Anyone know where I can get hold of ‘Gauge Rods’

[JasonBModerator @jasonb]

Yes as I said earlier and just showed the shank of a drill is going to work and if you need something in between then just make a rod as and when required, no harm in grinding the end off square if you want. A set of 1.0mm – 5.9mm drills will be towards the top of a must have list anyway so better to spend on them than a set of gauges most of which won't be used or as Michael says just use one part to gauge another..

[Anonymous]

Posted by Chris TickTock on 06/09/2019 22:10:14:

I could easily reveal my advisor who has been US craftsman of the year and is respected as top guy on the best known horological forum

No need – Jerry Kieffer on NAWCC

The first photo in this thread is from one of his posts.

Andrew

[JasonBModerator @jasonb]

And interesting that he says he just used the rods to measure with and then uses the handwheels to make the cut to the measurerment.

He also calls them PINS not rods which could have saved everyone a lot of time.

Never think of him with regards to clocks and watches, does make a good engine though

 

 

Edited By JasonB on 07/09/2019 15:34:16

[JasonBModerator @jasonb]

Just to further confirm that gauge (US gage) pins are being referred to have a read of this where Jerry is mentioned several times and his sketches used.

As we now know he is comparing parts to the pins of known diameter to get an actual size to then turn his handwheels to you are really going to need a set of pins like the one shown. Making your own will just introduce an element of error between what you are able to actually turn and how you use a micrometer to measure the pins.

[speelwerkParticipant @speelwerk]

Posted by JasonB on 07/09/2019 17:04:23:

Just to further confirm that gauge (US gage) pins are being referred to have a read of this where Jerry is mentioned several times and his sketches used.

It is certainly nice work Mr. Kieffer does but If I work according to his method I would not be making money at all. Niko.

[Frances IoMParticipant @francesiom58905]

He doesn’t have to earn that much making the thing – more money from the video, placement fees + tutoring aspects

[Ian PParticipant @ianp]

To measure/assess/gauge/judge the distance between shoulders on a part being turned, the use of circular rods or pins looks to be an less than ideal method.

Surely it would only take a few minutes work with a bit of scrap sheet metal to make the end of a flat strip the exact width of the required distance. One would need the ability to file the end of the strip with nice clean and square edges (finish with an oilstone) to the exact width which could be measured with micrometer. One corner could have a small chamfer so it sits against the reference shoulder, the flat face on the edge of the strip would give a much better visual indication of the shoulder width than any cylindrical gauge ever could.

No need to buy an expensive set of gauges either.

Ian P

[MeunierParticipant @meunier]

Posted by JasonB on 07/09/2019 17:04:23:

Just to further confirm that gauge (US gage) pins are being referred to have a read of this where Jerry is mentioned several times and his sketches used.

Thanks, I think, Jason – another interesting 'rabbit hole' to explore when have a few minutes.
I was surprised in your previous link to see the flank of the graver being used when I had the idea that the diamond point would be used as in the Eccentric Eng lathe tool.
DaveD

on further consideration, a smooth surface would be required, using the point might result in something more akin to making a thread………..

Edited By Meunier on 07/09/2019 21:38:09

[Neil WyattModerator @neilwyatt]

I think it's being used as a tangential tool.

[Michael GilliganParticipant @michaelgilligan61133]

Posted by Neil Wyatt on 07/09/2019 22:29:14:

I think it's being used as a tangential tool.

.

Indeed it is [the action is very much like that of a wood-turner's skew chisel]

On another of Chris's threads **LINK**

https://www.model-engineer.co.uk/forums/postings.asp?th=144147&p=3

After repeating my recommendation that he read Saunier … I commented:

"I will, genuinely, be very interested to know how you get-on; turning a staff with any tool that is not making a shearing cut."

MichaelG.

[JasonBModerator @jasonb]

A graver is really a tool with variable geometry as you control the angle of attack simply be the angle you present it to the work, for brass you raise the handle to get little or no top rake, for steel you lower it to get more rake. Pivoting it horizontally will give different front and side angles.

[Michael GilliganParticipant @michaelgilligan61133]

These videos, by Dean DK are helpful: **LINK**

MichaelG.

.

P.S. … I forgot to mention: Although he is very good, there are quite a few ''typos' in the subtitles.

Edited By Michael Gilligan on 08/09/2019 08:44:03

[Nick HulmeParticipant @nickhulme30114]

I'd just make a mount for a digital gauge on the top slide, measure from a shoulder to a face or face a known length from the shoulder

[Michael GilliganParticipant @michaelgilligan61133]

Posted by Nick Hulme on 09/09/2019 21:47:55:

I'd just make a mount for a digital gauge on the top slide, measure from a shoulder to a face or face a known length from the shoulder

.

That's fine, Nick … but it's quite common not to know [quantitatively] what dimension you are trying to achieve.

MichaelG.

[Bernard GreatrixParticipant @bernardgreatrix61453]

Hi,

A supplier of gage pins is :-

**LINK**

see page 8

As they are in the US they might/might not have a postal offering

2nd thought – as you're after 0.1 inch and there abouts , how about using sewing needles.darning needles. My wife has numerous thicknesses up to about 0.15" and I often'pinch' the odd one for hole measurement

regards

Bernard

[HopperParticipant @hopper]

If you have a lathe you should be able to turn up a set of gauge pins in .001" increments.

[Author]

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