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  • RNJFAB
  • RNJFAB
Today 10:57
Replied by RNJFAB on topic Homemade CNC Plasma - hypertherm, Mesa, gear drives, nema 34.

Homemade CNC Plasma - hypertherm, Mesa, gear drives, nema 34.

Category: Show Your Stuff

Always the 'joint 1 on limit switch error' or 'joint 0 on limit switch error'.
Mostly at pierce now, but has slowly been creeping in and would do it halfway through a cut. same error.
  • spumco
  • spumco
Today 10:38
Replied by spumco on topic Ethercat installation from repositories - how to step by step

Ethercat installation from repositories - how to step by step

Category: EtherCAT

Spumco, great work. If you have to manually start the service each time. sounds like you overlooked the udev rules in the first post, Sorry about the formatting errors but its an awful post to edit

sudo geany /etc/udev/rules.d/99-ethercat.rules
and the following code block.
 

Rod - I hadn't actually gotten to that section of the installation yet.  The first 'ethercat slaves' check is before the 99-ethercat.rules line.

I just stopped when I got the errors starting ethercat service for the first time.  Bulldozing ahead past errors has not served me well in the past, despite my habitual attempts.
 
  • rodw
  • rodw's Avatar
Today 09:56
Replied by rodw on topic Homemade CNC Plasma - hypertherm, Mesa, gear drives, nema 34.

Homemade CNC Plasma - hypertherm, Mesa, gear drives, nema 34.

Category: Show Your Stuff

OK, hold the EMI filter thought for now. When I had EMI issues, fitting one solved it.
Choose from here locally, but there are other IEC connectors with mains switch and fuse built in
www.jaycar.com.au/components-electromech...-emf-products/c/2GLC

But in your case what is odd is that its been trouble free for so long. When you say error, is it always a limit switch error or could it be the arcOK is failing?

 
  • RNJFAB
  • RNJFAB
Today 08:17
Replied by RNJFAB on topic Homemade CNC Plasma - hypertherm, Mesa, gear drives, nema 34.

Homemade CNC Plasma - hypertherm, Mesa, gear drives, nema 34.

Category: Show Your Stuff

Still using the hypertherm XP45. it's been on it the entire time.

no EMI filter yet.
  • rodw
  • rodw's Avatar
Today 05:33
Replied by rodw on topic Homemade CNC Plasma - hypertherm, Mesa, gear drives, nema 34.

Homemade CNC Plasma - hypertherm, Mesa, gear drives, nema 34.

Category: Show Your Stuff

What plasma cutter are you using these days?
Do you have an EMI filter on your mains inlet to the control box? Jaycar have them
 
  • RNJFAB
  • RNJFAB
Today 05:25
Replied by RNJFAB on topic Homemade CNC Plasma - hypertherm, Mesa, gear drives, nema 34.

Homemade CNC Plasma - hypertherm, Mesa, gear drives, nema 34.

Category: Show Your Stuff

Couldn't find any spots showing voltage.

Ran new earth wires everywhere, from the gantry, torch holder, x axis motor mount, y axis motor mounts, table, water table.

No change, still getting errors when the torch begins a pierce.
  • rodw
  • rodw's Avatar
Today 05:23
Replied by rodw on topic Ethercat installation from repositories - how to step by step

Ethercat installation from repositories - how to step by step

Category: EtherCAT

Spumco, great work. If you have to manually start the service each time. sounds like you overlooked the udev rules in the first post, Sorry about the formatting errors but its an awful post to edit

sudo geany /etc/udev/rules.d/99-ethercat.rules
and the following code block.
  • jazzkramer
  • jazzkramer
Today 04:24
Replied by jazzkramer on topic PM-940TV 7i96s spindle virtual potentiometer config help

PM-940TV 7i96s spindle virtual potentiometer config help

Category: Basic Configuration

Thanks PCW,
I will try this morning :)
  • PCW
  • PCW's Avatar
Today 04:19
Replied by PCW on topic PM-940TV 7i96s spindle virtual potentiometer config help

PM-940TV 7i96s spindle virtual potentiometer config help

Category: Basic Configuration

You could use the hal scale  component to subtract 50 from the commanded spindle speed,
something like:

loadrt scale
setp scale.0.gain 1
setp scale.0.offset -50
net spindle-vel-cmd-rpm => scale.0.in
net fixed-spindle-rpm scale.0.out  [HMOT](CARD0).pwmgen.00.value
addf scale.0 servo thread

 
  • spumco
  • spumco
Today 04:08
Replied by spumco on topic Ethercat installation from repositories - how to step by step

Ethercat installation from repositories - how to step by step

Category: EtherCAT

sudo apt update and upgrade seems to have fixed whatever was wrong.

after reboot:

mill@debian:~$ sudo systemctl start ethercat.service
[sudo] password for mill: 
mill@debian:~$ ethercat slaves
0  0:0  INIT  E  AS715N_sAxis_V0.10
1  0:1  INIT  E  AS715N_sAxis_V0.10
2  0:2  INIT  E  AS715N_sAxis_V0.10
3  0:3  INIT  E  AS715N_sAxis_V0.10

I think I'm in business.

