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  • langdons
  • langdons
09 Jun 2025 15:20 - 10 Jun 2025 14:40
Replied by langdons on topic Flyback diode mesa 7i95t

Flyback diode mesa 7i95t

Category: Driver Boards

Removed speculative reply, potentially useful though it may have been.
  • Aciera
  • Aciera's Avatar
09 Jun 2025 15:18
Replied by Aciera on topic Career in LinuxCNC/machine building

Career in LinuxCNC/machine building

Category: Off Topic and Test Posts

you might want to give an indication of where in the world you would be doing business.
  • jay
  • jay
09 Jun 2025 15:12 - 09 Jun 2025 15:14

Career in LinuxCNC/machine building

Category: Off Topic and Test Posts

Hello friends, I'm new to the group and want to thank you all for your work and for being a helpful, knowledgeable community.
  
I'm interested in what I'm learning and would like to know what career options use this knowledge.  I see some guys mentioning that they've built cnc machines for years - I find that intriguing.  

It sounds like they have their own business; if so, how can I learn about setting up such a business (costs to get started, market in my area, projected income, etc).  I'm considering an engineering or software development degree but this is a career path I'd be interested in following if it continues show good chances of success after careful research.  By "success", I do NOT mean that I require a wealthy income, but 50 hr work weeks for $40k/yr net as an established entrepeneur - that might not be the best success option for me.
Thank you for any insights  
  • pingtomi
  • pingtomi
09 Jun 2025 13:46

MESA 7i93 PWM question - motor rotation direction switch

Category: Advanced Configuration

yes, I meant pin numbers as they are shown in the I/O column, but you are right I had a mistake as I tried to configure pwm1, but I experienced the same behavior with pwm0 on i/o pins 7 and 9.
if I use multimeter I see between 2,5..4V signal on pin6 (depends on the value, of course) but nothing on pin8. (corresponding 50pin numbers are 13,17)
/enable signals work properly.
thx
  • tommylight
  • tommylight's Avatar
09 Jun 2025 13:35
Replied by tommylight on topic Board for reading 3 encoders

Board for reading 3 encoders

Category: Computers and Hardware

Mesa 7i95T or 7i97T would be all in one, but price might be on the high side for what you need.
You can safely use just a Mesa 7i92T, but must be careful with wiring as the pins are sensitive.
Having said that, i have Mesa 7i92 wired on several of my plasma machines, meaning very high interference environment, and the THCAD is wired with 5-7 meters if cable directly to Mesa 7i92 input, yet i never have issues, ever.
This does imply proper shielding and grounding is a must.
In your case just having good shielded cables and grounding the shield only on the Mesa side inside the box should be fine.
  • PCW
  • PCW's Avatar
09 Jun 2025 13:29

MESA 7i93 PWM question - motor rotation direction switch

Category: Advanced Configuration

Are you sure you have the pinout correct?

PWM 0 uses 50 pin connector pins 15,19,23
  • tommylight
  • tommylight's Avatar
09 Jun 2025 13:28
Replied by tommylight on topic I've got a problem

I've got a problem

Category: Off Topic and Test Posts

I'm with you, like most of us probably. People like that come and go.

My advice would be:
1. Don't get your blood pressure up, it's not worth it.
2. Only clarify wrong statements that are relevant to the question at hand.
3. Ignore the rest of the babble.

+1
  • esmurf
  • esmurf
09 Jun 2025 13:03
Replied by esmurf on topic qtdragon_hd: Cant set units to metric

qtdragon_hd: Cant set units to metric

Category: Qtvcp

Thanks for your help, that was the problem
  • cmorley
  • cmorley
09 Jun 2025 12:53
Replied by cmorley on topic qtdragon_hd: Cant set units to metric

qtdragon_hd: Cant set units to metric

Category: Qtvcp

Qtdragon changes displayed units based on g20/21 modes
  • deltafox24
  • deltafox24
09 Jun 2025 12:53
SANGE elec IO was created by deltafox24

SANGE elec IO

Category: EtherCAT

Hi everyone,
I bought this device: SG-ELC-ADIO-DI16-DO16-PNP.
I wrote a custom XML file for it, but for some reason, after I load it, there's a 90% chance that EtherCAT crashes with an error.
I suspect that it might be slowing down the entire system, or maybe I wrote the XML incorrectly.Here’s what I wrote:
 <slave idx="4" type="generic" vid="EE000002" pid="00010205" configPdos="true" >
            <dcConf assignActivate="0000" sync0Cycle="0" sync0Shift="0"/>
        
