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  • jtrantow
  • jtrantow
03 Feb 2025 23:01 - 03 Feb 2025 23:03
PWM with a 7i96 and 7i85 was created by jtrantow

PWM with a 7i96 and 7i85

Category: General LinuxCNC Questions

I'm running a 7i96 with a 7i85 for my lathe(steppers and linear encoders) using 7i96_7i85ssdid.bit I have been using LCNC pwmgen and I'd like to switch to the Mesa pwmgen before I spend time tuning the spindle VFD pid further. (I use the stepgen.00.index-enable pin for homing)

I loadrt [HM2](DRIVER) board_ip=[HM2](ADDRESS) config="num_encoders=3 num_pwmgens=1 num_stepgens=4 sserial_port_0=00xxxx" I'm using TB3 ENC 0, ENC 1, ENC2 on the 7i85 and TB1 STEP 0, STEP 1, STEP 2, STEP 3 on the 7i96.This all works with the LCNC pwmgen driving ssr.00.out-02.

I added the mesa pwmgen and I can run the mesa pwmgen in parallel but I can't find the pwmgen signal coming out the Mesa board. 
I was expecting to see the PWM output on the TB2 STEP4 (TB2-02, TP2-03) connector but I do not see a PWM gen signal? 

7i96_7i85ssdid.pin from readhmid reports there is a PWM module in the firmware (and I can see the pwmgen pins in HALMeter and HALShow) but I can't figure out the pwm signal connector?

LCNCpins.txt doesn't show the PWM assignment either?

LatheSpindle.hal has my relevant HAL connections.

Any help would be appreciated.
  • royka
  • royka
03 Feb 2025 22:50 - 03 Feb 2025 22:53

Installing NoMachine Remote Desktop - Package installer issues

Category: Computers and Hardware

It seems like you made a typo, try to go first to the directory:
cd ~/Downloads
and then enter:
sudo apt install ./nomachine and press TAB so it will complete it automatically to nomachine_8.16.1_1_amd64.deb and press enter

Or just open the folder in the window manager and dubbel click the file

I'm using Sunshine as host on the LinuxCNC PC and Moonlight-qt as client, this works pretty well.
github.com/LizardByte/Sunshine/releases
github.com/moonlight-stream/moonlight-qt/releases/tag/v6.1.0

On the Windows PC I use WinSCP to easily transfer files
  • Taelman
  • Taelman
03 Feb 2025 22:46
Replied by Taelman on topic spindle setup

spindle setup

Category: General LinuxCNC Questions

Thank you. I'm going to test that tomorrow.

And how can I operate the relays of the 5 Axis CNC Breakout Board.

Greetings Philip
  • notJamesLee
  • notJamesLee
03 Feb 2025 22:03

Installing NoMachine Remote Desktop - Package installer issues

Category: Computers and Hardware

they seem to think it could be an issue with the package installer on the machine itself. I tried to follow prompts to install the .deb on command line but didnt seem to have access to the directory.
james@CNCPC:~$ sudo dpkg -i /home/james/Downloads/nomachine_8.16.1_1_amd64.deb dpkg: error: cannot access archive ‘/home/james/Downloads/nomachine_8.16.1_1_amd64.deb’: No such file or directory

I'm definitely open to alternatives that will work. I just want to make sure that I wont run into the same issue when trying to install that one. Is there a any small thing i can download (minesweeper or snake maybe) that i make sure i can actually install things?
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