Build 2 of these assemblies.
Install two Y mount chassis onto Extrusion with no taps using M5 x 10 SHCS, M5 Washers and M5 T-nuts.
Take note of the direction of the Y mounts, the tall flat sides must face each other.
The location is not important at this point. Snug them down just enough to not slide around during the rest of the assembly.
Assemble the front frame square as shown.
There is a tapped extension at the top of both the right and left extrusions.
Install 2 M5 t-nuts into the top of the name plate extrusion.
Use Fixture TL-FX0009 in the upper left corner.
Assemble using M5 x 10 SHCS, M5 Washers and M5 T-nuts.
Set the frame up on a flat surface.
Close any gaps there may be at the ends of the extrusions.
Make sure all parts are straight on the assemble with edges flush with the extrusion.
Using fixtures, set the location of the Name plate, Z motor mounts and Feed tube holder.
Tighten all the bolts at this point.