A Quick Job, Daisy 777 Elevation Nut

Rick on the Vintage Airgun forum picked up a Daisy 777 the other day, but it was missing the (unavailable) elevation nut. So Grant in New Zealand measured his and made a sketch of the dimensions, then I made one in about 25 minutes. Sorry about the picture quality, but I was rushing...but it was nice to help out those who have been so helpful in the past. Read the whole post, it's interesting.

Turning the shoulder.

I used the parting tool to create some clearance so I could get the caliper in to measure the other shoulder diameter. Then I drilled for a #6-40 thread.

Tapping the #6-40 thread.

Ready to knurl.

I broke the edges after knurling.

Using a pointed centerfinder to determine center. I just used my fingernail to make sure it was lined up, not a high tolerance setup...

Cutting the elevation detents with a 1/32" ball end mill.

Done...

The grooves ended up being off a bit as once again I forgot how to read the stupid Sherline rotary table dial. But hey, he's happy with the part and the gun is now complete.

"30" actually means 30 tenths of a degree, or 3 degrees. Why not just make the handwheel say "3"? I have now written the proper markings with a sharpie on the dial. Of course it's really my fault for not remembering since the last time I made this mistake...