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24-08-2019 #11
1) Within Mach, can you cause the DROs to change by using the cursor right key?, if not, can you do so with a "G0 X10" on the MDI?
Yes dro changes - machine does nothing
2) Within Mach, can you cause the DROs to change by using the cursor left key?, if no, can you do so with a "G0 X0" on the MDI?
Yes Dro moves with left key (machine does nothing
- Really stupid question and I’ve legit spent hours googling but where are the pins? My board seems to be different. Are they the pins labeled “A””X””Y” or are those limit switch pins?
Really appreciate it and would take you up on that - I’m on Stradbroke island, more beach and less concrete
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24-08-2019 #12
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24-08-2019 #13
The pins are ultimately the screw terminals on your breakout board. For example in the photo you can see estop and home. It would help if you could upload a photo of the whole board.
You are looking for a screw terminal with the label step and the label direction. These send signals out to the drivers to turn the motors.
So to follow Doddys help touch one probe of the multimeter onto the screw terminal marked direction for the axis that should be moving and the other onto something marked ground. When you use the keys to go left and right that terminal should switch between 0V and 5V.
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24-08-2019 #14
Lotto?, no, unfortunately. And if I could guess against the odds then I might be bold enough to assume the OP's wiring to the BOB.
Examine https://softsolder.files.wordpress.c...d-overview.jpg for example, that looks to put X Step and Direction onto pins 2 and 14, respectively. The parallel port is configured - not by Mach, but by the utility of the parallel printer interface to provide 12 outputs and 5 inputs. These are hard bound to the whateveritis pins, and most BOBs will present these notionally for particular functions (like X step, X dir), but actually they are only generic inputs and outputs. There's nothing stopping you using a X-DIR for your Z-Step, for example, though you'd be sadistic to try (I did once swap one of the primary axis onto the A-Axis when one output on a BOB failed).
My one issue is that the OP changed many things, but not the BOB wiring (unless he didn't mention that). The pin mapping is... not the last thing that I'd check... but certainly not the first.
I've only had the pleasure of 3 machines, but probably enough architectural changes on two to get close to your five. I know that there isn't a hard pin mapping.Last edited by Doddy; 24-08-2019 at 09:00 AM.
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24-08-2019 #15
Literally havnt changed a thing - I found the XML file that comes with these and it matches the one I’m using. I’ve literally unplugged it from the power point and unplugged the parallel cable from to the pc and loaded it on to a trailer - moved then plugged it back in again.
Now I think of it the last time I used it it the x axis was jamming and skipping every now and then if that’s relevant.
I’ll be near it in about 15min and will take some picture of the board.
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24-08-2019 #16
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24-08-2019 #17
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24-08-2019 #18
OP: Thanks, that helps a lot. Random googling of the board name/model suggests that these were boards installed by Syil as part of their standard build. There's easy reference to Syil 3's and 4's having the same board. I wouldn't necessarily trust the info from blind but there looks to be some level of consistency. The following was taken off another thread referencing a '3':-
This might be close!!!
Signal name pin I/O of the Signal
7. X pulse
17.X dir
6. Y pulse
8. Y dir
5. Z pulse
16. Z dir
4. A pulse
14. A dir
2. Spindle pulse
1. Spindle dir
3. Signal 1 relay1?
9. Signal 2 relay2?
12. X home input
13. Y home input
10. Z home input
15. A home input
11. E-stop input
and gives us some confidence with the content presented in the images from the OP's post and the XML file he's using.
I'd still recommend the test that I suggested earlier. Part of the logic there (I have to admit my interest petered out towards the end of the wine glass last night whilst typing away) is to understand the basic operational status of the BOB, the wiring and the PC. I know I've only identified the direction pins - that's deliberate and because these are easily measured with a meter, which from your original post I believe you have. I'd like at some point to understand that behaviour on the step pins - but let's address the easy stuff first. There's another thread of thought - actually my first - which was to trace the behaviour of the e-stop but we only now know the pin mapping of the inputs. For now, concentrate on the earlier tests that I described.
The board looks a bit grungy - but photos / lighting can be very deceptive. Again, the tests above will help understand if the board is working.
The statement that you believed you might have been losing steps earlier - that's interesting - it shouldn't result in the absolute freezing of the machine, nor that the e-stop isn't recognised, but might yet be another problem to be resolved. Let's concentrated first on just getting an axis to move.
MikeLast edited by Doddy; 24-08-2019 at 10:27 AM.
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24-08-2019 #19
I’m standing in front of it atm with a multimeter - just can not figure out where the pins are
Actually disregard that - they are labeled ‘pin xx’ on the board correct?
Sent from my iPhone using TapatalkLast edited by IhateDoug; 24-08-2019 at 10:31 AM.
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24-08-2019 #20
You're absolutely correct, and I've fallen foul of my own criticism of assuming too much. Looking at the board the axis drives are presented onto the IDC headers (the 16-pin black connectors, 5-of) on the board. Okay, that gives us a bit of an issue to understand how these are wired.
I'm guessing there are at least 3 ribbon cables normally plugged into these (I think I did see this on an earlier piccy).
I'm going to change tack back to the e-stop, but I'll post this for now knowing that you're stood in front of the machine scratching your head. Give me 20 minutes to write up another thought.
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