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  • Lcvette
  • Lcvette's Avatar
18 Jan 2025 14:37

ProbeBasic and sidemount, retractable 3D Probe

Category: QtPyVCP

For now yes that is correct. we have a branch we are working on with a database type tool table which will allow for many more functional options and usable tool parameters to be stored and called upon during subroutines. one of those parameters will be tool storage so it knows which tools are storable in the atc and which are not etc. there will be some really awesome updates coming with the tool database updates.
  • tommylight
  • tommylight's Avatar
18 Jan 2025 14:34
Replied by tommylight on topic Age of the website and forum

Age of the website and forum

Category: Forum Questions

There are 3 active forums at the same time, and as far as i can tell, they are all replicated (meaning the content is copied from one to others automatically):
The one we are using
forum.linuxcnc.org
The one on the same server but in a different folder
www.forum.linuxcnc.org
And another one with no domain name, just the IP address with no secure connection active
162.243.45.186
That is also on the Digital Ocean servers
www.whois.com/whois/162.243.45.186
The first two are for sure on the same virtual servers, so updating one impacts the other, the third might or might not also be on the same virtual server, there is no way of knowing from my point of view.
  • User_paulvdh_42
  • User_paulvdh_42
18 Jan 2025 14:29
Replied by User_paulvdh_42 on topic FreeCAD 1.0 Who's using it?

FreeCAD 1.0 Who's using it?

Category: CAD CAM

I've been working with FreeCAD for quite a lot of years on hobby project, It's OK-ish, and even though you can do amazing thnigs with it, it's not my favourite program.

I used FreeCAD 1.0 for a quite elaborate self made drawong of a CNC milling machine I've been working on (of and on) for 4+ years now, and with all changes I make on the drawing it becomes slower. This is now to a point that it's starting to annoy while working on that drawing. Loading time of the drawing changed from around 30s in FreeCAD V0.22 (just a few months ago, nearly the same drawing) to over two minutes in FreeCAD V1.0. Apparently this has something to do with the way the topological naming thing was "fixed", but at the moment I'm regretting working on that drawing in V1.0. I'm thinking about reverting to a backup and redo the changes I made in an older 0.22.

I also have one very big drawing, which is 7 drawings of CNC machines imported in the same drawing to compare them, and even in FreeCAD 0.xx that drawing takes over 5 minutes just to load. That would go towards half an hour just to start FreeCAD if this trend continues. Go figure.

smc.collins:

I spent 20 minutes trying to sketch a simple part to revolve and gave up after the autoconstraint engine completely hosed up the sketch. They really really need to put work into the sketcher and the UIX

I find the sketcher in FreeCAD quite nice. Like everything in FreeCAD, things could be done quicker and with less mouse clicks, but overall the sketcher is quite functional. It is also easy to mess up in the sketcher. It took me quite a while to learn what sort of constructs to avoid in the sketcher. As a general rule, build up the sketch in small increments, and do not have to many unconstrained items. You can't expect to learn a tool such as FreeCAD's sketcher in 20 minutes.


 
  • Creative25
  • Creative25
18 Jan 2025 14:05
Replied by Creative25 on topic Building a chain driven Plasma table.

Building a chain driven Plasma table.

Category: General LinuxCNC Questions

I have been busy the last few days.



It looks like IRQ coalescing is disabled by default.

Just reinstalled ethtool.
No error message so far.

Just waiting to see if the error appears at random.
  • User_paulvdh_42
  • User_paulvdh_42
18 Jan 2025 14:03
Replied by User_paulvdh_42 on topic help to compensate for changes in the rack

help to compensate for changes in the rack

Category: Advanced Configuration

A few days ago I read in the manual this should be possible, You once do some measurements and create a table, and then you enter that table in LinuxCNC's setup. "lead screw compensation" (ball screw, or rack & pinion, or whatever is all the same for the software) is apparently a special case, you do not need customized kinematics because it's built into each axis.

I'm planning on experimenting with this. My idea is to add a glass scale temporarily along each of the ball spindles, and have a microcontroller measure the position at set intervals. Partly to check accuracy of cheap chinese spindles, and if LinuxCNC can add some correction, that's even better.

But I do wonder about your big deviantions. 2mm is a lot. I suspect your machine has mechanical issues.
  • JT
  • JT's Avatar
18 Jan 2025 13:06
Replied by JT on topic Age of the website and forum

Age of the website and forum

Category: Forum Questions

The current OS
root@forum:~# lsb_release -a
No LSB modules are available.
Distributor ID:    Ubuntu
Description:    Ubuntu 20.04.6 LTS
Release:    20.04
Codename:    focal

When I log in I see this message but I don't feel comfortable running that command.
New release '22.04.5 LTS' available.
Run 'do-release-upgrade' to upgrade to it.

