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General Mach Discussion / Re: Spring loaded touch plates for Z auto-zero
« on: April 22, 2014, 06:59:24 PM »
First, you either have a problem with Mach3, or with the macros you're using. The speed should never change.
Often times, failure to retract and other similar issues can be caused by noise on the probe input pin. If you're macro has good messages spread throughout, you can often tell what went wrong by the messages displayed. Eben a simple "Finished" message at the end of the macro can be a big help. If you see the message, but the probing didn't work correctly, there's a very good chance that noised triggered the input.
Another source of trouble is if your macro doesn't account for being in incremental mode. A typical macro designed for use in Absolute mode can easily drive the tool e into the plate after probing.
There are hundreds of people using the macros in my 2010 screenset, and I've not heard a single report of an issue with the auto zero macros, in over 3 years.
While I don't believe that a spring loaded plate should be needed, the spring shouldn't affect the accuracy, unless you're probing too fast.
Often times, failure to retract and other similar issues can be caused by noise on the probe input pin. If you're macro has good messages spread throughout, you can often tell what went wrong by the messages displayed. Eben a simple "Finished" message at the end of the macro can be a big help. If you see the message, but the probing didn't work correctly, there's a very good chance that noised triggered the input.
Another source of trouble is if your macro doesn't account for being in incremental mode. A typical macro designed for use in Absolute mode can easily drive the tool e into the plate after probing.
There are hundreds of people using the macros in my 2010 screenset, and I've not heard a single report of an issue with the auto zero macros, in over 3 years.
While I don't believe that a spring loaded plate should be needed, the spring shouldn't affect the accuracy, unless you're probing too fast.