Demonsration by Margaret Garrard
An interesting and very informative demonstartion by club member and professional woodturner Margaret Garrard.
Margaret started out by talking through some of her work on display and exploring different design possibilities when making boxes, some clever ideas such as using a ball for a lid.
Margaret started at the lathe by mounting a cube of wood between centres, then forming a spigot using a spindle gouge to avoid any tear out as would happen using a parting tool. A Spindle gouge should give a good clean cut if sharp and used correctly. Form chucking point with dovetail spigot with the aid of a skew chisel.
Mount in a chuck. Repeat the process on the other end whilst mounted in the chuck. Now part of and saw to a 2/3 to 1/3 size piece. Mount the 2/3 portion back in the chuck. Drill into end grain with a spindle gouge, then start to open up with the gouge. Mark line on end to work and continue to hollow with light for assistance. A Simon hope hollowing tool was used to form a nice rounded hole. Margaret also demonstrated how to obtain a good finish with a scraper. Once a good curved bottom is achieved, hand sand. Take time and care when sanding to achieve a, good even finish 150-320 grits. Margaret advised to wear a suitable dust mask and use extraction. Sand the rim taking extra care especially near the square edges. Margaret then applied some texture to the flat surfaces, using a powered texturing tool. Texture each face evenly with a criss cross pattern. Remove any hairy bits with a fine wire brush. Spray a little lacquer onto the texture surface to help seal it and prevent any more loose fibres.
Form a jam chuck to accept the square base. Pull up tailstock and remove extra material to base using the same method as truing up at the start of the project to avoid tearout. Make sure the square section is flat but a slight undercut can be formed on the inner section to help the box sit evenly. Carefully sand the endgrain as previously.
Forming the top. Drill a 8-10 mm hole in the endgrain. Rough down with a spindle roughing gouge working from the centre outwards. Turn down to 60mm diameter. Mark positions of the top, part down at headstock end to start forming the shape. Using a spindle gouge work from high to low to form shape required. Margaret swapped to left handed use for the top shape. Sand up 120-320.
Mark datum lines to allow for re-alignment when re fixing the base later.
Remount in the chuck to allow for hollowing from the bottom. Drill the end with spindle gouge then hollow with spindle gouge, to meet the drilled hole. Continue to hollow to match external shape. Place masking tape on hollowing tool as a guide for depth. Get the datum marked wood and form a tapered plug to fit snugly into the hole at the base. Glue base in place.
Reverse again to refine top. Ensuring the super glue is properly set. Go for a coffee.
Gradually and gently widen and hollow the top lip.
Mount custom jig in jaws to hold hollow form. Pull up tailstock to centre wood and tighten jubilee clip to securely hold hollow form.
Gently trim up bottom shape to pencil lines. Sand up base to help disguise the join form a small bead or vee. Slacken the jig and remove the hollow form and reverse to finally form the opening lip. Sand opening to finish.