We are currently Kickstarting a new MeArm Design!
The MeArm is a Pocket Sized Robot Arm. It's a project started in February 2014, which has had a fantastically fast journey to its present state thanks to it Open Development as an Open Hardware project. Version 0.3 was featured on Instructables back in April 2014 and we've seen it built all over the world, from its home in the UK to the USA, Mexico, Switzerland and Japan to name but a few.
We sell a kit here but all of the files are freely available so you can build your own! We're based in the UK but if you're in the USA check out the Hackaday store here and for global distributors see here.
Before you start with this instructable please check your version!
All of the previous versions and this can be found on thingiverse.
The #meArm was designed with economy in mind. It is understood that laser cutters aren't the most common tools but there are more of them out there now than ever! First you'll need a set of parts. Grab the dxf and use a cnc mill or laser cutter. For the v0.3 we also had people 3D print the parts. If you get a kit from us or order the parts in acrylic you'll have to remove all of the protective covering. It's not the most fun job but the end result is better!
Next you'll need all of the screws and nuts. We use M3 (metric 3mm) standard parts. The number of these to build the latest version is:
Nut x 10
6mm x 9
8mm x 12
10mm x 3
12mm x 7
20mm x 4
Washers x 0 (we removed these as nobody ever used them!!)
You could no doubt find imperial sized counterparts, as a nation you managed to get a man to the moon with foot pounds per square inch so I'll leave the conversions in your capable hands (in case of residents of Liberia or Myamar ignore the bit about the moon).
You'll also need 4 hobby servos. We tend to use the 9g resin gear ones. The metal gear ones with the same footprint are better but they're more expensive.
MeArm is now a commercial operation (when I remember) and we do have complete kits available as well as the component parts.