Repetier Server - Klipper input shaping with USB adxl345

opy01

Hello, I have had Repetier server for so may years and it always seems to do exactly what I want/need. Well I decided to put klipper on my Ender 5+ and that works great. I also added that to my Repetier server and that also works great. Everything prints fine. Now I want more lol.

I got a USB adxl345 today and went through all the setup. I flashed it with the appropriate klipper firmware and it shows up as a klipper USB device in the serial devices.

What I did to the adxl345:

Flashing out/klipper.uf2 to 2e8a:0003

sudo lib/rp2040_flash/rp2040_flash out/klipper.uf2

[sudo] password for pi:

Loaded UF2 image with 107 pages

Found rp2040 device on USB bus 1 address 19

Flashing...

Resetting interface

Locking

Exiting XIP mode

Erasing

Flashing

Rebooting device

pi@fluiddpi:~/klipper $ ls /dev/serial/by-id/*

/dev/serial/by-id/usb-Klipper_rp2040_45503571290F4C68-if00

According to the directions (using fluidd at least) you add the following scripts to the printer config:

[mcu btt_adxl345]

serial: /dev/serial/by-id/usb-Klipper_rp2040_btt_acc-if00

[adxl345]

cs_pin: btt_adxl345:gpio9

#spi_bus: spi1a

spi_software_sclk_pin: btt_adxl345:gpio10

spi_software_mosi_pin: btt_adxl345:gpio11

spi_software_miso_pin: btt_adxl345:gpio8

axes_map: -x,-y,-z

[resonance_tester]

probe_points: 100, 100, 20

accel_chip: adxl345

The problem is if I have the pins defined klipper reports a printer problem. If I comment out all the pin lines it is fine again.

Is there somewhere else I need to put this address for Repetier server to use this device?

I did try just plugging it in and leaving the follow as is:

[mcu rpi]

serial: /tmp/klipper_host_mcu

[adxl345]

cs_pin: rpi:None

[resonance_tester]

accel_chip: adxl345

probe_points:

100, 100, 10 # an example

But when I start input shaping it just says:

No data for x axis found - skipping axis.

No data for y axis found - skipping axis.

Any help at all would be nice. I would love to be able to use this with Repetier server without having to run wires and connect to my Pi that is enclosed in a case.

Repetier

You also need a section
[input_shaper]

to make server see you support input shaper and then you should see the entry to run and analyse input shaping in klipper menu.

opy01

I have that and I see the support. When I click on start input shaping, it asks for my axis and start/end frequencies and then does nothing. I have Python 3.12 installed and set as my default. I followed the instructions in the manual for installing and reinstalling input shaper but kept seeing this:

Looking in indexes: https://pypi.org/simple, https://www.piwheels.org/simple</div><div>  Link requires a different Python (3.7.3 not in: '>=3.8'): https://files.pythonhosted.org/packages/50/e1/9b0c184f04b8cf5f3c941ffa56fbcbe936888bdac9aa7ba6bae405ac752b/numpy-1.22.0.zip (from https://pypi.org/simple/numpy/) (requires-python:>=3.8)

Link requires a different Python (3.7.3 not in: '>=3.8'): https://files.pythonhosted.org/packages/0a/c8/a62767a6b374a0dfb02d2a0456e5f56a372cdd1689dbc6ffb6bf1ddedbc0/numpy-1.22.1.zip (from https://pypi.org/simple/numpy/) (requires-python:>=3.8)

Link requires a different Python (3.7.3 not in: '>=3.8'): https://files.pythonhosted.org/packages/e9/6c/c0a8130fe198f27bab92f1b28631e0cc2572295f6b7a31e87efe7448aa1c/numpy-1.22.2.zip (from https://pypi.org/simple/numpy/) (requires-python:>=3.8)

Link requires a different Python (3.7.3 not in: '>=3.8'): https://files.pythonhosted.org/packages/64/4a/b008d1f8a7b9f5206ecf70a53f84e654707e7616a771d84c05151a4713e9/numpy-1.22.3.zip (from https://pypi.org/simple/numpy/) (requires-python:>=3.8)

Link requires a different Python (3.7.3 not in: '>=3.8'): https://files.pythonhosted.org/packages/f6/d8/ab692a75f584d13c6542c3994f75def5bce52ded9399f52e230fe402819d/numpy-1.22.4.zip (from https://pypi.org/simple/numpy/) (requires-python:>=3.8)

Link requires a different Python (3.7.3 not in: '>=3.8'): https://files.pythonhosted.org/packages/33/ad/fc5e3fd1077622b2b32fc3fd36176b36475b63da486eb5578d7f8fb2af29/numpy-1.23.0rc1.tar.gz (from https://pypi.org/simple/numpy/) (requires-python:>=3.8)