            <syncManager idx="0" dir="out">
                <pdo idx="1a00">
                    <pdoEntry idx="3101" subIdx="1" bitLen="8" halType="complex">
                        <complexEntry bitLen="1" halPin="out-00" halType="bit"/>
                        <complexEntry bitLen="1" halPin="out-01" halType="bit"/>
                        <complexEntry bitLen="1" halPin="out-02" halType="bit"/>
                        <complexEntry bitLen="1" halPin="out-03" halType="bit"/>
                        <complexEntry bitLen="1" halPin="out-04" halType="bit"/>
                        <complexEntry bitLen="1" halPin="out-05" halType="bit"/>
                        <complexEntry bitLen="1" halPin="out-06" halType="bit"/>
                        <complexEntry bitLen="1" halPin="out-07" halType="bit"/>
                    </pdoEntry>
                </pdo>
                <pdo idx="1a01">
                    <pdoEntry idx="3101" subIdx="2" bitLen="8" halType="complex">
                        <complexEntry bitLen="1" halPin="out-08" halType="bit"/>
                        <complexEntry bitLen="1" halPin="out-09" halType="bit"/>
                        <complexEntry bitLen="1" halPin="out-10" halType="bit"/>
                        <complexEntry bitLen="1" halPin="out-11" halType="bit"/>
                        <complexEntry bitLen="1" halPin="out-12" halType="bit"/>
                        <complexEntry bitLen="1" halPin="out-13" halType="bit"/>
                        <complexEntry bitLen="1" halPin="out-14" halType="bit"/>
                        <complexEntry bitLen="1" halPin="out-15" halType="bit"/>
                    </pdoEntry>
                </pdo>
            </syncManager>
        
            <syncManager idx="2" dir="in">
                <pdo idx="1600">
                    <pdoEntry idx="3001" subIdx="1" bitLen="8" halType="complex">
                        <complexEntry bitLen="1" halPin="in-00" halType="bit"/>
                        <complexEntry bitLen="1" halPin="in-01" halType="bit"/>
                        <complexEntry bitLen="1" halPin="in-02" halType="bit"/>
                        <complexEntry bitLen="1" halPin="in-03" halType="bit"/>
                        <complexEntry bitLen="1" halPin="in-04" halType="bit"/>
                        <complexEntry bitLen="1" halPin="in-05" halType="bit"/>
                        <complexEntry bitLen="1" halPin="in-06" halType="bit"/>
                        <complexEntry bitLen="1" halPin="in-07" halType="bit"/>
                    </pdoEntry>
                </pdo>
                <pdo idx="1601">
                    <pdoEntry idx="3001" subIdx="2" bitLen="8" halType="complex">
                        <complexEntry bitLen="1" halPin="in-08" halType="bit"/>
                        <complexEntry bitLen="1" halPin="in-09" halType="bit"/>
                        <complexEntry bitLen="1" halPin="in-10" halType="bit"/>
                        <complexEntry bitLen="1" halPin="in-11" halType="bit"/>
                        <complexEntry bitLen="1" halPin="in-12" halType="bit"/>
                        <complexEntry bitLen="1" halPin="in-13" halType="bit"/>
                        <complexEntry bitLen="1" halPin="in-14" halType="bit"/>
                        <complexEntry bitLen="1" halPin="in-15" halType="bit"/>
                    </pdoEntry>
                </pdo>
            </syncManager>
        </slave>

And I’m also attaching the original XML file.
  • esmurf
  • esmurf
09 Jun 2025 12:36
Replied by esmurf on topic weird behavior: homing X messes up Y

weird behavior: homing X messes up Y

Category: EtherCAT

as per manual there is only one variable receive and one variable transmit PDO : 0x1600 and 0x1A00.
Each is limited to 10 entries.
You should see some error messages in /var/log/messages.
If you need more than 10 entries, you can use SDO instead of the 0x1600 PDO.
SDOs can be queried/set with "ethercat upload" or "ethercat download".
SDOs are permanently saved to the servo controller, so this is useful for nonchanging config parameters only.
  • esmurf
  • esmurf
09 Jun 2025 12:19

qtdragon_hd: Cant set units to metric

Category: Qtvcp

Hi,

i try to get qtdragon_hd in metric mode.
in my .ini file i have: 
[TRAJ]
LINEAR_UNITS = metric

Debug output has the line
QTvcp.QTVCP.QT_ISTAT - DEBUG - Machine is METRIC based. unit Conversion constant=0.03937007874015748

Some of the menus have mm as units. 
However the main screen shows Units = IN. 

What is wrong with my config?
The qtdragon_hd sample configs with metric seem to work fine.
  • SwitchWitch
  • SwitchWitch
09 Jun 2025 12:05
Replied by SwitchWitch on topic xml and hal - I am lost

xml and hal - I am lost

Category: EtherCAT

Finally all my Motors are joggable. The key was this part of the hal-file where I had to add some entries:
addf lcec.read-all servo-thread
addf cia402.0.read-all servo-thread
addf cia402.1.read-all servo-thread
addf motion-command-handler servo-thread
addf motion-controller servo-thread
addf cia402.0.write-all servo-thread
addf cia402.1.write-all servo-thread
addf lcec.write-all servo-thread

The amp-error still pops up from time to time but this is something wich could be caused of the not yet tuned motors I think.
Thx a lot (!!!!) for all you help and hints!!
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