Re: [CAD_CAM_EDM_DRO] Re: motor sizing vertical slide EDM

Hi Jon:
Wouldn't you be worried about having the weight oscillate at certain ram
cycle frequencies.
I can picture a 500 pound weight hammering up and down at an ever increasing
amplitude and eventually wrecking everything in its path.
Makes me nervous!!
Cheers

Marcus

----- Original Message -----
From: "Jon Elson" <elson@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Saturday, May 13, 2006 9:38 AM
Subject: Re: [CAD_CAM_EDM_DRO] Re: motor sizing vertical slide EDM


> One simple fix is to find a spring that allows the weight to hang with
> the spring partly extended.
> This will put a nearly constant pull on the cable without much inertia
> effect. The cable runs
> over the pulleys, then the weight hangs from the spring.
>
> Jon
>