Fellow Addicts:
I had such unexpected positive feedback about the Frame Assembly Jig I used to start building my Italeri 1/24 Peterbilt 378-to-379 Conversion I decided to post the topic by itself just in case others might find it useful.
Here are several pics of the Frame Assembly Jig I built to make sure the frame is straight and flat. I glued (with thin C/A) 1/8" X 3/8", 1/4" X 1/4", and 1/8" X 1/4" spruce strips to the back of a flat, 1" X 3" poplar sanding block. It works great for Italeri 1/24 Peterbilt 377 and 378 frames; just slip the parts in place (interference fit), apply Tamiya cement, and weigh-down with weights.
I don't know, yet, if it will work for the Freightliner-based frames in other Italeri US truck kits. No worries, however. This jig is easy to make!
Scott