Tablet stand with IBM ThinkPad keyboard and TrackPoint.

The back provides space for a keyboard controller and other electronics. Size could be adjusted to accommodate a Raspberry Pi, for example.

For sturdiness, 3D printed parts are joined with carbon rods.

Print the STL files, then follow the videos:

• Assembly 1/3
• Assembly 2/3
• Assembly 3/3
• Mounting Lenovo IdeaPad
• Mounting iPad
• Test

Suggestion: First make a test print to check if the channels fit the carbon rods.

Parts

• 3D prints. Pictured parts have been printed on a Stratatys Dimension SST 1200es in ABS at 10 mils resolution. They have been designed, however, to also print on RepRaps, MakerBots, etc.
• 6 mm carbon rods, available for example at Modulor as item #251865.
• IBM ThinkPad X40/X41 keyboard
• 3M Bumpons, h = 3.5 mm, ø 12.7 mm (Modulor #303791)
• Foam rubber sealing strip, self-adhesive 2 × 10 mm, black (Modulor #317464L)
• M2 × 5 mm screws, available as ThinkPad spare parts
• 3 mm cord (Modulor #4178085L)
• Cord lock (Modulor #224788)
• Double cord locks (Modulor #222851)

Rhino 3D file

For construction rules, see Notes inside the Rhino 3D file. Referenced from that file are models available on GrabCAD:

• ThinkPad X4x keyboard & TrackPoint.
• Cord lock
• 3M Bumpon SJ5012

To open the file, as of mid 2014, you may download a 90 days trial version of Rhino. Please help me lobby for a free maker edition of Rhino.