Schematics for the AT-ST was from the site The-Bluprints.com. It hosts some of the largest collection of free schematics and this project was definitely not possible without them....(thanks guys!!)... ...
For the final assembly, I fabricated a temporary jig using colored 'tongue depressor-sized' popsicle sticks and oddly shaped 'scraps' to prop up the engine sub assembly with the same level as the walker's mechanical legs. The legs should line up with the engine drive shaft from the previous step.
While waiting for the engine and leg sub assemblies to dry, the blaster cannon assembly was glued to the blaster cannon 'slot' in the main turret. You have the option to mount the cannon pointing upwards (to blast Ewoks in gliders!) or downwards.
Finally, the completed main turret assembly was glued to the desired position on the engine/gyro system sub assembly.
Fabricate a squad of walkers and go after those pesky Ewoks!!!