I built a pick and place machine so I could build up my Motobrain project easier. I used MDF for the platforms. 12mm rail and linear bearings for the Y and Z axis bearings. THK linear motion guide for the X axis. The Z axis is a piece of carbon fiber tubing attached to a piece of laser cut acrylic. The nipples on the tube are 3D printed.
The laser cutting was done by OSHStencils.com. The bearings were purchased at Amazon. The 3D printing was done by approto.com.