Thanks a ton for the assistance.
  • spumco
  • spumco
Yesterday 03:53
Replied by spumco on topic Ethercat installation from repositories - how to step by step

Ethercat installation from repositories - how to step by step

Category: EtherCAT

That seems to have worked, sort of.

I got the following errors while pasting the commands:
Warning: Spoiler!


fix-broken install and dkms autoinstall seemed to have worked (no errors)

dkms status | grep ethercat reported "installed"

systemctl status ethercat.service:
Warning: Spoiler!


But final commands got an error:
mill@debian:~$ sudo chmod 666 /dev/EtherCAT0
chmod: cannot access '/dev/EtherCAT0': No such file or directory
mill@debian:~$ ethercat slaves
Failed to obtain number of masters: Failed to open master device /dev/EtherCAT0: No such file or directory


I wonder if the "dev" folder is for a RIP install?
  • jazzkramer
  • jazzkramer
Yesterday 03:50 - Today 04:10
Replied by jazzkramer on topic PM-940TV 7i96s spindle virtual potentiometer config help

PM-940TV 7i96s spindle virtual potentiometer config help

Category: Basic Configuration

Ok, Now it's working... I found a post here with this:

# ---PWM Generator signals/setup---

setp [HMOT](CARD0).pwmgen.00.output-type 1
setp [HMOT](CARD0).pwmgen.00.scale [SPINDLE_0]OUTPUT_SCALE
net spindle-vel-cmd-rpm => [HMOT](CARD0).pwmgen.00.value
net spindle-enable => [HMOT](CARD0).pwmgen.00.enable

it's working... I only have some "scale" problems...

the actual speed capabilities goes from 50 to 4000RPM.

BUT wihth S50M3 it goes to 104rpm... 
to get it to 50rpm I need to send S1M3.

testing I'm getting:
S1M3 => 50rpm
S3450 => 4000rpm

How can I set this to be:  
S50 => 50RPM
S4000 => 4000RPM
?

Thanks.

 
  • jazzkramer
  • jazzkramer
Yesterday 02:31 - Yesterday 02:40
PM-940TV 7i96s spindle virtual potentiometer config help was created by jazzkramer

PM-940TV 7i96s spindle virtual potentiometer config help

Category: Basic Configuration

Hi guys,
I searched/read about this topic but I did not get it to work (I did not understand the matter), so I'm asking here.

I have almost converted my first "big" mill (PM-940TV) to cnc, and I have now to configure to control the spindle speed.
I'm using a 7i96s that has three pins called spind+ cursor spind-
I've replaced the analog potentiometer in the mill head with wires going to these three 7i96s pins.
The mill board has 12V cursor and 0V on that potentiometer, So I've connected the 12V to spind+ the cursor to the cursor and the spind- to the 0V.
The spindle direction is working by two relays connected to two output from the mesa and they work ok.

BUT the speed is not working.

I'm using linuxcnc 2.9.8 adn QTDragon-hd.

Reading the linuxcnc docs I see there are different ways to control the spindle speed... but I did not understand which I should use with this virtual potentiometer...

Could some of you point me in the correct direction please?

At the moment when I switch the spindle on it stays at 50rpm (the minumum speed of my milling machine) even if I send a S1000M3 (see the 1000rpm on the display of qtdragon_hd but the actual spindle speed remains 50rpm).
Max speed of my mill should be 4000rpm

Thanks guys,
have a nice day,
Alberto.
 
  • grandixximo
  • grandixximo's Avatar
Yesterday 02:29 - Yesterday 02:50
Replied by grandixximo on topic Ethercat installation from repositories - how to step by step

Ethercat installation from repositories - how to step by step

Category: EtherCAT

try the commands below

sudo apt install autoconf automake libtool pkg-config linux-headers-$(uname -r)
sudo apt --fix-broken install      # clears half-configured linux-image/headers
sudo dkms autoinstall
dkms status | grep ethercat        # want "installed", not "added"
sudo modprobe ec_master
sudo systemctl start ethercat.service

This is mostly due to missing dependencies, I will add the additional dependencies to the package, should not happen next time.
  • RNJFAB
  • RNJFAB
Yesterday 23:46
Replied by RNJFAB on topic Homemade CNC Plasma - hypertherm, Mesa, gear drives, nema 34.

Homemade CNC Plasma - hypertherm, Mesa, gear drives, nema 34.

Category: Show Your Stuff

Thanks Tommy,

Never had the machine grounded. Mostly because all my machines previously have been moveable due to my small shed.
I have installed an earth rod now and connected it to the machine. No change. we did also have rain yesterday so the ground is very moist.

I'll go through and try and check for voltage shortly. Digital Voltage Meter set to 0-20V to see if i can get any readings.

Cheers
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