Centroid Community CNC Support Forum

Thanks for all your thoughts. I re-read the documentation on probe setup and realized that I had missed an important note. The probe trigger circuit can be programmed to either NO or NC. I missed the fact that the probe detection circuit must be NC (standard fail-safe wiring). Therefore the attached...

Just a quick question. When you wired your probe to input 7, did you use the header screw connector terminals or the DB25 connector?

Thanks... Richard

Thanks... I will have to research these a bit. I like the ability to adjust the pressure.

Regards... Richard

Thanks for the clarification and detailed explanation. This seems very straight forward. I think I will email cliff about switching 5V vs. 24V The current is so small I can't imagine it being an issue.

Thanks again... Richard

Thanks for all your thoughts. While I understand the theory here, I have virtually hands-on experience. All the best... Richard

I am working on my very fist CNC conversion. I will be converting a Precision Matthews PM-833TV mill to CNC. Bench testing has been completed!! The components I will be using are: -Acorn board -Three closed loops stepper drivers (Stepper Online CL86Y) - powered with a 70V/35V Toroidal transformer (A...

Thanks for all your replies. Very helpful information. Just after posting, I stumbled upon another forum where someone converted the same PM-833TV and used the gas strut show below. He reported excellent results. I really like the idea of unloading the Z-axis as it improves the Z-axis movement and s...

Thanks for your thoughts Marty. Very helpful. I read the documents you suggested and have two questions: 1. If I understand you correctly: The connection between common & probe signal tell CNC12 that the probe has been triggered. The connection between common and probe detect tells CNC12 that th...

I am a newbie with CNC and working on a CNC conversion of a Precision Matthews PM-833TV milling machine. This will be used in my home shop for hobbyist work. I am almost finished with wiring and bench testing of my Acorn control panel. So far, everything has gone very well! I was just pre-wiring for...

Thanks for your thoughts! I was thinking about adding an air spring to off load the Z-axis and glad that you mentioned it. I was not thinking about it with regards to solving the issue with the Z-axis slipping when not under power. Thanks for bringing it to my attention. On the bench, when I short t...