Warco Super – Major Vario inaccuracy

[Michael GilliganParticipant @michaelgilligan61133]

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

… May, July, and August 2001

[John MCParticipant @johnmc39344]

Posted by Neil Wyatt on 22/02/2019 11:4

A quick google will show Tormachs and Bridgeports being shimmed to correct similar errors so neither the issue nor the cure is unique to far-eastern imports.

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

[Neil WyattModerator @neilwyatt]

Tramming-a-non-nodding-BP-round-ram-mill

[Michael GilliganParticipant @michaelgilligan61133]

Posted by Neil Wyatt on 22/02/2019 18:06:03:

 

Tramming-a-non-nodding-BP-round-ram-mill

 

.

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

[Dave HalfordParticipant @davehalford22513]

Is there an update on this issue please?

[John McNamaraParticipant @johnmcnamara74883]

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

[Graham StoppaniParticipant @grahamstoppani46499]

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

[FMESParticipant @fmes]

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

[Ketan SwaliParticipant @ketanswali79440]

Posted by Dave Halford on 27/02/2019 10:04:07:

Is there an update on this issue please?

Yes

[Dave HalfordParticipant @davehalford22513]

Ahh, a secret.

[Author]

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