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  • PCW
  • PCW's Avatar
25 Mar 2025 15:11 - 25 Mar 2025 15:45

Mesa 7i95T config for workbench tests - to drive H-Bridges + PMDC servos

Category: Configuration Tools

The error is this line:

loadrt hm2_[MESA](BOARD) config=" num_encoders=3 num_pwmgens=3 num_stepgens=0"

Remove it and add the config stanzas to:

loadrt [HM2](DRIVER) board_ip=[HM2](ADDRESS) config="sserial_port_0=00000000 num_encoders=3 num_pwmgens=3"

The 7I95T uses the 7i95 name in hal files so 7i95 hal files will work with 7I95Ts without change.
 
  • tommylight
  • tommylight's Avatar
25 Mar 2025 14:54
Replied by tommylight on topic Problem with Limit switches

Problem with Limit switches

Category: General LinuxCNC Questions

Duplicate topic deleted.
-
See the 7i96S manual for inputs, the inputs are isolated from the rest of the board. 7i96S inputs can be used as "switched to ground" or "switched to VCC" so wire them accordingly.
And disconnect the switches from +-5V, normally home/limit switches are powered from VField and usually from 24V as it is better to protect from interference's, but they will also work with 5V.
  • tommylight
  • tommylight's Avatar
25 Mar 2025 14:46

Mesa 7i95T config for workbench tests - to drive H-Bridges + PMDC servos

Category: Configuration Tools

hm2_eth: discovered 7I95T
while
hm2_7i95: dlopen: /usr/lib/linuxcnc/modules/hm2_7i95.so: cannot open shared object file: No such file or directory
Not sure if the entries in the hal file should also be 7i95T, but it seems so, use the "search and replace" feature in the text editor with CTRL+h and replace every 7i95 with 7i95T, save and run again.
  • Evgen
  • Evgen
25 Mar 2025 14:46
Replied by Evgen on topic scurve trajectory planner

scurve trajectory planner

Category: General LinuxCNC Questions

Hello! I try P1. The movement becomes smoother, but still srange. And also srange deaccelerations in traditional tp at moment when movement is smooth and feedrate doesn't change. same programs an non linuxcnc machines works fine. I have such problem on much 3 many years ago. The reason was CPU usage.
  • tommylight
  • tommylight's Avatar
25 Mar 2025 14:39
Replied by tommylight on topic bandit controller retrofit

bandit controller retrofit

Category: General LinuxCNC Questions

Pictures of complete boards, and do motors have any labels?
If not, open one of the connectors and take pictures of the wires inside.
  • tommylight
  • tommylight's Avatar
25 Mar 2025 14:35
Replied by tommylight on topic Retrofitting a 1986 Maho MH400E

Retrofitting a 1986 Maho MH400E

Category: Milling Machines

I agree with RotarySMP, it is better to start a new topic.
  • tommylight
  • tommylight's Avatar
25 Mar 2025 14:33
Replied by tommylight on topic QTDragon_hd won't display a larger file.

QTDragon_hd won't display a larger file.

Category: Qtvcp

Is that an NVIDIA graphic card?
  • tommylight
  • tommylight's Avatar
25 Mar 2025 14:32
Replied by tommylight on topic How to build a CNC Router?

How to build a CNC Router?

Category: Milling Machines

What should the title be?
  • Boogie
  • Boogie
25 Mar 2025 13:20

Mesa 7i95T config for workbench tests - to drive H-Bridges + PMDC servos

Category: Configuration Tools

What makes me curious is mesaflash --device 7i95t --addr 10.10.10.10 --readhmid output, because i can't see TB5 inputs present in the list. Why is that?
  • Boogie
  • Boogie
25 Mar 2025 13:14

Mesa 7i95T config for workbench tests - to drive H-Bridges + PMDC servos

Category: Configuration Tools

My setup i pretty rude, as in photos. Currently no h-bridges connected (have no wires available...) but checking encoders and limit/home switches would be great for me. Actually, even starting without crash would be great:)
  • Boogie
  • Boogie
25 Mar 2025 13:03 - 25 Mar 2025 13:04

Mesa 7i95T config for workbench tests - to drive H-Bridges + PMDC servos

Category: Configuration Tools

Thank you for pointing things out.I did my best and studied the files. I wrote INI and HAL based on initial CT output and config from you Tommy.My linuxcnc is crashing with debug info:
hm2_7i95: dlopen: /usr/lib/linuxcnc/modules/hm2_7i95.so: cannot open shared object file: No such file or directory./main.hal:17: waitpid failed /usr/bin/rtapi_app hm2_7i95./main.hal:17: /usr/bin/rtapi_app exited without becoming ready./main.hal:17: insmod for hm2_7i95 failed, returned -15142Stopping realtime threadsUnloading hal componentsNote: Usid POSIX realtime
Attached HAL, INI and crash report. 
  • vibram
  • vibram
25 Mar 2025 11:51 - 25 Mar 2025 12:57
Replied by vibram on topic Spindle keep accelerating

Spindle keep accelerating

Category: Basic Configuration

Yes it's working good with these parameters.
I wanted a PID control for better results in threading.

I think you can close the topic. 
I used the calibration tool and everything seems smooth now... 
P=1 was a huge mistake, it's 0.02 now 
Thank you for your help PCW
  • pgf
  • pgf
25 Mar 2025 11:35

correspondence of unused i/o pins to physical connector location?

Category: PnCConf Wizard

Yup -- but I was asking about the TB1/TB2 pins. They're listed on the preceding pages, but only with their step/encoder/serial functions. Not as I/O pins.
  • RotarySMP
  • RotarySMP's Avatar
25 Mar 2025 11:17
Replied by RotarySMP on topic Retrofitting a 1986 Maho MH400E

Retrofitting a 1986 Maho MH400E

Category: Milling Machines

Guys, rather than burying all this good MAHO 700C retrofit information deep on page 173 of a thread on the MH400E, why not start a specific thread on the 700C so that people in the future looking for that information will have a chance of actually finding it.
  • Z3rni3
  • Z3rni3
25 Mar 2025 10:35
Problem with Limit switches was created by Z3rni3

Problem with Limit switches

Category: General LinuxCNC Questions

Hey,
i'm running LinuxCNC 2.9.4 on a Raspberry Pi 5 in combination with a Mesa Card 7i96S.

I seem to be doing something wrong with my limit switches.
When i manually trigger one Switch all LED's to the coresponding pins to the 4 Limit switches on the board turn on.
They are wired to the board as seen in the picture following
X = 0 / Y1 = 1 / Y2 = 2 / Z = 3
The VCC and Ground are wired in parallel to the 5V and Ground the Mesa card is connected to.

Any help would be appreciated. 
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