Re: [CAD_CAM_EDM_DRO] Why does my X axis go faster than my Y axis????

Dave M.

When you say are these "indicated feed rates" or "actual measured feed
rates", what do you mean?

Basically if I process the g-code in SheetCam then open the .tap file in
Mach3 and run it. The x axis will show that it is moving faster than what I
have set it for in SheetCam. The DRO readout in Mach3 will show the "set
feed" to be at say 1500mm/min but the "actual feed" DRO will show
1800mm/min.


"-------indicating a disparity between the total drive ratio of the two axis
which would give us a starting point-----"

The x axis has a different gearing setup to the y axis.

The x axis has a belt reduction setup where as the y axis is a direct drive.
Will this matter?

Do both axis have to have exactaly the same gear reduction/ratio's.?????

Peter
Australia

----- Original Message -----
From: "caedave" <caedave@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Wednesday, December 21, 2005 11:45 PM
Subject: Re: [CAD_CAM_EDM_DRO] Why does my X axis go faster than my Y
axis????


> First question has to be, are these indicated feed rates or actual
> measured
> feed rates?
>
> If you program in a cut of 45 degrees at this feed rate and this error
> shows, then a check
> on the angle cut should show as NOT 45 degrees, indicating a disparity
> between
> the total drive ratio of the two axis which would give us a starting
> point.
>
> The more info the better chance of an answer as this could be the result
> of
> mechanical,
> electrical and or electronic problem.
>
> Dave M.
>
> ----- Original Message -----
> From: "apples0_17" <apalais@...>
> Subject: [CAD_CAM_EDM_DRO] Why does my X axis go faster than my Y axis????
>
>
>> When I cut a part out using Mach3 my x axis will move faster that the
>> y axis.
>>
>> For example:
>>
>> I have used a basic shape that has a couple 90 degree corners and a
>> diagonal back to the start point.
>>
>> The shape is set to cut at 1300mm/min.
>>
>> The y axis will cut at 1300mm/min, but when the machine turns a corner
>> and the x axis starts moving. The feed rated goes over the set
>> 1300mm/min up to 1800mm/min.
>>
>> Then turns a corner and back onto the y axis and it is fine at
>> 1300mm/min again.
>>
>> When doing an angle say 45degrees, it will move at 1400mm/min.
>>
>> What is going on???
>
>
>
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