Running ODROID-C4/N2 with 3D printer

[tobetter]

The original project is to use ODROID-N2Plus for the 3D printer contol, two 3D printer controller board have been assembled for ODROID-N2 and ODROID-C4. Today, I've run ODROID-C4 with my Ender-3 to see if it's capable to run using Klipper and got to know it's fair enough so far. Most CPU hungry process in this setup is klipper_muc at the first row which actually controls steppers and sensors, even this process eats CPU hardly more than 15%. In contrast, Python script - Klipper and service apps are not busy.

Screenshot from 2021-01-26 22-38-28.png (460.49 KiB) Viewed 433 times

The 3DBenchy has been printered at 150mm/sec after several layers at 50mm/sec.

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[hominoid]

So it looks like you got the rest of the electronics working on your control board and with the C4, that's good progress!

[tobetter]

So it looks like you got the rest of the electronics working on your control board and with the C4, that's good progress!

Likely, I've run the same set up more than 5 hours to print a couple of things and the last thing while recording the previous video is just finished now.
Just in case, if you are planning to install and use Klipper, you can follow up the instruction in the link on ODROID-N2/C4.
viewtopic.php?p=319026#p319026

This is printed at 150mm/sec.

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[hominoid]

I do want to give klipper a try on my c4, I haven't yet. I'm evaluating whether to upgrade my current printer or build a new one. I was also kinda waiting to see how this project turned out because I might like to do something similar. If I do, starting with a new build to take advantage of the speed and accuracy capability of a sbc driven printer would be my preference. Getting to start with a clean slate with a new design is certainly appealing. if I upgrade, I think I might regret not having kept around my prusa i3 v1 I built all those years ago.

[rooted]

Those prints look great, I've been wanting to try klipper for this awesome feature since ghosting or ringing is such a problem at high speeds.

https://www.klipper3d.org/Measuring_Resonances.html

[tobetter]

Those prints look great, I've been wanting to try klipper for this awesome feature since ghosting or ringing is such a problem at high speeds.

https://www.klipper3d.org/Measuring_Resonances.html

I've seen this in Youtube, https://www.youtube.com/watch?v=Q4OGfAHRnhY, later I consider to build the PCB, but the 3-Axis board is in my shopping cart already and will try later.

[tobetter]

I do want to give klipper a try on my c4, I haven't yet. I'm evaluating whether to upgrade my current printer or build a new one. I was also kinda waiting to see how this project turned out because I might like to do something similar. If I do, starting with a new build to take advantage of the speed and accuracy capability of a sbc driven printer would be my preference. Getting to start with a clean slate with a new design is certainly appealing. if I upgrade, I think I might regret not having kept around my prusa i3 v1 I built all those years ago.

I would take the word "SBC DRIVREN PRINTER".
Personally, I would go for Voron if my budget permits and want to try with ODROID as well. As of now, I would like to try more stable hardware with this ODROID print setup.

[rooted]

I do want to give klipper a try on my c4, I haven't yet. I'm evaluating whether to upgrade my current printer or build a new one. I was also kinda waiting to see how this project turned out because I might like to do something similar. If I do, starting with a new build to take advantage of the speed and accuracy capability of a sbc driven printer would be my preference. Getting to start with a clean slate with a new design is certainly appealing. if I upgrade, I think I might regret not having kept around my prusa i3 v1 I built all those years ago.

I would take the word "SBC DRIVREN PRINTER".
Personally, I would go for Voron if my budget permits and want to try with ODROID as well. As of now, I would like to try more stable hardware with this ODROID print setup.

When my funds are adequate I plan on building a HevORT, similar to Voron in price. CoreXY is definitely the way to go.

https://youtu.be/ibsBiALMMSE

[tobetter]

I do want to give klipper a try on my c4, I haven't yet. I'm evaluating whether to upgrade my current printer or build a new one. I was also kinda waiting to see how this project turned out because I might like to do something similar. If I do, starting with a new build to take advantage of the speed and accuracy capability of a sbc driven printer would be my preference. Getting to start with a clean slate with a new design is certainly appealing. if I upgrade, I think I might regret not having kept around my prusa i3 v1 I built all those years ago.

