Warco Super - Major Vario inaccuracy

How on earth do you find this stuff? Even with the link it took me a while to suss out the Russian website and find the pdf.

If anyone else is interested in auto-collimators, this is a sample:

This is the sort of instrument I dream of finding at a boot sale for a few quid.

Ta

Dave

Variations of these are used to check camera lens element alignments with similar accuracy.

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I have been interested for decades, and I have a couple of Taylor Hobson's equivalent model; hoping to build one decent one from the pair [sometime]. ... So I have some motivation.

MichaelG.

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P.S. Recommended Reading:

Engineering Optics : K.J. Habell & Arthur Cox

Edited By Michael Gilligan on 22/02/2019 16:41:29

Note ... a DIY Autocollimator was featured in issues 73, 75, and 76 of MEW

... May, July, and August 2001

Really? Not familiar with Tormach machine tools but Bridgeports I am, I'm assuming the turret type, M and J type heads. These will not be shimmed to correct errors that have been described in this thread and the other now closed thread. The heads tilt and nod so the errors can be eliminated.

I wonder if, in this case, that shimming the gib strips has caused confusion. A well known trick to extend the life of a Bridgeport before commiting to the expense of re-chromed and ground slide ways.

John

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Skip lightly to post #20 and bear in mind that this is a machine from 1950

Shock Horror ...

MichaelG.

Edited By JasonB on 22/02/2019 19:33:04

Is there an update on this issue please?

Hi Neil

Check the the shimming and leveling a Tormach video at about 12 minutes, with one end of the bubble out of sight there is no way of knowing if the bubble is touching the end of the glass vial, if it does the movement will be greatly reduced. any indicated error or lack of error may be way off. You must be able to see both ends of the bubble.

Regards
John

Talking of shimming, I came across this video on Youtube where an epoxy product supplied by a German company is used as an alternative. This is new to me (not that that means much!) has anyone else used this technique?

Mill Tramming with Epoxy

regards

Graham S

Also talking about shimming - does anyone know where I can get some of those u shaped shims that are used to pack DRO scales?

Regards

Yes

Ahh, a secret.