by raimundo » 4 Dec 2010 10:09
Notice that the peaks are thick metal and between them is a very narrow thin part. the peaks will not bend while this weak area is there to take all the pressure, any bending will concentrate on the first of these narrow thin areas to be overforced, and once its metal crystalization has been stretched in this way, its only a matter of time til it breaks,
That pick is the opposite of a bogota, it has a lot of peaks filling the keyspace and only narrow valleys for the pins to drop into. On the bogota, the the secret is the wide open valleys, and keeping as much as possible of the peaks from overfilling the higher areas of they keyspace while still reaching in with very narrow peaks to lift the pins as the peak passes under.
A bogota has approximatly one pin on a peak, and the next in a wide valley,then then third on a peak and forth in a valley.
Its this negative space of the valleys that allow the pins freedom to find their shearline step.
If I owned this southord rake, I would grind out every other peak then sand it smooth to make it work.
Wake up and smell the Kafka!!!