thingiverse
An adjustable tablet stand that will support just about any tablet. Confirmed to comfortably hold the Motorola Xoom, the Samsung Galaxy Tab 2 7.0 and all versions of the Apple iPad.
Based off of TheBFR's model: http://www.thingiverse.com/thing:15337
Instructions
Print 2 Universal Stands.
Print 2 Ratcheted Stabilizing Bars
Attach the bars into the stands providing enough space to comfortably seat your device.
The parts were printed using a MakerBot Replicator.
Direct link to the original creator's page
Click the "View on thingiverse" button above to visit the original model page on thingiverse. You can download the STL file directly from the creator's page for free.
This STL file is compatible with most FDM 3D printers (Creality Ender 3, Prusa MK3S+, Bambu Lab, etc.) and resin printers (Elegoo, Anycubic). Check the original page for recommended print settings and materials.
Yes, this model is available as a free download on thingiverse. Some creators accept tips or donations.
Most STL files can be modified using free software like Blender, TinkerCAD, or Meshmixer. Check the license on the original thingiverse page to see if modifications are permitted by the creator.