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  • rodw
  • rodw's Avatar
12 Dec 2024 01:10
Replied by rodw on topic Estop change position coordinate

Estop change position coordinate

Category: Basic Configuration

Stepper system

Take the time to home all on power up. A stepper system is normally limited to 200 discrete steps per rev.  Usually you uses microstepping and some drives (like the geckos) are hard coded to microstep.

When you power off the drives, they wil llikely jump to the nearest full step so you loose position anyway...
  • rodw
  • rodw's Avatar
12 Dec 2024 01:05
Replied by rodw on topic Rotary Selector Switches & Resistors

Rotary Selector Switches & Resistors

Category: General LinuxCNC Questions

Most things in LCNC are digital (on/off) inputs. Thats why we suggested you use a binary switch. Additionally, dealing with digital inputs with a MUX component uses less pins. eg MUX4 only needs 2 pins for 4 seperate states. Here is part of my build thread that deals with using binary switches and MUX4 for scale selection. The same process applies if using a MUX8 or larger
forum.linuxcnc.org/show-your-stuff/32029...build?start=20#85279
 
  • rodw
  • rodw's Avatar
12 Dec 2024 00:52
Replied by rodw on topic Issue with halcmd show pin not showing pins.

Issue with halcmd show pin not showing pins.

Category: EtherCAT

I have found you need to create a complete config before the pins are able to be displayed.
Keep going and hook up your drives and create a basic cia402 ? config using axis.
  • PCW
  • PCW's Avatar
12 Dec 2024 00:38
Replied by PCW on topic Teknic Clearpath SDSK wiring to 7i96s

Teknic Clearpath SDSK wiring to 7i96s

Category: General LinuxCNC Questions

1. If you are going to wire the step/dir inputs single ended, I would use a per drive GND for the
STEP- and DIR- pins. This is better electrically and allows you to swap drives easily if needed.

2. Since these are servo drives, I would make the enable controlled by a 7I96S output in turn
controlled by LinuxCNC, not permanently enabled as shown.

3. If you want to use the HLFB outputs in series I expect a higher than 5V supply would be needed
because of the per OPTO voltage drop. I would wire them in parallel instead (as long as they can
be programmed to indicate a fault by turning on) or use a 12/24V supply

4. The 7I96S input common needs to be connected to GND.
  • Zayoo
  • Zayoo
11 Dec 2024 23:31
Replied by Zayoo on topic LinuxCNC-RIO - RealtimeIO for LinuxCNC based on FPGA (ICE40 / ECP5)

LinuxCNC-RIO - RealtimeIO for LinuxCNC based on FPGA (ICE40 / ECP5)

Category: Computers and Hardware

I can confirm that generic_spi communicate with board.

@MirkoCNC
And not just headers, but also SPI lines. They should be as short as possible. I tested on my bord at 4Mhz no errors at 4.5Mhz wrong data and to many errors.
  • fully_defined
  • fully_defined's Avatar
11 Dec 2024 23:28 - 15 Dec 2024 02:08
Teknic Clearpath SDSK wiring to 7i96s was created by fully_defined

Teknic Clearpath SDSK wiring to 7i96s

Category: General LinuxCNC Questions

Edited 2024-12-14 to reflect what I think is correct, but I am currently still looking for confirmation. I want to refer to this post in the future.

I know this has been talked about in the past, but I could not find an example with the entire circuit in a single graphic like this. Executed in Goodnotes on iPad Pro M2 12.9".

The graphic below will reflect my current state of understanding of how to wire 4x Teknic Clearpath SDSK motors and 4x NPN-NC inductive proximity sensors to a Mesa 7i96s card for use in LinuxCNC. It will be updated as my understanding of the circuit evolves and improves, and contributors correct me.

File Attachment:


With daisy-chained HLFB:

File Attachment:
  • gbestwick
  • gbestwick
11 Dec 2024 22:53 - 11 Dec 2024 22:55
Issue with halcmd show pin not showing pins. was created by gbestwick

Issue with halcmd show pin not showing pins.

