x axis travel exceeded

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blksmth
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x axis travel exceeded

Post by blksmth »

I keep getting this warning when trying to run a job. Is there some setting I am over looking? I down loaded the latest version of the software. I am including a current report and a few screen shots.
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swissi
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Re: x axis travel exceeded

Post by swissi »

blksmth wrote: Wed Jun 23, 2021 7:30 pm I keep getting this warning when trying to run a job. Is there some setting I am over looking? I down loaded the latest version of the software. I am including a current report and a few screen shots.
If you look at your CNC12 screenshot, the machine is currently in WCS#1 (G54) and the X axis is sitting at +1.9946 and you are sending the machine to X0.
Now look at the left side of the screenshot at the lower part and you see that the Machine coordinates show that the X axis is only 1.2920 away from the machines limit so your machine won't be able to go to WCX#1 X0 as that point is past the machines limit.

If that doesn't make any sense, check the manual about Work Coordinates and Machine Coordinates.

-swissi
Last edited by swissi on Fri Jun 25, 2021 10:39 am, edited 1 time in total.
If you are using Fusion 360, check out my CNC12 specific Post Processor
If you are using a Touch Probe, Tool Touch Off Device or a Triple Corner Finder Plate, check out my ProbeApp

Contact me at swissi2000@gmail.com
RichMaple
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Re: x axis travel exceeded

Post by RichMaple »

I'm a serious newbie so this might be really dumb, however, you're at +1.95 X in your current WCS but your machine coordinates are saying you're only at +1.292 X from your homed X. IE in order for your machine to actually go to X0, it would have to violate your X limits by about 0.7". Hence the warning.
RichMaple
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Re: x axis travel exceeded

Post by RichMaple »

(was typing while swissi responded, but we're both pointing out the same issue)
blksmth
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Re: x axis travel exceeded

Post by blksmth »

Ok I'll look at the manual. Is there a video that explains work and machine coordinates
ShawnM
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Re: x axis travel exceeded

Post by ShawnM »

Another thing I noticed from your pics is that you have your overall turns ratio exactly the same for all 3 axis. I think that's actually impossible for them to all be exactly the same. They may be close but I can't see how they are all exactly the same. My point is that I wouldn't expect extreme accuracy from the machine but if you are chopping wood then you may not notice that it's off.

After you home the machine and the machine coordinates are all zero and the DRO then reads all zeros are you then jogging the machine to the X0Y0 datum on your workpiece? Are you then setting X to zero and then Y to zero as your new WCS zero location? What CAD/CAM software are you using? There's a bit of setup before you just press the cycle start button.
RichMaple
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Re: x axis travel exceeded

Post by RichMaple »

There is much to be learned about this on youtube alone. But generally:

Machine coordinates are absolute and based on your actual machine home and limits. For most people this means 0,0,0 in some extreme "corner" of the box your machine is capable of reaching.

Then, you have a whole other set of WCS (work coordinate systems) which are what your programs actually run in reference to. This is useful for many reasons, but one of them is that if you have a workpiece smaller than your machine's work envelope, you may want to put that piece somewhere in the middle, to make room for clamps, tool access all around it, etc, etc. So you'd set a work coordinate system (say "G54") to be that X0 in that work coordinate system, to be X6 in the machine coordinate terms. and your Z0 in G54 may be Z3 in machine terms, since your program may have Z0 set to the top of the stock.

Put another way, these work coordinate systems (G54 and on) are location addresses that are all things you can change by hitting "set X zero" as an example. But the "reset home" button actually resets all axis to 0 for your machine coordinates.

There are many other reasons WCS are awesome. For example. you can permanently mount a vise somewhere and have your G55 WCS based in reference to THAT VISE, as opposed to G56 which you maybe set in reference to a few pegs that stick out of your spoilboard, etc.
blksmth
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Re: x axis travel exceeded

Post by blksmth »

Thanks for all the help it is working now after I watched some videos and took advice from people that answered There is a lot to learn
ShawnM
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Re: x axis travel exceeded

Post by ShawnM »

One of the best habits to get in to is after you load your file, press F8 GRAPH to graph the file and it will warm you of any errors BEFORE you press cycle start. It’ll save you a lot of headaches.
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