A 24mm engine casing was stood up and centered on the rings included in the kit.
Trace around the base of the engine with a fine point pencil.
Tracing around the smaller diameter engine casing (instead of a slightly larger BT-50 sized tube) gives you a tighter trim-to-fit interior diameter.
Check to make sure the drawn circle is centered on the ring.
Erase and redraw if needed.
It'll take a few passes to cut through the rings. Take your time.
The rings were stacked and sanded with some 100 grit paper around a finger.
Sand for a bit, check the fit and sand more.
As you get closer to the correct diameter, switch over to some finer 220 grit sandpaper.
The BT-50 (24mm) tube is 4" long.
The rings were glued 3/4" from each end.
135 lb. Kevlar was tied on and slipped through a small hole in the front ring.
The engine hook is long enough for a 3 3/4" long E engine. A 1" coupler will be slid in for a "D".
An 1/4" long engine block was cut from a used E engine casing.
No comments:
Post a Comment