My company is flexible, but ultimately this is not my printer and I want to ask permission to undertake maintenance. For all I know, whoever ordered it in the first place is in fact in charge of it, or maybe they want a 3rd party to do it. It's just a matter of talking to the boss and making sure what I'm about to do is approved 🙂
Turn this (ramping lift) Off/On or tweak the settings
Before doing any of that, I'll run several prints of the new parts layout that aren't quite so close to the edges of the bed. The one currently printing is going well so far.
I really have a strong hunch that it's just a matter of not using quite as much of the bed surface as PrusaSlicer thinks is usable safely.
This is the company's printer. I'll have to get the expense approved first.
Assuming it needs servicing of course: I have to keep cranking out these adapter plates as fast as possible right now, and something tells me not going so close to the edges of the bed will help. It wouldn't be the first firmware bug I hit in this printer...
No surprise. All revolutions that start with noble ends for freedom and equality invariably end up becoming dictatorships themselves. Sometimes it takes 249 years, but they all go sour eventually.
What's headed this way is no more of anything, as everything is made in China, nobody in the US manufactures what China manufactures anymore, nobody in the US wants to take up China's low-skill manufacturing jobs, and it would take years to rebuild factories in the US that would make the stuff China makes - assuming anybody even wants to invest in machine tools and production equipment that is itself sold by China with kajillion percent tariffs.
Get ready to live in a poor country that repairs existing stuff a lot, Cuba-stylee, if the orange utang and his henchmen aren't ousted soon.
The idler is gripping the filament just fine. I know that because I have to loosen it when I print really soft TPE and I tighten it back up and readjust the idler pressure when I print PLA or PETG - and I did that a few days ago.
The belts might be getting loose though. I haven't checked them. They look tight but the printer has a lot of mileage, so I guess it's worth checkout out. But the re-print I just did of the same bgcode just completed fine.
Their pressure seems to have helped Harvard President Alan Garber stand up to Trump
No: what helps Harvard stand up to Trump is that Harvard is loaded. The University of Bumfuck Nowhere will immediately cave in to Trump's authoritarian nonsense to maintain their federal funding and their tax-exempt status. Harvard can afford to do without them.
In other words, I'm glad Harvard is resisting. But this is yet another example of rich-man-can-do.
If it was a nozzle hit, it was a violent one: this was 8 separate parts printing on the same plate and all 8 parts were similarly shifted - meaning the plate itself had shifted underneath, or both motors skipped or lost their origins. So I don't think the nozzle hit anything.
The filament is PETG, but I don't think it matters. The prints don't lift off the bed because I use glue.
The plate does indeed stick very strongly against the bed. The magnets are fine.
The most plausible explanation I have is that someone stuck their hand in the enclosure for some unexplainable reason and the bed hit their arm or something. The only problem with this theory is, there is zero reason for anybody to do that. But I did start the print early enough for a few people to still be at work when it happened.
Other than that, I've taken to using glue on the plate lately, because I've had adhesion problems. Maybe some leftover glue turned liquid-ish and degraded into some sort of lubricant with the heat (I'm printing PETG with the bed heated at 85C) and it seeped between the bed and the plate. I've never felt it was ever slippery though.
Or it was some leftover water that steamed over between the bed and the plate and lifted the plate for a second, air-hockey stylee.
None of this seems very likely though. So I cleaned the bed and the plate real thoroughly, installed the plate tight against the registration pins, upgraded the firmware to the latest for good measure, slathered glue super-carefully all over the plate, making sure it didn't go overboard, and started the same print once more. I'm watching it remotely through the webcam I installed in the enclosure and it seems to be going fine.
It's a major blow for forgetful frequent flyers too: giant Toblerones are famously what you can always find in any airport to buy someone you completely forgot to buy something for and pretend you didn't forget.
My company is flexible, but ultimately this is not my printer and I want to ask permission to undertake maintenance. For all I know, whoever ordered it in the first place is in fact in charge of it, or maybe they want a 3rd party to do it. It's just a matter of talking to the boss and making sure what I'm about to do is approved 🙂