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  • bkt
  • bkt's Avatar
09 Sep 2024 18:51
Replied by bkt on topic LMDE6 or Mint 22 ??

LMDE6 or Mint 22 ??

Category: Installing LinuxCNC

No easy way to install LinuxCNC on Linux Mint 22, yet.

no easy way like first installation on mint19.2? Because was quite easy in my opinion .... easy not equal "write 2 row of command" .... in my case use 2 row of command give me more and more problem than use a long list of command where I can see what happens ....
  • bkt
  • bkt's Avatar
09 Sep 2024 18:49
Replied by bkt on topic LMDE6 or Mint 22 ??

LMDE6 or Mint 22 ??

Category: Installing LinuxCNC

If you are having trouble with the library you require why are you considering Lmde6 ?
 

.... I'm not a masochist .... but if mint22 doesn't have performance comparable to LMDE6 maybe it's better to try to make LMDE6 work, right?

Of course, it would be better to be less rigid and facilitate installations on Ubuntu.... but here I make the impression of Don Chishotte.
  • bkt
  • bkt's Avatar
09 Sep 2024 18:45 - 09 Sep 2024 18:52
Replied by bkt on topic LMDE6 or Mint 22 ??

LMDE6 or Mint 22 ??

Category: Installing LinuxCNC

... please tommylight ... cancel these post row....
  • machinedude
  • machinedude's Avatar
09 Sep 2024 18:28

What do you really get for a $350 desk top engraver ?

Category: Show Your Stuff

straight cutting in the X or Y direction seem fine, It is when i have both axis moving together doing a cut it shows up. direction seems to make no difference. i have not seen any kind of gouge marks. it like a very slight chatter. i have tried micro stepping from 4,000 to 12,000 and that made no noticeable changes to rule out resolution being an issue. it seems like osculation either mechanical from a belt flexing against the pinion i guess tuning on the feedback could look that way as well, DOC and speed seem to make no difference.it only shows up on radial cuts i have not seen any surface finish issues facing or on the floors of any cuts. i can go 1" deep and cut 1/16 with the side of a 5/16 3 flute at 30 to 40 IPM on my Y axis and things look great? Like i said it's just really odd and hard to pin point a cause.

the belts are a 3mm pitch arc tooth and i think it has a .907 pitch diameter and the OD is .872 (24 tooth)

same drives and i have not done anything with the settings internally. i do have the cables for that just never got the far into the tuning of the drive.

things are set in inches i LCNC

i'm not losing steps the closed loop feedback to the drives seems to be doing what it should be doing for that part of it. i have the drives dealing with everything too on that end.
  • spumco
  • spumco
09 Sep 2024 18:21
Replied by spumco on topic Probe Basic subroutine parameter - #5210?

Probe Basic subroutine parameter - #5210?

Category: QtPyVCP

I certainly hope there is no such wording in any of the documentation.


I think it's not painfully obvious - at least to me.  The G-code Overview section:
[i]5210[/i] - 1 if "G52" or "G92" offset is currently applied, 0 otherwise.

I think it's possible to misinterpret that statement.

Not until you dig deeper in other sections of the manual is the behavior a bit more clear.  From G-code/Coordinates/G92 Persistence Caution (5.3):
...where 5210 is the [i]G92[/i] enable flag (1 for enabled, 0 for disabled)...

I think the solution is to remove the #5210 parameter, and add G92.2 to the very beginning of the toolchange sequence, and G92.3 to the very end.  That way any offsets used in a program are restored and not just erased after a tool change.
  • RDA
  • RDA
09 Sep 2024 18:19
Replied by RDA on topic New update on STMBL

New update on STMBL

Category: Driver Boards

Who knows if is possible to use these boards in a industry plant? Is possible to certify a machine using these boards? (CE for example here in Europe)
 

Most likely no, usually components that can also be used individually, need to be certified, especially electrical ones. So to certify a machine with drives an motors, they should also bear their own CE.
To certify the drives, you have pretty much 2 options.

1. You do it on your own.
This is quite a big task, the only "difficult" one will be the EMC stuff, you need a radio room, you can find example in some universities etc. and then you need to fix your mistakes. Don't worry there will be mistakes and shit to take care of.
The other stuff is more documentation stuff like, manuals (EU is a bitch as technically the CE requires manuals to be in the target country's language, so in most cases english is not enough), risk assessments etc. This takes a lot of time and a lot of effort.

2. You give the task to a company like Intertek, TUV...
I have always gone this route, expensive but then you get all CE, UL, CSA done at the same time and you are somewhat covered as someone else signs your work. Even in this case the EMC is always done before in another place. Some schools example rent those radio rooms out 10x cheaper what the time at intertek costs. So you try to do everything that you pass all the radiated and conducted emissions at the final test site. This will save you thousands.

3. Mix of the 2, you do it on your own and get someone to consult and help.
Probably cheaper than example the intertek route but a lot of work.

Some of the directives related to servos would be:
Machinery Directive
2006/42/EC
EMC Directive
2014/30/EU
Low Voltage Directive
2014/35/EU
Then most likely ROHS and REACH (but I think its hard to buy components now days that dont comply to both).

Then to find the subsections from those, I would ask someone that actually knows about this. Or see from any "major" brand like yaskawa, panasonic, mitsubishi, siemens... and just go with what they certify with (they will all have them on the manuals).
 
  • Carsten
  • Carsten
09 Sep 2024 18:05
Probe parameters was created by Carsten

Probe parameters

Category: Qtvcp

Hi,

regarding qtdragon_hd:
are the Touchoff Parameters in the Settings Tab redundant to the settings in basicprobe resp. versa_probe?
E.g.
basic_probe  "PROBE RAPID" and "PROBE SEARCH" sounds like settings "SEARCH VELOCITY" and "PROBE VELOCITY".