I would take the word "SBC DRIVREN PRINTER".
Personally, I would go for Voron if my budget permits and want to try with ODROID as well. As of now, I would like to try more stable hardware with this ODROID print setup.

When my funds are adequate I plan on building a HevORT, similar to Voron in price. CoreXY is definitely the way to go.

https://youtu.be/ibsBiALMMSE

HevORT is like Linux with PC while Voron is Apple to me, I perfer to have more fancy one. I've ordered the accelometer sensor board and will see I can run it in this weekend.

[rooted]

HevORT is like Linux with PC while Voron is Apple to me, I perfer to have more fancy one. I've ordered the accelometer sensor board and will see I can run it in this weekend.

I look forward to your results.

[hominoid]

The Voron and HevORT are really nice designs that are very capable. What is garnering my attention is the ramification of the fixed or movable bed or gantry. I'm still evaluating each approach so I don't have an opinion or preference yet.

[tobetter]

My Ender-3 becomes more fancy and ODROID-C4 with my printer board doing great job. All orange colour parts are printed in this printer, it's printing about at 150mm/s. I am printing a board to mount SKR 1.3 to run by ODROID-C4 in order to compare if the performance is different with ODROID-C4 driven printer. In addition, I am about to release a bare minimal Klipper image for ODROID-C4 in a week.

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[rooted]

It should be an interesting comparison, although I don't believe you will have any issue printing 150mm/s with the SKR I'm interested in the quality differences.

[tobetter]

It should be an interesting comparison, although I don't believe you will have any issue printing 150mm/s with the SKR I'm interested in the quality differences.

Ha....
I had the same question and took SKR 1.3 from my CR-10 and attached to new one with ODROID-C4. To be honest, I expected some differences for comparision but quality wise it's not quite different. Klipper is really doing good and ODROID-C4 has enough performance room.

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[rooted]

I think once you pair Klipper with the accelerometer there will be noticeable differences

[tobetter]

I think once you pair Klipper with the accelerometer there will be noticeable differences

Have you done this with your printer?
SKR 1.3 is also running by Klipper, maybe comparing with stock board would be noticeable...

[rooted]

I think once you pair Klipper with the accelerometer there will be noticeable differences

Have you done this with your printer?
SKR 1.3 is also running by Klipper, maybe comparing with stock board would be noticeable...

No my printer doesn't support klipper currently and I've not replaced the board with the SKR Pro yet.

I keep track of a few people who run klipper using the accelerometer and the difference it makes is amazing.

[tobetter]

New part ADXL345 has been added to ODROID-C4 and had performed resonance test, it's a bit confusing and difficult part since I've run Klipper on my printers. And it looks like it would take long time to get decent measurement figures. So...I've just performed a couple times for X and Y axis and got the graphs as below. The tool recommened a different resonance values and after applying them to the Klipper configuration, don't know if it's properly applied or not, but feeling a bit shaking smoother even higher acceleration.

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shaper_calibrate_y.png (170.48 KiB) Viewed 268 times

[tobetter]

I've finally built an OS image for ODROID-C4 to run Klipper and uploaded to here. This image installs required modules, Klipper/Moonraker/Mainsail/KlipperScreen, so you can run Klipper after finishing the basic Klipper configuration.

What's different with the official instruction guide of Klipper.
1. All services are debianized, update can be managed by apt update.
2. Klipper configuration file is located /etc/klippy_config/printer.cfg.
3. Very first Klipper configuration for your 3D printer board can be selected using /usr/sbin/klipper_config.
4. No need to compile the Klipper MCU firmware, it's already compiled for many CPUs and provided in /usr/sharel/klipper/firmware/*
5. KlipperScreen is already installed and run by default, can be display to HDMI.

[rooted]

Awesome job. You have just made it easy to get started using klipper from the C4, I'm very thankful for what you have done and will be sharing it with the 3D printing community.

I'm blown away.