Category: EtherCAT

Hello everyone,
First, thank you to everyone who has been working hard on this aspect of LinuxCNC. Your work is greatly appreciated.

So, I have purchase a 16 in -16 out IO module to play with.

I have successfully got etherlab/ethercat installed. The service runs and when I run ethercat slaves I get:

0  0:0  PREOP  +  SG-ELC-ADIO-DI16-DO16-NPN(Digital 16-Input/16-Output)

When I run ethercat xml I get:
[code]
<?xml version="1.0" ?>
<EtherCATInfo>
  <!-- Slave 0 -->
  <Vendor>
    <Id>3992977410</Id>
  </Vendor>
  <Descriptions>
    <Devices>
      <Device>
        <Type ProductCode="#x00010204" RevisionNo="#x00000001">SG-ELC-ADIO-DI16-DO16-NPN(Digital 16-Input/16-Output)</Type>
        <Name><![CDATA[SG-ELC-ADIO-DI16-DO16-NPN(Digital 16-Input/16-Output)]]></Name>
        <Sm Enable="9" StartAddress="#xf02" ControlByte="#x44" DefaultSize="0" />
        <Sm Enable="9" StartAddress="#xf03" ControlByte="#x44" DefaultSize="0" />
        <Sm Enable="1" StartAddress="#x1000" ControlByte="#x0" DefaultSize="0" />
        <RxPdo Sm="0" Fixed="1" Mandatory="1">
          <Index>#x1a00</Index>
          <Name>Output Group 0</Name>
          <Entry>
            <Index>#x3101</Index>
            <SubIndex>1</SubIndex>
            <BitLen>8</BitLen>
            <Name>Output[00..07]</Name>
            <DataType>UINT8</DataType>
          </Entry>
        </RxPdo>
        <RxPdo Sm="1" Fixed="1" Mandatory="1">
          <Index>#x1a01</Index>
          <Name>Output Group 1</Name>
          <Entry>
            <Index>#x3101</Index>
            <SubIndex>2</SubIndex>
            <BitLen>8</BitLen>
            <Name>Output[08..15]</Name>
            <DataType>UINT8</DataType>
          </Entry>
        </RxPdo>
        <TxPdo Sm="2" Fixed="1" Mandatory="1">
          <Index>#x1600</Index>
          <Name>Input Group 0</Name>
          <Entry>
            <Index>#x3001</Index>
            <SubIndex>1</SubIndex>
            <BitLen>8</BitLen>
            <Name>Input[00..07]</Name>
            <DataType>UINT8</DataType>
          </Entry>
        </TxPdo>
        <TxPdo Sm="2" Fixed="1" Mandatory="1">
          <Index>#x1601</Index>
          <Name>Input Group 1</Name>
          <Entry>
            <Index>#x3001</Index>
            <SubIndex>2</SubIndex>
            <BitLen>8</BitLen>
            <Name>Input[08..15]</Name>
            <DataType>UINT8</DataType>
          </Entry>
        </TxPdo>
      </Device>
    </Devices>
  </Descriptions>
</EtherCATInfo>
I have created an XML file called ethercat-conf.xml and this is the contents:
[code]<masters>
  <master idx="0" appTimePeriod="1000000" refClockSyncCycles="1">
    <!-- EtherCAT Slave -->
    <slave idx="0" type="generic" vid="0xee000002" pid="0x00010204" configPdos="true" name="D1">
      <dcConf assignActivate="300" sync0Cycle="1000000" sync0Shift="0"/>
      <!-- Sync Manager 0: Outputs Group 0 -->
      <syncManager idx="0" dir="out">
        <pdo idx="1a00">
          <pdoEntry idx="3101" subIdx="1" bitLen="8">
            <!-- Digital Outputs 1-8 -->
            <complexEntry bitLen="1" halPin="lcec.0.0.digout-01" halType="bit"/>
            <complexEntry bitLen="1" halPin="lcec.0.0.digout-02" halType="bit"/>
            <complexEntry bitLen="1" halPin="lcec.0.0.digout-03" halType="bit"/>
            <complexEntry bitLen="1" halPin="lcec.0.0.digout-04" halType="bit"/>
            <complexEntry bitLen="1" halPin="lcec.0.0.digout-05" halType="bit"/>
            <complexEntry bitLen="1" halPin="lcec.0.0.digout-06" halType="bit"/>
            <complexEntry bitLen="1" halPin="lcec.0.0.digout-07" halType="bit"/>
            <complexEntry bitLen="1" halPin="lcec.0.0.digout-08" halType="bit"/>
          </pdoEntry>
        </pdo>
      </syncManager>

