Re: Mach3 CV Problem

Hello,

MAch has implemented a NEW method for backlash compensation which in
some cases will result in slowing of the motors that will seem
unnatural. There is a setting that needs to be reset to mimic the
old backlash method. Best place to get info is the Mach1mach2cnc
yahoo group. Lot of discussion on it in the recent weeks...

Hope this helps,

Ballendo

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "shadi_salhab_78"
<salhab@...> wrote:

>
> Hi all,
> Last week I updated from Mach2 to Mach3 the install was on a clean
> windows , I placed the same machine parameters, I started a big G-

code

> file made by MasterCam to make a finish pase of a blow mold . Feed

is

> 1000 milli-meter, the problem is that the machine movement is not
> smooth at all , The 3 axis are hesitating (as if the CV option is

off

> and exact stop is on ),
> the feed given by mach3 rapidly changing but not more than 450 !!
> I have chaneged the look ahead parameter, CV feed and angle, little
> diffrence but not good at all.
> I went back to mach2 with the same G-code file , the movement is
> perfectly smooth and feed is 1000 all long !
>
> Where is the problem? Any Hints?
>
> Thanks,
> Shadi Salhab
>