Octopi not working for 3D printer Marcus

[JackiePease]

Octopi unable to connect to the printer. The following messages are being displayed:

No serial port found, are you sure your printer is physically connected and supported? Try refreshing and if that doesn't help please see the FAQ.

Could not autodetect your printer
No working connection parameters could be found. Are you sure your printer is physically connected and supported? Refer to the FAQ for help in debugging this.

No more candidates to test, and no working port/baudrate combination detected.

[JackiePease]

Apparently there is a known intermittent issue with the USB connection between the pi and the printer. Moving it around might help.

[magman2112]

I took the controller apart on this printer and couldn’t see any bad solder connections, so I suspect that the USB connector has failed internally.

Given that the SD card has failed on this board as well, I would suggest that we source a replacement controller to get this printer working again, then look at fitting some replacement parts to keep this original controller as a spare.

The specific controller for this printer is a Creality 3D V4 5.3.

I found a few UK based suppliers, but non appear to have this board in stock at present. I did find a vendor selling this controller on Alibaba, which is not a bad price. Other overseas suppliers are looking for $70-90 for this controller, so at £33.99 + £1.83 shipping, the item below looks to be a good option.

https://www.aliexpress.com/item/1005007406219810.html

[JackiePease]

I've ordered the board from AliExpress. Delivery March 5 - 12. Total cost £42.61 inc. shipping and 20% VAT

[JackiePease]

Estimated delivery date for the board is 12 March