Heavens Eagle
Well-known member
I ran across this as one of my co-workers dad used to create and do jewelry castings. This device is for getting the air bubbles out of the investment (casting medium) before it sets up. G-Factor probably has something that does this same thing and probably resembles it for doing his bronze castings.
Anyway, you can tell it is quite old. I like antiques like this that can be put back into use and made to look interesting as well. The old guy was a bit sentimental about it I think, but when he sees the photos of it redone he should feel good in that it got a good home.
Here are the photos.
The main use of this will be to get as many air bubbles out of the rubber molds as possible. This is important and lately has been more of a pain with the more complex items I have been making. I will also use it to try and get the little air bubbles out of the resin before it starts to set up. Basically it pulls a vacuum which makes the tiny air bubbles get huge where they rise and pop. Then release the vacuum and the returning ambient air pressure pushes the rubber for the mold or resin for a new part into all the little nooks and crannys that the bubbles were vacated from. Of course it will need a little experimentation at first.
But first things first, lets get it all put back into nice clean condition and get the defunct seals replaced on the vac pump Don't need any big oil leaks of that beast.
If there is something you would like me to cover in more detail, let me know. I am just taking a few photos of this in passing and creating the build as I go.
Thanks for looking in!
Anyway, you can tell it is quite old. I like antiques like this that can be put back into use and made to look interesting as well. The old guy was a bit sentimental about it I think, but when he sees the photos of it redone he should feel good in that it got a good home.
Here are the photos.
The main use of this will be to get as many air bubbles out of the rubber molds as possible. This is important and lately has been more of a pain with the more complex items I have been making. I will also use it to try and get the little air bubbles out of the resin before it starts to set up. Basically it pulls a vacuum which makes the tiny air bubbles get huge where they rise and pop. Then release the vacuum and the returning ambient air pressure pushes the rubber for the mold or resin for a new part into all the little nooks and crannys that the bubbles were vacated from. Of course it will need a little experimentation at first.
But first things first, lets get it all put back into nice clean condition and get the defunct seals replaced on the vac pump Don't need any big oil leaks of that beast.
If there is something you would like me to cover in more detail, let me know. I am just taking a few photos of this in passing and creating the build as I go.
Thanks for looking in!