The X carriage is designed to run across the two X rails. This provides the stability needed for the high acceleration required for high quality plasma cuts.
I will be adding four shaft flange clamps to hold the Z axis in place. This is my first time doing this kind of Z to X mount. So only testing the completed assembly will prove this idea, or not.
X Carriage Plate
The X carriage plate is a 8" x 13" x 1/2" plate. It was intended that this be made from 1/2" aluminum. For now mine is done in 1/2" Corian.
The plate is placed on the top of two 20mm extended trucks.
It is easier to build the X carriage in-place. I do this by adding the two extend trucks to the X rails. I then attach the plate to the trucks with some 6mm x 20mm machine screws.
I designed a pocket into the X carriage plate to hold a bearing. The idea it to help support the Z axis ACME screw.
I'm not really sure this is needed so I will be testing with and without the bearing.
Secure the Plate
The plate is held in-place with 8 M6x20mm screws.
Z Shaft Supports
The four, Z axis shaft supports are added to the X carriage and secured with 2 1/4-20 x 1.5" bolts and nuts on each set of supports.
At this point they are only thumb tightened.
X Axis ACME Nut
I added my 1/2" 5 start ACME nut to the carriage. While this wont be used for a while its a good time to get it into place.
Things are starting to shape up. Next , I will build the Z axis.