OK brass etch results: failure but positive outlook.
So I grabbed the fresh ferric chloride from work and tried it out tonight. Unfortunately I think the dead stuff I used last night may have degraded the toner on the brass as it seemed to have dried out and started peeling off in areas before I started tonight.
Here's the brass etch pattern:
And here are the results:
- Centurion_WIP_18.jpg (48.84 KiB) Viewed 12819 times
- Centurion_WIP_19.jpg (45.38 KiB) Viewed 12819 times
As you can see, there was definite correct etching. It's a little zealous in spots where the toner has lifted, even though I probably could have left it etching for a bit longer to get a deeper relief. You can see that it etched all the way through behind some of the big logo with the wreath - this is because I had damaged the coating sprayed on the back to prevent it etching from that side.
So like I said, I feel confident enough to give it one more try. I think I've almost for the ironing the toner onto the brass technique sorted (could do with a little longer heating this time). The green stuff you see is the leftover toner.
Oh yeah I can make that....