|Project by rilanda||posted 09-08-2012 07:42 PM||1252 views||1 time favorited||4 comments|
This is a pedestal bowl made from spalted Beech; it makes a nice centre point on a table with either fruit or wooden fruit on it. It can also be used for displaying other food as the finish I have used is a food safe finish however, I would not recommend that the bowl should be washed, it can of course be cleaned using Olive oil sparingly.
Made from 4 separate pieces of wood 1 – the bowl; 2 – bowl support; 3 – pedestal; 4 – base.
The bowl is turned firstly using a face plate to turn the underside with a 6 mm deep recess of 65mm diameter to take the jaws of my expansion chuck when returned to the lathe for the hollowing of the bowl recess.
The bowl support is drilled in the centre and turned of a screw chuck to produce a spigot to fit the recess in the underside of the bowl then returned back to the lathe gripping this spigot in a chuck. A 25mm diameter hole is drilled 10mm deep using a chuck in my tailstock and a suitable Forstner bit, the remainder is turned to a finish.
The underside of the base can be planed up before being drilled with a pilot drill for the screw chuck and mounted on the lathe; it is drilled in the same way as the bowl support and then turned to a finish on the screw chuck.
The pedestal is turned between centres with a 25mm x 9mm long spigot on both ends and the remainder turned to a finish
Assembly is carried out by assembling the base, pedestal and bowl support together using PVA and a single screw through the same hole as that used fro the screw chuck; note I prefer to assemble this with the grain on the base at 90 degrees to the grain on the bowl support.
Assemble the bowl with the bowl support using PVA only and a heavy weight, the bowl is placed upside down on a soft pad on the bench top and the weight placed on the bottom. This is assembled with the grain in the base and the bowl in the same direction, making the bowl support and the bowl grain at 90 degrees; this helps to strengthen the bowl.
If you prefer to finish your work on the lathe then you need to do that before any assembly takes place however, I chose to finish outside of the lathe and finished the bowl with 2 coats cellulose sander sealer with 2 spray coats of a clear acrylic lacquer.
photo 1 – top bowl surface; 2 & 3 – finished bowl; 4 – underside of bowl showing grain direction of bowl support and bowl; 5 – bowl viewed from below
-- Bill, Nottingham. Remember its not waiting for the storm to end, but learning to dance in the rain that counts. If you dont make mistakes, you make nothing at all.