David Huang

Excellent!  Thanks Andres.

Isn't there supposed to be a link or something in this thread to actually provide access to this?

Ok, I just upped my pledge to account for the reduction by someone else so I can still be the one to bring it to $15,000.

Looks like I was the one to push it over $15,000.    I look forward to seeing the new deck of cards.

Here's a follow up post to my BB submission above.  As I noted in my BB the sinking of a bowl was just the first stage in what I intended for the piece.  I've now finished doing all the decorative chasing work, added a wire rim, patina, and interior gold leaf.

I was invited yesterday to write a haiku as part of a visiting artist workshop.  I've never done this before, but in thinking about it this morning I realized the process also has me seeking out and contemplating a subject that I'm grateful for.  Here's my attempt:

Wide smile bright eyes
fuzzy butt wiggling fast
I am welcomed home

It was tax day for me.  I'm certainly grateful to now have my state and federal income taxes done and ready to mail out in the morning!  While crunching the numbers for my business use of my vehicle I noted that I drove less than 4000 miles last year.  To me this is a win since I live in a rural setting where I need to travel to get pretty much anywhere.   I put plenty of miles on the bike though, which makes me grateful to have a nice e-bike!

Today I'm feeling grateful to live in a time and place where I have such vast access to information, knowledge, and resources.  The opportunities to select a subject, research it, and then be able to acquire with reasonable ease the materials and tools required to put such study to use are vast.  I should probably be taking more advantage of this than I do.  I am grateful to have the opportunities.

Hey Chris,  I heartily commend you for jumping in and trying a BB others haven't done, which you don't have experience with either!  Challenging one's self and learning new skills is a big part of what SKIP is all about!  I did find it funny that you were taking this one on at the very time I was as well, both thinking we'd be the first to do it.    

I did get my submission posted a little while ago.  You can find it here:  https://permies.com/wiki/145273/pep-metalworking/Sink-small-bowl-spoon-metalworking#2851424

I probably spent an hour and a half sinking my bowl, but then I also know what I'm doing and have all the tools and supplies set up and at hand.  My issue with the point values is just my sense of what is involved with your ring compared to some of the other metalworking BBs that are good for only 1 point.  However, that isn't your fault.  What you did does seem to fit the sinking BB as it is written.  I'd just suggest someone might want to consider editing the BB.  If it were me I'd actually make them two BBs, one for the sinking a bowl and one for making a functional spoon or ladle.  While I see that the techniques generally involved are related I also see them as involving quite different issues.  But that's just me.

Here is a link to my prior submission for raising a bowl.  https://permies.com/wiki/145929/pep-metalworking/Raising-Small-Bowl-metalworking-wood#1161906

To quick highlight some of the differences between sinking and raising, with sinking you generally are hammering on what will be the inside of the bowl, stretching the metal down and thinning it out in the process.  With raising you are hammering on what will be the outside of the bowl, bending and raising the sides up, actually compressing the metal to some degree, making it a bit thicker.  Though with raising it is quite common to also be thinning it a bit at points to end up with the result of the metal staying basically the same thickness as you started with.  I actually did document my raised piece even more extensively than I posted here on Permies.  If interested you can see and read it all here on my website.  https://davidhuang.org/david-huangs-studio/start-to-finish-making-luminous-relic-1752/

Again, cheers to you jumping in and trying out some metalwork!  Keep at it!

I've been meaning to do this BB for some time now since what I do for a living is craft metal bowls/vessels.  However, the technique I am almost always using is raising rather than sinking.  (Of course I have already done the raising BB!)  Sinking is different in several ways one of which is that the process stretches the metal out, making it thinner.  

On this particular project I'm working on this is what I needed to start out. There's a quirk of metal suppliers here in the US, where I am, such that I can easily get sheets of silver that are 6 inches wide.  However, if I want anything wider I need to jump up to 12 inches in width for which I pay a premium per ounce price.  If I want wider than 12 inches I'm out of luck and will need to manufacture the sheet myself.

Anyway, for this piece I essentially want an 8 inch disk of 18 gauge fine silver.  The most cost effective way for me to do this is to purchase a 6 x 6 inch sheet of silver that is thicker and has the same basic weight of metal in it as that 8 inch disk would have.  I calculated this to be 12 gauge.  So that is my starting material, a 6 x 6 inch square of 12 gauge fine silver sheet.  From here I scribed out my disk and cut the corners off, filing the edges to remove any sharp burs.  

My sheet came in a softened state so I didn't need to anneal initially though I did between each subsequent course of sinking.  I took it to my sinking stump and did the initial round of sinking utilizing a specialty metalsmithing hammer designed just for this sort of work.  I actually don't much like using that hammer as the head is just too long.  The length is very handy to have when the bowl starts developing depth, but it is very hard on the wrists to control.  I actually ended up using my normal raising hammer for most of the work, switching to the deep sinking hammer when I got to the deepest middle sections of the bowl.

My goal with the sinking work was not to actually end up with a finished piece.  Instead I was just looking to get the vessel form started and thin the 12 gauge sheet down to something more around 18 gauge.  With sinking the starting circumference doesn't change much, unlike raising which will compress the metal and reduce the circumference.  So to tell when I was where I wanted to be I was checking the measurements of overall height/depth plus the width, wanting them to equal around 8 inch total.  In the end I went for a bit more, ending up around 6.25" x 2.5", because it wasn't visually looking like what I'm used to seeing when working with 8 inch diameter pieces to start with.  At this point I have finished the later raising courses for this piece getting to measurements of about 4 inches high by 4 inches wide, just what I was aiming for.  Now I'm going to spend the real time chasing in detailed designs.  I may post a photo of the finished piece later once it's done.

For this BB though here are my documentation images for the sinking work.  Personally I feel like it should only be approved for 2 points of the potential 6, if it's even deemed worthy of approval.  It is a very basic job of sinking a bowl with hardly any refinement, and not even that much depth compared to what is possible with this technique.