Dcal
Member
- Messages
- 3,850
- Location
- Antrim Northern Ireland
I have acquired a 0 to 25mm micrometer.
It's in excellent condition but the zero mark does not line up with the scale on the micrometer.
I can rotate and lock the scale so that the scale lines up with the datum line, but then it undershoots the zero mark by 0.2mm.
If I measure a 0.2 feeler gauge, it all lines up perfectly and I can see the zero mark.
If it overshot by the same amount it might be easier to live with but I struggle to remember if it 0.2 over or under.
Is this normal?
Should I just learn to live with it?
Can the anvil be adjusted to sort it (I can't see any way to adjust the anvil)
Or can I adjust the position of the screw thread to adjust it?
Or should I take 0.2mm from the barrel where the scale seats in the C frame.
Or is there another fix?
Thanks
It's in excellent condition but the zero mark does not line up with the scale on the micrometer.
I can rotate and lock the scale so that the scale lines up with the datum line, but then it undershoots the zero mark by 0.2mm.
If I measure a 0.2 feeler gauge, it all lines up perfectly and I can see the zero mark.
If it overshot by the same amount it might be easier to live with but I struggle to remember if it 0.2 over or under.
Is this normal?
Should I just learn to live with it?
Can the anvil be adjusted to sort it (I can't see any way to adjust the anvil)
Or can I adjust the position of the screw thread to adjust it?
Or should I take 0.2mm from the barrel where the scale seats in the C frame.
Or is there another fix?
Thanks