Advanced Search

The MX3660 has its own breakout borad that outputs a filtered (buffered) signal for pins 8 and 9.

Connect your servo to those.

There's no need for an extra breakout board.

S-Curves would be nice.

Constant acceleration causes machine wobble.

Explain.

Did ya fix it?

Hello, first, you need to get yourself a CMSIS-DAP probe. You can buy one on eBay, Amazon, or covert an ST-link probe. Here is a line to the thread how to do it.

forum.linuxcnc.org/18-computer/44828-rem...rd?start=2050#321860

Once you have the probe, you need to upload the firmware, I will send you the commands later when I have a moment to take a look into my notes.

Once you have the new firmware, then you can follow the instructions from my post above:

forum.linuxcnc.org/18-computer/44828-rem...rd?start=2140#327240

Happy to help

Hi can someone tell me if mine are broken.
i cant understand these. They are stock part on the cnc machine.
And would like to keep it stock. 

here is one of the switches. Attached.

I use an new 7i76U board. And can easy just trigger the end stop pin with a wire from positive source (+)

Since this gives reverse. I did think to add a relay.
but the relay just stays on.

How do these work. I get constant 24 volt.
but when messure resistanse it does from 4ohm to 40ohm.
so something is happening. When it switches and led goes on/off too.

Anyone know these.
https://photos.app.goo.gl/jcqMZvWbBJQ8ZE1p6https://photos.app.goo.gl/jcqMZvWbBJQ8ZE1p6

I've mentioned a few times that my DIY mill is very old (32 years), and probably some of you have looked at my pictures in the past.  But bear with me -- this is the last post I'll likely make about this mill.
 

I'd been making a bunch of improvements lately (new RPi controller, mesa card interface, M3/M5 spindle control, M7/M9 vacuum control, some new hold-down techniques, automatic homing, better E-switch, probably some other stuff).  It had been a while since I'd spent much time on it, so I was having a lot of fun.

My wife asked for help on a project, and I'm always happy to oblige, of course.  We designed what she needed, and I set about cutting it.  After a couple of false starts over a couple of days, the rough draft carve looked good.  She needed two good copies, and the first of those looked great! 

The second one, sadly, broke my Z axis.  Not the project's fault, and not the mill's -- we'd have to blame the designer:  me.  Not only did the Z axis driven coupling come loose from the carriage, but because of the poor design, there was no way to fix it without a really huge amount of dis/reassembly.  Which I really couldn't face.  One too many times, straw that broke the camel, etc.  I was done.

So I've ordered a new mill -- I'm expecting a Sainsmart Genmitsu 4040 Pro Max on my doorstep any day now.  I'm very excited about it.  And now if it breaks, I can blame someone else!

But I had to make space.  This only took an hour or so, and it was actually very cathartic.

 
 

A note about the design.  Using drawer slides to support the X/Y carriages, as the original plans called for, worked far better than you'd expect.  High quality slides are specifically made to keep drawers from sagging...  at all.  So if you put them on their side, and use them over a shorter distance, they're not true "linear rail" quality, but they're very, very good, especially for a DIY'er.  They didn't work well on the Z axis because unlike X and Y, Z undergoes forces in all directions, not just side to side.  I eventually rebuilt that axis using actual linear rails, but the rest of the Z design wasn't so great.  Ahem.  As we've learned.)

Anyway, I think one of the things I'll miss most about that mill is the limit switches.  You've gotta admit, this is cute, right?  
 

Good day all. I seem to be having a bit to trouble getting started. I have an NVEM V5 controller and RPI 5 with LinuxCNC installed. Is there anywhere on planet earth that has a start to finish, all in one place, all on one page, set of instructions or video that will tell me what version of what software from what source to use in what way using what commands and what wires to hook up where to get it all done with the hardware I have. I have gone through 100's of posts and can grasp the general concepts of what needs to be done but it's a small and sometimes incomplete piece of info from 1 post and then one has to read 5 or 20 more before the rest of the info is found. In the end, and totally a flaw of my own, I seem unable to pull all of this scattered info together and have it make any sense as to how to get from start to finish without burning something up or creating an unsalvageable mess.

I found a video by Scott 3D on youtube but it is 3 years old and several key points are just blown by with no explanation and no info on exactly what versions of what from where is needed today.

Is there a single set of complete instructions with valid links in existence anywhere for setting up an NVEM v5 with LinuxCNC?

