Slip Gauges

[Michael ToppingParticipant @michaeltopping17870]

The most boring job I had as an apprentice was whilst working in the metrology department, checking slip gauges. It was all done in a temperature controlled room mostly using a comparator. I seem to remember using light waves in some form to check the surface finish, it was back in the 1970's.

I have a set of slips which get a lot of use. They don't all wring together anymore and I have no idea when they were last calibrated. I used them today to set the theoretical position of the piston valves on the valve rods for my current loco build.

Michael

[Martin 100Participant @martin100]

Posted by Michael Topping on 26/02/2016 18:48:59:

The most boring job I had as an apprentice was whilst working in the metrology department, checking slip gauges. It was all done in a temperature controlled room mostly using a comparator. I seem to remember

 

For flatness presumably with the use of these

https://en.wikipedia.org/wiki/Optical_flat

 

I find slip gauges useful but only for checking calibration or as big feeler gauges and never for packing purposes.

Edited By Martin 100 on 27/02/2016 08:19:49

Edited By Martin 100 on 27/02/2016 08:21:36

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