Wednesday, October 7, 2009

Altitude bearings mounted

After installing the threaded inserts and giving the altitude bearings two more coats of polyurethane, it was time to mount the altitude bearings on the mirror box. I used four 1/4-inch by 2-inch stainless steel machine screws for each bearing. On each bearing two of the screws thread into the threaded inserts, while the other two pass through a hole in the mirror box. On the other side is a stainless steel flat washer, lock washer then a hex nut. Both bearings are now in place, clearing the way for the next step, painting the interior of the mirror box flat black. I applied one coat of Kilz oil based primer and allowed it to dry. Then it will be covered with two coats of flat black paint, the second of which will be flocked with saw dust. The bolts for the pole blocks clamping knobs will also be installed before painting. After the box's interior is painted and completely dry, I will then bolt the steel tailgate in place inside the box.

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