Probe Centering with Mach3 Tutorial

[Dean jeffery]

Correct but if he's not probing a bore then he needs the info, he did say edge


Now the proud owner of my own personal CNC machine happy days.

[Clive S]

Correct but if he's not probing a bore then he needs the info, he did say edge


Now the proud owner of my own personal CNC machine happy days.

The way I have read it is that the code (in this case) is only as stated and been setup to find the centre of a hole and not an edge finder. But I stand to be corrected if I have miss read it.

Of course if you want to find an edge then you will need the diameter of the tool stroke probe

[JAZZCNC]

Clives correct the basic code below doesn't need tip Dia to work.! . . . But this code is not safe and only has basic error checking.?

For instance it doesn't check to see if set to machine coordinates and warn the user or at least change on the fly and return when done.
The code gets the current value from WORK coordinate DRO and then adds +/- 75mm travel distance to variable which it then uses this value for G31 probe command.
If control set to G90 absolute coordinates before the probe is activated then will try to go to the value but in machine coordinates which could and will be very different to WORK coordinates.!! . . . . CRASH BANG SNAPPPPPP.

[Clive S]

Well said Dean I had not read the code in that detail and you are correct the code does need changing but to be fair to Ricardoco he does state run at your own risk.

[Neale]

...and this is one reason why soft limits are useful? Although I guess you will snap the probe first anyway!

[Clive S]

...and this is one reason why soft limits are useful? Although I guess you will snap the probe first anyway!

In my opinion PROVIDING you have homed the machine soft limits are well worth having.

[JAZZCNC]

Well said Dean I had not read the code in that detail and you are correct the code does need changing but to be fair to Ricardoco he does state run at your own risk.

There's more wrong with it than just this and to me with no disrepect to anyone but people shouldn't post Code unless they know it's safe.! . . . Saying use at own risk isn't acceptable to me.