What is the proper way to add two 3D printer into HA?

Configuration
1

i have an Ender3 and Ender3 v2 and planning to have them in 2 tabs as seen here
image

do i use this config?
image

or add from the Integration page?
image
because when i add from Integration page, i see wheels spinning none stop
image

i do have MQTT in the Octoprint for both machines. topic octoPrint and octoPrintv2 for both machines

image
image935×437 19.3 KB

strangely, HA sees them as being the same on this URL http://192.168.1.229:8123/config/devices/device/1ce6269ab66cff4c6cc2adcb97a5ed9f
meaning this page has values even when machine 1 is off, machine 2 is on.
when machine 2 is off, and machine1 on, i see values on the same URL. i thought 2 machines would have 2 separate URL
image
image1203×860 84.3 KB

2

And, have you then gone to Octoprint to allow access as described in the documentation?

3

ok. i see what happened now.
1st printer was added into HA via MQTT. my mqtt auto discovered printer1.
i installed octoprint on another rpi. i was too lazy to config octoprint on printer 2, so i exported a backup of octoprint from printer1 and import into printer2… so printer2 should be exactly the same as printer1.
according to your document link, i should change the upnpUuid value. i changed but that somehow does not affect mqtt in any way…

4

I haven’t actually considered integrating OctoPrint via MQTT, because the direct/API based integration works very well for me.