The tie-fighter keyboard allows you type in a neutral, handshake position with your arms and shoulders supporting your hands. I consider this to be one of the lowest stress positions. As you can't look down to the see the keys, you do need to touch type to do use this; typing in passwords can, admittedly, be a bit frustrating but I'll take that over sore wrists any day.
I figure that we evolved, among other things, to pick berries rather than typing on a keyboard all day long. The tie-fighter vertical keyboard position is a lot closer to a berry-picking position than a standard keyboard.
Check out my other various ergonomic Instructables: Ergonomic Work Station, Stand Up Desk, Standing Desk, and Create an Ergonomic Standing Desk and Office on the Go.
Step 1: Motivation and Parts
However, my keyboard, a Goldtouch, only goes to about 30 degrees. So, in comparison to the mice, it is essentially flat. This position has been incrementally bothering me more and more.
Goldtouch Keyboard - they seem to run $150 new, so grab one on Ebay. I've bought several, all in great condition and some even new, for $30-$50 each.
wood - 2x4, 2x3, whatever scrap you have lying around
2 outdoor adjustable light fixtures
Step 2: Disassemble the Goldtouch
Remove the screws and take off the bottom half of the case. Remove the screws holding the ball joint in place.
Step 3: Estimate Position
Luckily, there seems to be just enough extra wire to accommodate this positioning.
Type for a little bit to convince yourself this isn't a totally crazy idea.
Step 4: Cut the Case
Step 5: Try This First -- Argh! It's Terrible.
The resulting keyboard position was terrible, as you can see by the bent wrists required to use it. So, I knew that I needed it to be adjustable.
Step 6: Substitute Ball Joint
Take two light fixtures, remove the internal light bulb mount, and cut off the housing around that mount. I used a hacksaw, cut the housing off, and then filed any remaining material leaving a flat surface. Drill holes and bolt two of these together with the adjusters 90 degrees out of phase. Their screw mounts give you freedom of movement in the roll direction on both sides of the keyboard, one toothed adjuster gives pitch, and the other gives jaw freedom of movement.
Since I already had the 2x4's mounted to my keyboard, I cut them apart and screwed on pieces of plywood to attach the light fixture's screw mounts.
I held my hands at neutral, had someone measure their position, and then adjusted the keyboard into that position.
Step 7: Type!
I've been typing on this thing for a few months, and I'm pretty happy with it. My hands feel fine after a reasonable work session. Sometimes, I do still have trouble finding the square bracket keys. However, as with any piece of computer interface hardware, I think it's just a new and different way to damage yourself, so I'm careful to maintain stretch breaks and limits on use.