A better modeler than I would have used something like a bandsaw or possibly a bladerunner to ensure straight cuts of the centipede shell. Not having access to a bandsaw, and Amazon jacking up the price of a bladerunner $30 made me decide to try and do the cuts with a Dremel using a right angle attachment. Using a square, I applied masking tape in hopefully straight, perpendicular lines to use as a guide for the Dremel cuts.
Went through 3 standard cut off wheels on the 1st cut. Switched to one of the larger, reinforced wheels after that, and it did the job on the remaining 2 cuts (there'll be another cut, but I need to figure out how long the center section needs to be before I make that one). Next up, some filing and/or grinding to ensure the cuts are straight and smooth, then they'll be joined together.
