Messages

1

General Mach Discussion / Re: X-Axis Motor Tuning help.

« on: February 08, 2015, 12:24:32 PM »

okay gang. I figured it out.  I chased all the lines down and was unable to to find anything with wiring. I then changed the tuning and port on the y axis and tried to run it in that position and still nothing. So I know i'm fine from the Geco drive back to the PC. I decided to pull the motor out and see if it was spinning okay.  it came out with a slight tug and I fond that it was spinning fine. I reinstalled it and the carriage was able to move freely. after about a minute of work it stopped working again.  ahhhh got it figured it out.  The junction from the motor was no longer gripping the shaft. tightened that badboy and I was able to run with NO issues. I'm back to the x-axis capable of "killing" me now...
some photos for your enjoyment:

2

General Mach Discussion / Re: X-Axis Motor Tuning help.

« on: February 04, 2015, 11:43:27 PM »

Br549 or anyone else. Wanted to see if you have any further comments. Still not working well.
  Cheers,
 Brad

3

General Mach Discussion / Re: X-Axis Motor Tuning help.

« on: January 17, 2015, 03:20:08 PM »

hey guys. Sorry for taking so long to reply. I've been under the weather forever and hadn't been down in the basement for a while.

Hood: I gave the a whirl and things are moving better I just feel like it could be a whole heck of a lot better

BR549 please see below:
Is  X the long axis or short axis on your machine ?  X is the long
Are you using metric or imperial values for setup ?  Metric
Do you have the specs on the motor you are using as to power requirements Volt, Amps ?  I have no idea. i've googled the heck out of this motor and couldn't find anything. I'm sure this is very important to solving this for me.
Do you have the Drives set to the proper AMPS for the motor ??  Unknow.  How do I check for this?
Do yo have a picture of your machine ?  see below







linear rail system. 

4

General Mach Discussion / X-Axis Motor Tuning help.

« on: January 02, 2015, 05:08:42 PM »

Hello all,  I really didn't want to start this one but i searched and tried solutions that others have suggested and none are working for me.  I think mine might be deeper.  I'll try my best with supplying info to you and will get you as much as I can.  (photos/videos too if needed) I'm really a new user to CNCs.

I have ZERO issues with my y and z axis on the motor tuning. they move super smooth. my x-axis seems to fail here and there and it's just killing my CNC production work when doing 3D work.

The motor is a IDC P33V-CO Part number is 801-307.  It is connected to a screw drive that is about 6' long.  my initial thought was it was binding because the the drive was not completely square. I've fixed that issue and I still see skipping (mainly only in 3D).  I would think this motor should be strong enough to kill me but I can stop the movement of the carriage with little effort with the current tuning. Is it getting to little of power? 

The drive I'm using is a Geckodrive G540

CNC table is ~7'x2.5'

X-axis settings:
Steps per: 78.80090284
velocity: 4000.2
acceleration: 900
step pulse: 1
Dir Pulse: 0

if you need more info and/or any suggestions please let me know.
 cheers.
~Brad

5

General Mach Discussion / Re: Y Axis Help

« on: September 28, 2013, 11:19:09 PM »

bad connection in plug. i soldered the connections again and everything is working great now...  at least is was an easy fix...

6

General Mach Discussion / Re: Y Axis Help

« on: September 28, 2013, 07:13:21 PM »

Sorry Z and Y are the same motor. X is different, its a big ball screw motor.
Gecko G540 driver.
Same PC
I checked voltage of of pin 4 and 5 for Y. Pin 5 had 0 and 5 with no issues.

I lowered the speed, V and Acceleration and it sounded really bad when in manual mode. Here are my settings:

X: Steps Per:2013 V:240 Accel:30.26 G: 0.078 step pulse 1 Dir Pulse: 0
y: Steps Per:10160 V:135 Accel:24 G: 0.063 step steppulse 1 Dir Pulse: 0
z: Steps Per:2013 V:50.934 Accel:18.89 G: 0.048 pulse 1 Dir Pulse: 0

Trouble shooting...
I switched X and Y ports going into the 540 and the problem stays with Y motor. X motor runs fine in the Y port when processing G-code Y motor plugged into the x port vibrates and doesn't move.

I dug deeper into the plug and the ground and red wire were not making the best connection so I fixed that, nothing changed.

round 2?

7

General Mach Discussion / Y Axis Help

« on: September 27, 2013, 11:16:21 PM »

I bought my CNC used and am VERY new to it.  He showed me how it works and it worked great for him...

I'm having different results.  here is what is happening.  when i move the y axis with Shift/arrows it moves smooth as butter. One thing that it sometimes does is when I press up it moves one direction then when i push down it still moves the same direction i have to press down again and it changes direction.   I'm sure this is something with my real issue.

my real issue is when I process a GCode (simple circle or square) the x and z moves great, Y sounds like its going to vibrate the machine apart.  doesn't move at all. 

I'm sure you are going to need more info so please let me know and I'll do my best to get the info for you.  Z and X axis is a Gecko stepper motor drive G723-400-4