So… One print job had just finished, so I removed the print and sent the next print job and shortly after, noticed from the camera that there was a long gob of PETG hanging from my hot end. So I go to the printer, tweezers in hand, and find the following dangling from the remainder of the nozzle (which is not damaged in any way).
It had not yet done the nozzle-clean sequence, so it didn’t get broken off - it looks like it must have been pushed off by the force of the extruded PETG. Very odd. Anyway, I have the spare hot-end/nozzle assembly that came with the printer 2 weeks ago, so no biggie, but a bit worrying as I see others have had similar experiences. Ho-hum…
Yes, you can use the spare one as a remedy. Note that they are different materials (stainless/hardened steel). And that you need to assemble it.
This is unexpected; it is the first time seeing the BL nozzle out of the heartbreak. When you pull out the filament with tweezers, the nozzle should stay in place. If the filament is stuck, you must heat up.
In a new printer request a new hotend.
By the way, you may explore it as you have it open. What is the cause for the dents on the nozzle lateral?
I would guess that’s a defective part. If it was a pressed in manufacture, just seems weird that it can be pushed out with extruder force. Ideally they would replace it and you can just use you backup nozzle until they do, but you’ll need to deal with them on it.
There are no dents in the tip, as such - just some unevenness in the surface quality - possibly where it is pressed into the nozzle/hotend assembly? What looks like it might a dent is just the way the light is reflecting.
@JayZay : I am in two minds about contacting support: I have a low tolerance for being messed about, and I would rather just buy a couple of more spares - accidents happen and as long as it’s a rare issue, I’m happy to take the small hit. On the other hand, they should be told that this is a potential issue with some of their stock, but I have no confidence that anyone will actually take the time to do any QA on their existing stock even if I did report it, so…
I’ve actually taken advantage of the issue and fitted the 0.6mm nozzle that I wanted to try out anyway
The most important is that it works for you.
I’ve dealt with customer support, and they take a couple of days to answer a message (already expected e explained by the company). Besides, you should follow their protocol for replacement under the warranty period, which consumes some of your time preparing and submitting the required issue details. It is only one time if you do it right.
Besides that, there was no messing or questioning. They were quite polite
and after receiving the required info, they just sent a replacement.
If you can, please share some images on you’re tweaking, maybe better trough posting in another forum, as I am curious to see.
