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As far as I know, the Scurve Trajectory Planner plans the tool's trajectory using jerk, acceleration, and speed, which works very well, but doesn't take the constraints of the individual axes into account.
For example, the trajectory speed is constant in a 90° corner, while the axis speeds change without considering constraints.
This can be seen in my previous post.
I hope I explained the connections correctly.

gruss
Rüdiger

tommylight wrote:

seuchato wrote:

I was looking for a way to control my vacuum table's vacuum pump from within axis.
To late, but:
Axis (and probably other GUI's) already have built in control for Mist and Flood so you could have just used those as that would also make it possible to use the M7/M8/M9 codes to control them directly, more info here
linuxcnc.org/docs/html/gcode/m-code.html#mcode:m7-m8-m9
For more outputs/stuff, you would have to go with what you did, and there are probably many ways of doing it, and you can use PyVCP panel to show info about it at all times:
linuxcnc.org/docs/html/gui/pyvcp.html
I use PyVCP panels a lot with Axis GUI, a lot, even for showing all Mesa IO and everything else, on industrial machines.
forum.linuxcnc.org/30-cnc-machines/31792...ofit?start=100#88523
See the right side, all is added as PyVCP panels.
P.S.
I was just searching for a retrofit i did to post the link here, bumped into my video from youtube posted by some russian company on rutube !!! And they wonder why the whole world hates them!
 

Tommy
you're never too late
I'll check on the possibilities to use Mist and Flood and M7/M8/M9 codes. Looks handy to me. Thanks for pointing this out, was not aware of this stuff.
Counts for PyVCP panel too. I had a camalign tab in axis up. Still there, but defunct now, as the camera got brocken in a stupid action by myself. I'll check out the sims, I think I remember having seen Mist and Flood buttons just below the spindle control buttons.  That's really where I'd love to have them, eventually with a status led on the vacuum clamping, too. I would prefer a tab thought for stuff to set up before a running job, as that leaves more screen for real time animation. Not sure how to kinda move a panel into a tab. Tried that with the manual tool change panel and failed.

Greez
chris
 

langdons wrote:

A parallel port has 12 output pins, that's a lot to work with.

But in case more than 12 outputs are needed, this method is great for non-latency-sensitive stuff.
 

I'll check on all available pins later today. Thx a ton for the hints. If I can do it over the parport, I 'd definetly be better off.
greez
chris

Thanks for your efforts, my card 7i85 will arrive tomorrow and I will then try everything out at my leisure.During an update, I encountered another problem with special comp files that no longer work with the new software.

I could totally do that (rounding errors on this machine are so far below its backlash) but then I have to go through all the axes and recalculate steps per unit distance and bleah.

Running metric gcode on an imperial machine will result in small rounding errors.

Perhaps you could make a new config that is metric?

Could work okay.

I tested the bitfile and it works for me on LinuxCNC 2.9.4 (all sserial ports on the 7I74 work)
(the 7I74 is on 6I25 P2 = HDR26)

Since it looks like you have and older installation, you may have been bitten by this bug:

github.com/LinuxCNC/linuxcnc/commit/24b9...d5ef156b4282f6191158

If so, you could update to something newer, or I could make firmware with no sserial on the 7I85
and on the 7I74 change the port to 0
 

Tommy, 
If your channels are all about machining, I would try to merge them together like I did. Or just focus on your best one.
I think most who do live streaming on youtube present a session and respond to the live chat comments at the end. They might also have a seperate subscription service for the live stream like Robert. www.youtube.com/@RobertGouveiaEsq
I follow this guy to watch what's happening in the US courts etc. He can be quite funny and makes reading boring court documents fun!
Another way might be use Patreon and Google Meet. A lot of paid channels are on Rumble but I don't go there.

3 channels to motivate you I found recently
NAZ, new guy not sure if he is monetised yet www.youtube.com/@newcreatorclub
Alexa. She is amazing and pulling $145k a year after just a few months www.youtube.com/@AlexaSaarenoja
And of course Rob from VidIQ  www.youtube.com/@vidIQ Man he is slick!

Sign up to VIDIQ but don't pay. eventually they will make a good offer. Mine is 40% off forever so $11 a month. As well as the tools on their web site, they insert themselves into the YT studio and list alternative topics etc. Very cool and helpful stuff.
​​​​​​​

Irrelevant, but i have a brother in NY, Zojz Visuals - 10 County Center rd White Plains NY 10607, and one in NJ.
As for payment, Andy once said and i agree with him completely, we need to think what to do with that money, so we do not have time for that. Or similar.
Having said that, it is really nice to compensate for help, makes life a bit more bearable.
Sorry for the rant, as i can not help much with EtherCAT, but i will help with anything else as much as humanly possible.

