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Meichinger
Meichinger

10 Feb 2025 20:57

Replied by Meichinger on topic systematic drift on arcs

systematic drift on arcs

Category: General LinuxCNC Questions

Adding a shield to the step cable has not changed anything.
I will scope the step signal in the next few days...
I tried it at least 8 times today at different speeds.... it was quite intriguing that the offset diameter increased when the speed was increased, but the offset angle always remained constant.

Anyone have any other recommendations on how to fix this?

IB_CnC
IB_CnC

10 Feb 2025 20:38

Replied by IB_CnC on topic ProbeBasic and sidemount, retractable 3D Probe

ProbeBasic and sidemount, retractable 3D Probe

Category: QtPyVCP

Lcvette wrote:
nice.. have you considered simply adding the probing tool number parameter to the toolchange call with an if statement? this way anytime you load or unload the probe tool it would activate a subroutine to either deploy the probe or retract it?

I made it like this now, reading the tool number, converting to float, compare with wcomp.
3D_Probe_Extend is bound to an output pin on my mesa daughter card.

adast
adast

10 Feb 2025 20:28 - 10 Feb 2025 20:59

lcec configuration for exotic drive was created by adast

lcec configuration for exotic drive

Category: EtherCAT

Hello.

I have exotic servo drive from China, I tried to control it via cia402 hal, but it doesn't work, status word is always zero.
Then I tried to trigger the state machine manually via halcmd and halshow. The drive still doesn't work, it is in OP state, but the status word is always zero. I tried different configurations - but without success.

I also tried to control it via CodeSys control RTE (CiA402 ethercat) on my Windows laptop - everything works, the same settings, rxpdo, txpdo, dc.

Any ideas what the problem could be?

I attach my configuration and XML from the manufacturer:

File Attachment:

File Name: ethercat-conf.xml.txt
File Size:1 KB

File Attachment:

File Name: device.xml...2-10.txt
File Size:184 KB

I use debian bookworm with preempt-rt kernel and isolcpus. I tried to run servo drives from another manufacturer with same software - they work like a charm.

Thanks.

DanSta1988
DanSta1988

10 Feb 2025 19:54

Pixeled screen on remote desktop was created by DanSta1988

Pixeled screen on remote desktop

Category: General LinuxCNC Questions

Hi all,

This is my fist post on the forum.

I have a CNC setup running on an old PC. I wanted to have a go at it and try to go to a rapsberry pi 4B to run it. much more compact etc.
I have ordered from byte2 bot a board to make the raspberry pi with an serial connection connecting to a CNC break out board.

I have installed this LinuxCNC 2.9.4 Raspberry Pi 4 OS based on Debian Bookworm Raspberry Pi 4 Uspace compatible with Mesa Ethernet and SPI interface boards.

I have also installed xrdp and tight vncserver

When I connect from my home computer on windows 11 I am able to find the raspberry pi via my home network but when I log in I get a pixeled image. (see attachment.)

Is there something that has had the same issue and has an idea how to get rid of it?

Thanks in advance!

meister
meister

10 Feb 2025 19:13

Replied by meister on topic LinuxCNC-RIO - RealtimeIO for LinuxCNC based on FPGA (ICE40 / ECP5)

LinuxCNC-RIO - RealtimeIO for LinuxCNC based on FPGA (ICE40 / ECP5)

Category: Computers and Hardware

# Installer-Script (debian-bookworm only)

if you have a Debian-Bookworm installation (e.g. from the LinuxCNC ISO or the LinuxCNC raspberry image) you can simply use this script to install all depends and the icestorm and gowin toolchain (gowin only on Intel/AMD)

wget -O- www.multixmedia.org/riocore-installer.sh | bash

PCW

10 Feb 2025 19:08

Replied by PCW on topic THC with Beckhoff EL5101 and THCAD2 => encoder signal loss

THC with Beckhoff EL5101 and THCAD2 => encoder signal loss

Category: Plasmac

I would check the signal at the EL5101, it sounds like an electrical issue.

Is the EL5101 setup and wired for the THCADs differential signals?

(a THCAD cannot output a 0 frequency unless it has it's input polarity reversed or lacks proper 5V power)

3404gerber
3404gerber

10 Feb 2025 18:47

Replied by 3404gerber on topic Anyone figured out how to get Trinamic's TMC5160 drivers working with LinuxCNC?

Anyone figured out how to get Trinamic's TMC5160 drivers working with LinuxCNC?