      <!-- Sync Manager 1: Outputs Group 1 -->
      <syncManager idx="1" dir="out">
        <pdo idx="1a01">
          <pdoEntry idx="3101" subIdx="2" bitLen="8">
            <!-- Digital Outputs 9-16 -->
            <complexEntry bitLen="1" halPin="lcec.0.0.digout-09" halType="bit"/>
            <complexEntry bitLen="1" halPin="lcec.0.0.digout-10" halType="bit"/>
            <complexEntry bitLen="1" halPin="lcec.0.0.digout-11" halType="bit"/>
            <complexEntry bitLen="1" halPin="lcec.0.0.digout-12" halType="bit"/>
            <complexEntry bitLen="1" halPin="lcec.0.0.digout-13" halType="bit"/>
            <complexEntry bitLen="1" halPin="lcec.0.0.digout-14" halType="bit"/>
            <complexEntry bitLen="1" halPin="lcec.0.0.digout-15" halType="bit"/>
            <complexEntry bitLen="1" halPin="lcec.0.0.digout-16" halType="bit"/>
          </pdoEntry>
        </pdo>
      </syncManager>

      <!-- Sync Manager 2: Inputs Group 0 -->
      <syncManager idx="2" dir="in">
        <pdo idx="1600">
          <pdoEntry idx="3001" subIdx="1" bitLen="8">
            <!-- Digital Inputs 1-8 -->
            <complexEntry bitLen="1" halPin="lcec.0.0.digin-01" halType="bit"/>
            <complexEntry bitLen="1" halPin="lcec.0.0.digin-02" halType="bit"/>
            <complexEntry bitLen="1" halPin="lcec.0.0.digin-03" halType="bit"/>
            <complexEntry bitLen="1" halPin="lcec.0.0.digin-04" halType="bit"/>
            <complexEntry bitLen="1" halPin="lcec.0.0.digin-05" halType="bit"/>
            <complexEntry bitLen="1" halPin="lcec.0.0.digin-06" halType="bit"/>
            <complexEntry bitLen="1" halPin="lcec.0.0.digin-07" halType="bit"/>
            <complexEntry bitLen="1" halPin="lcec.0.0.digin-08" halType="bit"/>
          </pdoEntry>
        </pdo>
        <pdo idx="1601">
          <pdoEntry idx="3001" subIdx="2" bitLen="8">
            <!-- Digital Inputs 9-16 -->
            <complexEntry bitLen="1" halPin="lcec.0.0.digin-09" halType="bit"/>
            <complexEntry bitLen="1" halPin="lcec.0.0.digin-10" halType="bit"/>
            <complexEntry bitLen="1" halPin="lcec.0.0.digin-11" halType="bit"/>
            <complexEntry bitLen="1" halPin="lcec.0.0.digin-12" halType="bit"/>
            <complexEntry bitLen="1" halPin="lcec.0.0.digin-13" halType="bit"/>
            <complexEntry bitLen="1" halPin="lcec.0.0.digin-14" halType="bit"/>
            <complexEntry bitLen="1" halPin="lcec.0.0.digin-15" halType="bit"/>
            <complexEntry bitLen="1" halPin="lcec.0.0.digin-16" halType="bit"/>
          </pdoEntry>
        </pdo>
      </syncManager>
    </slave>
  </master>
</masters>


