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Steinberger-style Pivot Plate?

I built a pivot for my Spirit XT, a couple months ago. What a great improvement in comfort and balance. The pivot was always one of the features that I thought was so cool in the original Steinberger designs.
I built mine from 1/4" aluminum a thrust bearing and some commonly available hardware and strap buttons. I have about $20 in materials into it. I'm a pretty good woodworker, but don't have a lot of experience with metal working. The aluminum is soft enough that I could use a lot of woodworking tools (power and hand tools). I spent a lot of time researching, designing (engineering) and looking for hardware, as I didn't have a pivot to use as an example.
I thought about offering them for sale, but there is a lot of time involved! I learned that template shaping, filing and sanding aluminum isn't hard, but takes a lot of time when you don't have metal working tools.
Like Bruce said, it might be worth it for someone to run a batch of 5-10, especially if you have access to computer aided cutters and boring equipment. Getting the bends right was a little tricky without some type of a brake. I had to use a bench vice and a big long pipe clamp as a lever to make the bends.
I have templates and material lists, and resources if anyone is interested.
As a tip... I used a big ass suction cup, hung from a rough plywood template, on the back of my bass to find the pivot point. I found that my center of balance was slightly north of the neck line which countered the tendency for the bass to tip forward.
View attachment 3072330 View attachment 3072331 View attachment 3072332 View attachment 3072333
How did you attach the strap buttons?
With the thrust bearing, can it remain stationary?
 
I built a pivot for my Spirit XT, a couple months ago. What a great improvement in comfort and balance. The pivot was always one of the features that I thought was so cool in the original Steinberger designs.
I built mine from 1/4" aluminum a thrust bearing and some commonly available hardware and strap buttons. I have about $20 in materials into it. I'm a pretty good woodworker, but don't have a lot of experience with metal working. The aluminum is soft enough that I could use a lot of woodworking tools (power and hand tools). I spent a lot of time researching, designing (engineering) and looking for hardware, as I didn't have a pivot to use as an example.
I thought about offering them for sale, but there is a lot of time involved! I learned that template shaping, filing and sanding aluminum isn't hard, but takes a lot of time when you don't have metal working tools.
Like Bruce said, it might be worth it for someone to run a batch of 5-10, especially if you have access to computer aided cutters and boring equipment. Getting the bends right was a little tricky without some type of a brake. I had to use a bench vice and a big long pipe clamp as a lever to make the bends.
I have templates and material lists, and resources if anyone is interested.
As a tip... I used a big ass suction cup, hung from a rough plywood template, on the back of my bass to find the pivot point. I found that my center of balance was slightly north of the neck line which countered the tendency for the bass to tip forward.
View attachment 3072330 View attachment 3072331 View attachment 3072332 View attachment 3072333
Awesome Job!
How much would you charge for a template tracing?
 
A few weeks ago I purchased an 80's Steinberger copy from Japan called a "Spaceburger" (Ishibashi Music's in house brand - Mavis) - one of the things that attracted me to it over the Spirit or Hohner variants was it had a Pivot Plate. When it arrived I was more than happy with it. Especially the ergonomic advantages the Pivot Plate provided. Looks like a bit of a MacGyver job.

It appears to be made of something like Pickguard Material, it's presumably over 40 years old and still going strong.View attachment 5489327 View attachment 5489328 View attachment 5489329
SpaceBerger... I absolutely love it. :D Although you know I wish it was SpaceBurger :woot:
 
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