Big Bowls !

Rick, Him Hiltz, Miles, Chris, Paul

Some People brought in large blanks for turning.

Leo discussed the various paints: House paint vs Artists Craft paint vs Airbrush paints.
The differences is in the size of the pigment granules which matter as to whether the lines get blocked up in the spray gun.

If you paint using the whiting/bond/paint approach, be sure to start the sanding with coarse grain paper or the result  is a finish that is uneven

Leo demonstrated a simple jig for drilling  a log on the drill press: see photos. The jig is usable as a small stool as well!

Leo demonstrated how to use a jig on the lathe to drill angled holes at even distributions (indexed)

Rick mounted his large bowl using the spider chuck but it was too big for the machining jig-he has to start it using  hand power and a big gouge

Leos'Ammonia finished bowls

Jig to find leg height

Drill press jig-Blank is screwed on from top

Angle drilling using lathe and indexer

Ricks Bowl

Drilling on lathe

Potpourri

Paul, Jim MacLean, Jim Hiltz, Rick, Chris and Miles


Leo did some explaining of techniques for surfacing wood prior to painting:

Shellac + whiting mixed into a paste (add a little yellow core, or other pigment (don't use Tempra)) can be applied to the wood, evened out, then let dry.
(Whiting is sifted lime stone)

Then sand it down.  Use coarse paper  to wet sand with methyl hydrate--this takes  the high thick layer off quickly.
Continue with finer grade paper until the surface is smooth
Then dry sand to the finest finish

Alternatively:
Bond + whiting
Acrylic paint thickened with whiting

The result is a hard surface that is smooth and ready for spray painting or other finish including shellac, lacquer

Leo used Behr interior enamel house paint--brown colour

If you spray the acrylic paint it has to be diluted with water very thinly so as to go through the airbrush system.

Leo showed how to polish a finish using:
sand paper up to 10000
Pumice
Rottenstone
Cerium oxide

Finally waxing with Carnuba:  rub the carnuba in using leather-a leather glove would work

CRL Cerium Oxide is a high grade optical polishing compound used to lessen and polish scratches from mirror bevels, table top edges, glass in vehicles or structures. CRL Cerium Oxide is mixed with water to form a paste or slurry. This compound has excellent suspension qualities and will not harden. Contains no zinc oxide, and meets most local disposal ordinances. This Cerium Oxide Compound can be used with a hand pad for light surface cleanup, powered hand devices for scratch and surface repair, mechanized scrubbers in mirror silvering lines, or as the final polishing step in multi-stage edging and beveling equipment.

Leo suggested we all do a small bowl or vase so as we can practice this paint finishing technique.

We agreed to bring large blanks next session for bowl turning on the bowl lathe.