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  • tommylight
  • tommylight's Avatar
21 May 2025 07:27
Replied by tommylight on topic [SOLVED] MesaCT problems with 7i96 pwm spindle

[SOLVED] MesaCT problems with 7i96 pwm spindle

Category: Configuration Tools

Pictures of your VFD connectors?
Not from the net, last week i dealt with two of the same make and model VFD that are not the same in any way, nor are the electronics the same.
  • Aciera
  • Aciera's Avatar
21 May 2025 06:23
Replied by Aciera on topic Calling next subroutine messes up offsets

Calling next subroutine messes up offsets

Category: General LinuxCNC Questions

The 'F' word in the 'G0' line does indeed only apply to G1, G2, G3 moves. The F value is retained though and some of the first G1 moves in the subroutines are actually missing the F word which seems a bit odd but it works I guess.:
eg line N3620
N3570  (Engrave) 
N3571  O103 SUB
N3580  G0 X0 Y0 Z1.0 
N3590  G0 Z0.0
N3591  M01
N3600  G0 X-0.7617 Y-1.2343 
N3610  G0 Z0.8681 
N3620  G1 X-0.7617 Y-1.2343 Z-0.0500 
N3630  G1 X-0.7983 Y-1.2510 Z-0.0500 F70.0000 


G92 affects all coordinate systems, this can be handy but it can also be a bit confusing.
linuxcnc.org/docs/html/gcode/g-code.html#gcode:g92


The difficulty I am having is moving from the end of the 4th position of the first subroutine back to the start (first) position of the second subroutine (o103) and repositioning the Z axis.


The first round (o100) is done with 'G92 Z0.75' while the second (o103) is done with 'G92 Z0.0'. It seems that there is no tool-length offset used (ie no G43). I don't know what your tool change work flow is but this would require that the tools used have exactly the same length OR the G92 offset is used to compensate for different tool-length, which would be a somewhat odd way of doing things.
  • Murphy
  • Murphy
21 May 2025 06:12

Remora - ethernet NVEM / EC300 / EC500 cnc board

Category: Computers and Hardware

Sorry my mistake , I thought you where uploading the config file. I used windows through the command prompt and ran pyocd to upload mine .
  • farmer_mike
  • farmer_mike
21 May 2025 05:12
Replied by farmer_mike on topic Experimental XML config generator

Experimental XML config generator

Category: EtherCAT

Hi, the config generator looks like a helpful tool. I have one Rtelligent ECT60 stepper drive running and I now need to figure out how to add two Rtelligent RS750E AC servo drives.

I apologize for asking such a simple question, but I am not sure how to run the lcec-configgen. Maybe I don't have it installed. I am clearly inexperienced, so I could be missing something simple.

I appreciate everyone's help on the forum.

I've attached a picture of my terminal and my version of Ethercat. My linuxCNC version is 2.9.2 

  • Thayloreing
  • Thayloreing
21 May 2025 03:37 - 21 May 2025 03:38
Replied by Thayloreing on topic Remora - ethernet NVEM / EC300 / EC500 cnc board

Remora - ethernet NVEM / EC300 / EC500 cnc board

Category: Computers and Hardware

@Murphy I'm not sure if I understood, when you ping to change, are you talking about Ethernet communication? If so, what is the relationship between being able to upload Remora to the cloud? Sorry for my lack of understanding, I'm just trying to understand, because Ethernet communication is one communication, and CMSIS DAP via USB is not another? Or do I have to configure an address for the USB CMSIS DAP
  • pgf
  • pgf
21 May 2025 03:03
Replied by pgf on topic Flex GUI 1.2.1 Released

Flex GUI 1.2.1 Released

Category: Other User Interfaces

Excellent! I just got my new mill converted to LinuxCNC, and was thinking that maybe I should tackle the gui before going too much further. Did a search to see how you were doing, and look! A new release. :-) I like the idea of starting with an axis-style gui -- after all, it's what I'm used to.

