Step 1. Lost wax Casting reproduction using wax injection. 21083

This is the first step in the reproduction process I use for making my jewelry. The injection machine I have is made by Jelrus/Romanoff. I have the best success injecting at about 12-14 psi.

Category:

Education

Tags:

• Casting
• Jewelry
• jeweler
• wax
• carving
• making
• lost
• model
• designing
• process
• rubber
• mold
• silicon
• injection
• tools

[bekahbabe12]

Hello, i've been doing a lot of lost wax casting jewelry, and I had no idea there was such thing as wax injection machines like this!! Where can I find one? And how do you make the molds??

[hellotoy21]

For the wax injector, you can find them on ebay, sometimes on craigslist and also most of your jewelry tool supply places sell them. I bought mine used for about 1/4 the cost of a new one and it works great. The molds can be made 2 ways. I use a 2 part compound which makes a clear silicon mold. You'll need a vacuum machine for this with the bell jar.

[hellotoy21]

The other way is to make them of vulcanized rubber. You would need a Vulcanizer for this. In either case you will need the appropriate kind of mold frame depending on the machine you choose.

[intunetown]

Nice idea - thanks for your efforts. It would be helpful to have an overview of what you're doing from the beginning. For instance - what is it that you're making? There is no picture of the finished piece. It would be nice to see that at the start so that we know what the goal is.

Also, what are the various machines and costs? You put the piece into the crock pot to de wax it and then the furnace to dewax it? Why two steps? I'm out of room.

Great details, need overview.

[hellotoy21]

The Process is to make jewelry. It can also be used for various other applications. Machine prototype parts, Metal sculpture, etc. The first machine, the crock pot, doesn't remove all of the wax. It just melts out the bulk of it. The second machine is for completely removing the wax and tempering the mold to accept the molten metal. Read the Info boxes for more specifics. If you want more information send me a message and I can elaborate for you.

[stuclouds]

We will be making a large quantity so that is brilliant thank you very much. hopefully once we get started we will try a video of our own. thanks again. Stuart

[hellotoy21]

One more thing, The rings usually cast at a smaller size than the wax so don't forget to accommodate for this when making your rings for the molds. Good luck.

[menappi]

@hellotoy21 Two questions - 1)how many times can you reuse an RTV mold, such as this one? 2) do you need to make some sort of outlet vent/cut so the wax flows properly with no bubbles ? OR does the wax just spray out the front when it's filled up?

[supperstorm]

What kind of wax they use? can you make your own wax?

[hellotoy21]

It depends on how many you going to make. You must resize the ring in wax before you cast or in metal after. What I do when I have a style I'll be making a lot of, I make one of each size in the wax from copies of the original, cast them and copy them to make rubber molds in all whole sizes (5,6,7,8,9,10). This allows me to make lots of rings in lots of sizes quickly. The downside is cost if your only making 2 or 3 copies.