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Author Topic: No Y axis movement from G code  (Read 6505 times)

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Offline gavna

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Re: No Y axis movement from G code
« Reply #10 on: July 30, 2013, 04:39:11 PM »
Ok thanks Hood,

Would you say that it most probably would be the board on the machine then?

Its strange everything works fine if i do a drilling program or even jog manually. But not if I run a cutting program.

Gav

Offline Hood

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Re: No Y axis movement from G code
« Reply #11 on: July 31, 2013, 02:45:27 AM »
That is indeed the strange thing about your problem.
 If you MDI a move does the Y axis work?
Hood

Offline gavna

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Re: No Y axis movement from G code
« Reply #12 on: July 31, 2013, 03:14:27 AM »
Sorry Hood,

Is MDI moving it manually with the jog buttons? If so then yes but if MDI is manually inputting data then im really not sure what to type in to make it move!

Thanks Gav

Offline Hood

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Re: No Y axis movement from G code
« Reply #13 on: July 31, 2013, 03:44:58 AM »
MDI is Manual Data Input and it is entering a move from the MDI line.
Say for example you zero your Y axis then you type something like G0Y10 then pres your keyboards enter key, the axis will  rapid 10 units in a positive direction.
Similarly if you type G1Y10F10 the  axis will move 10 units but this time at a feed rate of 10 units per minute (assuming you are in feed per minute G94) mode)

Hood

Offline gavna

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Re: No Y axis movement from G code
« Reply #14 on: July 31, 2013, 07:28:40 AM »
Ok thanks, I will give this a try once i am at home later on today and see how we get on.
Gav

Offline Hood

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Re: No Y axis movement from G code
« Reply #15 on: July 31, 2013, 02:02:32 PM »
I found the parallel port and have just checked with your xml and Mach is outputting the step pulses on the Y axis so looks like it could be your hardware or wiring that is the issue.
 Let me know what your MDI tests reveal.

You have the kernel set to 60KHz when all you require with the motor tuning you have is 10KHz so I would suggest you set it to 25KHz and reboot.
It may also be that your drive is requiring a wider pulse, you could try using Sherline mode and see if that helps.
Hood

Offline gavna

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Re: No Y axis movement from G code
« Reply #16 on: July 31, 2013, 02:23:10 PM »
Hi Hood,

Ive just tried the manual input and every axis works fine just as it should.
I will go and set the kermel to 25KHz and reboot as you say. Then if that doesn't work i'll try the sherline mode!
Ive tried 2 computers so know its not that thats the fault as this happens with both! May well be the board then. Will see what the next steps bring.....

Thanks Gav

Offline gavna

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Re: No Y axis movement from G code
« Reply #17 on: July 31, 2013, 02:59:43 PM »
Ok so,
Set the kernel to 25KHz and no joy.
Then tried the sherline mode and that was worse! The MPG mode wouldn't even work then either so have set it back as it was.
Im really confused with this!

Gav

Offline Hood

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Re: No Y axis movement from G code
« Reply #18 on: July 31, 2013, 05:39:37 PM »
Ok that is strange, do you know what drives, breakout board etc  your machine has?
Hood

Offline gavna

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Re: No Y axis movement from G code
« Reply #19 on: July 31, 2013, 05:58:49 PM »
To be honest Hood I don't.
I bought this from eBay as a home built machine and was working fine until i moved it a few months ago (maybe 6 or more?).
I haven't used this since then and just set it back up to run. I know its got a breakout board on it but I don't think it has anything else (no drive boards for the motors).
They are run straight off the breakout board!

I want to get this working again to make wooden craft items for my little buisness Ive started with my girlfriend. Make enough money to buy a decent machine!
So I'm now guessing I need a new board as it could be that what is the problem.
Might try a cheap one on ebay to test? lol
Do you have any suggestions or recomendations?

Your help is very much appreciated,
Gav