(37/364) 2023-01-23_18-27-16.jpg
lapped down to 2.5um
36: Only 23um [.0009"\
35: Trying aluminum foil on groved plate. Does not wear long - too thin.
34: A good ground clamp
33: Had to weld this Stainless back together..
32: Lapping block to brighten it up. Groved iron plate with polycarbonate sheet - 20um diamond paste.
31: 2023-01-18_00-52-40.jpeg
30: Before restoration - A Herman Schmidt/Murkens style Suface-plate-indicator-stand.
29: They don't use sink hangers anymore. They apply silicone caulk/glue and then twist the wires to clamp it into place.
28: Fixing my micrometer that I dropped . Reminder - never drop instruments!
27: Truing up a grinding cup using the tapered arbor I made.
38: Finished printing the ER40 collet holders.
39: Added RF connector to FM transmitter
40: Connected to RF power amp
41: Tool path.
42: 2023-01-25_20-50-01.jpg
43: Screwed up - cut a bit deep into the aluminum, probably just as well - don't want to cut the 1095 spring-steel with the corner.
44: 2023-01-25_20-55-59.jpg
45: got close enough to the screw head to make me nervous.
46: Clearance is clearance..
47: Much better
