Quote:
Originally Posted by SIGP2101
Or you can use known dimensions...
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That sounds the simplest way. Could you please post the dimensions of the Luger artillery barrel, especially the rear sight base dovetail?
Quote:
Originally Posted by SIGP2101
Once I measure dimensions I use mm paper to make large drawing and then just measure angle.
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That's pretty much how I do it. I don't use paper, I use plastic sheet. I label the triangles so I can hold them against an unknown angle and see how close they are, then lay out what I think the angle is and cut it out and compare it. These are some I use to set my compound rest and/or set my fixture to mill a feed ramp [first pic]. It works good enough for my work. I don't demand perfection.
I use the plastic template to get my angle, then use the machinist's level to transfer that angle to my fixture [second pic]. This is a Luger feed ramp being cut.
The dovetail dimensions are less than a tenth of an inch in any direction; hard for me to see light under the template. 60º seems to be the closest I can come, so 60º it is.
