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  • Deckerjwd
  • Deckerjwd's Avatar
29 Oct 2024 02:49
Replied by Deckerjwd on topic Puma 6 axis Robotic Arm with Mesa 7i80/7i40

Puma 6 axis Robotic Arm with Mesa 7i80/7i40

Category: Advanced Configuration

so I'm not familiar with PUMA 200, but most robots have brakes, i have had all kinds of trouble with them. I would look at them and any counterbalance system. if it has a counterbalance and the brake is on often you can get it to move up but not back down.
  • PCW
  • PCW's Avatar
29 Oct 2024 02:38
Replied by PCW on topic Voltage divider for Mesa THCAD-10?

Voltage divider for Mesa THCAD-10?

Category: Plasma & Laser

OK the reason for the stepgen instability is the the P terms are all set to 10000
but should be 1000 for a 1 ms servo thread.
  • mal136
  • mal136
29 Oct 2024 02:33
Replied by mal136 on topic Voltage divider for Mesa THCAD-10?

Voltage divider for Mesa THCAD-10?

Category: Plasma & Laser

Hmm that's odd ; I uploaded it but it seems it didn't load or attached, apologizes hopefully this time it works .
  • Benb
  • Benb's Avatar
29 Oct 2024 02:32

Procedure to add a flood coolant to 7i96s

Category: Driver Boards

As per your request, attached is a diagram depicting 7i96s driving a DC pump motor using an external SSR. The SSR specs must match your motor power.

 
 
  • PCW
  • PCW's Avatar
29 Oct 2024 02:06
Replied by PCW on topic Voltage divider for Mesa THCAD-10?

Voltage divider for Mesa THCAD-10?

Category: Plasma & Laser

The main hal file: plasma_v2.hal
has not been attached.
  • mal136
  • mal136
29 Oct 2024 01:57
Replied by mal136 on topic Voltage divider for Mesa THCAD-10?

Voltage divider for Mesa THCAD-10?

Category: Plasma & Laser

Yes of course thank you so much for your help!

see attached 
  • tommylight
  • tommylight's Avatar
29 Oct 2024 01:33
Replied by tommylight on topic Voltage divider for Mesa THCAD-10?

Voltage divider for Mesa THCAD-10?

Category: Plasma & Laser

Thank you for clearing that up, although should have been at the very first post. :)
Your servo period set at 25597 was what sent me in that direction, that should not be edited normally.
  • PCW
  • PCW's Avatar
29 Oct 2024 01:27
Replied by PCW on topic Voltage divider for Mesa THCAD-10?

Voltage divider for Mesa THCAD-10?

Category: Plasma & Laser

Can you post your hal/ini files?
 
  • mal136
  • mal136
29 Oct 2024 01:05 - 29 Oct 2024 01:06
Replied by mal136 on topic Voltage divider for Mesa THCAD-10?

Voltage divider for Mesa THCAD-10?

Category: Plasma & Laser

I used the same exact values for my AXIS setup. I didn't randomly guess them, they operate well on AXIS. My whole machine worked with GRBL for 2-3years straight no issues, i just couldn't achieve THC with GRBL & would sometimes have issues with EMI.

Setup:
7i96 with THCAD-10
Nema 23 495oz motors(1.8degree , 3amps max) with
TB6600 drivers(running 1/4 microstepping at 3amps max) (i will upgrade them later after i sort this out), two 36v supplies(10amp each),
SFU1605 Ballscrew on all axis'. 

(It was a somewhat budget build)

My stepper scale is perfect at 2032, max velocity of 150in/min(~3800mm/min) and max accel of 50inch/sec^2 (~1270mm/sec^2).

I've played around and purposely made the machine loses steps and it happens around 200 inches/min, 180 it stabilizes and 150 is what i chose as extra margin of safety.


I only used chatgpt for coding questions or how to edit bios etc, my master's degree is in AI (i'll be done in May 2025); Ironically I'm struggling to figure this one out..lol , but i will not give up ! Even if l have to read the whole entire LinuxCNC PDF and QTplasma documents or learn how the code itself works, i will do it!

 

 
  • tommylight
  • tommylight's Avatar
29 Oct 2024 00:53
Replied by tommylight on topic Voltage divider for Mesa THCAD-10?

Voltage divider for Mesa THCAD-10?

Category: Plasma & Laser

...the machine moved but the stepper motors just kinda danced back and forth they didnt actually move the gantry at all. 

Any advice on why that is occuring?

Probably because the scaling, velocities and accelerations are not set properly.
My advice: Stop using chatGPT, it can not help with these types of issues, yet, set the values properly in PncConf, not just random values. Read about how to get those values right based on what you actually have on your machine.
Or take some pictures of the machine and upload them here, we can figure out a lot from pictures.
  • mal136
  • mal136
29 Oct 2024 00:19
Replied by mal136 on topic Voltage divider for Mesa THCAD-10?

Voltage divider for Mesa THCAD-10?

Category: Plasma & Laser

I changed the "servo period" to 1000000 and i re-did the config using PNFconfig and the machine moved but the stepper motors just kinda danced back and forth they didnt actually move the gantry at all. 

Any advice on why that is occuring?

My jitter went up a lot for some reason and was measuring 46060 for servo thread and 44293 for base thread.

Do i have a hardware issue with my computer ? I'm reading through the linxcnc documents and QTplasma docx as we speak but it doesnt really dive into some of these issues so im a bit lost on what i can do to resolve this.

I'm sorry to be a burden and i hope it doesnt come off as annoying but im really trying my best here , dedicating hours of trial and error and endless chatgpt questions to learn.

Thank you again everyone for your help, this is my first linuxcnc machine.

I'm genuinely confused how AXIS works perfectly fine and QTplasma doesn't operate as it should, any idea why?
  • MeBucket
  • MeBucket
  • WKS-3D
  • WKS-3D's Avatar
28 Oct 2024 23:35
Replied by WKS-3D on topic Problem mit externen Tastern

Problem mit externen Tastern

Category: Deutsch

Hatte noch was vergessen, das gehört auch noch mit dazu 
loadrt flipflop count=2
addf flipflop.0 servo-thread
addf flipflop.1 servo-thread
  • WKS-3D
  • WKS-3D's Avatar
28 Oct 2024 23:30
Replied by WKS-3D on topic Problem mit externen Tastern

Problem mit externen Tastern

Category: Deutsch

Danke für den Tipp, flipflop hats gebracht 
Hier die Lösung für meinen Einsatzzweck mit 2 Tastern und einem Relais zum Schalten von einem Pneumatik-Magnetventil:
# --- Pinole Input Signale ---
net taster-pinole-minus  <=  hm2_7i92.0.7i76.0.0.input-25
net taster-pinole-plus  <=  hm2_7i92.0.7i76.0.0.input-24
# Set flipflops
net taster-pinole-minus => flipflop.0.set 
net taster-pinole-plus => flipflop.1.set
net buf_taster-pinole-minus <= flipflop.0.out => hm2_7i92.0.7i76.0.0.output-01
net buf_taster-pinole-plus <= flipflop.1.out => flipflop.0.reset => flipflop.1.reset

Vielleicht kann es ja jemand brauchen.
CLOCK wird, wie man sieht, nicht gebraucht.


Viele Grüße
Olli
  • ihavenofish
  • ihavenofish
28 Oct 2024 23:23
Replied by ihavenofish on topic Brother TC-225 / TC-229 adventure!

Brother TC-225 / TC-229 adventure!

Category: CNC Machines

Ideas... not sure if its even plausible yet, just thinking out loud.



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