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Messages - lesbright

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1
I haven't used Mach3(just planning), but the G41/G42 command offset depends on the direction of travel to determine if it moves left or right. Think of your cutter being in front of you and you are following along behind it. If you use G41 the cutter will cut to the left of where it would cut without the G41. If you use G42 it will cut to the right of where it would cut without the G42.
In your program there are G2 and G3 commands. When you cut with a G42 and a G2 (clockwise circle) from the behind the cutter view point the tool offset will be to the inside of the circle. With a G42 and a G3 (counter clockwise) from the behind the cutter view the tool offset will be to the outside of the circle.
Have I made this as clear as mud?
In other words if the problem is starting when you switch from a G2 to a G3 command the above reason could cause it.

2
General Mach Discussion / Re: Mach3 Mill and CNC JR
« on: July 14, 2007, 10:30:17 PM »
A little something to add the steppers are 5 phase with 5 leads. Will the G100 handle this?

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General Mach Discussion / Re: Mach3 Mill and CNC JR
« on: July 12, 2007, 10:51:45 PM »
All right let me show how little I know. When you ask "What do I have for drives" I assume you mean the stepper motors. And I think they can be run with step and direction. I have run NC and CNC for the past 30 + years but this is the first time the machine is mine and I
have to do the repairs. P Port? I don't understand is this the parallel port or something different? The type of parts I hope to machine are
molds to cast parts mainly for use with stained glass.

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General Mach Discussion / Mach3 Mill and CNC JR
« on: July 10, 2007, 06:18:45 PM »
I have a older CNC JR that runs on DOS and has an AC Tech motor control.
The Driver boards have been back to the factory twice and still don't work correctly.
I am interested in replacing the driver boards and running Mach3 Mill.
Possibly Gecko G100. Can anyone offer any suggestions of other driver boards. I
watched some Mach3 videos and they were down loading firmware to flash the controls.
Where I am working there will not be Internet access.
Thanks for you time.
Leslie A. Bright

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