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  1. #11
    Quote Originally Posted by Kitwn View Post
    Manually hitting 'Ref All' becomes redundant and should never need to be done once propper homing is installed.
    Every thing you said Kit was spot on except for this bit, but your excused with you being a Linux Geek.. But I'll clear it up for the sake of those new to Mach3.

    Hitting REF ALL works in 2 ways depending on Home Input settings. If the HOME inputs are NOT enabled then REF ALL will ZERO the HOME position where ever the machine is parked.
    But if the HOME Inputs are enabled then REF ALL will start the HOMING Sequence(macro) and the machine will set off looking for switches.

    So you MUST use REF ALL to set MACHINE ZERO which is the bit KIT doesn't know with not using Mach3, just be careful if you have enabled the HOME inputs as the HOMING sequence will set off and Mach3 as no clue if switches are fitted or not so will keep moving until it hits a something.!!

    Not fitting HOME switches is crazy unless you have repeatable hard stops because they are life savers on jobs when a cutter breaks or power goes off in middle of a job etc. They allow you to get back to zero or any point in a job easily and accurately. They also allow you to break large jobs into separate sessions at the machine ie: over a few days and repeatably get back to WORK ZERO or a line you stopped the job at.!
    Last edited by JAZZCNC; 25-06-2020 at 11:32 AM.
    -use common sense, if you lack it, there is no software to help that.

    Email: [email protected]

    Web site: www.jazzcnc.co.uk

  2. #12
    Thanks for clearing that up Dean. I've never used MACH3 or built a machine without homing switches.

    The ability to accidentally wipe out all your homing references with one button push would be a bit silly and I should have guessed it's not the sort of thing a man as clever as Art Fennerty would have written into his software.
    An optimist says the glass is half full, a pessimist says the glass is half empty, an engineer says you're using the wrong sized glass.

  3. #13
    well thats makes sense, i will fit limit switches as well as running the soft limits, thanks for all the advice
    daveo

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