This is the complete tutorial for construction of the Slidee carriage. The construction photos, Slidee controller circuit and software can be downloaded from http://sourceforge.net/projects/slidee and you are invited to add and enhance this opensource project.
Sources for aluminum beam and mounting blocks: servocity.com
Miniature bearings: vxb.com
Screws etc: Local hardware store
Spacers: amazon.com (search "spacers")
Equipment needed
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1) A hacksaw or a low speed Miter/Chop saw with metal cutting blade
2) Screwdriver
3) Hand drill or Power drill
4) Drill bits
6) Felt tip pen/Pencil
8) Countersink or deburring tool
Software used for 3D CAD: Autodesk Inventor 2013
Music sound tracks are by incompetech.com