique
for our turning clubs. This technique works well for blanks cut from
even thickness slabs in bowl and platter turning.
If you are using
a swivel headstock lathe, make sure the head and tailstock align
to each other or the blank could walk off the chuck jaws because of
uneven
contact pressure. This method of holding a blank between centers
relies on the two points of contact being on parallel planes. |
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I start rough shaping the bowl shape from
the tailstock end. I oriented the blank with the wood I want to be
at the bottom of the bowl on the tailstock end on purpose. I have more
room to turn down to a small diameter on the tailstock side than the
headstock side. This makes turning the tenon for the chuck or faceplate
easier.
Start removing the corner of the blank. I am using a side ground
bowl gouge, 5/8” diameter shaft. Using a pulling cut with the gouge
near horizontal and the flute of the gouge facing the direction of
cut. The bevel of the gouge is not riding on the wood in this cut.
The unevenness of the blank will need removed before the bevel can
rub. |
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I have my left hand near the gouge tip
and pull the gouge toward me. |
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Using an overhand push grip for a little
more strength behind the cut. Put pressure down on the tool rest and
steady pressure and control in the line of cut. |
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Close up of the roughing cut gouge and
wood contact. The shaving comes off the lower tip and side of the gouge
depending on the depth of cut. |
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Taking a lighter finishing cut with the
bowl gouge angled higher up on the blank with the bevel near the rubbing.
The shaving comes off the lower tip of the gouge. |
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The shavings produced from the finishing cut. The finish
cut is a shearing type cut and can produce fine tight curled shavings. |
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The torn endgrain area of the blank left
after using a heavy roughing cut with the bowl gouge. This area needs
to be gone over with a freshly sharpened tool and light cuts to get
past the depth of the torn grain.
Torn grain like this will not sand
away. This area will always have a different look and feel to the
rest of the cleanly cut wood if you try to sand instead of cut the
wood
fibers.
I am not trying to get the finished surface of the bowl at
this point. After I reverse the bowl into the chuck jaws, I will
turn the finished surface. |