Messages

1

General Mach Discussion / Re: 2 axis lineborine machine

« on: May 02, 2024, 02:10:10 PM »

Surely you just need to set a feed rate which is the root sum of squares of the two velocities?

2

General Mach Discussion / Re: Jog working but not step

« on: May 02, 2024, 08:26:09 AM »

Well, I'm out of suggestions, sorry!

3

General Mach Discussion / Re: Jog working but not step

« on: May 02, 2024, 07:12:20 AM »

Just try changing the polarity as suggested.  Can't hurt, may solve your problem.

4

General Mach Discussion / Re: Jog working but not step

« on: May 02, 2024, 06:57:38 AM »

For jog the dir level is constant unless direction changes.  What do you mean by frequency generation?

5

General Mach Discussion / Re: Jog working but not step

« on: May 02, 2024, 06:55:25 AM »

See Figure 5.4 on page 5-3 of the manual Rev 1.84-A2.  Look at the Dir LowActive column.

6

General Mach Discussion / Re: Jog working but not step

« on: May 02, 2024, 06:46:44 AM »

Quite, but if the edges of dir and step are synchronous the driver may not respond properly.  Very easy to try, just a tick box in config.

7

General Mach Discussion / Re: Jog working but not step

« on: May 02, 2024, 06:26:59 AM »

Have you got the DIR polarity wrong?  Sounds like the dir signal state may be changing on the edge of the pulse signal.

8

General Mach Discussion / Re: Button macro operation in different coordinate systems

« on: May 02, 2024, 03:35:27 AM »

Thanks, but does that actually convert the numbers?  If so it's ideal.

Edit:  just tried, it does!  Many thanks for the tip.

9

General Mach Discussion / Button macro operation in different coordinate systems

« on: May 01, 2024, 04:05:22 AM »

Morning all.  I've used my Mach3 Novamill conversion for a decade in mm mode with no problems.  I've written button scripts for tool height setting and edge finding which work well.  Now though I'm about to do some PCB isolation engraving and the tool chain I use (Fritzing+Flatcam) works in inches (as most PCB footprints are on a 0.1" grid).  Slightly to my surprise issuing a G20 command in the MDI sets the machine seamlessly to inch mode and from an air cut it looks like the machine correctly follows the profile. 

My question is about how macros that hard code things like tool setter height written for metric will behave if I try to use them in inch mode?  My setting button is 38.44mm high, and the Auto Tool Zero button script finds the button top then lifts the tool to 50mm - both numbers are hard coded in the script.  I assume that if the script is executed in imperial mode it will try to lift the tool to 50 inches which is impossible on this machine!  So I'll have to touch off the tool manually on the PCB surface. 

Is there an accessible parameter in Mach3 which could tell a macro which mode the machine is in, which a modified script could read and adjust its parameters accordingly please?

10

General Mach Discussion / Re: A project I am working has 6 different sections.

« on: April 24, 2024, 02:26:09 AM »

Please post your g code?