RE: [CAD_CAM_EDM_DRO] nema 34 motors on BP series 1 conversion

Ron:

But it's NOT "per". "Per" IS division.

Sorry to keep harping on this, but it IS multiplication that is happening
here.

Andy Wander
Verrex Corporation


-----Original Message-----
From: R Rogers [mailto:rogersmach@...]
Sent: Friday, September 24, 2004 4:28 PM
To: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: RE: [CAD_CAM_EDM_DRO] nema 34 motors on BP series 1
conversion

Oh I see what you are saying. I'm looking at the slash as per and you are
looking at it as a division symbol. I understand what you are saying. Okay
then why do they use a dash thats a subtraction symbol? No, don't answer I'm
kidding.

Ron

Andy Wander <awander@...> wrote:

Sorry, I read your word "moment" as "movement, so the last sentence of what
I wrote is not applicable.

But torque IS measured in in*lb, meaning inches times pounds.

Andy Wander
Verrex Corporation


-----Original Message-----
From: Andy Wander [mailto:awander@...]
Sent: Friday, September 24, 2004 3:54 PM
To: 'CAD_CAM_EDM_DRO@yahoogroups.com'
Subject: RE: [CAD_CAM_EDM_DRO] nema 34 motors on BP series 1
conversion

Well, actually, no.

It is lb*in or oz*in.

That's a multiplication, not a division.

Think of it this way-a shaft needs a certain amount of torque to turn it. I
can apply 1lb at a 2 inch radius, or 2lb at a 1 inch radius. I get 2 lb-in
either way.

The "distance" is not the amount of movement, but the distance from the
center of rotation.

Hope this helps,

Andy Wander
Verrex Corporation


-----Original Message-----
From: R Rogers [mailto:rogersmach@...]
Sent: Friday, September 24, 2004 3:42 PM
To: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: RE: [CAD_CAM_EDM_DRO] nema 34 motors on BP series 1
conversion

Well if you want to get technical it really is lb/in and oz/in. Rotational
torque is rated in this manner. A 2" disc mounted upon a horizontal shaft
and a 1 ounce weight suspend ed from its outer diameter at a horizontal
plane from the axis would constitute 1 ounce of force PER 1" of moment, 1"
moment being the radius. Or 1 oz/in.

Ron


Andy Wander wrote:
Thank you......

I wouldn't care so much if it were not for the possibility that people will
try to use the units quoted in an equation, with the result that they will
be more convinced than ever that this is all black magic.

Andy Wander


-----Original Message-----
From: R Rogers [mailto:rogersmach@...]
Sent: Friday, September 24, 2004 2:52 PM
To: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: RE: [CAD_CAM_EDM_DRO] nema 34 motors on BP series 1
conversion

lb-in...is that better? lol

Andy Wander wrote:It's lb-in or in-lb or lb*in or
in*lb(pronounced "inch pounds" or "pound
inches"), NOT lb/in(pounds per inch) or in/lb(inches per pound).

Whew! I feel better now.....

Andy Wander
Verrex Corporation




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