started the last one. I'm thrilled how closely the floor looks like the map! I'd imagined the map was "Plan A Guideline" and the reality would be a bit different, but they look identical. Damn, I'm good! The length is coming out to within ONE FOOT of what's measured on the map. Damn, I'm good! And the length of all five circuits need to be within 10% of each other -- mine are within 2%. Daaaamn, I'm good! What a thrill to be figuring this out as a I go, and getting such polished results. And I'm starting to make really accurate cuts on saws -- this bodes well for cabinetry. :) Feeling blessed, pleased, happy.
Map Measuring Hack
Planning the map, I wanted an accurate measurement of the pex, but didn't want to deal with the math of the curved ends. Use knotted string.
I tied a knot in non-stretchy string, and added five more knots spaced 7½ inches apart. My map scale = 1 foot is three quarters of one inch. So 10 feet is three quarters of 10 inches, or 7.5 inches. Follow whatever scale you're using. Wind the string around the loops on the map to accurately measure the length of a circuit, so you can adjust the plan to make them the same length. Rohan is demonstrating the technique here.



