Re: Bike Bobber
With the brackets squared up and laid out it is time to drill and tap some holes. The holes must be precisely located so I secured one bracket in a power lock vise on the mill and set up a "table stop". This will precisely located each bracket in the vise every time. Then I picked up 2 sides of the bracket (locate the edge of the work piece and set the machine dial at "0". These 2 locations are called "datum's". All measurements are taken from the datum's. I'm using an edge finder commonly known as a "wiggler" to pick up the edge's. This is not as precise as other methods but is faster and close enough for this application. After moving the x and y axis (the machine table) to the desired location of the hole. Always move to locations in a clockwise direction. Lock the table in place. Don't reef on the locks, just enough pressure to secured them in place.