Summary

3D Printable Breakout frame which mechanically adopts Raspberry Pi models A and B which have two mount holes to MLAB (http://wiki.mlab.cz/) electronic prototyping and development system.
The holder uses the M2.5 screws for fastening the RaspberryPi board to the breakout frame.

The breakout frame accepts standard M3x12mm screws and nuts which are used normally in MLAB system.

Instructions

The breakout frame is designed to be easily printable on almost all 3D FDM printers, it can be printed from ABS or PLA plastic with good result. But an inspection of trace placement in thin walls is required after slicing.

The model has bottom holes for nuts covered by one layer of material. This technological material allows slicing software to plan a bridge over all holes. The bridge layer must be drilled of after printing by a 3mm drill the 2.7mm drill would be used for drilling the Raspberry Pi mounting holes.

Hexagonal nuts should be inserted from bottom side to the prepared holes. Two M2.5x12mm screws for mount the Raspberry Pi board should be screwed from the top side.

Other file formats and thing up to date sources are freely available from MLAB's SVN Repository. The MLAB's dural base board is available there http://www.ust.cz/shop/product_info.php?products_id=177 as example.

Raspberry Pi breakout frame for MLAB