Looking forward to giving it a try!
  • oddwick
  • oddwick's Avatar
21 May 2025 03:00

[SOLVED] MesaCT problems with 7i96 pwm spindle

Category: Configuration Tools

ok so i for the most part got it working now, thanks jt pete and tom for the help! basically if i run the pwm module at 14v i get close enough to 5-10v to give me 12-24k rpm.
the last thing i just need to figure out is how to get the spindle to actually start. been trying to decipher a chinglish manual all afternoon to program this vfd. to be fair tho, it is actually better translated than the other ones ive dealt with. i can set the working frequency from linuxcnc but cant actually get it to start remotely. if anybody has any experience with a huanyang fc01, any help would be greatly appreciated!
  • cmorley
  • cmorley
21 May 2025 02:14
Replied by cmorley on topic Retrieving parameters values

Retrieving parameters values

Category: Qtvcp

I'm assuming this is just test code, as you could just set the paramEdit directly (based on the code you showed)

Typically I would use a callback (changed signal) from the lcdnumber or better yet a plain HAL pin to update paramEdit_MG_D.

while not STATUS.is_interp_idle(): might be better to try :
STATUS.cmd.wait_complete()

As an alternative you could use the HAL module to read the pins directly:
value = hal.get_value("motion.analog-out-05")
  • jonsar
  • jonsar
21 May 2025 01:02
The numpty needs help was created by jonsar

The numpty needs help

Category: Basic Configuration

Hi All
i am starting to pull what little hair i have left out and i need some help
il start from the beginning , I have a hobby cnc it runs Ubuntu 10.04 and it runs ok but it is a pox 14 years old 
I would like to update to Debian 12  . I have set up a hard drive with this and have Been setting up the stepconf files.
i know there has been a lot of changes in 14years , I am struggling with the pin conf .i have the old files and have been working them across to the new but the estop is causing me grief is there any body that knows how the 2 systems are different . I dont mean in a big sense what i mean is in he stepconf system so i can see where i am going long thanks
  • foxlabs
  • foxlabs
21 May 2025 00:24

GMOCCAPY 3.4.9 LCD7" can not display the whole GUI

Category: Gmoccapy

Hello Guys,
I use a 7"LCD resolution 1024x600 for display the GUI can not display all ,especilly the height ,does anyone met this problem ,how to solve this problem?Thank you !
  • Murphy
  • Murphy
20 May 2025 22:13 - 20 May 2025 22:16

Remora - ethernet NVEM / EC300 / EC500 cnc board

Category: Computers and Hardware

Absolutely but I'm away with work for the next 3 weeks so won't be home until then to test. I hooked a multimeter up the output pins of the EC500 and could see the drop in voltage. Only happens in CSS mode. If I manually change the speed outside of CSS it responds straight away . When looking at remora.sp in halscope the signal is square and reacts quickly. During CSS, remora.sp tapers up and down (with x axis movement which it should) During the taper the voltage drops to nearly zero resulting in the spindle nearly stopping. Once the signal levels out(no more taper of the signal) it goes to the required speed.
  • Routerworks
  • Routerworks
20 May 2025 22:11
Replied by Routerworks on topic Calling next subroutine messes up offsets

Calling next subroutine messes up offsets

Category: General LinuxCNC Questions

Also here is what Freecad puts before each axis call:

N15060 G0 X0 Y0 F70
N15061 M06 (Set too top of surface Z0.75)
N15062 G92 Z0.75 (Pocket surface top)

Don't understand the first line. F70 should only apply to G1?
Why the G92. This changes the origin position rather than just the offset from the present origin???
  • scotta
  • scotta's Avatar
20 May 2025 20:57

Remora - ethernet NVEM / EC300 / EC500 cnc board

Category: Computers and Hardware

Looking at the code for the hardware PWM, a few changes could be made to not stop the timer on a duty cycle change. A quick job for the weekend.

@Murphy, are you happy to test?
  • scotta
  • scotta's Avatar
20 May 2025 20:46

Remora - ethernet NVEM / EC300 / EC500 cnc board

Category: Computers and Hardware

@ Thayloreing Looks like you have no Comms with the board. Which could be why you can't upload the config to the board. Look back in the posts there is steps there to change the IP address for the board to 10.10.10.10.

@scotta, have you tested the v5 boards with CSS ?. I'm having issues only in CSS mode. Signal keeps dropping when there is speed changes during CSS. Voltage newly drops to zero, once speed changes stop it goes to the required speed. I'm thinking it could be the 0-10v chips on the EC500's.

Hi, no sorry have not tested CSS mode. The 0-10v chip is a PWM to analog chip and the Remora code uses the hardware quad timer. With CSS the spindle speed is constantly changing. In the code when the duty cycle changes, the timer is stopped to allow the timer configuration to be updated. This may take long enough for the PWM to analog chip to drop to 0v.

The software PWM module updates the duty cycle on the fly. Running the software PWM module in the base thread may get the PWM frequency in the right ball park.

In my testing of the spindle analogue, I must admit that I never put a scope on the output. Just a multi meter, and that would not have reacted quick enough to see the drop to 0v.
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