Machsupport Forum
Mach Discussion => General Mach Discussion => Topic started by: maxmyo on September 21, 2007, 01:08:30 AM
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I'm totally new to the cnc world but i managed to make the table and a board to control the motors and i'm using this board http://pminmo.com/3axis/3axis.htm and i tested it with another software and it spin the motors very well but when using Mach3 i can't move the motors at all i used the configuration as instructed in the board manual for pins on the LPT port and also this configuration http://www.pminmo.com/wiki/index.php?title=MACH3_setup
which is made specifically for this board with mach3 but nothing happens at all but i noticed that when i run gcode file " the road runner" and start cycle i notice very very small movements on one motor like 2 or 3 tiny tiny steps but thats all
please help me configure my board with Mach3
BTW i'm running a new computer with 3.2GHz processor if thats matter
thank you in advance
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Go to the Mach3 folder and copy your XMLfile for the profile you are using and attach it here. If you have not made a custom profile it will be Mach3Mill.xml Also you will have to rename it to be able to attach it to a post.
We can then have a look and see if we can find any problems in the setup.
Hood
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OK here is the file
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Sounds like you need to reverse your Step and direction pins...
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thank you for your reply
the step pins configured for the DB female in the board is 3 6 9 for the X Y Z and the dir pins is 2 5 8 and here is the photo for the recommended by the board maker http://www.pminmo.com/wiki/index.php?title=Image:Mach3MotorPin.png
and if you checked the xml file you will find that i configured it right i don't have a clue of whats wrong
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Hi, Maxmyo
Some printer cards, cables and cnc boards don't support/use all the same Gnd pins 18 through 25, Thy just use a couple of them.
Check that you have a good Gnd from the computer and your cnc board, I've seen this a couple of times
Hope this Helps, Chip
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thanks for your concern
but like i stated the board is already working with another software and the motors spin smoothly but i would like to use mach3 to control my cnc but whatever i try the best result i get is the very tiny steps for just the Y motor thats it
i'm clueless of what to do
please any hint would be appreciated
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Have you set the steps per unit values and the speed and acceleration values in the motor tuning screen? Will the motors run from the tuning screen?
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thanks for your help
yes i did set the tuning motor parameters as in this picture
http://www.pminmo.com/wiki/index.php?title=Image:Mach3MotorT.png
but i don't know what do you mean by running the motors from the tuning screen
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hey guys i'm waiting for along time now and Hood asked for XML file and i provided it but didn't recieve any answer so should i forget about mach3
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Hi, Maxmyo
Give this a try, Change the Dir/Steps Low Actives around.
Also have you tried the other Printer port address for Port #1, Other than std. 0x378, Tried 0x278.
Look at your other cnc program that works, Maybe it is using a different address.
Chip
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Sorry for not replying :(
Had a look at the xml and first look it seems fine as far as setup is concerned, but have a look at your Steps Per Unit as they could be on the low side. Are these drives microstepping, half step or full step? What is the TPI of your ballscrew/leadscrew?
What Ron is meaning is go to Config menu then down to motor tuning. Use the sliders to increase/decrease your values for each motor and test by using the Up/Down arrows. Once you have the tuning the way you want then save the axis settings and move onto the next.
Hood
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Try to activate the "Gecko half step mode" option on the Config->motor and pins tab