Assembly.
Most of the "kinetic art" that I create is "Modular, Demountable, & Portable." No exception here.
I engineered this design so that the "Lincoln Logs" will be held together at their corners, employing All-Thread. Easy to do, works great with the modular components, and can be easily assembled/disassembled.
Here we are starting out the assembly. The 28" square deck is in place, as are the two half-logs. The all-thread is 1/4-20 x 36" long. Spring clamps were used to hold the threaded rods from slipping in the beginning, but were not needed after a few courses of logs were in place.
For the holes at each cope, I created a little jig tool from a 2" x 3" piece of scrap steel. I bent the metal into a U, 2" x 2" with 1/2" wings, with a 5/16" diameter hole at its center. Then I used that jig to automatically center and guide the 5/16" twist drill bit as I used a cordless drill to bore the holes, one after another. This helped keep the alignment. 5/16" diameter provided sufficient tolerance to keep the 1/4" rod from binding too much during assembly; any tighter would have been more demanding, and not any more useful.
Assembly.
Most of the "kinetic art" that I create is "Modular, Demountable, & Portable." No exception here.
I engineered this design so that the "Lincoln Logs" will be held together at their corners, employing All-Thread. Easy to do, works great with the modular components, and can be easily assembled/disassembled.
Here we are starting out the assembly. The 28" square deck is in place, as are the two half-logs. The all-thread is 1/4-20 x 36" long. Spring clamps were used to hold the threaded rods from slipping in the beginning, but were not needed after a few courses of logs were in place.
For the holes at each cope, I created a little jig tool from a 2" x 3" piece of scrap steel. I bent the metal into a U, 2" x 2" with 1/2" wings, with a 5/16" diameter hole at its center. Then I used that jig to automatically center and guide the 5/16" twist drill bit as I used a cordless drill to bore the holes, one after another. This helped keep the alignment. 5/16" diameter provided sufficient tolerance to keep the 1/4" rod from binding too much during assembly; any tighter would have been more demanding, and not any more useful.