Category: Driver Boards

From what I see in the Remora docs and source code, it only supports TMC2208/2209 with UART communication. As far as I know, the TMC5160 cannot be configured to use step/dir with UART configuration; it can only mix SPI and step/dir.

tommylight

10 Feb 2025 18:41

Replied by tommylight on topic Voron Life , for anyone going into 3D printing !

Voron Life , for anyone going into 3D printing !

Category: Additive Manufacturing

Not much on youtube @toma.3d but there are pictures on instagram with same user name @toma.3d
As for nozzle/hotend, all have V6 cold end with Volcano hot end, from 0.4 to 1mm nozzles. Nothing fancy but works properly.

MarkoPolo
MarkoPolo

10 Feb 2025 18:35

Replied by MarkoPolo on topic qtvismach, a axis toolpath

qtvismach, a axis toolpath

Category: Qtvcp

There is one problem after the last changes.

The tool trace disappears after 30 minutes.

It looks like the tool trace is constantly being saved, even though the machine and simulation are not making any movement. I think it is constantly saving to some buffer which, when filled, deletes the oldest content.

The screen in vismach is refreshed every 100ms, if I decrease this value, the trace will disappear earlier than 30 minutes.

PCW

10 Feb 2025 17:55

Replied by PCW on topic Hal configuration for BISS encoder

Hal configuration for BISS encoder

Category: HAL

5I25/7I77/7I74-BISS

File Attachment:

File Name: 5i25_7i77_...ss3d.zip
File Size:91 KB

5i25/7i76 with 3 PWMgens replacing the first 3 stepgens with BISS on 7I74

File Attachment:

File Name: 5i25_7i76p...ss3d.zip
File Size:88 KB

timo
timo

10 Feb 2025 17:50

Replied by timo on topic need help！ mesa 7i95 connection problem

need help！ mesa 7i95 connection problem

Category: Driver Boards

Hello,

sudo lspci -nn|grep -i ethernet delivers:

"Ethernet controller [0200]: Intel Corporation Ethernet Controller I225-V [8086:15f3] {rev 03}"

further trials did not result in much other than: again 1:45 am :-)

I tried another mini PC that I bought really cheap. Some difficulties to install from USB stick. I am not sure why it refused to install "uefi files" at first. (yet again I "fixed it" by random clicks on different options). The Ethernet adapter on this cheap Mini (it worked yesterday with the now deleted Windows 11) is a Motorcomm YT6801. This Ethernet adapter was not detected during installation. I tried to get it running using this instruction.
github.com/dante1613/Motorcomm-YT6801/bl...20-%20instruction.md
I have the feeling, that I messed the installation up quite a bit, not knowing what I am doing... :-)

.
The Motorcomm adaper showed (initial value for rx-usecs: 200), smallest value I could set with the ethtool (trying), was rx-usecs:3. The ping times seem to be influenced by that and went down from approx. below 0.5 ms to below 0.2 ms

Latency test in general I did not do these days.

Thank you for helping, so I am relieved that the 7i95 is still working.

Sandro
Sandro

10 Feb 2025 17:32 - 10 Feb 2025 17:33

Replied by Sandro on topic THC with Beckhoff EL5101 and THCAD2 => encoder signal loss

THC with Beckhoff EL5101 and THCAD2 => encoder signal loss

Category: Plasmac

Hello everybody,

Thank you all very much for your inputs and recommendations. I can test most of them next weekend and report back to you.

I've tested the THCAD2 with a divider ratio of 1/128 and 1/64 already, but I can't remember if I also checked with 1/32. Will definitely try again.

I will also check the cabling again and the stability of the 5V power supply.

I think the frequency does not go to absolute zero but to less than 1 Hz (guess). I will also have a closer look at the duration of these drops. The EL5101 seems to provide some values for underflow, overflow and also the possibility to filter the frequency.

Warning: Spoiler!

