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Messages - modnet

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1
General Mach Discussion / Spindle setup - help
« on: February 28, 2008, 07:27:08 PM »
Hi -
I have a mill conversion on the go -

What is the preferred interface for the spindle speed control ? (step/dir or pwm)

It has a servo motor on the spindle - does anyone know if I can drive this with a gecko servo drive (or will it not go fast enough) ?
The servo is about 60volts and 500 step rev encoder

And what is the max number of steps a second that mach3 might do ?

Best regards
Dom @ Australia

2
General Mach Discussion / Re: Mach not completing moves ?
« on: September 19, 2007, 11:46:13 PM »
Solved ... Thanks All
The problem was / is the CV constant velocity turned on - At high feed rates, this was not just rounding - but chopping a foot off the corner !!!
We have the solution now.

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General Mach Discussion / Re: Mach not completing moves ?
« on: September 07, 2007, 05:52:26 PM »
Which version would you'ss currently suggest / recommend

Cheers
Dom

4
General Mach Discussion / Re: Mach not completing moves ?
« on: September 06, 2007, 07:35:32 PM »
Not a license issue - running over 400k lines of code no prob, but could be the Constanst Velocity setting, will do some testing and update.

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General Mach Discussion / Re: Mach not completing moves ?
« on: September 06, 2007, 05:59:55 PM »
We have tryed different speeds and it does effect the behaviour, But we are NOT losing steps, g01 x0 y0 always will go back to the origin,
Just not in the middle of a program - so corners are being cut off at speed, It is as if Mach is starting the next move before the current one is finished.

Does anyone know if there is buffering / queue of the cmds in Mach / or the steps in a Gecko controller ?

Cheers
Dom

6
General Mach Discussion / Mach not completing moves ?
« on: September 05, 2007, 06:48:59 PM »
We are using ver 1.8? and have a problem.
With multi passes the axis does not return to zero before start the next move.

We thought that it maybe losing steps but this is not the case - as you can still send it home and it will go back to the orignal position ?

We are moving at over 7 metres a minute ..
The problem goes when speed is reduced to 2 M a min

Any ideas - should we upgrade

Cheers
Dominic

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