Lost Wax Casting: Koi Cuff Bracelet

In my model-making class last week I started a cuff bracelet which will probably take me into the new year. This project will give me something to do during the Christmas break when we're off for a few weeks. I was inspired by a design I saw online here. Pretty ambitious I know, but hey it's something to strive for.

After sawing out a thick block of wax for the cuff bracelet I used the drill press to take out the middle section. I drilled a series of holes around the inner diameter and then cut through the remaining bits of wax with a regular jewellery's saw frame. Then it was time to file, file, file!

For now I'm keeping the cuff quite thick to provide support until all of the design has been carved into the front.  After that it can be hollowed out from the inside to reduce the cost and weight of casting.

Design for new bracelet

Here is the design I plan to use for the bracelet.  I found a nice stencil for a single koi online so I simply mirrored the image and added some more flowers as filler. I sized the design for my bracelet, printed it, and  taped it to the wax cuff for transfering. Using a pin I transferred most of the design onto the wax, leaving out the more intricate details such as the fish scales and the smaller flowers. This took about an hour.

Design transferred to wax using pin-pricks

It took me about 3 hours with the flex-shaft and a set of burs to create a sunken relief for the blackspace in my bracelet (I was way too timid with the burs). The instructor thought this project would take 40 - 50 hours to complete - so far I've put in 7 hours. I'll have to decide just how much fine detail I want in this bracelet but ultimately the plan is to have it ready for casting in January before my courses end.