Rod, you have misquoted me.... see the end of your..hmmm..my quote.
Thank you for the info, and yes i am one of those creators, lousy one at that, but we only yap about stuff we know and have experience with.
I have 3 channels on youtube, well 4 but one is the old one with my full name and surname, and keeping them updated requires a lot of time that for now i have some, but convincing myself that stuff i do daily might be interesting to others might take a bit of time.
I have gathered cameras and mic's and stuff as i usually do hoarding everything, so i just need a kick in the behind, and a good one, to actually start doing something.
Please do comment/rant on this, i was thinking of doing live q&a on all 3 channels, about issues and machines and 3D printers and PC's, not "where are you from" and "how old are you" or "what is your shoe size"...
And the timing is a bit tricky as i am in Europe, so 10PM here is 4PM in US east side, so probably will have to do 12AM to 2AM here for 6PM to 8PM in US.

tommylight wrote:

The "content creator" profession has cr@pped out, as with everything humans do, millions of dumb f@ks yapping about stuff they have no clue.
Pity, as there are some magnificent creators on youtube, some have no clue ....
 

Hey, I'm one of them, I've been posting YT content for 15 years with no structure, no script and no idea. Despite these failings, a month ago, I looked at what I had been doing and I had 980 followers but only 500 hours watch time/365 days. You can monetise YT if you have 1000 followers and 4000 hours/365 days so I am on a mission to get to 4000 watch hours.

One thing I found was that I had content on a couple of channels because I started before Google linked YT to your Google account and uploading from a phone inherited my Google user if I wasn't careful. So I used yt_dlp to download some content from the wrong channel and moved it to where it could actually be part of my real channel! Then I found all these clips hiding on my video camera for a few years.

I use a tool called vidIQ and I asked it to give me a AI script for my latest video. It really was an amazing script but missed the real detail you can only get with hands on experience. By the time I added that, after producing 7 minutes of it, , I found I have enough content for two videos. 

VidIQ is an amazing tool and I've had it busy fine-tuning titles, creating thumbnails and back filling all the Tags and SEO stuff under my watchful eye.

It would be easy to bang out content from AI scripts en masse, but digging up the additional resources and filming extra stuff that's needed all takes time.... I reckon at least a 40 hour week per video.

Anyway, my 365 day watch hours have increased by 100 in just a fortnight just by adding some structure.... andhelp from AI.

Sometimes I tell small lies to my mother to avoid her scolding, and I think this might be one of those times.

I run a small research lab in New York, USA, making medical devices. Because these are small machines, I’ve been able to build good systems with Mach4 and ESS, and I’ve had some success in production.

Now I have a project that needs a 6-axis machine. Mach4 can do it, but because of the natural limits with TCP, I started researching and discovered LinuxCNC with EtherCAT. I had heard of it before, but AI really opened my eyes — I could get explanations and answers right away, which gave me confidence to try this system for my business.

The challenge is, the information is scattered, and it’s hard to find a paid consulting service that fits my needs. Forums have been helpful, but I still can’t put the last pieces together. I’m not sure if offering to pay for help here would go against the spirit of the community, so I want to be respectful.

My goal is to build a commercial-quality multi-axis CNC milling machine, and to create a library of tested INI, HAL, and XML files for different motors and drives. This would help me design small, medium, and large machines with proven, stable, and affordable hardware.

If it’s okay in this community, I’d be happy to pay for the right guidance. Could You help me bring this project to completion?

Great feedback.
I think on the dist-upgrade, the EC config is not copied to the new kernel. I seem to remember they said you need to install EC for every kernel you use,

The Ethercat key has always been there. But if Secure boot  is enabled in your BIOS, you need to do the MOK key thing but it is for authorizing the DKMS driver which is a kernel module they use in the install. This has been discussed in an issue I raised on their gitlab repo and they gave very helpful guidance which I added to my sticky.. gitlab.com/etherlab.org/ethercat

If possible disable secure boot but if you have a dual boot with Windows and an encrypted drive you have to retain it or you trash the drive.

It's flattering, but you know, if you're happy with my advice, then I'm happy, really happy.

Hello, Hakan. My Mama told me that if you receive help from someone,
you shouldn't just say thank you, but express it.
I wanted to thank you for your help with a small gift and propose a personal project, so I asked for your contact information,
but I can't find it.

Please contact me. You have no idea how much my mom nags.

My email is joshualee777-at-gmail-dot-com.