I run the command:

halcmd loadusr -W lcec_conf ethercat-config.xml

halcmd show pin lcec



I get:


Component Pins:
Owner   Type  Dir         Value  Name
     4  u32   OUT    0x00000001  lcec.conf.master-count
     4  u32   OUT    0x00000001  lcec.conf.slave-count


I feel like there should be a whole host of pins listed at this point. Can anyone please assist me? Mr. GPT hasn't got me anywhere.
[/code][/code]			

		

	





	

		
    
			
  • 
				Masterdrive
			
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  • Masterdrive
    • 
		

	


	

		
			 11 Dec 2024 21:41					
		

			

				Replied by Masterdrive on topic Remora - ethernet NVEM / EC300 / EC500 cnc board			

			

				Remora - ethernet NVEM / EC300 / EC500 cnc board			


			

				Category: Computers and Hardware			


			

				


	

Hi, there is no cpp source code for the NVMPG. I decompiled the extracted firmware and managed to find the serial transmission section. The communication protocol was derived from that. The attached spreadsheet simulates the protocol. You should be able to use that for your purpose or alternatively look at the code of the NVMPG LinuxCNC component.



github.com/scottalford75/Remora-NVEM/blo.../MPG%20protocol.xlsx


Hi Scott,

thanks for your time and dedication.

I've owned a NVEM 2 since 2018, but buried it long time ago since I was not able to make it work reliably.


	www.cnczone.com/forums/controller-cards/...084.html#post2154084


At that point in time, and till now, I've been using Mach3 (yeah... no LinuxCNC... i know...)



2019, after migrating to an UC300ETH controller, I tried to make the MPG work with Mach3 without using the NVEM.

I didn't want to waste such a nice MPG.

At that time, I did some reverse engineering... not as professional as you did... mine was mostly trial and error and listening to the serial communication between the MPG and the NVEM after opening it and finding a MAX232. I captured hundreds of packages, and tried to find the similarities on what was displayed on the MPG and what was within the payload. I almost got the payload down to your level.

I was too dumb to know about headers and such -_-



I also tried to create an Arduino program for having the MPG communicate with a PC using MODBUS.

But again, I was too dumb to find a smart solution, like having the Button-presses being reflected as Output-Pin changes on the Arduino, and hook those up to my motion-controller. Or using the Arduino Pro-Micro as a HID. Instead I tried to make the communication work with MODBUS and Mach3 "Brain", which resulted in a complex, and unreliable solution.

So I buried that solution almost 4 years ago as well.



That being said... I'm surprised about the NVEM still being a topic after stumbling about this thread by accident.

Would you mind if I would revive my idea of a NVMPG to PC connection, utilizing some of the "wisdom" you've gathered throughout the years?

Don't get me wrong... I'm an "enthusiast", far away from being an "achiever", my programming days are more than 20 years in the past now... but it's been bugging me a lot looking at this "unfinished project" (a lot of them exist though -_-)



Kind regards,

David			

		

	





	

		
    
			
  • 
				gardenweazel
			
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			 11 Dec 2024 21:27					
		

			

				Replied by gardenweazel on topic Qtdragon for lathe??			

			

				Qtdragon for lathe??			


			

				Category: Qtvcp			


			

				Got it. No problems.



Ahhh, I misunderstood.



"scroll the gcode, mdi or graphics view" now understood.



Thanks			

		

	





	

		
    
			
  • 
				partec
			
    • 
			
  • partec
    • 
		

	


	

		
			 11 Dec 2024 21:27					
		

			

				cam_align was created by partec			

			

				cam_align			


			

				Category: Qtvcp			


			

				Chris, a little something here, regarding the variation of the circle diameter



mouse scroll only - scroll circle diameter 



may now work a little slower than in previous versions



It would perhaps be practical if the currently set value according to the



middle mouse single click - cycle through rotation increments 



would also be used to adjust the diameter?			

