Messages

1

General Mach Discussion / Re: Tangential arcs

« on: December 14, 2011, 03:45:39 PM »

I found this post and has cured my problem
More technical explanation in "Using Mach3 Mill" users guide.
Page 10.1.5 Co-ordinated linear motion
Page 10.1.6 Feed Rate
Rev


A few folks on different boards have been having problems with jerky motion on their machines (including me). The machine acts like Constant Velocity is not turned on even though the little green border is lit around the CV button.

A poster on the Mach support board suggested I turn off CV (go to exact stop) on the general config page, and turn off the CV Feedrate button on the Settings Tab then add G64 (Turn on CV mode) in my gcode. I tried this and it worked!

After a bit of experimenting I figured out that all I really have to do is go and turn off the CV Feedrate button on the settings tab and everything is good. Only problem is that it comes on by default whenever I start mach.

I also noticed that choosing "save settings" from the config menu somehow turns CV Feedrate on. So if I change anything I have to remember to go turn it back off again.

Hope this helps if anyone is experiencing the jerky motion.

2

General Mach Discussion / Re: Tangential arcs

« on: December 08, 2011, 06:48:30 AM »

Its more like hesitation, it seem like it has to have a think about its next move.
When cutting a rectangle with two semi circles on either end it has no trouble transitioning from a straight line
to the semicircle and back to the straight line.
But when cutting a shape such as a airfoil where the curve is made up of many arcs it hesitates from one arc to the other.
The system is running at 35 volts regardless of motor running or not. 

3

General Mach Discussion / Tangential arcs

« on: December 08, 2011, 03:54:58 AM »

Hello everyone,
Can anyone help please, I have mach3 driving a Homann MB-02V6 breakout board and gecko 203V's
When cutting tangential arcs or compound curves  the motor stops or stall between each arc and I
cant get the motors to move linearly.
Is there a setting I have missed?

4

Mach4 General Discussion / Re: New people welcome !! Come in here and introduce your self!

« on: July 12, 2007, 08:31:38 PM »

G'day, my name is Revine I live on the gold coast, Australia.
I have been in the automotive industry for thirty years and more and love to tinker with anything mechanical.
My hobby since knee high to a grasshopper has always been building model air craft and flying anything from models to hang gliders and ultralight aircraft.
The models has grown to ultralight aircraft, the parts need to be made got whole lot more that's why I'm here hoping to learn.
I'll be asking if you all could help.
Many thanks,
Revine