Caliper pieces for steel rules
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- เผยแพร่เมื่อ 26 มี.ค. 2024
- I recently had to measure across 2 pieces of round tube with a steel rule. With the usual thoughts of there had to be a better way, I set to work. These 'jaws' attach to a steel rule and allow larger items to be positively located so they can be more accurately measured.
I guess if you wanted to, you could even incorporate a vernier scale (if your steel rule was accurate enough)
Great idea, thanks for sharing
Great idea.
This is a genius idea! I may have to do this myself
Pretty cool. 👍
Here in the UK I have always called those files, flat files or engineers files. The warding files had the tapered shape to them, with no safe edges. Different countries nomenclature maybe.
I can't say I'm 100% correct on the naming, just that I've heard them referred to as warded or warding files.
Cheers, they look good.
You could also repurpose an old Stanley swivel square and do angles as well.
👍
Why didn't I think of that? Nicely executed.
As you have the foundry, you can work on the cast version 😁
I think that was a great solution, I will enter my shop tomorrow and get started with this. Thanks for the drawing. Cheers from 🇸🇪
Certainly less expensive than buying a long set of verniers
Between this and the triple cut angle parallels - that's two cracking ideas that are difficult to choose between for the better one - well done!
I've just watched a few videos by Dan Gelbart, he's very fond of waterjet cutting, this would be a good candidate for that.
I think AWJ is a great process too, although not all that practical for a small workshop like mine. It might save a little time with these, but end of the day, they will still need some machining. I would guess that to whip a pair of these up is probably only a few hours work.
@@occasionalmachinist Fortunately I will likely never have space for a water jet cutter - I've never had anything water jet cut either, just keep seeing references to the process of late.
Wow, interesting to know that Australia uses metric!
FWIW, Aussie's went to metric in early 70's.
The UK, home of Imperial measurement, started going metric in the late 60's. Certainly, by 1973, when I started my apprenticeship as a Marine Engineer, everything was worked in metric. But we have stuck to miles for distances and speeds. And there was no way we were going to lose pints for the measurement of beer. So we have an ambidextrous system that works generally.
Only 3 countries DON'T use metric!
@OzGecko Yes, but both Liberia and Burma (Myanmar) are moving to metric, which will leave the US as the last country to be "fully" Imperial. There are some counties, ones that used to be British colonies, that still have some hold over of Imperial such as Malaya, or indeed I suppose the USA!
Thx for the vid.
those would be absolutely amazing with a 0 centre metre rule
What is the advantage to filing the corners square as opposed to adding rads to the male parts?
Quicker to do, although I did not do much with the ends as I was not sure how they eventually be shaped. Still debating that one internally - radii would be fine if they were only ever used for measurements around the outside of stuff; if I wanted to measure bores etc I could add pins or shape the ends to suit.
Very nice workshop addition. Have you considered making an extra head, with an offset, to convert the ruler into a hook ruler. I use calipers to measure roughly across larger round parts and measure the circumference with a tailors tape and divide by pi to get a fairly accurate measurement.
I did think about making one end a hook, but then I realised that the other part of the pair would have to be hooked too so they could meet.
Primarily I made this as a stop, but with a pair so I could measure the occasional large thing.
The principle could be adapted to all sorts of things - hook rule, trammels, inside measurement. The list goes on...
Better known as Trammels great idea
Could be modified to be used as trammels, but my understanding of trammmels was that they had points or something to scribe with.
good idea. may copy if ok?
Go for it - it's what I post for
Yard stick?
Yes. A yardstick to measure all other caliper thingys against. Once side is metric, the other imperial
Another one on my "to do" list ...