Given the original X, y, and Z axis arrangements on the liquid handler, we decided that inverting the Z-axis would make it easier to mount the print head or any other device, to the axis. The way the z-axis mounts to the y-axis made this a simple process. It was necessary to slightly modify the internals of the z-axis but nothing that will effect its operation. Once the axis was inverted, two linear slides were mounted on accent sides. A universal mounting plate was created using simple aluminum c-channel.. the plate couples the two linear slides to the arm of the z-axis, allows for very sturdy movement in Z, with little induced error.

In this drawing, the left most part of the drawing is the z-axis arm itself, with the linear slides installed. It only about the lower 1/3rd of the entire arm, but was all I needed for the drawing. The middle drawing is the side view of the c-channel, as it would mount to the arm on the left. Yhe right drawing it the top view. The larger holes on the top view represent threaded holes to mount devices to the axis, which initially will likely be the Makerbot Mk7 print head.

I need to double check the dimensions again but onces checked, the machining will go quickly thanks to the DRO on the Bridgeport.