Caliper and Micrometer Videos from the 3D Lab
Short films recorded in the KELIBRON 3D lab. Each one walks through a measurement step by step, with captions, and you can repeat the same steps in the lab afterwards.
Course lessons
0:35Units and where the millimetre comes from
0:46Measurement terms you can see
0:46Direct, indirect and comparative measurement
0:48Sizes and tolerances on a drawing
0:46Measuring conditions
0:44Recording a reading
0:43Length measurement in a physics practical
0:42Caliper basics: three things before any reading
1:08Reading a vernier caliper
0:46Reading a dial caliper
0:42Measuring an outside diameter with a digital caliper
1:23One caliper, three kinds of size
0:58Two common mistakes and how to fix them
0:43Judging a part against the tolerance
1:20Plan the measurement before touching the part
0:28Outside micrometer: outside diameter of ground pin Ø12
0:50The shim: measuring a thin part right
0:51Measuring bores: two anvils or three
1:03One pin, four readings, one you can trust
0:52Reading a dial indicator
0:56Comparative measurement: zero first, then read the deviation
0:28Digital caliper: outside diameter of turned shaft Ø25
0:28Digital caliper: depth of blind bore Ø30
0:28Vernier caliper: outside diameter of Aluminium disc Ø60
0:28Digital caliper: outside diameter of keyway shaft Ø35
0:28Digital caliper: length of step block 120 × 80, width 79.85
0:28Digital caliper: outside diameter of Shaft Ø20 — inspect
0:28Digital caliper: outside diameter of Ground pin Ø12
0:38Wrong use: Too much force (aluminium disc Ø60)
0:28Digital caliper: outside diameter of Stepped shaft Ø20/Ø32
Lab exercises
0:28Vernier caliper: outside diameter of turned shaft Ø25
0:28Dial caliper: outside diameter of Brass bushing Ø40
0:28Digital caliper: outside diameter of stepped shaft Ø20 / Ø32
0:38Wrong use: Debris (turned shaft Ø25)
0:28Digital caliper: bore of brass bushing Ø40
0:28Inch vernier caliper: outside diameter of turned shaft Ø1 in
0:22Dial indicator: outside diameter of blind bore Ø30