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  • smc.collins
  • smc.collins
26 Nov 2024 14:21

Jones and shipley cylindrical grinder CNC conversion, grinding camshafts, cranks

Category: General LinuxCNC Questions

timo post=315275 userid=29371What I saw in hobby forums are mostly "copy" machines using a master(template)cam and some mechanical system to follow the template. (this boils down to 2d operation.

What do you mean by scale? Does it matter what size the parts are?

lobe shapes/profiles are not directly related to the base circle. That is to say that, the size of a lobe is correlated to the base diameter of the camshaft journal, but not always. I can upload some 3d models of camshafts and screen shots to illustrate this. 
  • PatJac
  • PatJac
26 Nov 2024 14:02 - 26 Nov 2024 14:46
  • Grotius
  • Grotius's Avatar
26 Nov 2024 13:40 - 26 Nov 2024 13:48
Replied by Grotius on topic Ethercat auto configurator.

Ethercat auto configurator.

Category: EtherCAT



Added a scope widget. Maybe add cool widgets. Have seen flight simulator widgets 

  • ceramicoo
  • ceramicoo
26 Nov 2024 13:11

dynamic speed of spindle related to speed of x,y,xy axis speed via pwm

Category: Advanced Configuration

thanks for reply .but laser has just x and y but my machine is special sewing and has 4 axies xyza and spindle works as needle punch that speed must be dynamicly related to speed of x axies y axies or xy movment speed.
  • timo
  • timo
26 Nov 2024 12:35
Replied by timo on topic Frage wegen Spindelencoder an 7i76

Frage wegen Spindelencoder an 7i76

Category: Deutsch

Achtung jetzt kommt gefährliches Halbwissen:

Manche Encoder laufen mit Differnzsignal, manche gegen GND.
Auf der Mesa Karte sind soweit ich mich erinnere Jumper, wo man die Sorte auswählen muss.
Jumper W2 entscheided, ob TB3 extra 5V benötigt, oder ob 5V von der anderen Verbindung kommt.
Zitat:

"The 7I76s high speed encoder input can be programmed for differential or single
ended mode operation. W4, W5 and W6 set the encoder input mode. When W4,W5,and
W6 are in the right hand position, the encoder input is mode is differential. When W4,W5,
and W6 are in the left hand position, the encoder input mode is single ended or "TTL"."

Da würde ich mal gucken ob W4, W5, und W6 zum Encoder passend gesteckt sind.

Hoffe das hilft

Grüße Timo
  • Aciera
  • Aciera's Avatar
26 Nov 2024 12:29 - 26 Nov 2024 13:04
Replied by Aciera on topic MMS einschalten mit einem Taster.

MMS einschalten mit einem Taster.

Category: Deutsch

[edit]
Sehe grad, beim Ausprobieren, dass es scheinbar ein Problem gibt mit toggle2nist in Kombination mit halui.

Versuchs mal so:
loadrt toggle
loadrt toggle2nist
addf toggle.0 servo-thread
addf toggle2nist.0 servo-thread

net button <= hm2_7i76e.0.gpio.040.in_not => toggle.0.in
net button-tgld <= toggle.0.out => toggle2nist.0.in
net t2n-is-on <= halui.mist.is-on => toggle2nist.0.is-on
net t2n-on <= toggle2nist.0.on => halui.mist.on
net t2n-off <= toggle2nist.0.off => halui.mist.off
  • Guy
  • Guy
26 Nov 2024 11:55
Replied by Guy on topic MMS einschalten mit einem Taster.

MMS einschalten mit einem Taster.

Category: Deutsch

Dank für die schnelle Antwort, nur leider funktioniert das auch nicht. Das würde mit einem Schalter funktioniert, den wenn ich den Taster drücke geht die MMS an, aber wenn ich den Taster los lass geht die MMS wieder aus. Wenn ich einen Schalter nehmen würde hätte ich das selbe Problem, dass beim Starten eine Fehlermeldung kommt wenn der Schalter auf ON steht.

Ich will im Grunde genommen dass es wo funktioniert wie auf dem Bildschirm, Taste drücken = AN, noch mal drücken wieder AUS.

Ich muss es wohl mit zwei Taster machen.
  • rodw
  • rodw's Avatar
26 Nov 2024 11:53

Real-time kerel not detected on patched 6.12

Category: General LinuxCNC Questions

This is actually quite exciting for Pi users. One of the problems using earlier pi kernel code (eg the rpi-6.1.y  branch used in linuxcnc) was that you had to pull code at a specific commit that matches the RT patch as there was a risk the code deviated too far from the patch and you ended up building a broken kernel. By using the 6.12.y branch head of the Pi kernel, it will always be up to date :)
Interested users who wanted to compile a complete image for the pi4b or pi5 could clone the linuxcnc rpi-img-builder-lcnc (2.9.3 branch) or the master version in my repo which is arguably more up to date.
github.com/rodw-au/rpi-img-builder-lcnc/tree/linuxcnc-2.9.3
You would need to:
1. delete the RT patch in github.com/rodw-au/rpi-img-builder-lcnc/.../patches/userpatches
2. delete the commit details (2 lines) here github.com/rodw-au/rpi-img-builder-lcnc/...9.3/userdata.txt#L28
3. Change the kernel version here  to 6.12.y github.com/rodw-au/rpi-img-builder-lcnc/....9.3/userdata.txt#L7
 And it should build. (cross compiled on an x86 PC)

Bonus marks if you merge the upstream repo in but that will likely break some of the config files which will need tweaking after recreating.
 
