Carriage Stop for a Colchester Student Lathe - part 2

In Part 1 the body of the carriage stop was bored to receive the cotter, the cotter was turned and threaded, and the bolt was machined.
In this video (Part 2) I mill the slightly complicated slot to match the profile of the lathe bed, make the DTI holder and contact pins. This involves turning, milling, the shaper, chemical blackening and heat treatment. Finally, the body is given some electrolytic coating to minimise rust.

Part 1 seemed to be well received so I hope that part 2 lives up the what has preceded!

00:00 Recap on part 1 and introduction to part 2
00:32 Checking the centre line of the cotter bore
01:45 Preparations for machining features at 45 deg & making angle gauge
04:58 Turning radiused corners on body
05:22 Marking out slot
05:56 Milling vertical surfaces
07:27 Bringing horizontal surfaces to final dimensions
08:56 Milling surfaces at 45 degrees
12:09 Adapting cotter
12:48 Trial fitting of body to lathe bed
13:49 Marking out and drilling/reaming/tapping holes
14:47 Turning contact pins
15:58 Turning & milling DTI holder
18:45 Chemical blackening of cotter & DTI holder
19:41 Heat treating of bolt and contact pins
21:33 Electroplating of body
22:21 Fitting of contact pins & assembly
22:51 Demonstration of saddle stop with DTI

Music from You Tube audio library Last Cappuccino in Rio by Chris Haugen