X axis stops

Post Reply
nywoodworker
Vectric Apprentice
Posts: 30
Joined: Sun Oct 28, 2012 8:01 pm
Model of CNC Machine: Industrial CNC Router Apprentice 404

X axis stops

Post by nywoodworker »

I have an Industrial CNC Router.
When I move the x axis move about 3 ft , left to right, and stops. I have checked the gears and have also replace a linear bearing thta i thought was bad. Their are no nicks or other things that appear to be causing this . It has been an on going problem. I have switched the x and y cables. The x axis still stops. This is not a smooth stop but more like something binding, the x motion has a jerky back and forth jerky motion. To get the x axis to move again I have to push the gantry manually. If I manually push the gantry to the lest several inches it will work.
Can any one help me??? The CNC seems to be working fine until the x axis reaches this point of travel. I have reset both hard and soft limits. The problem does not go away. Below are the specs for my CNC.
Can any one help me ?????
Dave

Active Transit /Cutting speeds 900/700 IPM
Mechanical home switches
R and P on X and Y Drives, Ball Screw on z axis
Power 220
Anti Backlash

Router Features Specifications
Table Size 52" x 52"
X,Y,Z Working Area 49" x 49" x 12"
X,Y,Z, Traveling Position Accuracy +/- .002"
Frame Structure Steel
X.Y Structure Anti backlash Rack and Pinion
Z Structure Orbital Ball Screw
Max Speed 0-900 IPM
Max Working Speed 0-700 IPM
Spindle Power Motor High Frequency Conversion Water Cooled Motor
Working Mode 24000r/min
Working Voltage AC220V
Command Includes MACH controller, G Code, dxf
Interface PC
XY Working Tolerance < 0.02mm
Software Mach3, Type3 full function 3d

User avatar
Rcnewcomb
Vectric Wizard
Posts: 3957
Joined: Fri Nov 04, 2005 5:54 am
Model of CNC Machine: GCnC/WinCNC
Location: San Jose, California, USA
Contact:

Re: X axis stops

Post by Rcnewcomb »

Have you switched around the X and Y motors to see if the problem follows the motor?
- Randall Newcomb
10 fingers in, 10 fingers out
another good day in the shop

nywoodworker
Vectric Apprentice
Posts: 30
Joined: Sun Oct 28, 2012 8:01 pm
Model of CNC Machine: Industrial CNC Router Apprentice 404

Re: X axis stops

Post by nywoodworker »

Rcnewcomb wrote:Have you switched around the X and Y motors to see if the problem follows the motor?
No I have not. It's a good idea. If the motors are interchangeable I will try it. I think it is a hardware Problem. Not software. I did disconnected the x motor. The motor seemed to turn freely for awhile but then stopped. I was thinking maybe a bad wire. If I have time after coming back from the North Eastern Wood Working show I will switch the motors.
Dave

User avatar
Leo
Vectric Wizard
Posts: 3070
Joined: Sat Jul 14, 2007 3:02 am
Model of CNC Machine: 1300 x 1300 x 254 Chinese Made
Location: East Freetown, Ma.
Contact:

Re: X axis stops

Post by Leo »

Try swapping the X axis with the Y axis motor - if the problem goes away - it's the motor.


sounds like you have covered everything else
Imagine the Possibilities of a Creative mind

www.leosworkshop.com

nywoodworker
Vectric Apprentice
Posts: 30
Joined: Sun Oct 28, 2012 8:01 pm
Model of CNC Machine: Industrial CNC Router Apprentice 404

Re: X axis stops

Post by nywoodworker »

I am headed to a regional woodworking show today. Hopefully when I get back I can try switching the motors.
I will keep you posted. Thanks for the help.

User avatar
ChrisInEstes
Vectric Wizard
Posts: 835
Joined: Fri Jul 17, 2009 8:00 pm
Model of CNC Machine: Vytek 4' X 8' - Perske Spindle - Mach3
Location: Estes Park, Colorado, USA

Re: X axis stops

Post by ChrisInEstes »

Another thought... Take the motors clear out so they don't provide any resistance to the system, and see if your machine moves freely. If it does, then it's related to a motor, if it still binds, then you know it's not motor related.

Chris
Aspire 9.5 - FlexiEXPERT 11 - Vytek Rebel 4' x 8' - 5HP Perske Spindle

nywoodworker
Vectric Apprentice
Posts: 30
Joined: Sun Oct 28, 2012 8:01 pm
Model of CNC Machine: Industrial CNC Router Apprentice 404

Re: X axis stops

Post by nywoodworker »

Chris ,
I have pulled the motor before . everything appears to work fine. Nothing on the gantry seems to be binding.. Checked and re checked all gears and also re zeroed table and reset limits. The problem remains. Headed out to try switching x and y motors....
Dave

nywoodworker
Vectric Apprentice
Posts: 30
Joined: Sun Oct 28, 2012 8:01 pm
Model of CNC Machine: Industrial CNC Router Apprentice 404

Re: X axis stops

Post by nywoodworker »

OK
I just switched the motors and with the switch I still have the problem with the x movement.... I guess I will try running new wires..... Anyone have any other suggestions..

4DThinker
Vectric Wizard
Posts: 1389
Joined: Sun Sep 23, 2012 12:14 pm
Model of CNC Machine: CNC Shark Pro, Probotix Meteor 25" x 50"

Re: X axis stops

Post by 4DThinker »

If the problem is always on the X axis no matter which way you cable it then I suspect something on the feed (screw or rack) that binds when the nut or gear gets to that point. If the rack is screwed down then one of the screws may even be out of line with all the others and could cause the same results.

nywoodworker
Vectric Apprentice
Posts: 30
Joined: Sun Oct 28, 2012 8:01 pm
Model of CNC Machine: Industrial CNC Router Apprentice 404

Re: X axis stops

Post by nywoodworker »

Problem solved.. I switched the wire at the motor with the z axis. Using the z for x control. My x axis travels the entire distance. I did it 3 times in both directions. Now I need to replace the wire....
How nice it feels to have a problem solved. Thanks for the help...

Post Reply