|Rough edges must go.|
|Using a surface gauge to mark the trim line.|
Then it was on to planishing the cylinder portion of the bowl. The hemishpere was pretty well done yesterday but there were a lot of raising marks that needed to be smoothed out. In the process I also made sure that the cylinder didn't have any dips or bulges or waves left over from when the shape was being formed. Normally this would be done on a cylinder stake of a size that matched the curve. But I don't have one and didn't have time to make one. So I improvised with the 3" sphere stake, my large raising stake, and a process where I gridded off the cylinder into 8 columns and three rows and worked them over in sequence by columns from bottom to top. As each area got planished it also got blended with the areas below and behind it. By the end of the process, I had a smooth cylinder. Then the foot got a little attention and the whole thing was planished and ready to prepare for chasing.
|All planished and shiny.|
I'd been annealing this bowl frequently for two days. Somehow it had escaped me that when it was quenched after annealing and before pickling it didn't look the way copper usually does. After pickling it looked like normal copper, a lovely pale pink. But before that it looked oddly bronze-ish and mottled. Well, after this pickling I wanted to scrub it up nice and clean so layout lines would show up well. That's when I noticed that the scrubbed parts looked golden yellow, not coppery. What the...? A quick check with a file on a piece of the sheared off edge confirmed it. I've been working 16 gauge brass for two days. No wonder I was getting tired!
Yep. I'm an idiot.
With that out of the way I filled the bowl with wax and left it to cool while I had dinner. Tomorrow I'll do the layout of the flutes and see if I can get them chased in before the day is done.
|Ready to fill.|
|Filled and cooling.|