foehnsturm

I don't see the new machine as a successor model of the UM2. Instead, I suppose it'll aim at a prosumer / professional grade segment right above the UM2 (at least the first version, when new technology is expensive). Would be a standard marketing strategy.

A double walled cup. Still have trouble to get the inner shell watertight, the outer one always is.

@Ultiarjan last print was bare glass, no glue, 54°C bed

@Dim3nsioneer True, so let's try to get a statement from the originators here. Should be possible without disclosing essential company secrets. After reading all of the few information available, they actually call it a "PLA blend" and claim it to be food safe.

@Dim3nsioneer http://two-bears.eu//index.php?s=82 No related to them in any way but loving "outsiders"

Really curious about your opinion. 190°C vs +250°C would be a be huge advantage regarding PTFE lifetime.

@ultiarjan No treatment, just printing, less warping, good layer bonding @Dim3nsioneer Nope, I assume despite it's called "PLA.." it's closer to the other BioFila filaments which are based on some lignin stuff. @DidierKlein, same opinion here People always look for bright colors but maybe not enough for material quality and tactile feeling.

Some time ago, I started a topic about bioFila linen filament and it's impressive print quality. Actually my most immaculate prints ever were with this filament. Now there's a new one, PlaTec, which withstands temperatures of up to 110-120 °C! The first print looks promising. It actually prints at least as easy as regular PLA and way more easy than PLA HT for instance. The three robots have been printed with the gcode which comes with the UM2. Only temperature was adjusted, PlaTec only needs some 190 °C. Of course only one of them has been boiled in hot water.

@Dim3nsioneer: Correct, it's the entire new drivetrain. Roughly measured, wall thickness is 0.5 mm up to 10mm3/s, 0.45 mm3/s up to 14 mm3/s and 0.4 mm at 16 mm3/s when underextrusion gets visible.

I had a few minutes to torture the new feeder. It was already a little hard to find illuminarti's original test file but I didn't manage to look up the 8-15 mm3/s file at all. So I did a second print with speed set to 200%. Ultimaker standard silver PLA, 210°C. The result is quite impressive. The funny thing: More or less at the same moment when underextrusion starts at 16 mm3/s the motion subsystem seems to get in trouble with processing the number of line segments per sec in this particular file. You can call this a well balanced system

Particularly, if oneself might be less clueless?

Whatever it'll be, it has to give the "Ultimaker user experience". Which Ultimaker considers as one of its core brand assets. It's obvious that they try to learn a lot from Apple in it's best times.

Hm, not sure. If you want to start drawing deductions: multi-material -> multi-head multi-material -> direct drive (flexible and other filaments) multi-head -> Elserbot gantry not suitable direct drive -> 1.75 mm (trading feeder torque for speed) --> sounds very "disruptive"

Well, Ultimaker pays a lot of attention to their customers and to what people like you, me and many others are doing. that's for sure. But this new "printer" is super secret, I don't know anything about it. So perhaps it's something completely different. On the other hand, if there were some resemblances to my work UM even might not tell me right now. My feeling is that it's more the former not the latter. But I might be completely wrong.

I can move the fan along the X axis in order to aim at the "hot spot". If there were more than one, far apart from each other I'd have to use a second fan. Of course the air flow is stronger close to the fan. But the basic idea simply is, throwing as much air as possible onto the print and don't care about the details I could even add a second or third battery, the fan is rated for 3 something Volt. But that would literally blow everything away - and sound like a real drone flying next to the printer.

The robot file that comes with the printer. No left ear issue anymore.

Whatever fan duct you'll use, I'm not entirely convinced by UM's part cooling design. Especially when there are tiny structures somewhere und you don't want to multiply parts just for cooling reasons. Some might know my "Crossflow fan approach". This one is the exact opposite when it comes to complexity and costs A battery, a micro-drone replacement part for less than 5 € and some spare magnets. Just clip it to the frame where you need extra cooling. A 2000 mAh battery should be good for 6-8 hours. If you are inured to the crappy version of the hotend cooling fan it won't disturb you much If not: it only has to run during critical sections of the print.

If you want to guide the filament perfectly, you have to use metal parts because the struts become so small. BQ Hephestos V2 feeder (taken from a video by Richard Horne)

Unfortunately not. The guys in charge of Smoothie kindly sent me a replacement board but I hadn't the time to start over again. Busy with another project at the moment.

My opinion here: Dual (or multi-color) printing, while being hyped, is not the future of fused filament fabrication. There are other methods which are better in that. But multi-material printing (soft and rigid, persistent and soluble, ...) will be interesting. However, it's even more complicated. There might be things required like greatly differing temperatures, different nozzle sizes, deviating slicer settings ... For my impression, Ultimaker shares this view.

Well, actually I asked because I'd find it interesting if there was some impact Laser welding of PLA ...

@drayson, @Labern does the 455 nm laser have any impact on (well not blue) PLA? PLA absorbs the near IR wavelength which is widely used for laser material processing (you cannot cut it because it melts first) and there seems to be absorption in the near UV.

This is the first time I see someone offering a laser kit which looks very well thought out. My mayor customer is developing various "small" laser marking, cutting and welding systems. So I asked a person there about an opinion on it.

The project is a little delayed because of weird cross talking issues with the smoothieboard. It's only working reliable with the screen disconnected, which is somewhat annoying for testing. Don't want to start an additional project with octoprint right now. So I ordered a smoothie-compatible board from China as an alternative. When everything is working as it's supposed to, the next step would be implementing the tool changer sequences. I'm in touch with Ultimaker but there aren't any definite plans yet.

There it is