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  • rubinstu
  • rubinstu
01 Feb 2025 04:06

Cannot control spindle speed - HY VFD on RS-485

Category: Basic Configuration

I figured out the problem and I'll post it in case anyone else runs into something similar.

TL&DR: It was working all along, but the +/- increments were so small and that the set speed was always less than the minimum. If I clicked + enough times, I would eventually get it past the min and the spindle would speed up.

The longer version is that on a whim, I ran the default "LinuxCNC" carve program, and surprisingly, the speed ramped right up to 10000 RPM (not the minimum 6000). So, that told me that the speed was actually under CNC software control. The I enabled the spindle manually from the GUI and just kept clicking + until the spindle passed the min. The LED display on the VFD tracked the GUI as well.

So, a frustrating few nights of debugging, but I learned a lot about how this thing works under the hood!
  • cmorley
  • cmorley
01 Feb 2025 03:59
Replied by cmorley on topic QTDragon_hd prefs question

QTDragon_hd prefs question

Category: Qtvcp

maximuim travel in X and Y while probing before error.
maximuim travel in Z while probing before error.
  • spumco
  • spumco
01 Feb 2025 03:26
Replied by spumco on topic caxis.comp - How to freewheel axis/spindle?

caxis.comp - How to freewheel axis/spindle?

Category: HAL

No joy.

I can't unhome a joint via hal commands, or at least not how I've got it set up currently.

Attempted an M-code bash file with:
#! /bin/bash
#   C-AXIS FREEWHEEL ON

#SET MODE TO MANUAL
halcmd setp halui.mode.manual 1

#UNHOME JOINT AND RETURN PIN TO LOW STATE
halcmd setp halui.joint.2.unhome 1
sleep 1
halcmd setp halui.joint.2.unhome 0

#RESET ENCODER AND LATCH THE RESET WHILE FREEWHEEL ON
halcmd setp hm2_[MESA](BOARD).0.encoder.04.reset 1

#DISABLE SPINDLE MOTOR AMP
halcmd sets SPIN0-AMP-DISABLE 1

And am getting a "must be in joint mode or disabled to unhome" error.

Any idea how to disable or switch to joint mode for a single axis, either in HAL or with a bash file?
  • noqui
  • noqui
01 Feb 2025 03:25

Source code to send instructions to the joints through the parallel port

Category: General LinuxCNC Questions

Thanks a lot andypugh!! Great Help!!
I am trying to instead of manually type the instructions (Commands + units to move each one of the axis) or read them from a file, to automatically receive that data from an other application written in C. So i should add in the CNC panel a button to select or deselect "automatic data transmission (Commands + units) towards the axis, that should switch from receiving the data through the textbox "Enter the MDI Commands" to a kind of transmission connection that automatically would receive the data. It would be of great help to find out, where is the code for the function of the "Go" button.
Thanks a lot for the help.
  • CGT80
  • CGT80
01 Feb 2025 02:33

Best cam software to use for plasma cutting

Category: CAD CAM

I use sheetcam and the addons for CandCNC electronics and software. Sheetcam does have a tab feature and could be used to keep parts from tipping up. You can set how many tabs and what size to use, so a single tab that is small might do the trick, but I have not used it for that purpose. You could make a dxf of your slat table and have that as a locked layer in sheetcam, then move your part where needed. My slats are 4 feet long and are set with a bow of 2 inches in the center so I don't worry too much about where they land. Ramp and wiggle lead ins are also an option, but I don't know if that is stock sheetcam or part of any addons from CandCNC. Sheetcam does calculate cut time with the simulation and it used to have a report feature that would tell you how many inches of cut, how many pierces it had, and the time to cut.

Inkscape certainly isn't cad or cam software and I only use it when I need to do graphics type work vs. geometric lines that are easier on cad. For cad, I use siemens solid edge community edition which is a free version. Businesses with the commercial version can not open the files from the free version, but it is fine to save as a dxf and import into sheetcam or fusion 360.
  • my1987toyota
  • my1987toyota's Avatar
01 Feb 2025 02:04
Replied by my1987toyota on topic Fusion 360 Win 10 EOL

Fusion 360 Win 10 EOL

Category: CAD CAM

rodw Do you still use Fusion 360? If not what are you using now?
Yes, sneaky buggers charged my card on the renewal. Wasn't planning to.
I've only done one job in the last 12 months......
All my parts are sheetmetal and laser cut these days (or made in India or China), inserted about 300 nutserts today. Thank god I have a pneumatic tool!
 

