So I'm following this DIY sand cnc table project and I ran into a hiccup where the serial port won't connect.
I'm using windows, with a raspberry pi 3, The octoprint I'm using is 1.10.3 and the 1.7.6 better grbl. I was in the d.i.y discord, but no one is replying and most of the past solutions aren't working...
I've ran safe mode with no affect
octoprint-systeminfo-20241205071315.zip (76.7 KB)
Hello @DracoSimia !
What one?
The template you deleted asked for some more information. Without them, we are more clueless than you.
Apologies I can't really post alot of links but its this tutorial series :https://www.youtube.com/watch?v=GuPOcx9w6Vc&t=1200s
Everything else works fine but when I try to connect to the serial port I get the no port connection. Others said to use older versions, safe mod, but those methods aren't working. Most of the other solution seems to be linux or mac user who have a entire different way of approaching this situation.
What printer board do you use?
What firmware on that board?
I'm using a arduino uno, the board I think you're talking about is a raspberry pi 3, and any other small board is a arduino nano. The firmware should be the latest raspberry pi imager 1.8.5 with the stable octopi OS downloaded to a 32 gb sd card.
Programs I used for the Arduino's is Arduino ide, raspberry pi imager 1.8.5 for the raspberry-pi3 and then octoprint which isn't connecting. I have better grbl 1.7.6 because the latest one had issue, and most likely the latest update for the octoprint.
I meant the board where the stepper motors are connected to.
And the firmware on that board. That has at least to be Marlin.
Ah I'm using this thing then "HiLetgo 2pcs A4988 V3 Engraver Drive Shield 3D Printer CNC Drive Expansion Board for Arduino 3D Printer CNC," its sitting ontop of the arduino uno, I have it wheres it pushed down well onto the ports in the Uno. The firm ware is this grbl file from his github thats was downloaded into the Uno: Kinetic-Sand-Art-Table/Arduino at main · DIY-Machines/Kinetic-Sand-Art-Table · GitHub
Can you share an image of the connection between the PC and your Arduino.
Are you sure your cable is good ? is it the cable you used to flash the firmware?
Is your arduino app still open.. Only of of the apps. can talk to the board at a time.
Either OctoPrint or Arduino. Be sure you do not have the board port connected to you Arduino IDE (close the IDE) and maybe refresh the Ports list in OctoPrint.
Also are you sure the GRBL firmware is responding.. Did you test any of its responses from within the Arduino IDE?
Yes during the homing test on IDE grbl did work. When trying to connect I didn't have IDE open and running. For the cable im using a USB data transfer cable and I've been switch on both my desktop and laptop which both have the same result of no serial port found. I've tried bouncing back to the latest grbl version and its not working.
Its really hard to know what you have done so I will be asking some questions that will seem pretty simple and you may think the answers are obvious and might even feel slighted that I am asking but I want to help and since i can't look at what you have, I have to ask questions.
Is your board you are trying to connect OctoPrint to the nano or the uno? It should be the Uno.
This connection should use a USB Cable between the Uno and the Pi.
Confirm what system(pi or window pc) did you run the arduino ide to burn the firmware.
Confirm where the uno is connected when you are attempting to use it with OctoPrint. (the Pi or Windows pc)
My apologies if I come off as that, but im not trying to be I just needed to finish this for a project and stuff. Im using window 10 and octoprint isn't on the nano or uno its on the rapsberry pi 3 A+. I used the latest IDE to download the files onto the Uno(grbl) and nano(led code). Both nano and uno worked fine when tested. I did try different usb cables to plug the pi to my pc but that didn't work either. I tried to find the port through cmd prompt but when I went to do ssh it wouldn't connect to the .local server either.
