I did have a chance to find your case refurbishment post earlier this week and read through quite a bit but not all of it yet. I started by taking some videos and photos as I disassembled the case that came with the 1923 EBIC alto sax. The case was in pretty sad shape so I knew early on that I would not be able to save it without some major work.
I took lots of measurements of the existing case and pulled the interior rot out of the way to look at the fasteners. Nearly all of the case hardware uses split leg rivets (two different sizes - smaller on the top and bottom where the corner protectors are connected). They also used clinch nails similar to an escutcheon nail rather than split leg rivets in some of the corner protectors.
Just about every sax case of that era that I've seen had a missing, repaired or replaced handle. I ended up finding a source on eBay that sells a nice leather handle that is connected using a shackle horseshoe D-ring (usually used on purses and handbags). Rather than removing the shackle from the horseshoe (very similar to a hinge rod) I ended up re-using the handle mounting brackets when I rebuilt the case. It was a big chore removing all of the original hardware from the case - lots of fun digging out the split leg rivets as I'm sure you have already experienced. The original wood was probably salvageable, but very mildewed and damaged from some mystery liquid. I ended up just building a new box with 1/2 inch plywood for sides and 1/4 inch pressed wood for the top and bottom. Believe it or not, the original top and bottom was a very similar 1/4 inch pressed wood to what I got at the big box store. The interior of the case was not padded very much, and what was there looked to be something similar to carpet pad (chatGPT tells me it was likely some type of horse hair based fiber).
The original case covering is likely more closely matched as something like bookbinders cloth - that or maybe a black oil painted canvas covering. I went with black Tolex and it turned out pretty well. I found out the hard way that the additional thickness of the Tolex made the closures on the front of the case slightly offset just enough that it doesn't close that well. I re-used the steel band around the top of the lid and with the extra layer of Tolex wrapped around it, it probably sticks out an extra 3-4 mm - just enough to make it difficult to close.
Like you, I quickly learned that too much foam padding made the case difficult to close. I ended up re-doing the interior multiple times until I found a combination I liked. I ended up using 3M spray adhesive and contact cement to mount the velour fabric to a hard foam called EVA Craft Foam. I used 10 mm foam on the bottom of the case, with Tite-Foam sprayed on top of that with the saxophone wrapped in clear plastic. The velour was then mounted over the two foams and then glued to the bottom. I also discovered that wrapping a 2 mm EVA craft foam with the velour worked great for the insides of the case - an added benefit is that you can make a long strip and cut it in half with scissors after covering it and speed up the wrapping and gluing process slightly. The storage box inside the case seems easy, but I learned that you want to wait to put it into the case until you have the holes drilled for the ribbon that holds the top of the storage case from opening too far. If not, you'll need something like a flex shaft to drill that hole. You also don't want to drill the holes for the ribbon with the velour fabric already glued down - it made a nice twisty mess that I had to repair.
Things I would do differently:
- Don't use the steel band around the top of the case. Looks good, but throws everything off.
- Make the case a closed box and then cut it in half on the table saw - lots of YouTube videos show this method and it probably results in a much better fit.
- Make the case at least an inch larger in all dimensions than the original - you will want the extra space for padding.
- Don't use pop-rivets - I thought it would be fine, but it protrudes about 1/4 inch inside the case and looks bad.
- Don't worry too much about fitment of the Tolex - the corner protectors cover the edges and hide any small flaws.
- Don't worry about re-using the original hardware - it's not easy to find, but there are lots of good sources that I found including Gerstner's for handles, corner protection, duckbill latches, etc. The locking mechanism isn't easily found but likely not necessary. I spent a lot of time with a dremel polishing off the existing hardware after spending way too much time removing old split-leg rivets and clinch nails. Next time I will remove the hardware without worrying as much about trying to keep the old wood, or just use new hardware altogether.
All in all, I probably spent 20-30 hours on this project and easily wasted $100-$200 on materials that I ended up not liking and not using. The fabric for the interior is one of those things that I ended up trying probably 6 different vendors before I found one on Amazon I liked. It still is not a great match - I was hoping for something like a short nap faux fur, but the crushed velour I ended up with was a good color and reasonably good feel. A little too stretchy and doesn't really stick down to the inside of the case where the sax fits into the Tite-Foam/Foam core, but it will have to do.
I have several other cases I plan to build in the next few months including one with a brown faux Alligator Tolex that I'm eager to start when the weather improves. Trying to use spray adhesive outside when it is less than 35 degrees was a challenge.
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