This is my last effort to get the ping down. I set the Cool Option to thermally optimized, a cool&quiet option in BIOS. Other settings would bee acoustic optimized or full throttle. I hope it does not affect anything of cpu clocks.
 

rtt min/avg/max/mdev = 0.105/0.126/0.259/0.002 ms  what do you think?

Greetings, Hanno

 

Hi, I tried a lot the last days.
I set the P to 500 as you said, I made the realtec optional kernel settings, i took a look for Energy efficiency and did not find anything of this, I set ff2 back to 0, and in the first try (an air run of my last part) it seemed to run - but 2 min after start the motor-0-position error came again, right in a direction change of the path. As before.

That was very disappointing, so I decided to get another PC from the shelf, a Lenovo m910q with 16GB, i7-6700T 4C/8T and put the SSD from the other in it.
The machine started at once, no problems to fix, I declined all BIOS settings that are described in the latency thread. This jounger PC has WLAN for the Internet and a I219-LM Intel network card, that should be better, somebody told me.

I did the coalescence workaround in etc/interfaces, I made the ethtool working (sudo ethtool -C enp0s31f6 rx-usecs 0), I made the kernel options:   quiet irqaffinity=0,1 isolcpus=3 intel_idle.max_cstate=1 i915.enable_rc6=0

The outcome was not bad, but worse than before, regarding the ping times. The realtec gave me 0,056-0,070, the intel gives out:
rtt min/avg/max/mdev = 0.165/0.189/0.307/0.052 ms which is bad in my eyes.
Even if i kill the WLAN adapter, it does not much better:
111 packets transmitted, 111 received, 0% packet loss, time 112114ms
rtt min/avg/max/mdev = 0.108/0.164/0.199/0.011 ms

What do you think about it? should I go down to the machine and try it out or should I do sthing else?

Thanks for your advice, I appreciate that much!
Hanno

 

it worked on my Delta B3 Ethercat servos using CIA402/CSP config (see attachment).
i used linuxcnc-scurve-compat  from codeberg.

I still don't have the steppers or the drivers, I hope they will arrive soon, for now I have tested with only this stepper and driver connected:

 

thinking this was the problem I disconnected the stepper and left the card alone but the error is the same as soon as I start a video on YouTube or if I start chrt 99 ping -i .001 10.10.10.10 -c 40000000

the file conf:
 
 
 

driver:TB6560 JP-1635A
stepper: 57HD0401 15SB
controller: NVEM V5

Stepper and driver is only for test not final hardware.







 

--SOLVED--
with activating on terminal;
source venv/bin/activate

then I run editvcp and select config.yml file

everything is ok now

What do you mean with "SoE"?
Maybe i try to get a used Beckhoff AX5xx from eBay when thats easyer to use with LCNC.

... the SIEMENS etherCAT pcb is hard to get. it starts to annoying me...


endian post=327010 userid=29161

AX5xxx from beckhoff is SoE and it can be pain to create custom .xml which should be editable out of Sachas own .xml files...

 

tommylight wrote:

Rod, why?
He did not confirm that the machine has switches on both sides yet, so why send him that way, he will end up with a mangled machine.
 

Well he did say

Mother wrote:

I would imagine that it does. All the documentation suggests so and from what i can see on the other side (Its right up against a wall) It looks the same on both sides so I would wager it has them on both. So im going with yes on that.

 

I have managed to make some progress over the past weeks.

I believe I managed to add homing properly to the DeMS300 driver, however I am now facing the issue that the homing mode PDOs 6099, 607C and 609A (respectively homing speed, homing offset and homing accel.) are simply not showing up. Hence why the driver fails to initialize them. Interestingly 6098, the homing method, does show up on, but the other 3 do not. This makes the drive give the motor a current and fixes it in place, however it is not able to start the homing procedure and just stays in place. The control and status words look entirely correct, so my assumption is that the missing 6099, 607C and 609A PDOs are causing it to be unable to start homing.

As you can see in the driver I modified, those PDOs are commented out at the initialization (on lines 225-227). Uncommenting them has the driver compile successfully, yet it fails to start as it is unable to initialize them. I am not sure how I should initialize them properly. In the header file I changed LCEC_DEMS300_PDOS to 15 as well (it used to be 11).

Do you think the PDO mappings are the problem here? I had no success in establishing a connection over TwinCAT, but I may need to look into that again.