(57/114) 2021-02-21_17-05-26.jpg

Developed using darktable 4.2.1

56: Lining up LASER dots - one from the water - the other from the optical flat.
55: 2021-02-18_14-33-20.jpg
54: 2021-02-18_14-33-06.jpg
53: 2021-02-15_17-41-24.jpg
52: 2021-02-14_19-44-42.jpg
51: 2021-02-14_14-16-29.jpg
50: 2021-02-14_13-47-52.jpg
49: Old late 1960's electronics died..
48: Martest indicator
47: 2021-02-08_18-43-31.png

58: Using gravity feild to test optical flat
59: 2021-02-22_11-51-14.jpg
60: Meter bezzel - from mill
61: platinum wire thermistor
62: platinum wire thermistor
63: Fans in enviornemntal chamber.
64: Air powered vacuum
65: 2021-02-24_23-55-12_1.jpg
66: Cast iron surface plate - needs grinding
67: Cast iron surface plate - needs grinding