Checking a 45 degree square?

Gallery, Projects and General > How do I??

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philf:

--- Quote from: Arbalist on May 26, 2015, 03:04:44 PM ---Who's Philf? :scratch:

--- End quote ---

I'm philf but I don't remember anything about 45 degree squares!

Phil.

Fergus OMore:
Correct me if I'm wrong but you listed the various books on machine tool restoration and measurement- one of which was Edward Connelly's treatise.
In Connelly, the details of the creation of 30, 45, 60 degree references were included using the 3 plate system which refers to both flat and angled work.

I recall fairly clearly what advice was there and used it many years ago.

I hope that this throws light on the matter

Regards

Norman

philf:

--- Quote from: Fergus OMore on May 26, 2015, 05:06:28 PM ---Correct me if I'm wrong but you listed the various books on machine tool restoration and measurement- one of which was Edward Connelly's treatise.
In Connelly, the details of the creation of 30, 45, 60 degree references were included using the 3 plate system which refers to both flat and angled work.

I recall fairly clearly what advice was there and used it many years ago.

I hope that this throws light on the matter

Regards

Norman

--- End quote ---

Hi Norman,

Ah - now I understand - sorry.

Phil.

Fergus OMore:
Phil,
Amongst other things, I had to train my memory. Used something called Pelmanism and for my maths, I used Trachtenberg which was developed in a concentration camp- to keep the poor bloke sane.

As the years go galloping past, I'm glad- I think?

My regards- thank you for your most valuable contributions here.

Norman

vtsteam:
Rich, your question is perfectly reasonable. It produced several interesting results. Glad you asked it. :beer:

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