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Type: Posts; User: ballen

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    Hi Matt, My eyes are not very good, but my...

    Hi Matt,

    My eyes are not very good, but my right eye is nearsighted. So if I take off my glasses and adjust the focus correctly, I can easily resolve if the indicator line is aligned with one of...
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    On a half-inch part I agree. But if you are...

    On a half-inch part I agree. But if you are using the 200mm (8") blade against a ground or machined surface, then 1 arcminute corresponds to about 0.06mm (0.002") at the end of the blade. That is...
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    Actually it says that parallax errors are below 1...

    Actually it says that parallax errors are below 1 arcminute. Here is a translation:

    Sealed against dust and humidity. The ocular has a protective cap and has a field of view which is so small...
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    Just realised that my photo has the protractor...

    Just realised that my photo has the protractor upside-down in the case. For the record here is how it should look.
    ...
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    Since I mostly lurk in this forum, I thought that...

    Since I mostly lurk in this forum, I thought that I would try to contribute a bit. So here is a picture of my tool in the box. This one carries the "Helios" brand but was made by Schneider & Kern in...
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    I've got one of these made by Helios. Nice tool....

    I've got one of these made by Helios. Nice tool. It still has the original inspection sheet showing that the errors in the dividing circle are 10 seconds of arc. The instruction sheet claims that...
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