After a break, would like to show some pictures with post-curing and casting results.
Tomorrow I upload some more- because need to resize them. they are pretty big.
This is silver 925 band below
printing accuracy was 25 microns. Prints were very nice, but after casting they look expanded to the bottow little bit somehow.
last picture is from cell, so the quality is not so good, Anyway result was OK.
Just different diameters of band
after casting result was just so so, but I am happy with final result.
@katkramer
Hello
sure i can share this information
if you want Ii can make a picture of silicones for you which i use. They are different depends on the polishing surface.
After received casting pieces i had electromagnetic polished than filing from rough to medium , silicones, 4 grades of sanding paper, 2 kinds of flame burs, 3 grades of polishing pastes, ceramic polishing + rhodium plating.
Thanks for opinion,
I had a lot of work with polishing of surfaces in that ring because of casting quality.
I am just happy that I had finished it already.
result was better than before.
Maybe i consider to purchase a casting line one day and learn how to do precisely.
I just wated to outsource that process and pay for service.
some surface is very very nice, some is… hm… different. you can see that on the 4.5mm band
maybe also poor investment or burnou process. maybe
but there is a little progress
less bubbles on the surface
this is another casting company
just want to add important information: prints were very clean. Each one separated in polybag.
The older Castable Resin, when cured correctly, is more “clear,” so you can see through it. The new Castable Resin, is not clear (opaque), so you can see problems easier. I am guessing that you also do traditional wax working with your jewelry? Ferris Wax, or even wax injection wax, is not transparent, so when you create a ring, it is easier to see the design and detail.
See the difference between the clear resin and the red plastic in the picture below? You can see more detail in the red one, which looks a lot like injection wax.
I recently started doing castings and I can tell you it takes some practice to get comfortable doing it.
I wished it would take an hour or two so I could pour and see the results but it doesn’t happen that way.
I learned to be patience so I can get good results.
Now that I am comfortable with casting I don’t think it is difficult, “If you know what your are doing”
I did not take any classes about casting. I had read and talked to jewelers that did my castings, that is
how I leaned. I finally took that leap of faith.
First thing, you are dealing with high heat so make sure you have the right equipment so you don’t get burn.
1 de-bubbling the investment after mixing is the first thing and as long as you have good vacuum there is not much to it.
2 burn-out cycle, stick with what is recommended for the resin. If the furnace is manual just keep track of the time to bring the temperature up or down.
3 if you use a digital metal melter just keep an eye until it reaches melting temperature.
I feel those are the major things to understand.
After doing it 4-5 times I felt good about it.
