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Hello 
I have an old 6 axis robot and I plan to start it with linuxcnc.
I had already seen videos of robot control using linuxcnc on the internet and was hoping that I could do it myself.
After reading this thread and doing some tests and verifying the performance of genserkins, I was a bit skeptical.
Please guide me whether to continue with this or try another method?
I plan to use this robot for welding
 

The simple answer is
Do not use windows to edit machine files.
There should be some software that fixes such issues, but i have never used it so no idea what it is called, try searching google for
linux fix dos style endings

The complete source code is here:
github.com/LinuxCNC/linuxcnc

Thank you for this information. From your description, the functionality of HAL Scope resembles what I am seeking. I searched the contents of the ISO, but I could find no source files for it. Might those source files be available elsewhere? Both the kernel and user-space code would be useful, but the source for the kernel module would be the biggest time saver. Thanks

Hallo,
Ich bin gerade dabei meine X-Achse (Schrittmotor/Glasmaßstab/PID) zu kalibrieren.
Jetzt habe ich in der Linux-Doku einen PID-Autotuner gefunden.

Folgendes soll eingegeben werden:

#########################################

loadrt pid names=pid.y,pid.z
loadrt at_pid names=pid.x

setp pid.x.tune-effort 0.1
setp pid.x.tune-mode 1
setp pid.x.tune-start 1
#warten, bis die Abstimmung abgeschlossen ist
#setp pid.x.tune-mode 0

##########################################

Wenn ich das jetzt so in die HAL eingebe,speicher und die Maschine in
Linuxcnc einschalte,startet dann das Autotuning schon?

Da steht was von HALCMD,
aber nicht wie man das jetzt tun muß.
Über HALCMD habe ich bisher nur rausgefunden, das sie
der HAL übergeordnet ist,der HAL Befehle gibt.
Aber wie und wo setze ich die ein?

Ich bin noch Linuxcnc-Anfänger und hoffe ihr könnt mir weiterhelfen!

Gruß

Sven

 

Could you tell me how you can solve the problem? I'm trying to compile a component but it's giving me the same error, I'm a beginner if you could explain me step by step I'd really appreciate it

Analog and PWM are not the same thing, so your drive has either one or the other.
PWM to analog works with just a resistor and capacitor, wont be the best but it works.
A 100 Ohm reistor in series from PWM out to analog in, and a 0.1 to 1 microFarad capacitor parallel with analog input should be a nice starting point, bigger capacity = slower raise/fall time, and vice-versa.

It's not enough for an arc to be tangent to a line or to another arc. They have to be curvature continuous. When a line meets an arc on its tangent, the curvature goes from zero to 1/r immediately, where r is the radius of the arc. The radial acceleration goes from zero on the line, to v^2/r instantly where they meet. That means infinite jerk or at least very high jerk in real life. The same is true for arcs with differing radii that are tangent.

The only way to limit jerk is either to slow down to zero velocity where they meet, or join them with a type of curve with a curvature that smoothly varies between the two.

The problem is basically this: en.wikipedia.org/wiki/Track_transition_curve

Looks awesome Grotius

I'm also following this closely

I have a 22 ton 5axis machine I would love to see this working on

It has rapids of 40m per min so very fast and heavy. Would be a good torture test of your scurve code

jg00163206

Did you press ^C to abort?
If, a bit a pitty, as it does not look off too far, given you have still screws to turn to optimise.
Greez
chris

Got the same outputs, but how can we solce this problem now? Switching the servos on/off via relay is not really an option, there must be another way

Another thing that seems to make no sense is the limitation of previewing to files that are 20MB in size. (In axis there is no limit)
To load my file, I doubled the file size in glcanon.py, like this: " self.max_file_size = min(system_memory_gb, 20) * 1024 * 1024 * 2".
The file loading time with and without preview is identical. There is no difference in moving, rotating or enlarging the preview.

forum.linuxcnc.org/24-hal-components/329...i76e?start=40#295082

You can look here. My psb also works but requires 5v source without ripples.

HI
sorry but the DM3E-556 communicates directly via EtherCAT with LCNC,
what I said applies to the DM556 which needs an EtherCAT controller to communicate with LCNC
I don't see DM3E-556 among the devices supported by LCNC,
you will need to build an .XML generic to make it work   

tommylight wrote:

A few days back i posted a reply regarding analog and PWM where i think i stated that alanog outputs can be set to output +5V only, that is corrct, but then i went on to state that it will work for PWM inputs <this is not correct, so i need to fix this if i can find the topic, so if anyone bumps into it, please let me knwo so i can fix it and delete this topic.
Thank you.
From PWM to analog 5V is easy to do, just in case anyone ever needs it, not the other way around.

How can I get a varying analog voltage from 5v pwm? I see a lot of RC low pass filter as digital to analog converter online. I have a drive which takes analog PWM input to control the speed of a bldc motor. Help me out with either a link to build a robust DAC for the purpose or readily available solution to buy would be good too.