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Topics - CX15

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1
General Mach Discussion / GoTo Zero not working
« on: April 14, 2018, 05:35:03 AM »
Hi All.

My new machine is up and running, but there's a few niggles :-(

When I hit GOTO ZERO in Mach3 the steppers on X and Y scream and although there's some movement, the spindle does not move to the correct position.
Z-axis behaves correctly.

Motor tuning (as per manufacturer) as follows:

Steps per: 320
Velocity: 4000
Accel: 300
Step Pulse: 0
Dir Pulse: 0

If I jog the X/Y axis using computer arrow keys, the unit moves smoothly and without problems at 4000mm per minute.
When I use "Ref All Home" function, it also moves smoothly and without problems.

When I change the Velocity down to 1000 things get "slightly" better.
The unit does move back to zero position, but it does it in a pulsing movement in stead of a smooth movement.
But this does not really solve the problem, as everything is very slow like this.

With some experimenting I found some other interesting behaviour as well:

When I execute this command
 
Code: [Select]
G0 X0 Y0
Same problem: screaming steppers, pulsing movement.

But if I execute this:
Code: [Select]
M03 S15000
G0 X0 Y0

the machine works perfectly fine (smooth movement). I dont understand why turning the spindle on makes the G0 command work differently.


I'm new to Mach3 and GCode, so I have no idea if this is normal behaviour, the CNC machine or Mach3 being the problem.

Any insights will be greatly appreciated.

2
FAQs / Question re NcUsbPod.dll plugin file
« on: April 05, 2018, 03:07:45 PM »
Hi again all.

Next question in my new found CNC quest!

I bought a relatively vanilla flavour Chinese made 6040 machine.
Control box looks like this:



It has an USB controller connected to a Win7 32bit laptop.


PROBLEM:

After installing and configuring Mach3 software (as per manufacturer's instructions), I got this message in the final step of setup:

"Find no XHC NcUsbPod!"

This happens when hitting the E-Stop button in mach3. The message is shown in the STATUS field, like this:




STEPS TAKEN TO RESOLVE PROBLEM:

1. I contacted the supplier, but as expected, it would have been more helpful to contact The Pope in Rome!

2. I searched this forum for "ncusbpod" and read everything I could find.
This lead to a link posted by joeaverage that pointed me to a Chinese supplier website and there I found a different (and newer) version of the NcUsbPod.dll file.
(The website is here: http://www.cdxhctech.com/html/edownloads/220.html)

3. I replaced the old NcUsbPod.dll file with this newer one and voila! Message gone and machine seems to be working. (I only ran one test piece of Gcode, but it seems to function OK for now).

MORE INFO:

I have checked every single setting in Mach3 with the two different .dll files installed.
Everything is exactly the same except the following settings screen:

->Mach3 Main Menu    ->Config    ->Config Plugins    ->NcUsbPod-XHC-Mach3-USB-Motion-Card   ->Config

Here is a screenshot of that settings screen with the original .dll file installed:




And here is the same settings screen with the new .dll installed:



The old NcUsbPod.dll file is 268K big and dated 26 Jan 2015.
The newer one is 420k and dated 15 Jan 2018.

I have not (yet) opened the control box to see what exactly is in there. I guess I can if that info would help.

QUESTION TO THE GROUP:

Was this a good idea to simply replace that file? Can I break my motion controller by doing that?

Any input is greatly appreciated.
Thanks in advance!
Regards
Andre

3
General Mach Discussion / Ahoy there - I'm a pirate. Arrrrrr!!!
« on: April 04, 2018, 02:03:04 AM »
Hi Everyone.
New member here.

Just bought my first machine and I'm super excited to get into CNCing!!

I was warned not to, but I bought one of the infamous Chinese machines (I live there after all).
The machine is set up and running (not without a bit of struggle off course) but I have many many questions...

I'm steadily working my way through previous threads on here, because it seems that all the problems with Chinese products have been experienced countless times before.

First thing I want to clarify though is my Mach3 license.
I'm pretty sure I have a pirated copy - the well mentioned "MaoA˜A ¯Ðtonar"

My question is: how do I fix this?
When I buy a new license from the Mach3 website, will I get a Mach1Lic.dat file and then simply replace the existing one, or will it be a bit more complicated?

Many more questions to come, but I figure step one would be to pay my dues first  ;D

Regards
André

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