Link requires a different Python (3.7.3 not in: '>=3.8'): https://files.pythonhosted.org/packages/7b/bc/05e61801a3689f81c8569c057c61fd1d302e989be5c96f6ce7acee46250a/numpy-1.23.0rc2.tar.gz (from https://pypi.org/simple/numpy/) (requires-python:>=3.8)

Link requires a different Python (3.7.3 not in: '>=3.8'): https://files.pythonhosted.org/packages/a2/bf/1502d20b4a7f5d5f74c5242748834aaf8cd6ff7cb40b7c64ef58ba47a751/numpy-1.23.0rc3.tar.gz (from https://pypi.org/simple/numpy/) (requires-python:>=3.8)

Link requires a different Python (3.7.3 not in: '>=3.8'): https://files.pythonhosted.org/packages/03/c6/14a17e10813b8db20d1e800ff9a3a898e65d25f2b0e9d6a94616f1e3362c/numpy-1.23.0.tar.gz (from https://pypi.org/simple/numpy/) (requires-python:>=3.8)

Maybe it has something to do with this:
Using pip 24.0 from /opt/klipper/Ender_5_Klipper/klippy-env/lib/python3.7/site-packages/pip (python 3.7)

That being said, I have a Pi running Fluidd and was able to do everything on that Pi and copied it over. So I know the script works in the printer.config and I know the accelerometer works.

I then put those settings in the Repetier server printer config and it seems to work. I just can't run input shaper on Repetier server.

Repetier

What we run I guess is

${PYTHON_DIR}/bin/pip install -v numpy

which installs numpy. And it looks like you have an old linux with python 3.7 while at least 3.8 is required. Lastest image uses Python 3.11.2 so there it should work. Alternatively installing python2 version on old image might work since it gets no updates any more.

opy01

I was afraid of that. I really didn't want to reinstall Repetier image as my Pi is enclosed in my Ender 5+ housing (replaced my Ender 5+ LCD with a Pi screen).

I did update Python and when I run python --version it says 3.11.8. I also updated the python3 version.

Was this supposed to be done somewhere other than /usr/bin?

opy01

Ok I did not want to do this, but I am installing a new image. Luckily I have spare SD cards so I can just set the existing one to the side. I backed up my printer configs. I'll let you know how it goes.

Repetier

You can also put old sd card on usb sd card reader to copy /var/lib/Repetier-Server and /opt/klipper to start with old settings, also you still need to reinstall klipper so automatic start scripts get installed as well.

opy01

I keep getting flash failed on multiple SD cards with the latest download. I flashed Fluidd just fine with this card reader yesterday. I am proceeding anyway since it is just a validation, but it does worry me a little.

opy01

This is why I hate using a new image. I cannot use my mouse on this as it is not visible and I have to click around to see where it is. The touchscreen does not work. I cannot connect to my home wifi even though I chose the SSIS and put the correct password. I cannot access the AP it is broadcasting (RepetierServer) because the 12345678 password does not work.

Took me a good hour to get the wifi working. Finally had to edit the network config file and tell it no authentication. Now to get through the rest of this lol.

opy01

Ok now the only think is the touch screen. I enabled it in repetier-setup but it does not work. Only once did the calibration screen show up but no points showing me where to touch. If I slap the other SD card back in the touch screen works. So I know it is not a hardware issue.

Any advice for this?

In the mean time, I am installing klipper and restoring my printer from back. I will try to get image scaler working.

opy01

Getting this now:

###### Install numpy ######

Using pip 23.0.1 from /opt/klipper/Ender_5_Klipper/klippy-env/lib/python3.11/site-packages/pip (python 3.11)

Looking in indexes: https://pypi.org/simple, https://www.piwheels.org/simple</div><div>  Link requires a different Python (3.11.2 not in: '>=3.7,<3.11'): https://files.pythonhosted.org/packages/3a/be/650f9c091ef71cb01d735775d554e068752d3ff63d7943b26316dc401749/numpy-1.21.2.zip (from https://pypi.org/simple/numpy/) (requires-python:>=3.7,<3.11)

Link requires a different Python (3.11.2 not in: '>=3.7,<3.11'): https://files.pythonhosted.org/packages/5f/d6/ad58ded26556eaeaa8c971e08b6466f17c4ac4d786cd3d800e26ce59cc01/numpy-1.21.3.zip (from https://pypi.org/simple/numpy/) (requires-python:>=3.7,<3.11)

Link requires a different Python (3.11.2 not in: '>=3.7,<3.11'): https://files.pythonhosted.org/packages/fb/48/b0708ebd7718a8933f0d3937513ef8ef2f4f04529f1f66ca86d873043921/numpy-1.21.4.zip (from https://pypi.org/simple/numpy/) (requires-python:>=3.7,<3.11)

Link requires a different Python (3.11.2 not in: '>=3.7,<3.11'): https://files.pythonhosted.org/packages/c2/a8/a924a09492bdfee8c2ec3094d0a13f2799800b4fdc9c890738aeeb12c72e/numpy-1.21.5.zip (from https://pypi.org/simple/numpy/) (requires-python:>=3.7,<3.11)

Link requires a different Python (3.11.2 not in: '>=3.7,<3.11'): https://files.pythonhosted.org/packages/45/b7/de7b8e67f2232c26af57c205aaad29fe17754f793404f59c8a730c7a191a/numpy-1.21.6.zip (from https://pypi.org/simple/numpy/) (requires-python:>=3.7,<3.11)

Collecting numpy

opy01

I just don't think it is seeing my USB adxl345.

