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  • B.Reilly01
  • B.Reilly01
24 Jan 2025 17:51 - 24 Jan 2025 17:52

Adding 4th Axis to LinuxCNC with 7i92/7i77/7i76, Use absolute encoder or incr?

Category: Advanced Configuration

I think I'm seeing the lag while attempting to tune the axis - ferror is oscillating between over and undershoot the whole time very fast. Not enough to feel it, but enough to hear it. I've been reducing P to try to compensate for it, but that's been pretty futile. I think the drive is lagging, so linuxcnc tells it to speed up, then it reports overshoot, linuxcnc tells it to slow way down, rinse and repeat. That or I have an encoder/servo problem, and I don't want to replace that ($$). I may try getting the servo info direct, but I'm not sure how.
  • greekart
  • greekart's Avatar
24 Jan 2025 17:44
Is this considered good cut? was created by greekart

Is this considered good cut?

Category: Plasma & Laser

Hi everybody, i all most consider my plasma finished and i try every setting i can think to see how quality items i can cut. 
I can't say that i am thrilled from the results until now, are you consider this a good cut?

Height 92mm Width 40mm 1.5mm mild plate
30A 5400mm/min 
 
  • tommylight
  • tommylight's Avatar
24 Jan 2025 17:35
Replied by tommylight on topic Brilliant Bambu Lab

Brilliant Bambu Lab

Category: Off Topic and Test Posts

Isn't this also what Tormach did with LinuxCNC --> Pathpilot? I never saw equivelent upset about that here.

No, absolutely not.
PathPilot CAN be used without internet and it sending all the info to Tormach, it can use gcode generated from any other software, etc etc. And they sold it fully functional for 35$, probably still do, on a USB stick.
None of that will be possible with Bambu after the update.
No internet = no machine = dead weight
With internet = not your machine as you can not use other slicers = not your machine as it is sending everything back to china = not your machine as they can shut it down at any given time ... or burn your house by running the heaters at full tilt... in the middle of the night.
A while back someone hacked Bambu and just restarted whatever was being printed ON ALL connected Bambu printers on earth, so prints started over already stopped prints still on BEDS. This was squashed down so fast as most users of their printers got at least one free from them, so they just blamed it on power outage and moved on.
  • Onat
  • Onat
24 Jan 2025 17:09
Replied by Onat on topic LinuxCNC on Raspberry Pi 5

LinuxCNC on Raspberry Pi 5

Category: Installing LinuxCNC

Unfortunately linuxCNC terminates immediately with the following errors:
hm2_rpspi: Cant map peripherals: Invalid argument
hm2_rpspi: Cant map peripheral memory.

And so on (as far as I remember these were the original errors you had way back right?)
Is there anything specific I have to set up? I just pulled my machine config & tried to run it.

Thank you
  • blazini36
  • blazini36
24 Jan 2025 16:43 - 24 Jan 2025 18:14
Replied by blazini36 on topic Flexible GUI

Flexible GUI

Category: Flex GUI

Cool, that oughtta do it. I'll update my Flexgui as soon as I get done messing with HAL,

Having a little trouble with the GUI Estop. I have a hardware Estop as well, connected to halui. Both the GUI and the hard Estop work perfectly as long as I'm using one or the other. The hard Estop triggers the GUI just the same as the GUI Estop does.

The problem occurs when I have the hardware Estop set and push the GUI Estop button, the UI Estop will unset the Estop condition. Not quite sure how I stop that from happening.

Heres my HAL connections:

[code]##Estop Connections
net estop-NO-switch   => halui.estop.activate
net estop-NO-switch   => oneshot.estop.in     #Oneshot triggers reset from hardware Estop release
net estop-out   <= iocontrol.0.user-enable-out
net estop-out   => iocontrol.0.emc-enable-in
#net estop-out   => motion.enable
net estop-reset <= oneshot.estop.out
net estop-reset => halui.estop.reset
net estop-in    <= halui.estop.is-activated
net estop-in    => flash.estop.enable
net estop-led   <= flash.estop.out
setp flash.estop.hold-prec       false
setp flash.estop.hold-prec-inv   false
setp flash.estop.hold            false
setp flash.estop.flash-rate-ms   500
setp oneshot.estop.width         0.5
setp oneshot.estop.retriggerable false
setp oneshot.estop.rising        false
setp oneshot.estop.falling       true
[/code]


Just noticed another issue. I have the UI Estop button colors set in the ini file. If I ignore the hardware Estop, the button colors change as expected with Estop and power. If I set the hardware Estop, the UI states work fine, and the button labels change, but the button colors don't change. 

Also, just tried the multi-state label. I can't get the hal pin to show up, am I doing something wrong?
 
  • Grotius
  • Grotius's Avatar
24 Jan 2025 16:24
Replied by Grotius on topic scurve trajectory planner

scurve trajectory planner

Category: General LinuxCNC Questions

Hi,

The spikes are solved. Problem was found. Not havely tested, just one video.
1. Using a linestrip derived from a bspline seems to work ok.
2. Slightly changed the scurve algo.


Code is updated.
  • tommylight
  • tommylight's Avatar
24 Jan 2025 16:24
Replied by tommylight on topic Brilliant Bambu Lab

Brilliant Bambu Lab

Category: Off Topic and Test Posts

It seems some of the major points are being missed here, so i'll try an example:
Last year i was given a top of the line DJI phantom 4, the one with 9 cameras where 8 are used for colision avoidance, a VERY good monitor/screen on the remote, etc etc, somewhere in the >3500$ range when new, so one day i got it out of the box to have it hoover around the neighborhood and hope one of the neighbors does not shoot it down, turned it on, it beeped and flashed, turned on the remote, it connected and showed ready, gave it some throttle = nothing, just a warning on screen that it HAS to be connected to internet or it will not fly!!!!!!!!!!!!!!!!!!!!!!!!!
Oh HELL NO !
Went into the shop and promptly dismantled it, took off 4 motors and put them in my drone, that i can use without internet or DJI monitoring everything i do with it, that i CAN control however i like.
My stuff, MINE!
Gave the remote to a friend as he had the cheapo one with no screen.
-
Humans are absolutely missing the fact that you are paying just to be able to use hardware as they see fit (companies), not paying for stuff that is yours, nor will it ever be.
Same with Iphones and Samsungs and cars and everything, a friend bought a 141000 Euro BMW and luckily the heated seats were payed for for a year and later they backed off of it, as when i told him he has too pay 18 Euro a month to enable heated seats, he was all red in the face and could not comprehend how are they allowed to do such shit with no repercussions
-
I will never ever buy a car that can be remotely shut off, even if one is given to me for free, i will ABSOLUTELY get rid of it, immediately! Nor will i ever buy anything new with such features ever again.
And, yes i use a Nokia 6310, despite Samsung allowing you to use their phones with no Samsung account, but it will not allow you to use the include "Samsung Health" without their account, that made the decision for me, as i used the heart rate and saturation feature often. Now i bought a 5 Euro gadget that does that.
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