I have spent this evening making some three legged stools for a school production. I marked out the seats to drill holes and thought the angles looked a bit off. I dug out a protractor and it turns out that my 60/30 degree set square is actually 55/35 degree.
I inherited the tool from my granddad. I believe he made it and a 45/45 whilst he was at BAE making Hawk cockpit canopies. They are clear plastic, possibly polycarbonate. He apprenticed as a shipwright with a Yacht manufacturer in Portsmouth and went into the Navy from there. BAE was his last job before retiring.
I don't believe that the 55/35 is a mistake. Does anyone know of a task that would require those angles?
I inherited the tool from my granddad. I believe he made it and a 45/45 whilst he was at BAE making Hawk cockpit canopies. They are clear plastic, possibly polycarbonate. He apprenticed as a shipwright with a Yacht manufacturer in Portsmouth and went into the Navy from there. BAE was his last job before retiring.
I don't believe that the 55/35 is a mistake. Does anyone know of a task that would require those angles?