Machsupport Forum
Mach Discussion => General Mach Discussion => Topic started by: euro on June 30, 2008, 08:02:57 PM
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hi folks,im new here.im having a problem with mach3. when i zero my x axis and then i jog it up by say .378 it moves 3.78 on the dro so when i run code i dont get the right depths any ideas thanks
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Sounds like your steps per aren't set right in motor tuning or maybe you have changed the drive from 10 mirosteps to no micro steps. Is this a new set up?
Brett
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thanks brett for your quick respond . no this isnt a new setup it was workin fine on friday but today its got the monday blues , this machine is a plasma/router table when i run it in plasma everythin is fine but not in routerin
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where do you find the microsteps in mach
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OK, you are running 2 different profiles? Have a look at motor tuning, steps per for each profile if you are and compare the z axis steps per.
Brett
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Micro steps arent set in Mach and if all the hardware is the same between the set ups, it will be a config. issue.
brett
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Hi..maybe a 10:1 Scaling inadvertantly set ?
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yes im runnin two profiles and i did check moter tunning and there the same in both profiles. i dont have config issue on my screen
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sorry brett i see what you ment its a config issue
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were in mach would a 10;1 issue happen
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Yup, Overloaded is right I bet. Do you have any scaleing values in your scaleing dros? Small dros just beside the axis dros on the program run screen. Should be 1:1.
Brett
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i bet i do never notice ill have to run to the shop and see the people where i bought made there own screen so it is diferent than the default screens thanks for your help ill get back and post my findings
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no i dont have scaling dros is there somewhere in mach where i can scale from
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euro,
Can you post your xml files and your screen sets? I will look at those and try to find the problem.
Brett
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You might enter a G50 in the MDI to be sure all scaling is cancelled and reset to 1:1, then try the move again.
RC
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thanks a lot for your help i got a hold of tec support and he thinks i must of typed in 2000 instead of 20000 steps under moter tunning ill double chek that in the morning agian thanks
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Brett had that nailed for you in the beginning......I didn't realize you had changed stuff.
RC
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the problem started when i ran a file i got from the vectric forum could it had been what was in the g codes that changed the settins i know i didnt
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brett also mention microsteps that i might have changed it where do you find the settins for the microsteps so i can also check that thanks
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Follow these steps..if your steps per is 2000, make it 20000 then be sure to save, then try the Z move again.
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Euro, If it is the code that changed it, it would probably be a G20 or a G21 but the ratio isn't 10-1. It will put your machine in Imperial or metric units. Go to MDI and typr in G 20 G 50 and hit enter. Now type G1 X1 F10. Does it travel 1 inch?
Micro steps are not set in Mach, they would be set on the drives. If you haven't changed anything mechanically, I doubt this is the case. Some drives change this option with dip switches, others with jumpers I think (possibly one fell off due to vibration?) and others aren't adjustable.
Brett
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I dont know how the G code could change it to where a G50 would not clear it if it was scaled. I'm almost certain that it would not change the configuration settings in Mach.
Did you CLOSE the G code in Mach before you did the jogging ?
There could be an active G51 in the loaded code...if there is a program loaded.
Anyway, G50 Z.378 in MDI would clear it.....I think,
RC
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Euro, I see in your first post now ...you said you jogged the X axis UP. I mistook this for the Z axis. Sorry
Good luck guys,
I'll check back tomorrow.
Brett, I just thought we could verify with the steps per setting before going into the hardware panel.
AMF,
RC
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you were right brett the moter tunning was wrong thanks,everything is good now,back to relax,this is a great forum
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No problem, glad you are sorted. :)
Brett