Thread: Fourth dimension on a dial caliper

And I thought the 4th dimension was something from science fiction!

Neat - I like it!

That's certainly a trick I was not aware of - thanks for passing the information along.

Wouldn't place too much credence in his ideas, he can't even read the awkward bloody thing.

Last pic/2nd last par he is on about 1 3/8 inch being exactly 30mm which it isn't (34. something), blow up the pic as he suggests to examine how this happens and it is showing 1 3/16 approx and 30mm approx. Attempted to leave a comment to point this out to him, needs a Captcha response but won't show the Captcha image. All sorts of wizzbang ways on his blog to share it, but nothing to make basic email contact with him.

As I wanted to point out to him if the thing had vernier scales instead of a stupid fractional dial, he could decent high accuracy measurements in both systems.

Thanks malb! Not only did I not catch that...you're the first one to mention it! Good eyes!

Not sure about the comments on the blog. I don't have anything locked down. I'll have to check it out...still a pretty basic blogger.

Ill stick with my digital calipers. Does all that a dial calipers will do and easier to read for us slightly older woodworkers.
Regards
John

Woodworkers dont work in the same tolerance zone as metalworkers. I looked at the link and thought "so what" thats how you use vernier calipers.
A few weeks ago there was a Guy Williams UK series on restoring old technologies and they showed the rebuilding of an old fishing trawler
As he was cutting a trench to fit a new deck beam of 6 inch oak the voiceover said that the tolerance was a few thousandths of an inch or the structure would be weakened.
As an engineer and a woodworker I was amused, considering I could see daylight through the gap and the work was being carried out in an English winter undre cover from the heavy rain
BTW They didnt explain why a trench was required as there wasnt one there before and they were apparently "rebuilding"