		

	





	

		
    
			
  • 
				gardenweazel
			
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			 11 Dec 2024 21:23					
		

			

				Replied by gardenweazel on topic Inconsistent values from Versaprobe			

			

				Inconsistent values from Versaprobe			


			

				Category: Qtvcp			


			

				Chris,

I'm not sure that the calculation is is correct. I see the tool table file being written to but, the offset is incorrect.



For example, take this line:

T42  P42  D+12.700000 Z+290.403761 ;SpeTool Spiral .5" Shank .5" Dia 2" CL



I first zero'ed the above line, measured spindle with 3d probe. Then the "Z" probe fails multiple times before the gcode starts correctly. The above line was after the multiple probes and the gcode started running.

My "Z" can only travel somewhere around 120mm based on it's current configuration.



Here's another tool table entry:

T28  P28  D+3.175000 Z+12.349993 ;Whiteside 1/8" RD1600

This is what I would expect to see(Z+12.349993).

However I probed multiple times on that one also.



I did look at the code and there is an os.fsync on line 335 of qt_tstat.py which is located in def _save()

There's also comments to this perhaps causing "odd errors".



I'm thinking that maybe the FLUSH before the FSYNC might be causing this?



 			

		

	





	

		
    
			
  • 
				cmorley
			
    • 
			
  • cmorley
    • 
		

	


	

		
			 11 Dec 2024 20:47					
		

			

				Replied by cmorley on topic Qtdragon for lathe??			

			

				Qtdragon for lathe??			


			

				Category: Qtvcp			


			

				All qtdragon versions have that button now. I'd you have an MPG you might like it to scroll the gcode, mdi or graphics view. There is no option to remove it currently.			

		

	





	

		
    
			
  • 
				schnellmued
			
    • 
			
  • schnellmued
    • 
		

	


	

		
			 11 Dec 2024 19:51					
		

			

				Replied by schnellmued on topic Remora - ethernet NVEM / EC300 / EC500 cnc board			

			

				Remora - ethernet NVEM / EC300 / EC500 cnc board			


			

				Category: Computers and Hardware			


			

				


	

Remora does not use the Base Thread.

Whether you run Remora or MESA the latency will be the same.

 


Hi Scott



Ok, then i have maybe some weird misconfiguration on my side. Today i switched the mill to a 7i96S today and the servo thread on the same laptop with same kernel params and network card is about 700k-750k instead 1,5m-6,0m with the remora config. Any idea what iam doing wrong ? Shall i upload my remora config ?



-

schnellmued			

		

	





	

		
    
			
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				fully_defined
			
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			 11 Dec 2024 18:10					
		

			

				Replied by fully_defined on topic Rotary Selector Switches & Resistors			

			

				Rotary Selector Switches & Resistors			


			

				Category: General LinuxCNC Questions			


			

				I just purchased 
	1N4148 diodes
, 
	0,1μF capacitors
, and 
	12-position switches
, to build some multiplexed rotary switches. I have no idea if this is going to work, but this is where I will start.



Unfortunately, the information needed to accomplish this is scattered all over the internet, with no solid how-to guide for LinuxCNC. If I am successful, and I have the patience, I may make such a thing when the time comes.



Once I have that part figured out, I will move on to rotary encoders for feed and speed overrides. And then after that, matrix keyboards. Hopefully the 7i73 has enough inputs for all of this, because I do not want any HMI inputs connected to the 7i96s board - only sensors.



I have also read about Arduinos being used for this kind of thing. I have an R4 Minima that is capable of emulating a keyboard through its type-c port, so I may use that for buttons. I don't know yet if that's a good idea or a bad idea.			

		

	




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