Club Night Report
Wednesday 13th August 2025
Club Night Photos for Wednesday 13th August 2025 - Guest Demonstrator: Jason Breach
The demonstrator for the August 2025 meeting was a welcome return of Jason Breach who last visited us in May 2024.Jason's demonstration for the evening was announced as the making of a "An Offset Bowl in a Thin Rim Disk." Jason handed round a couple of examples of completed items he had made previously and the 8" diameter by 3" thick ash blank he was going to be working on. He pointed out the two mounting holes for a screw chuck - aligned along the grain and approx. 20 mm apart.
The blank was mounted on a screw chuck, held in a 4-jaw chuck, on the central hole - with tailstock support, and trued to round. The part was roughed out from both sides to leave a raised rim, that was approx. ¾" wide. The edge was sanded through the grits and then painted with Rustins Quick Dry blackboard paint.
The part was unmounted from the central screw chucking point, and re-mounted on the offset chucking hole. The front face was trued and a 58 mm diameter spigot was marked out with a parting tool. The lower bowl shape and the rim thickness were roughed out. The part was reversed and mounted on the spigot in the 4-jaw chuck. Note: the screw chuck mount - which fits the 'C' jaws on the Axminster chuck, was left in position. The upper part of the bowl was roughed out and the rim further refined. The part was again reversed and held on the screw chuck mount. The lower bowl shape and the rim were finish turned. Particular care was taken with the turning of the area where the rim meets the bowl and to get the rim flat. This was sanded through the grits to 500 grit utilising a block to hold the abrasive along with a rotary sander on the bowl.
The part was removed from the screw chuck, reversed and mounted on the spigot. The upper bowl shape was finish turned and blended into the rim - and finish sanded as before. The bowl was hollowed using bowl and spindle gouges - with callipers being used to check the wall thickness. The inside of the bowl was finish sanded.
A large (loose fitting) 'jam' chuck was mounted in the 4-jaw chuck. The tailstock was used to accurately align the part on the jam chuck. A large amount of plastic insulation tape was wound around the bowl to firmly secure it to the jam chuck. The spigot was turned off and the area was blended into the bowl shape, and finish sanded.
The remaining work was to produce the 'offset rim.' This was achieved by unmounting the bowl by removing the insulation tape. A shaped block, held securely on two dowels, was added to the rim of the jam chuck. The bowl was reversed and remounted in the jam chuck, against the raised block. Care was taken to accurately align the grain of the rim to provide maximum strength when pressed against the block. A padded tailstock centre was used to hold the part securely in the jam chuck. The top edge of the upper bowl was then (carefully) turned square to the centre line of the lathe. The edge was sanded and then painted black - and any excess paint cleaned up as necessary.
The completed part would typically have a finish applied whilst not on the lathe. Jason suggested a spray acrylic lacquer or wax or finishing oil would all be suitable.
Tonight, we were treated to another fine display of creativity, precise tool control, techniques, skill, hints and tips, to generate a unique piece of woodturning - something to be proud of for anyone who cares to copy it.
Thank you, Jason!
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The Display Table was well supported and showed a number of items...
The main event was the judging of the entries in Frans Brown's 'Cone Clock' challenge. There were seven individual entries and Frans was pleased to award the prize for the one that most 'grabbed his attention' to Graham Furze for his clock on a bark base, with a finial style turned cone. Martin Barrett showed a sycamore bowl that he had adorned with an inset, green glittery band. Tim Mortimer presented a simple walnut bowl. Roger Hoare displayed a hollow, sculptured, spiral box in purple heart - that he had made a 'while ago.' Arthur Kingdon showed a tazza made from pau rosa with an African blackwood stem that had been carved to feature an open spiral. He also showed a selection of laminated veneer pendants, made on his rose engine. Also on display was a finely carved feather writing quill (in oak) and old-fashioned square inkpot made by Bill Savage - which unfortunately, was not photographed. |
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