Disclosure - don't work for them, but I've met them at Noisebridge and perused the design. I've also built my own 3D printer, so I know a little about these things. The Type A design is a very good design! It's built for low moving head mass, thus high printing speed, but without the disadvantages of a Bowden cable.
Not a bad machine, still uses the laser-cut-plywood and screws approach that I don't particularly like.
I also went the build-my-own route because about the time my "buy silly toys" fund was up to where I could buy one, anything with a useable build envelope had a price increase pushing it beyond what I wanted to spend, and I wasn't really happy with the designs -- I really don't like that plywood & screw style construction. Using my own design allowed me to get away from those issues.
Actually, when I met him at Noisebridge, Andrew gave me permission to do a knock-off machine designed to be cut on smaller bed laser cutters. I think the design is open, but not on the website.
http://typeamachines.com/details
Disclosure - don't work for them, but I've met them at Noisebridge and perused the design. I've also built my own 3D printer, so I know a little about these things. The Type A design is a very good design! It's built for low moving head mass, thus high printing speed, but without the disadvantages of a Bowden cable.