Crap that suck. 300 inserts yikes, how long before your hands stopped vibrating?
  • my1987toyota
  • my1987toyota's Avatar
01 Feb 2025 01:54
Replied by my1987toyota on topic Brilliant Bambu Lab

Brilliant Bambu Lab

Category: Off Topic and Test Posts

So much for AI replacing everybody. I guess that would stand for Algorithm intelligence LOL
  • tommylight
  • tommylight's Avatar
01 Feb 2025 01:27

Linuxcnc & the Raspberry Pi (4 & 5) Official Images Only!!!

Category: Installing LinuxCNC

Should we nail it ...hmmm pin it ? :)
And adding the download link would be good.
Thank you.
  • behai
  • behai
01 Feb 2025 01:24

HAL Oscilloscope application has no Chan Off button...

Category: LinuxCNC Documents

The documentation is outdated, try clicking on the colored channel buttons on the bottom of the screen to toggle channels on/off. Eg the red button with '1' on it.


Hi Aciera, thank you. I have just now re-run it. It works as you have indicated. Best regards.
  • tommylight
  • tommylight's Avatar
01 Feb 2025 01:23
Replied by tommylight on topic Brilliant Bambu Lab

Brilliant Bambu Lab

Category: Off Topic and Test Posts

Oh you found that....
Been editing the damn thing since yesterday afternoon, copyright claims all over as i can not work without music.
I must say, it did a good job of removing music and leaving my voice and other sounds still audible. :)
But takes ages, currently the 4th is getting edited out, i have 5 or 6 more to go. :(
Still, it does play consistently despite editing in the background. At least something works properly on youtube, given that the algorithm is a total disaster, very iffy and extremely bad at figuring what to show me on "new to you", it has a 2 o 5% hit rate. No wonder tiktok is wiping the floor with them...
  • Cant do this anymore bye all
  • Cant do this anymore bye all's Avatar
01 Feb 2025 00:50 - 01 Feb 2025 04:59
Linuxcnc & the Raspberry Pi (4 & 5) Official Images Only!!! was created by Cant do this anymore bye all

Linuxcnc & the Raspberry Pi (4 & 5) Official Images Only!!!

Category: Installing LinuxCNC

First lets talk about the images.
1: They are based on Debian repos built by a collection of custom scripts.
2: Whilst some images have been written to SD card via RPi Imager Balena Etcher is recommended.
2a: If you use Linux there are plenty of other tools, Ubuntu\Mint has USB Image writer.
3: If you use the RPi Imager any adding of user or wifi info does not work. As the image is a custom one, only the kernel is built from RPi Sources.
4: If you are using an Rpi5 & a 7c80 0r 7c81 the driver to be loaded is hm2_spix
5: If you are using an RPi4 & a 7c80 or 7c81 the driver to be loaded is hm2_rpsipi
6: The images now have the SPI interface enabled by default.
7: Location of config.txt  /boot/broadcom/config.txt once again this is a custom build.
8: raspi-config is not in the image, the tool to use is menuconfig.
9: The default username is cnc.
10: The default password is cnc.
11: The images are not meant to be a fully fledged daily driver Operating System, the are just enough to run Linuxcnc.

Links to images:
www.linuxcnc.org/iso/rpi-5-debian-bookwo...25-01-27-0140.img.xz
www.linuxcnc.org/iso/rpi-5-debian-bookwo...7-0140.img.xz.sha256

www.linuxcnc.org/iso/rpi-4-debian-bookwo...23-11-17-1731.img.xz
www.linuxcnc.org/iso/rpi-4-debian-bookwo...7-0404.img.xz.sha256
  • Cant do this anymore bye all
  • Cant do this anymore bye all's Avatar
01 Feb 2025 00:27
Replied by Cant do this anymore bye all on topic Homing an axis moves away from home switch!

Homing an axis moves away from home switch!

Category: StepConf Wizard

Why don't you document what you did ?
  • cmorley
  • cmorley
31 Jan 2025 23:37
  • my1987toyota
  • my1987toyota's Avatar
31 Jan 2025 23:27
Replied by my1987toyota on topic Brilliant Bambu Lab

Brilliant Bambu Lab

Category: Off Topic and Test Posts

Thanks Tom I will give those video's a look after I finish watching you build your computer. LOL


 
  • PCW
  • PCW's Avatar
31 Jan 2025 23:07
Replied by PCW on topic Spindle Pulses Lost in System

Spindle Pulses Lost in System

Category: General LinuxCNC Questions

That fixes the display, but doesn't allow spindle synchronized motion.

The way to fix this is to set the encoder scale to -180
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