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Unfamiliar Drawing Callout

Unfamiliar Drawing Callout

Unfamiliar Drawing Callout

(OP)
I just received a 1982 print of a pump inducer.  The part has 4 blades that are angled to the rotational centerline and are tapered from the hub to the tip (3°).

The Notes read:

1. Use .012/2° cam set

2. Generate the outer side with .012/2° curved cam

3. Generate the inner side with .012/2° flat cam

Is anyone familiar with these callouts (methods)?  Searches haven't turned up anything.

RE: Unfamiliar Drawing Callout

might try practicalmachinist.com

Thomas J. Walz
Carbide Processors, Inc.
www.carbideprocessors.com

Good engineering starts with a Grainger Catalog.    

RE: Unfamiliar Drawing Callout

Sounds like a set of instructions for a cam operated mill  or lathe  i.e. Hardinge.
B.E.

The good engineer does not need to memorize every formula; he just needs to know where he can find them when he needs them.  Old professor

RE: Unfamiliar Drawing Callout

Yep that drawing/part was probably run in-house at one time and those are specific instructions for the machine operators they had.
 

RE: Unfamiliar Drawing Callout

Sounds like Acme or Brown and Sharpe set-up notes.

It is better to have enough ideas for some of them to be wrong, than to be always right by having no ideas at all.

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