  • Grotius
  • Grotius's Avatar
26 Nov 2024 11:33
Replied by Grotius on topic Ethercat auto configurator.

Ethercat auto configurator.

Category: EtherCAT



Node video sofware :


Node video hardware:
youtube.com/shorts/kOSrcHN5y7o

The ethercat auto configurator app is now able to perform logical operations. Like a plc.
Made a example timer widget. That sends pulses to the ethercat output ports.
The pulse has a high- and low time.

There is a easy way to create your own logical widgets. Creating a new widget cost's about 15 minutes of your presious time.
There is a QCustomWidget example widget that shows you how to do it.

We can use all kind of widget's here.

Project source
  • RotarySMP
  • RotarySMP's Avatar
26 Nov 2024 11:26
Replied by RotarySMP on topic Weiler DZ26 Millturn Conversion

Weiler DZ26 Millturn Conversion

Category: Turning

I used the 5i25 +7i77+7i84 on my Maho, as the Ethernet cards were not yet available. Used the 7i95 on my mini lathe, and a 7i92+7i83+7i84+7i85+7i73 on the Schaublin.

As Tommy said, forget performance differences between PCI and Ethernet cards, that wont be an issue.

I hate jogging on a touch screen. You are looking at the part, probe, whatever and reaching to touch a none tactile feedback peice of glass with a greasy finger, trying to tap through pulse by pulse. Same with feed hold, cycle start, coolant start etc. It is a personal choice.
  • rodw
  • rodw's Avatar
26 Nov 2024 11:18

Real-time kerel not detected on patched 6.12

Category: General LinuxCNC Questions

www.phoronix.com/news/Linux-6.12-Does-Real-Time
6.12 does not need patching for AMD64 according to the above, it should work with just setting the preemption to full. That needs to be tested.
 

Not so lucky Tommy. You still need to compile the kernel to get PREEMPT_RT on 6.12 after setting fully preemptible kernel under general settings in menuconfig when compiling the kernel.
But you no longer need to apply the RT patch before compiling the kernel.
There are a few tutorials on this. HEre is one for the Pi 5
github.com/by/RT-Kernel
  • WKS-3D
  • WKS-3D's Avatar
26 Nov 2024 10:42
Frage wegen Spindelencoder an 7i76 was created by WKS-3D

Frage wegen Spindelencoder an 7i76

Category: Deutsch

Hallo Gemeinde,
ich bin immer noch mit der Konfiguration meiner Drehmaschine dran, dass meiste funktioniert und das sogar mit der Oberfläche Probe_Basic_Lathe.
Gestern wollte ich ein ganz einfaches Testteil drehen, bisschen planen und Außengewinde drehen.
G96 funktioniert, allerdings der Vorschub mit mm/U funktioniert nicht, mm/min ja. Mit dem Außengewinde geht auch nicht, der Drehstahl bleibt an der Startposition stehen und das wars.
Eben habe ich mir dann mal die passenden Encoder Ein- und Ausgänge in der HAL anzeigen lassen und wenn ich die Spindel drehe, bleibt alles auf 0 (Null). Ok, dann kann es ja nicht funktionieren.
Als erstes würde mir da ein Verkabelungsfehler einfallen und dabei ist mir aufgefallen, dass "+5VP" nicht angeschlossen ist (stand eigentlich auf meiner ToDo-Liste das abzuklären, aber vergessen).
Lange Rede kurzer Sinn, muss ich an den TB3 +5VP +5V anschließen?
Ich habe mal 2 Bilder angehängt, sagt mehr aus als 1000 Worte ;)

 

Vielen Dank schonmal

Gruß
Olli
  • my1987toyota
  • my1987toyota's Avatar
26 Nov 2024 10:20 - 26 Nov 2024 13:32
Replied by my1987toyota on topic 8 Spindle Gang Router

8 Spindle Gang Router

Category: Show Your Stuff

Sorry to hear that . This has been an ongoing trend for years now unfortunately. And these companies wonder why
nobody has loyalty any more. If it weren't for how terrible looking for a new job has become I would say time to
find a new one. Once another owner comes in they use the original personnel to train the new hires and push
the old ones out the door in a year or two. I have seen it happen time and again. And yes it's a worry where I work
as well. It's one of the reasons I am so cynical about things.
  • Ahmed.emara
  • Ahmed.emara
26 Nov 2024 09:27
Ethercat + step/dir signals was created by Ahmed.emara

Ethercat + step/dir signals

Category: EtherCAT

hello guys,
 i have 5 axis milling cnc machine with EL8 Servo with ethercat based communication and i hava DIEWE IO module which produces only digital output. I want to add another stepper motor with PULSE/DIR communication to move the tool magazine during the the ATC i want to know how to use this stepper motor with my servo motors and how to generate the PWM signals for the stepper in hardware connection and in the .hal file
 
  • martin2day
  • martin2day
26 Nov 2024 08:20

Knuth Mark Super CNC Retrofit - need some help with my first LinuxCNC

Category: Milling Machines

Hello Fabian,

i did not make the Retrofit today, because i can fix my broken Gplus 450 and so i first want to make some parts with the machine i need.

Have a nice day
Martin
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