Good evening everyone
Like yesterday, the weather remained fine, in fact I didn’t need to wear a jacket today, although Sheila still wore her coat! Anyway, the items we went to collect were picked up, so that’s Ava’s and Evie’s birthday and Christmas presents sorted! This afternoon I sat at the table and with the aid of a pencil, some paper and an eraser, I pondered the switching and wiring arrangements for the 3 way point. My final design uses, apart from some cable, just 3 items, 2 micro switches for changing the crossing vee polarity and a Double Pole, ON/OFF/ON switch for operation. The point will be operated using 2 mini servo’s mounted below the baseboard, the 2 micro switches will be mounted on the servo brackets, 1 on each servo and will be operated by the servo arms. Hopefully, the drawings below will make it all clearer.
First the point and crossing vees
The the operating switch