--2024-02-27 20:46:22-- http://download1.repetier.com/files/server/extras/inputShaping.sh</div><div>Resolving download1.repetier.com (download1.repetier.com)... 94.130.164.39

Connecting to download1.repetier.com (download1.repetier.com)|94.130.164.39|:80... connected.

HTTP request sent, awaiting response... 200 OK

Length: 1253 (1.2K) [application/octet-stream]

Saving to: '/tmp/inputShaping.sh'

/tmp/inputShaping.s 100%[===================>] 1.22K --.-KB/s in 0s

2024-02-27 20:46:22 (57.8 MB/s) - '/tmp/inputShaping.sh' saved [1253/1253]

No data for x axis found - skipping axis.

No data for y axis found - skipping axis.

This is the one I have:
https://a.co/d/gDIN6lc<br/></div>

opy01

Still cannot get the touchscreen to work.

We will now start touch screen calibration. Make sure that no

screensaver is active. You need to touch 4 marked points in order

and then come back to this display.

Press any key to continue

/usr/local/Repetier-Setup/bin/repetier-setup: line 245: xlibinput_calibrator: command not found

The new calibration should be active now.

Please test if calibration is now good and then make it permanent

Press y to make it permanent, any other key to not store it permanently.

opy01

I can't even putty to the new server.

opy01

Ok I am going to try V36 tomorrow. Not sure if something is just flaky with V37 since it is set up for the Pi 5. Hoping that's all it is. I put my old SD card back in and am up and running again, just cannot run image shaper to get the settings. I got the settings from Fluidd and put those in my config but I am not 100% sure if image shaper correctly installed everything and if that matters while printing.

But to sum up, the adxl345 is still not working on the new version still and I have no touch screen. I also could not putty into it. There was a certificate error that I've never gotten before with your images. I do hope to get it running because my old image has the incognito browser window every time I power up the Pi. I have to go to console and do a sudo reboot to get to the Repetier screen. Just rebooting from the gui menu does not fix it.

Repetier

I thought the input calibration was fixed in the image already. Seems I have it only for next image release coming soon.
In repetier-setup there is also a show cursor option to use mouse so you see it.

Can't say why checksum mismatches. Must be a higher sector that is not used in fluidd image.

Regarding error messages after running input shaper, they appear if the files
/tmp/calibration_data_x_data.csv
/tmp/calibration_data_y_data.csv
do not exist. The should get created by running klipper command
SHAPER_CALIBRATE AXIS=X NAME=data + some options for freq range, hz

You can send it manually in console and see what goes wrong on klipper side that the file does not exist afterwards. It stores result in /tmp according to klipper docs.

opy01

Ok I loaded V36 with no validation errors after flashing the SD card. Set my wifi up in the wpa suplicant file and it connected. So far so good. I had issues with touch still but found on an octoprint forum that I needed to com ment out dtoverlay=vc4-kms-v3d.

I will work on Klipper now :)

opy01

update on input shaper. I ran the comment "TEST_RESONANCES AXIS=X" just to see if the eccelerometer works in Repetier and my results are below. I am not sure how Repetier recognized my USB adxl345 or if there is a way for my to specify it somewhere. running acclerometer_query also does the same thing.

Recv:12:34:36.332: // Invalid adxl345 id (got 0 vs e5).

Recv:12:34:36.332: // This is generally indicative of connection problems

Recv:12:34:36.332: // (e.g. faulty wiring) or a faulty adxl345 chip.

opy01

It looks like the rpi/klipper_host_mcu adxl345 is only the on board pins on the Pi. So this USB adxl345 seems to be either something different in the rpi/klipper_host_mcu or the pins are not accepted by either Klipper or Repetier when assigning the mcu to the /dev/serial/by-id/usb-Klipper_rp2040_455035712911B2C8-if00 and specifying cs_pin gpio9.

Is there another way of identifying it since it is a USB device?

opy01

I GOT iT! The pins I had in the original post were correct. I flashed the adxl345 on my other Pi with a different version of Klipper. I finally found an error message I could use lol. I created a new file for the adxl345 ad flashed it from Repetier and it works! I did not realize the adxl345 needed the same version.

Hopefully this will help someone else :).