Club Night Report
Wednesday 13th April 2022
Club Night Photos for 11th May 2022 - Club Demonstrator - David Branscombe
David's demonstration for the evening was the turning of a thin-walled bowl - suitable for piercing. This is a challenging task as the wall needs to be both thin and a constant thickness. The blank was approx. 6" diameter by 3" thick in dry Ash. David stated that he hoped to be able to complete the entire project using just two 1/2" bowl gouges - one with swept back wings and the other with a basic 45-degree angle with a 60-degree cutting edge.
The bowl was turned conventionally - mounted between centres or more securely on a faceplate - to rough and finish the outside bowl shape, along with a foot and a mounting tenon. The part was then mounted via the tenon in a 4-jaw chuck. Different hollowing techniques were discussed and demonstrated - with emphasis on supporting the bowl, as the wall was thinned and flexing would be a problem. The inside of the bowl was finish turned and sanded.
The final action was to remove the mounting tenon. There are multiple ways of accomplishing this task. David showed the use of a support former in the chuck with some router matting and tailstock support to hold the bowl in position. The final 'nub' would be removed by hand.
After the break, David showed a different technique where the bowl would be completed in just two operations - and a mounting tenon would not be used. The first action was to mount the bowl blank on a faceplate and to turn the entire outside shape and foot. Special consideration and machining was carried out where the foot blended into the bowl shape. This was necessary as the foot profile would be used to mount the bowl for the second operation, via a set of custom shaped wooden jaws mounted on a 4-jaw chuck. The bowl was held in the custom jaws and the inside was roughed and finished.
David provided us with an excellent evening, showing bowl turning techniques and design features - entertaining and informative. Thank you Dave!
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The display table was well supported with a large and varied number of interesting items.
Martin Barrett provided a number of items ranging from burr edge bowls, cocktail 'V' shaped goblets to a small vase and a lidded box.
Richard Branscome displayed a pierced rim platter and some advice on checking the flatness of a bowl/ platter base, along with a miniature pestle and mortar made in Corian.
Ken Crittle shared a spiral stem, lidded goblet made in pine and a larger goblet with a decorated bowl and captive rings.
Ken Gately showed his 'fairy mushrooms' - which consisted of a burr block with multiple shaped mushroom and hedgehogs.
Bill Savage showed a tri-cornered bowl made in yew and a hand-chased threaded 'acorn box' with a decorated and stained lid, made in boxwood.
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