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General Mach Discussion / Jog speed is very slow
« on: September 09, 2011, 05:30:21 PM »
I have finally got a free weekend to work on my Hurco.
The X axis motor mounted and working. The jog speed is super slow. (About 20 inches a minute) or ( .5 meters a minute).
Looking at the steps per revolution stuff, I am lost. The steps per unit has me messed up. My X axis is direct drive coupling, .200 pitch screws, 5 TPI.
Y & Z axis are the same pitch screws, and they each have a 26 tooth pulley on the motor & a 26 tooth pulley on the ballscrew. 1:1 drive, isn't it?
Last night, under motor tuning, when the steps is set to 4000, it jogs at a respectable speed.
But, this isn't right, it was just a test.
My encoders are set at 500 and the motors are set at 2000.
After looking at all kinds of overrides, jog%, etc. I can't find anything that will speed it up.
This is the sample MACH 3 download, it is at 25k kernel speed.
There must be something I am overlooking.
Before all of the motors are installed, does the encoder need to be set to a different count?
This, because the Y axis motor has to be wiggled around and slid through an access door in the knee to install it.
Also, my limit switches are all installed, but when I trigger them with a screwdriver, they don't react.
Is this because the machine hasn't been homed out?
I don't want to get too many things going at once.
Just get the jog speed set for now.
I am using the sample .xml file from PMDX with my limits & home switches sharing pin #12 ( I changed these inputs in Mach also)
By the way, my drives are Gecko 320x's.
Do the [gain] or [pulse multiplier] settings need to be changed?
This thing is close to running. I am probably making out the steps per unit, & motor RPMs more complicated than they really are.
I hate to drag anyone into this with the machine not together enough to run certain things for test purposes , but I am at a wall.
Thanks for all of the help,
JAckal
The X axis motor mounted and working. The jog speed is super slow. (About 20 inches a minute) or ( .5 meters a minute).
Looking at the steps per revolution stuff, I am lost. The steps per unit has me messed up. My X axis is direct drive coupling, .200 pitch screws, 5 TPI.
Y & Z axis are the same pitch screws, and they each have a 26 tooth pulley on the motor & a 26 tooth pulley on the ballscrew. 1:1 drive, isn't it?
Last night, under motor tuning, when the steps is set to 4000, it jogs at a respectable speed.
But, this isn't right, it was just a test.
My encoders are set at 500 and the motors are set at 2000.
After looking at all kinds of overrides, jog%, etc. I can't find anything that will speed it up.
This is the sample MACH 3 download, it is at 25k kernel speed.
There must be something I am overlooking.
Before all of the motors are installed, does the encoder need to be set to a different count?
This, because the Y axis motor has to be wiggled around and slid through an access door in the knee to install it.
Also, my limit switches are all installed, but when I trigger them with a screwdriver, they don't react.
Is this because the machine hasn't been homed out?
I don't want to get too many things going at once.
Just get the jog speed set for now.
I am using the sample .xml file from PMDX with my limits & home switches sharing pin #12 ( I changed these inputs in Mach also)
By the way, my drives are Gecko 320x's.
Do the [gain] or [pulse multiplier] settings need to be changed?
This thing is close to running. I am probably making out the steps per unit, & motor RPMs more complicated than they really are.
I hate to drag anyone into this with the machine not together enough to run certain things for test purposes , but I am at a wall.
Thanks for all of the help,
JAckal
, I had changed it's name to the Hurco file. (This was back in March.)