static const lcec_pindesc_t slave_pins = {
{ HAL_BIT, HAL_IO, offsetof(lcec_el5101_data_t, ena_latch_c), "%s.%s.%s.enc-index-c-enable" },
{ HAL_BIT, HAL_IO, offsetof(lcec_el5101_data_t, ena_latch_ext_pos), "%s.%s.%s.enc-index-ext-pos-enable" },
{ HAL_BIT, HAL_IO, offsetof(lcec_el5101_data_t, ena_latch_ext_neg), "%s.%s.%s.enc-index-ext-neg-enable" },
{ HAL_BIT, HAL_IN, offsetof(lcec_el5101_data_t, reset), "%s.%s.%s.enc-reset" },
{ HAL_BIT, HAL_OUT, offsetof(lcec_el5101_data_t, inext), "%s.%s.%s.enc-inext" },
{ HAL_BIT, HAL_OUT, offsetof(lcec_el5101_data_t, overflow), "%s.%s.%s.enc-overflow" },
{ HAL_BIT, HAL_OUT, offsetof(lcec_el5101_data_t, underflow), "%s.%s.%s.enc-underflow" },
{ HAL_BIT, HAL_OUT, offsetof(lcec_el5101_data_t, latch_c_valid), "%s.%s.%s.enc-latch-c-valid" },
{ HAL_BIT, HAL_OUT, offsetof(lcec_el5101_data_t, latch_ext_valid), "%s.%s.%s.enc-latch-ext-valid" },
{ HAL_BIT, HAL_IO, offsetof(lcec_el5101_data_t, set_raw_count), "%s.%s.%s.enc-set-raw-count" },
{ HAL_S32, HAL_IN, offsetof(lcec_el5101_data_t, set_raw_count_val), "%s.%s.%s.enc-set-raw-count-val" },
{ HAL_S32, HAL_OUT, offsetof(lcec_el5101_data_t, raw_count), "%s.%s.%s.enc-raw-count" },
{ HAL_S32, HAL_OUT, offsetof(lcec_el5101_data_t, count), "%s.%s.%s.enc-count" },
{ HAL_S32, HAL_OUT, offsetof(lcec_el5101_data_t, raw_latch), "%s.%s.%s.enc-raw-latch" },
{ HAL_U32, HAL_OUT, offsetof(lcec_el5101_data_t, raw_frequency), "%s.%s.%s.enc-raw-freq" },
{ HAL_U32, HAL_OUT, offsetof(lcec_el5101_data_t, raw_period), "%s.%s.%s.enc-raw-period" },
{ HAL_U32, HAL_OUT, offsetof(lcec_el5101_data_t, raw_window), "%s.%s.%s.enc-raw-window" },
{ HAL_FLOAT, HAL_OUT, offsetof(lcec_el5101_data_t, pos), "%s.%s.%s.enc-pos" },
{ HAL_FLOAT, HAL_OUT, offsetof(lcec_el5101_data_t, period), "%s.%s.%s.enc-period" },
{ HAL_FLOAT, HAL_OUT, offsetof(lcec_el5101_data_t, frequency), "%s.%s.%s.enc-frequency" },
{ HAL_FLOAT, HAL_IO, offsetof(lcec_el5101_data_t, pos_scale), "%s.%s.%s.enc-pos-scale" },
{ HAL_FLOAT, HAL_IO, offsetof(lcec_el5101_data_t, freq_scale), "%s.%s.%s.enc-freq-scale" },
{ HAL_FLOAT, HAL_IO, offsetof(lcec_el5101_data_t, freq_filter_gain), "%s.%s.%s.enc-freq-filter-gain" },
{ HAL_FLOAT, HAL_OUT, offsetof(lcec_el5101_data_t, freq_filtered), "%s.%s.%s.enc-freq-filtered" },
{ HAL_TYPE_UNSPECIFIED, HAL_DIR_UNSPECIFIED, -1, NULL }
};

I was also thinking of some moving average to filter the drops. But I don't know how I could implement this. Writing a custom HAL component?

unknown
unknown

10 Feb 2025 17:05

Replied by unknown on topic The dumification of humanity through internet

The dumification of humanity through internet

Category: Off Topic and Test Posts

I'll just giggle at the irony of your opening post.

NT4Boy
NT4Boy

10 Feb 2025 16:59 - 10 Feb 2025 17:00

Replied by NT4Boy on topic HURCO KMB-1 Control Update

HURCO KMB-1 Control Update

Category: Milling Machines

Three axes moving. Not without a fight.
On enabling the servos, without me touching anything, the z axis would advance about 1mm, and trip out with joint follower error. Similar symptom to replacing an encoder and getting the a and b channels swapped. Took me too many hours to find in the heart of Tommy's tuning guide the answer, put a minus in front of the motor scale figure. (Required on all the axes.)
I've entered a default figure 20 for P and deadband.0001mm. Kind of surprised I cannot get it to error even at max jog speed.
Keep jacking up the P value, until it oscillates I guess, a job for another day.

Todd Zuercher

10 Feb 2025 16:46

Replied by Todd Zuercher on topic EtherCAT Testing?

EtherCAT Testing?

Category: EtherCAT

The real time kernels run, they just don't "work" as in the latency for real time tasks is about the same as running a non real time kernel.

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