I noticed that it does not allow me to load TPU using the described method in the documentation by bypassing the default hubs when I installed the filament track switch. Why is that, I completely bypass all of it by going directly into the PTFE tube to the nozzle…?!? Kinda annoying to unplug it each time I want wo print from external wheter it is TPU or another filament. Just deactivate the FTS whe nloading from external spool should work or am I missing something?
Which printer is “it?” Which nozzle are you trying to print to? What TPU hardness is your filament? What error is displayed?
You left a lot of helpful information out about your setup.
Is your printer the H2C? You chose the H series category. So I assume not the X2D.
If it isn’t either of these, the issue is likely a lack of compatibility currently until new firmware is available.
Yes I mean H2C but should be for all printers which have track switch compatibility right now. TPU hardness shouldn’t play any role here because it has nothing to do with the printer not loading any filament from external when track switch is installed. Bot left or right nozzle cannot load any filament from external on my side when FTS is installed. I assume lack of compatibility too but its annoying anyway.
Yeah this is clearly a software limitation, and not for any good reason. Presumably they will fix this. I do hope “filament track switching” becomes a thing so that Bambu invests in both more optimized software, and the actual hardware we need (2-output AMS units, 8-to-2 FTS, and such).
it also tells you to cold pull if you try to print tpu. for someone running half a dozen machines and tpu exclusively, id like the option to opt out of the notification. its slowing down my production!
I really want them to fix this. I bought FTS for my H2C so I don’t have to change the AMS2 mounted on the right nozzle to the left nozzle every time I’m printing 85A TPU. The TPU is mounted directly on the right nozzle so there is no reason for them to prevent this. I understand the reason why they are blocking external spool using FTS but TPU use case needs to be an exception since it’s not going through FTS.
I get the same notification when trying to print Tpu 95A HF with my X2D through the tpu feed assist module, it’s so annoying.
If you’re saying the machine is denying you the ability to do it, you can workaround the software by just lying to it and say its pla. Copypaste the TPU profile’s everything and just rename it and select type PLA, and see what happens.
You didnt mention brand of tpu but if your TPU is wavy and irregular and looks like curly hair – it wont go thru tubes nicely, and will likely jam everything, so only do this with smoothwalled TPU filament.