RE: [CAD_CAM_EDM_DRO] Re: Thinking of retrofitting

Torque is a force (oz, lbs, Newtons, etc.) applied over a distance (in, ft,
meter). To put it another way, suppose you have a motor with a 12 inch arm
attached to the shaft and the arm is currently horizontal. If you hang a 1
oz weight on the end of the stick, the torque produced at the shaft would be
1oz x 12in = 12 oz-in. If you double the length of the stick to 24 inches
and hang the same 1 oz weight on it, you would have 1oz x 24in = 24 oz-in.
Likewise, if you doubled the weight on the 12 inch arm to 2 oz you would get
2oz x 12in = 24 oz-in of torque at the motor's shaft.

So, if you start with 1076 oz-in and divide by 12 (12" per ft) you will get
a measurement in oz-ft (or ft-oz means same thing). 1076 oz-in / 12 = 87.7
ft-oz. If you then divide this by 16 (16 oz per lb) you will get your
ft-lbs measurement. 87.7 ft-oz / 16 = 5.6 ft lbs.

Mike

-----Original Message-----
From: jess@... [mailto:jess@...]
Sent: Wednesday, April 28, 2004 9:03 AM
To: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: Re: [CAD_CAM_EDM_DRO] Re: Thinking of retrofitting


What is 1076 oz-in in ft-lbs or Nm ? What is the conversion?

Regards
Jess

----- Original Message -----
From: <shyningnight@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Wednesday, April 28, 2004 12:26 AM
Subject: [CAD_CAM_EDM_DRO] Re: Thinking of retrofitting


> Hi!
> I'm in about the same place you are...
> I'm getting the impression that the more electronics you know, the cheaper
you can do it.
> If you're an electrical idiot like me, you end up paying more for other
people to assemble
> things for you :-)
> It's looking to me like my Mill/Drill conversion is going to cost me under
$1000. How
> much under? I don't know yet. (depends on how much help I can get from a
friend of mine
> who is an electrical engineer ;-).
> If you want to start out real good with one component that's usually
expensive; go to Dan
> Mauch's site (Camtronics) at http://www.seanet.com/~dmauch/ and buy three
of the
> heavy duty stepper motors he's got!
> They're a fantastic deal!
> AND he carries all the other parts for the conroller end of things too.
> Hope this helps!... one newbie to another.
>
> Paul F.
>
>
> --- In CAD_CAM_EDM_DRO@yahoogroups.com, "skunkphallus" <skunkphallus@y...>
> wrote:
> > Hello,
> >
> > I recently purchase an older mill/drill and am thinking of making a
> > CNC machine out of it. This will be the first time that I tried
> > anything like this, but I am pretty sure I can do it. I am just
> > wondering if anyone can give me a ballpark of what it will cost for
> > all the components? Or if anyone has finished this project, what
> > components did you use and about how much did you spend?
> >
> > Thanks in advance
>
>
>
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