Kind regards
Carsten
  • bertoldo
  • bertoldo
09 Sep 2024 17:52

Notes from installation of ethercat on Raspberry Pi 4

Category: EtherCAT

There is a problem with this image! I've been at this for weeks
  • Todd Zuercher
  • Todd Zuercher's Avatar
09 Sep 2024 17:52
Replied by Todd Zuercher on topic Hybrid stepper motor

Hybrid stepper motor

Category: Driver Boards

What exactly are your symptoms you are having that suggest you you that you need a stronger stepper? Are you merely randomly loosing steps? Staling? At what speeds are you experiencing stalls? Are you sure you don't have a mechanical issue causing binding of the Z axis? Are you using suitable step rates and step timings? At what motor RPM is your maximum feed rate?

If your max feed rate is such that your motor must turn much more than about 1500RPM, then you are probably going to have to lower your max feed expectations.

If you are having trouble with stalling when the motor RPM is greater than 500RPM but is fine at low RPM then you might be able to get away with simply increasing your voltage supplied to your drives. (Assuming you can do so without exceeding drive's voltage limits.

If you are merely loosing random steps here and there, (usually resulting in the Z position slowly loosing height, the most likely culprit is poor step pulse timing (too short pulses) and or electrical communication issues between the control and drive (electrical noise).

If you are getting random stalling at any speed, and you are certain there isn't a mechanical issue causing binding, and slowing the acceleration and max velocity doesn't help. Then you are probably going to have to resort to replacing the motor with a more powerful one. This will almost certainly require replacing the stepper drive with a more powerful one as well. If either the existing drive or motor is undersized for the other, replacing the smaller of the two with one more appropriately sized for the other could be enough to increase your performance. But usually you will need to replace both to see any significant improvement, this may also require you to switch to a larger power-supply

If you are replacing drive and motor, switching to a closed loop stepper system would probably be beneficial and would require no change to the existing control system whether that would be Mach3, Linuxcnc, or something else. (It would still use the same step/dir signals your existing system does.) Provided you configure the new drives to use the same micro-step settings as the old one.
  • snowgoer540
  • snowgoer540's Avatar
09 Sep 2024 17:26 - 09 Sep 2024 17:29
Replied by snowgoer540 on topic Showstopper Plasma Cutter retrofit

Showstopper Plasma Cutter retrofit

Category: Show Your Stuff

So here are the remaining issues:
1. Torch Breakaway does not pause motion when triggered despite the plasmac.breakaway pin going true
2. recovery panel is never displayed. I thought it might be linked to not having a M52 P1 but that is not it
3. If paused, it cannot resume until Linuxcnc is restarted
4. Safe height is ignored. Rapid Traverses are at max height

Its a long time sice I have used qtplasmac but these do appear to be bugs to me.
Any help or ideas will be appreciated.
The config is in git here github.com/rodw-au/showstopper




2.9.3 isn't quite helpful because it's difficult to find the line in the sand and correlate it to a version of QtPlasmaC. Even if you used the buildbot, it's been down for months, so who knows where you stand version wise.

The repo is neat, but it would be more helpful if you could post a backup of the config that was created by QtPlasmaC. It contains a few more "extras" that may help us track down issues that aren't present in the config folder otherwise. First of which is the specific version. :)

At any rate, I did checkout and build 2.9, and I don't see issues 1-3. Grated, it would be the latest version of QtPlasmaC which is 2.9-238.315, and I also didn't simulate your config ... but from what I see here QtPlasmaC is working.

I don't see issue 4 either, even on the VM, I can see that it's obeying my safe height of 0.75". In the picture below, Max Height is obviously where the cut started from. Remember that safe height is measured from the top of the material up. linuxcnc.org/docs/devel/html/plasma/qtpl...plasma:initial-setup

 


Reading how much you like being on the "bleeding edge", I'm a drop curious why you didn't use the master branch? It does have a few more features that are not present in 2.9. It's also noteworthy to mention that at this point, 2.9 is considered "end of life" from a development standpoint (to include bug fixes).
  • jjdege
  • jjdege's Avatar
09 Sep 2024 17:22

Notes from installation of ethercat on Raspberry Pi 4

Category: EtherCAT

try mont the image... is wrong :(
 

It did the same to me, I think the SD is dead
  • bertoldo
  • bertoldo
09 Sep 2024 17:08
  • bertoldo
  • bertoldo
09 Sep 2024 17:03

Notes from installation of ethercat on Raspberry Pi 4

Category: EtherCAT

Good afternoon jjdege, it loads there... but try to open or mount this image on your computer and you will see that it says it is corrupted. This process with raspberry image loads on the card without errors but when executing it gives errors. There is a problem with this image.
  • jjdege
  • jjdege's Avatar
09 Sep 2024 16:52

Notes from installation of ethercat on Raspberry Pi 4

Category: EtherCAT

Thanks for the answer.
but the issue I see and that makes me suspicious is that I download the image on a PC with W10 and I can't open it. It says it's corrupted, I can't even open it.
 

Hi
I did a test:
I downloaded the image from here with W10
I opened it with Raspberry Image

 

it loads without problems
  • Aciera
  • Aciera's Avatar
09 Sep 2024 16:27 - 09 Sep 2024 16:58
Replied by Aciera on topic Probe Basic subroutine parameter - #5210?

Probe Basic subroutine parameter - #5210?

Category: QtPyVCP

If one interprets the explanation of #5210's function as being "disable G52 & G92 offsets", then it's perfectly appropriate to use it they way they did.


I certainly hope there is no such wording in any of the documentation.

[edit]
As an illustration here is what 'G92.2' does (setting #5210 happens in this line 'pars[5210] = 0.0;'):
 
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