Thanks for sharing. Like the set up. What is the reason the inspection window needs to be accurately located? Is there a next step for the part after this machining?
Benno - We needed to view the Sealing Surfaces for the Rubber Seal. We didn't want to cut out the area where the Poll Pins were located . 45° was the Ideal Angle . Rather than mill it using layout hand tools - I went the DRO Route . -- Jim