Caliper repair

[Allan WebsterParticipant @allanwebster78962]

Attached is a photo of a Dial Caliper that was given to me some time ago minus the lens and with a very dirty face as a result of having been used without a lens. Careful cleaning made it usable (further cleaning threatened to remove surface) before a search for a lens started. Availability, cost the have it fitted etc prompted me to make one. A piece of material clamped between two spoons and immersed in hot water and allowed to cool gave me the right curvature the difficult part was chamfering the edge.

[Allan WebsterParticipant @allanwebster78962]

Dial caliper repair

[old martParticipant @oldmart]

Assuming that the jaws are closed, the zero can be reset without removing the glass pointer. The pointer spindle is spring loaded against the rack and with a suitable fine probe, you can get it to jump some teeth much closer to vertical. They used to include the little tool with new calipers.

[BazParticipant @baz89810]

Get a paper clip, straighten one leg of it and hammer it flat and you have a zero resetting tool. Open calliper to about 1” position and slide tool along top of rack until it engages with dial pinion and re set to zero. A bit of practice is required, you will make it worse before you get it where you want it, I certainly did!

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