Well, in my case, I just bolted an el-cheapo supermarket-bought webcam inside the printer's enclosure. It's terrible in every way: it has fixed focus and the bed of the printer isn't in the focus plane, it has terrible rolling shutter and no manual exposure control.
The webcam is connected to one of the production servers nearby that serves up the video as a MJPEG stream using Motion. It's Motion that limits the framerate to 2 fps, and I configured it that way on purpose: I just need the camera to know whether something terrible has happened to the print and I should stop it remotely - like parts lifting or coming fully unstuck from the sheet, extruder collision... I don't need quality video for that, so I chose the low framerate and poor resolution primarily to save bandwidth on my home internet, which is kind of crap because I live deep in the forest 🙂
I’m much more interested in whatever mechanical contrivance you’re printing parts for, there.
It's a bit complicated to explain, but to make it simple: the top parts are optical couplers. They have a slot and a dovetailed circular rail inside that you can't see because it's buried in the support. The bottom parts are shutters that ride in the rail and block off more or less of the light in the side of the couplers that has the rail, and have a lever on the other side. The side parts are just mounting clips to hold the couplers onto the optical measurement instruments they're meant to be mounted on.
Those parts cost cents to make and work just as good as multi-hundred dollar professional optical attenuators, and they're a lot more convenient for a quick manual adjustment that doesn't require a precise number of decibels of attenuation.
He is a liar, for sure. But I think at this point, it's become pathological, and mixed with a good dose of early senile dementia.
The things he says are so outrageous and obviously untrue and even the dumbest magat can tell he's spewing BS, but Trump doesn't even realize it anymore.
He's essentially a crooked man who's grown into an angry old man, but instead of shaking his fist at the TV in a retirement home, he's sitting in the Oval Office.
IANAL but my attorney once told me he witnessed a guy defending himself in court for involuntary manslaughter saying "I didn't see the red light because I was drunk."
So far our (new) machine is performing well. We'll see how it fares in the long run. That's one of the advantages of having my company purchase it: it's getting a beating for work purposes, so I can test it properly before buying one for myself 🙂
I'm sorry for the mistake, I tend not to make a difference between US and immigrant toddlers with stage-4 cancer when they're deported without due process.
As in, they're first and foremost human children whom the Trump regime inflicts pain and misery upon for no discernable reason.
I think the pros/cons come down to what you need a printer for. If you print mostly flat things, a bedslinger is fine. If you print large parts with sketchy bed attachments like I often do, a coreXY makes a lot more sense. You have no idea the amount of filament I wasted on giant brims and rafts to keep parts from flying off the sheet - not to mention the time it takes to print them.
And then of course, the Prusa XL in particular can be outfitted with up to 5 separate extruders. It has nothing to do with coreXY but it was a big part of why we bought it.
I haven't tried pushing the speed yet. I've been playing with multi-color and multi-material prints, as well as long tall thin prints that were kind of impossible on the Mk4. And when I'm not playing with that, I'm running it almost 24/7 because I have to produce sets of parts for our production floors asap and each set takes about 20 hours.
But soon the machine will be more available and I'll play with it some more.
That's true. The Prusa XL is larger than our Prusa Mk4 with the enclosure, but still fairly comparable. However, the XL's build volume is kind of... staggering in comparison.
The Prusa XL doesn't lack rigidity. That thing is build like a tank. It feels a lot sturdier than the Prusa Mk4.
Then again, I guess they're not in the same category...
With those flat plates I'm printing, there's zero difference. But when I have to print tall thin things, like for example a long tube to adapt diameters, it's doable without any support on the XL, while I need a gigantic raft and glue on the Mk4 - and even then, it shakes enough that the diameter is not that great at the top.
Also, the XL has two heads, so I can print TPU with PLA support.
And the price of eggs still hasn't come down...