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Type: Posts; User: dharmic

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  1. Replies
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    Re: 4th axis touch probing

    Kudos to someone who can park their ego long enough to recognise and admit to themselves (noone else really matters) that they've been caught up by their own brain. Chill, or better: laugh, man. We...
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    Re: 4th axis touch probing

    I just told you twice man. Nothing to do with Mach, it's in a comments. "ve" is just the sound at the end of "positive" or "negative". +ve is shorthand for positive. -ve is shorthand for negative....
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    Re: 4th axis touch probing

    Per my last post mate. Nothing to do with Mach3 and I'm a n00b there too. +ve, -ve are pretty common abbreviations where I've come from.
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    Re: 4th axis touch probing

    Ah: shorthand for positive +ve, negative -ve etc.
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    Re: 4th axis touch probing

    ve?

    Happy to share - turns out I needed it myself last week so thank you for promoting me to write it up.

    Agreed, makes thing a lot nicer and more comfortable putting the 4th into play!
  6. Thread: OmioCNC report

    by dharmic
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    Re: OmioCNC report

    Square for T nuts. Less likely to spin when you're loading up the clamping force, bigger surface area means less likely to create indent in the back face of the T track.
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    Re: 4th axis touch probing

    Sorry, to be clear, my issue with no movement usually came from me having hit escape beforehand. It put it in some kind of panic no-movement state. Hitting it again clears that state from what I've...
  8. Thread: OmioCNC report

    by dharmic
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    Re: OmioCNC report

    Pretty sure someone did a while back, somewhere in this behemoth of a thread.

    I ended up using coach bolts upside down in the T slots and screwing the nuts down on top.
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    Re: 4th axis touch probing

    Apologies for the misleading prompt - it started as radius but then I realised I was doing the mental divide-by-two from what came off the micrometer and that there was a thing called a computer...
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    Re: Anybody know what brand this bandsaw is

    I'm in Oz so we have "Hare and Forbes" or "Hafco" import and rebrands of this kind of stuff, but it looks identical apart from the colour to the machine I've been happily using for nearly 20 years....
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    Re: Teensy Weensy Drilling op help?

    Imagine my frustration (running from the MDI, this didn't seem worth the hassle of CAD/CAM) when I discovered that

    G91 G83 A72 Z1.0 R2.2 Q0.2 L5 F5

    would crawl to A72, then do 5 peck cycles in...
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    Re: Teensy Weensy Drilling op help?

    Thanks, Roger.

    In the end I flattened off a land with a 2mm endmill, then went 5mm/min 0.2mm peck.

    Did a trial run with aluminium tube and it worked beautifully, then brushed the last spare bit...
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    Re: Teensy Weensy Drilling op help?

    15mm/min is about 6IPM but I'll give it ago at half that, with a 0.4mm (0.015") peck. I don't have a centre drill with a chisel point that small but I could mill a flat land with a 2.0mm slot drill...
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    Re: 4th axis touch probing

    Yep - normally I have Z touched off at the highest part of the workpiece, so any sideways move with Z not negative is safe - worst, it'll scratch as it kisses at z=0.

    With this setup, Z = 0 at A...
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    Teensy Weensy Drilling op help?

    Hi all

    Having a bit of a nerve wracking time at the moment, hoping someone out there is equipped to say "you idiot, all you need to do is XYZ" :)

    I have a 3/16" (4.76mm) OD x 0.9mm wall...
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    Re: 4th axis touch probing

    Yeah threw another couple hours at it yesterday - as well as the probe tips. But I'm happy with it now.

    FWIW once I'd run this, I then jogged to just over my tool setter probe (the simple puck...
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    Re: 7 Axis Swiss Mill-Turn (DIY)

    Sadly no: he’s been fvcked hard by the bright orange douche canoe’s tariff frenzy and looking at various ways of getting the frames (which are nearly finished) populated with hardware, electronics,...
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    Re: 4th axis touch probing

    Okayyy

    To save you from busting probe tips (I use sacrificial carbon fibre rod and managed to ping 3 of them getting this right)...



    'Simon's 4th Centre Finder


    rodDiam = InputBox("Make...
  19. No argument here. Fusion is an awesome...

    No argument here. Fusion is an awesome introduction to cad cam and, so long as you’re aware of the potential limitations and pitfalls, it’s a good workhorse for probably 99% of jobs.
  20. Re: CNC Mini series for beginners and Hobbyists

    Everything else aside: try opening Fusion and the files you’re working on this week on a laptop with ****ty internet connection.

    Perhaps internet availability is something people can take for...
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    Re: 4th axis touch probing

    Sounds like you have what you need (apart from time) to crack on with it. Have fun!
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    Re: 4th axis touch probing

    I was thinking about that too. I have the same issue. It occurred to me that regardless of the contact height, front and back will be symmetrical so getting bang on the widest part is not critical...
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    Re: 4th axis touch probing

    So, turns out someone is a filthy liar. I never created a macro for the 4th, just ran it hand-entered via the MDI.

    What I DO have is a macro I wrote for finding the centre of a hole:


    'Simon's...
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    Re: 4th axis touch probing

    Yeah, next time I'm near the machine I'll have a look.
  25. Re: CNC Mini series for beginners and Hobbyists

    I know, and that works for some industries. Others have such a high trust barrier that it's just not worth doing. And all that aside, the other issues are still there.

    I use Fusion360 for home...
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