JT
  • JT
  • JT's Avatar
18 Jan 2025 12:54
Replied by JT on topic Age of the website and forum

Age of the website and forum

Category: Forum Questions

This is the root directory listing
root@forum:~# ls
access.log          do-dns-mirror      make-plot               PHPMailer-5.2.14        update-plot
bin                 error.log          monitor-memory          plug_reCAPTCHA.rc1.zip  v5.2.14.zip
cb_recaptchav2.zip  expire-session.sh  pflogsumm-1.1.1         requests.gnuplot
count-requests      flo.sql            pflogsumm-1.1.1.tar.gz  SHOW
data                letsencrypt        PHPMailer               simp_le
  • User_paulvdh_42
  • User_paulvdh_42
18 Jan 2025 12:29
Replied by User_paulvdh_42 on topic Ballscrew articulation, has anybody had success?

Ballscrew articulation, has anybody had success?

Category: General LinuxCNC Questions

Normally you get better answers on a forum if you show you've put in some effort yourself, and then ask more specific questions.

You can start by reading about Kinematics in LinuxCNC

linuxcnc.org/docs/2.8/html/motion/kinematics.html

In short: You write your custom kinematics in C, and "halcompile" compiles it into something compatible with LinuxCNC.
  • phillc54
  • phillc54's Avatar
18 Jan 2025 11:59

Path display glitching - QTPlasmaC - v1.235.265 QtVCP LinuxCNC v2.9.0

Category: Plasmac

That version of QtPlasmaC is from Feb 2023 and is known to have issues, you should update to the latest version.
  • rodw
  • rodw's Avatar
18 Jan 2025 11:18

Path display glitching - QTPlasmaC - v1.235.265 QtVCP LinuxCNC v2.9.0

Category: Plasmac

At a crazy guess, your home switches are enabled by default. If that's the case, use the -not pins from your Mesa card.
Can't jog any joints while homing.
emc/task/taskintf.cc 976: Error on joint 0, command number 106
joint 3 on limit switch error

Consider running pnccconf again from scratch.
  • rodw
  • rodw's Avatar
18 Jan 2025 11:02
Replied by rodw on topic Age of the website and forum

Age of the website and forum

Category: Forum Questions

Here in lies a problem because I don't have access to the server for the forum so I can't ask them up change the PHP.

Edit: I can ssh into the forum as root and upgrade the OS and I do that when I think about it.

JT


If you can SSH in as root to upgrade the OS you should also have root access to the server.
Its so long since I played with Joomla but configuration.php in the website's root folder contains the Database name, user name and password which is all you really need to upgrade the instance.
Ref: www.joomlashack.com/blog/joomla/guided-t...nfigurationphp-file/

Whilst a Cpanel interface is nice for users, its not really necessary to host a web server (usually whats called a a LAMP stack) and Joomla. I managed my webserver for years without a cpanel

From memory, usually a new user is defined for the web site and there should be a WWW folder in that user's home folder. As root you could see this.

Just focus on the forum would be my advice.

  • TOLP2
  • TOLP2
18 Jan 2025 11:02

RPi + Sipeed Tang Nano 20 k: new breakout board for LitexCNC

Category: Driver Boards

With the 5A-75B and 5A-75E we have a low cost way of creating a driver board for Linux-CNC. Based on the work of Romanetz, the project  LiteX-CNC  was started, providing a easy customizable firmware and driver to use these boards. The down-side however is that these boards require some soldering work to be done to accept inputs; I've messed up some boards in the process....

Therefore, Litex-CNC is going to be expanded to accept more FPGA's, starting with the Sipeed Tang Nano 20k. Compared with the 5A-75B it has less outputs (28 compared to 48 for the 5A-75B), but this is still enough for a simple 3 axis machine. The big advantage is that no SMT soldering skills are required to get this board up and running.

File Attachment:


For the Raspberry-Pi I've designed a HAT, which provides:
  • 7 extended PMOD-connectors. Each connector has 4 GPIO, power rails (+5V, max 200 mA) and a buffered enable signal;
  • RS489 connector for communicating with for example a VFD;
  • communication between Raspberry PI and FPGA using SPI in bidirectional mode (3-wire) to save on pins;
  • conforms to the HAT+ specification , including a EEPROM with settings.
With the PMOD-connectors one can easily connect to break-out boards providing stepgen, GPIO (12V/24V inputs and outputs), differential encoders, etc. I'm also working to provide support for shifting data out (74HC595) and in (74HC165).

An estimation of the HAT will be around 7 Euro's, excluding the Tang Nano 20k. Inlcuding the FPGA, the price would be around the 40 Euro price point.
  • IB_CnC
  • IB_CnC
18 Jan 2025 10:59 - 18 Jan 2025 11:06

ProbeBasic and sidemount, retractable 3D Probe

Category: QtPyVCP

Great, got it to work, thanks a lot!

You are the creator of Probe Basic right?
I must say it's really impressive this user interface which you have created, on par or better than many OEM software I have seen.

I haven't made a tool changer carousel yet, but plan to make one with geneva wheel.

When I combine the side-probe with the carousel, if I understand correctly the sequence would be:
- Unload the currently mounted tool in the ATC-carousel tab
- Load the Probe via the Tool tab (only in gui)
- Probe the stock
- Unload probe in Tool tab
- Load tool with ATC-carousel tab or start program.
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