#3dprinting @3dprinting@lemmy.world @3dprinting@techhub.social does anyone have experience with the manta m8p motherboard and canbus? I’m pulling my hair out trying to work out what’s going on with mine and could really use a little help
I’ve got a Manta M8P running with the CB1 - what problems are you having? Need a little bit more detail, explained here in your original post - so that we know what we’re dealing with.
@thantik ok so the manta is all wired up and itself seems to be working well. I had all it running for a couple of days getting various things working which meant it was rebooted or power cycled a lot and always reconnected using the ID
But then I went to setup the Hotend canbus which is using the ebb sb2240
Flashed both the ebb and the manta to use canbus, changed the printer.CFG to use their canbus IDs and klipper connects and works fine
After a reset or power cycle though, it won’t connect again and won’t recognise the board until I reflash it
Google comes up with a number of posts of similar issues, most just with answers saying how to flash it correctly or no answers at all
This is my first self built printer, it’s a voron 2.4, but I’ve heavily modified my old ender 3 with klipper, just never anything with canbus so I’m probably just messing something up
So upon reboot, is the CB1/Pi seeing/activating the CAN0 interface? First thing is to check is if the ID is changing, or if something is changing between power cycles.
The other thing I’d be concerned about is maybe the boot/programming button being sticky and when you’re rebooting it’s putting the board into programming mode each time? You could be flashing it, and it firing up after the flash, but power cycle putting it back into programming mode.
@thantik how do I go about that? The command the guide gave to get the serial ID only gives un adopted ones, so even on that first boot that works, they disappear
The cb1 itself is working fine on reboot as I can SSH to it and even load klipper, it just gets the MCU error.
The only way I can get any response from the board is to put it back into DFU mode and flash it again, when I do that, it gets the exact same id as the first time and connects again until reboot
Does your
ifconfigshow a can0 device? After flashing? After reboot?@thantik no, it does not. And I just realised that running the same canbus query script throws an error that I didn’t see before, saying no such device
The /etc/network/interfaces.d/can0 file is there and correct though
And /etc/network/interfaces.d/can0 Looks a bit something like this?:
allow-hotplug can0
iface can0 can static
bitrate 1000000
up ifconfig $IFACE txqueuelen 128Sorry, Lemmy is mangling the shit out of formatting.
It sounds like the CANBUS board might have some sort of defect, tbh.
@thantik yup, it’s identical other than the mangled mastodon indent haha
So just to check, when I reflash the board, it does show up in ifconfig but as soon as I make any changes in printer.cfg and hit save and restart, it’s now not in ifconfig
Posting as MOD:
Can you edit that title? Those tags are super useless. I know it is because of a cross platform post from mastodon, but that title implementation is so bad I would not call this a functional feature.
@j4k3 actually sorry, I just saw that my changes here on mastodon don’t reflect on Lemmy :( sorry… Feel free to delete it from your instance if it’s causing trouble
That’s… now how it works. Without tagging the community, the post doesn’t appear here. And they don’t choose the title, it’s Lemmy itself that does.
That’s about as useful as watching byte code for terminal output only uglier. The tags need to be in a hidden field somewhere, not displayed to Lemmy users. There is no title or useful information about the post displayed on the community feed. It has the aesthetics of a garbage dump with less usefulness. I think “works” is giving this bug/rough-alpha far more credit than it deserves my my opinion.
@j4k3 I wouldn’t say it’s useless, the bot boosted my post for extra visibility, but I’ve removed it for you
