FLA 2x4 Machine - Build Sequence Question

[adt2]

I've been examining the eDrawings provided for the 2x4 machine, and I have a question about build sequencing. What is the general order of assembly for this thing, particularly with regard to the gantry assembly?

There is a router carriage (the assembly that the router mounts to), which moves up and down on what I am calling a Z-carriage, via a lead screw. That whole Z-carriage assembly moves from side-to-side on a gantry assembly.

In looking at the drawing, I can't figure out what order to assemble things in. The router carriage looks like a separate assembly that would just slide onto the Z-carriage, but how do you deal with the leadscrew and threaded nut? Should I mount the low-profile bearing block on the bottom of the riser, then mount the steel plate, then drop the router carriage onto the assembly and thread the rod through the nut until it seats in the bearing block? And then finish the upper portion of the drive assembly (shaft coupling, bearing block, motor mount, etc.)?

I think once I understand how this part goes together, I can deduce the assembly sequence for the Z-carriage-to-gantry assembly as well.

Thanks in advance for your help.

[brtech]

I'm trying to remember exactly how I did my 4 x 4, which has R & P on the Y, but as I recall, I started with the motor mount on the extrusion and the nut on the plate. I assembled the motor, and all the stuff above the shaft coupler. Then I threaded the screw on the nut, put the end bearing on the screw, and then mated the screw to the shaft coupler, sliding the end bearing in place as I did so. That got the whole Z assembled as a unit. I even tested it with the Gecko. Then I mated the Z to the gantry Y drive.

[LarryE]

Check out JPZ's build at Scratch: [Complete] 2' x 3' Custom CNC Router from 80/20 Aluminum Extrusion - Overclock.net - Overclocking.net

[adt2]

That is an awesome link. Great build log. Thanks for the heads up.