Sunday, 31 July 2011

Jewellery in the Making - Part Four

Preparation is everything before glueing up.

After applying the epoxy with a roller, I loaded up the forma and tightened on f-clamps.

After waiting overnight for the glue to set, the clamps are released and the forma is seperated.

To speed up the finishing process, I used an engineering lathe for sanding the cuff set.

For the finish, I used cellulose sanding sealer and Renaissance wax.  I could not get such a great finish without the engineering lathe.

Friday, 15 July 2011

Jewellery in the Making - Part Three

With the aid of some screws to keep the components from sliding around after glue up, clamp all the pieces together.This was done in several stages to make lining up the components easier.This had to be perfectly aligned.

Finally the components become one.The male forma was made using mdf laminated and then turned on an engineering lathe.

Cutting the forma exactly in half.

Having cut the forma in half, it left the forma with a piece missing - due to the bandsaw blade cut.Glueing veneer back on to the cut edges of the forma replaces the saw cut. Finally, all that is left to do is to protect the forma from coming into contact with glue.A roll of parcel tape works well.

Sunday, 3 July 2011

Jewellery in the Making - Part Two

Replicating parts for the forma
Now that I have a perfect round template, it is time to mark out all of my components for creating the female forma

From here, you have to cut out the waste - first by drilling a couple of large diameter holes on the inside of the line and then, using the jigsaw, cutting out the waste - being careful not to cross the line, but being as close as possible.  Screwing the template to the component and using a 50mm bearing guided straight fluted cutter, clean out the waste - leaving a perfect circle.

After replicating the process with each component, I am now ready to construct my forma.

Part three to follow next week.