- April 10, 2017 at 12:42 pm #31205
I am connecting to this MKS SBASE board using a network cable from the computer to the MPCNC machine. It also does the same thing using the USB connection. I am able to manually move the motors with Repetier in the X, Y & Z. The problem comes in when I try to send a gcode file to it. It seems to start out ok, but then the Z motor seems to make a pulsing noise after it moves the Z-axis initially. Here is video I took showing that. You may have to turn your volume up near the end of the video to hear the noise. https://youtu.be/6k-c_yW2t18
Here is the simple gcode. It just draws a rectangle for the limits of the maze I am going to cut.
;Created by Estlcam version 10 build 10.021
;Machining time about 01:14:42 hours
G00 X0.0000 Y0.0000 Z0.0000
;No. 1: Engraving 1
G01 Z-1.0000 F6 S24000
G01 Y254.0000 F15
In Estlcam I used Marlin as the CNC program preset. I attached screen captures from the settings I used with Repetier-Host. I also tried using the Ping-Pong Communication method with the same result.
I am essentially using the config.txt file that Ryan created. I am not using limit switches for my testing to keep it simple.
Here are the only changes from Ryan’s file that I changed:
network.ip_gateway 192.168.1.1 # the gateway address (address of laptop network card)
Anyone have any ideas as to what I am doing wrong?
Attachments:April 10, 2017 at 3:23 pm #31212
With some further research, I came across this page.
I will try this tomorrow.April 11, 2017 at 12:39 pm #31229
That is interesting, I wish that page gave more detail what exactly changes.April 22, 2017 at 6:39 am #31967
I finally found my problem. It was in the Gcode I was sending. I was not paying attention to the Feed speed & had it way too slow. After sending this MKS SBASE board back, I bought the Ramps board from Ryan & had the exact same problem. So I restored my laptop from a previous image backup that I knew had all the settings in Repetier that worked. I still had the same problem, so I found a Gcode file I had created last year & that worked. I then looked at the difference in the files & then it finally popped out at me.
This is the line that was failing.
G01 Y254.0000 F15 ;Did not work. 15mm per minute was apparently too slow to calculate
G01 Y254.0000 F900 ;Should have been what I used
I was using mm/min when I should have been using 15mm/sec when creating that tool in EstlCam. I need to go back to the basic tutorial, so it sinks into my head this time. I did sure learn a lot from this mistake though. Now I know that when I hear those motors just pulsing with a noise & not moving, it must be too slow a motor movement.
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