Anet A8 Plus + Robin Nano v3.1 + Marlin
January 31, 2023 05:25PM
I moved from Ramps 1.5 to Robin Nano v3.1.
Compiling the firmware works nice using VS Code. And so does motor movement.

But once I enter any temperature menu in marlin, the printer halts and needs a reset.

I tried to enter all the temperatur-sensors like in my working config from my stock config... but anyway something went wrong.
I attached screenshots of the version of Marlin I used (freshly doenloaded 3-4 days ago), my bed-sensor value (-15) and the error that occurs.

The bed sensor pullup resistor might be different - but I couldn't find a BOM for Robin Nano v3.1.
How could I figure out the right sensor settings for bed and nozzle-temperature?
Attachments:
open | download - Config_RobinNanoV3.1.zip (83.5 KB)
open | download - Config_stockMainboard.zip (85.4 KB)
open | download - 20230131_230120.jpg (346.6 KB)
open | download - 20230131_230144.jpg (364.2 KB)
open | download - 20230131_230156.jpg (375 KB)
Re: Anet A8 Plus + Robin Nano v3.1 + Marlin
January 31, 2023 05:38PM
Just figured out I connected the bed to TH1 and extruder to TH2. But bed needs to be connected to TB1, extruder needs to be connedted to TH1. Looks like it is working now without freezing-beep grinning smiley

Edited 1 time(s). Last edit at 01/31/2023 06:38PM by cysign.
Re: Anet A8 Plus + Robin Nano v3.1 + Marlin
January 31, 2023 05:41PM
Just heated the bed to 50°C and the hotend to 101°C but both FANs on the hotend are not running.
But heating works so far smiling smiley

Fans are connected to FAN1 and FAN2.

Edited 1 time(s). Last edit at 01/31/2023 05:47PM by cysign.
Re: Anet A8 Plus + Robin Nano v3.1 + Marlin
January 31, 2023 06:11PM
FAN1 doesn work now. I had to swap red and black wires and I activated
#define NUM_M106_FANS 2
But FAN2 still is off.

Might this be a config-issue?

Edited 2 time(s). Last edit at 01/31/2023 06:38PM by cysign.
Re: Anet A8 Plus + Robin Nano v3.1 + Marlin
January 31, 2023 07:48PM
Try enabling E0_AUTO_FAN_PIN and setting it to FAN1_PIN. That'll enable the extruder cooling fan.

I don't think that your NUM_M106_FANS change had anything to do with the part cooling fan becoming operational.
Re: Anet A8 Plus + Robin Nano v3.1 + Marlin
February 03, 2023 02:25PM
Thanks a lot, that it was smileys with beer
Re: Anet A8 Plus + Robin Nano v3.1 + Marlin
March 04, 2023 11:30AM
sorry my name is roberto and i write from Italy
i should replace the motherboard of the anet a8+ with the nano v3.
but i think i understand , that if i connect the endstops i burn the board, you have to rewire like ramps 1.4??
A thousand thanks
Re: Anet A8 Plus + Robin Nano v3.1 + Marlin
March 04, 2023 04:49PM
The nano V3 has the typical endstop connectors. They have +5V, ground and signal. Here's the pinout of the board.

What do you have for endestops?

Most endstops are a mechanical switch. The normally closed contact is tied to signal and the common is tied to ground.
Re: Anet A8 Plus + Robin Nano v3.1 + Marlin
March 05, 2023 10:47AM
hello Bob, all clear thanks for the quick reply, I thought it was like this but since in the past I fried a mks gen 1.4 precisely because of the anet limit switches, you fool me once, next time I'll get smarter lol
happy prints
Robert
Re: Anet A8 Plus + Robin Nano v3.1 + Marlin
March 05, 2023 10:54AM
ps sorry I forgot to answer you, I have the classic cheap 2-wire switches of the a8+
that I have to honestly admit that I print everything and without too many problems, but the original card is too limited in terms of memory, so I have to put the second extruder or the bltouch even the filament sensor, you always have to choose, I just want comfort
Robert
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