Re: Timing Belt Sizing

What motors are you running that give you 1200 oz-in, steppers or
servos.


Wally K.


--- In CAD_CAM_EDM_DRO@egroups.com, "Carey L. Culpepper" <mr.c@b...>
wrote:

> Hugh: I am currently running 3/4" "L" series belts with 12 tooth

and 24 tooth pulleys. Even the knee feed(z axis) has a 3/4" belt.

> This one really should be a 1" belt but I was having trouble

finding a 12 tooth in 1" . So I will use a 1" 14 and 28 tooth pulley
on

> the knee. My motors are about 1200 oz. in.. I was drilling some

very big holes with the x axis(angle head) and had no problems. One

> drill pass was from 1" to 1 3/4" . The program went haywire and

went rapid feed into the piece. It just pushed it down the table. It

> was a piece of cold rolled clamped very tightly to the table.
> Those big pulleys would be overkill. Particularly with only 785 oz.

in. I will try to find a 1" kevlar belt for the knee at some

> point since it is pushing a good bit of iron up and the kevlar

won't stretch as much. I hope that this helps, Carey.

>