At last! I finished it... I put together the trackpoint from a Lenovo Thinkpad USB keyboard with trackpoint with a Cherry 80-3000 keyboard.
So now I'm one of the few in the world with a mechanical keyboard with trackpoint. :)
(And probably the only one with a Cherry MX clear keyboard with the latest generation of trackpoint in it. :D )
My work can be seen on the following link to my Picasa album.
http://picasaweb.google.com/k.peter.mattsson/CherryG803000LQCWithLatestGenerationTrackpoint#Any questions will gladly be answered here.... :)
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Some linked pictures:
Three keyboards are going to be one. From top:
Cherry G80-3000LQCDE-2 (Brand new)
Lenovo Thinkpad USB with Trackpoint Keyboard (Brand new)
IBM Trackpoint USB Space Saver Keyboard (refurbished)
Lenovo Thinkpad USB trackpoint keyboard opened and seen from underneath. USB controller is already detached. Trackpoint unit is located under the metal plate in the centre of the keyboard.
Drinking coffee... and whiskey! You have to have coffee and whiskey while drilling the hole for a trackpoint in a Cherry keyboard... :)
Separated the membrane layers of Lenovo Thinkpad USB trackpoint keyboard.
Trackpoint unit from the Lenovo Thinkpad USB keyboard.
Cut the membrane to minimum. The buttons only use three conductors (signals) on one layer and one conductor (ground) on the other layer.
Cut the membrane to minimum. The buttons only use three conductors (signals) on one layer and one conductor (ground) on the other layer.
Some soldering were necessary since I drilled of some conductors.
Cherry MX Clears with a hole between them.
Lenovo Thinkpad USB keyboard and Trackpoint USB controller
Stick from the IBM board.
Buttons with hole made in them for the rubber cap.
When cutting of the stick of the IBM trackpoint keyboard it broke in the top. Fixed it with some epoxy.
I don't know what material the stick is made of. But it is rock hard. It took three cutting wheels on my Dremel to get through. And even then it managed to crack?!
Buttons mounted... four screws should do it. :)
IBM stick glued with epoxy to the Lenovo trackpoint unit.
Trackpoint unit and USB controller mounted to the Cherry board.
Everything put together. Glued a plastic part to the cherry shell above the trackpoint mouse buttons to hide the membrane. Not the most beautiful solution. But it works. Also twisted the two USB cables (One for the Cherry keybord controller and one for the trackpoint controller.) and connected these to an USB hub. Also this is not the most beautiful solution, but it gets the work done. The original thought were to build in the USB hub into the cherry keyboard and have a mini USB connector on the back of it...
On the label it says "Refer to manual for proper installation." .... that is what I've done... right?