nudelmannrichter

and this is also going to be a nanobot later?

ah, now I get it. You design, print in "large" scale for test iterations and later you move on to nano sizes... cool!

I wonder what the scale might be...

yes, show some pics, please. Sounds interesting!

well done! I've to make a similar piece. No matter where I try to suck up the rubbish, the nozzle is a tiny bit too large. This is why we have the printers. Just reliziing an idea and get a problem fixed.

Right you are, learing by doing is the best way. And apart from small imperfectoins one suffers on first try it is alway exciting if something new you try turns out more or less like imagined before. This encourages to try more and even if it fails you know so much more about how not to do that this is even amazing. I have no clue about Mario Kart trophies but for me done from scratch you did a great job.

Ok, I'll give it a try to post something in this thread to keep it alive. We will see if this does make sense for the future. Latest project: Casting mold for a rubber seal for a mast of a sailing boat. We did this before but by covering a milled core with layers and layers of natural rubber. Problem was that this material is not UV stable and starts to get brittle over the years. So as a new trial we decided to make a mold and to cast this from 2K Silicone based rubber. Unfortunately the dimensions of the mold exceeded the building space of the UM2 to it had to be divided in parts. 6 parts for the outer mold, 4 parts for the core. Total printing time about 150 h, material is Firetruck-Red PLA from Fabberdashery. some pics of the previous one we made to show the idea behind...

absolutely r8, gr5

jep, Robert and Foehnsturm that is always the problem when somebody gets the pin in his head that something well running has to be improved. In most cases no improvement but confusion. Really a bad idea not to offer a "latest first" sort option. For me also annoying this top bar going always up and down when scrolling the forum list with mouse wheel. But... it's their decision - I'm only a dumb user. They can to with their forum whatever they like to do of course and I also realize that there's no development without improving but for me it was somehow disappointing. I also see that at any change there will be people complaining... so please give a sh... on my comment. I was ready to post some new prints I made but now I lost motivation somehow. Nevertheless I have to say thank you to the Ultimaler staff that they are running a community site which is really helpful. So maybe I have to take a cup of tea and calm down :-)

crappy bullshit... doesn't work. I would also bother to buy for spares as I am not sure if quality is r8

Sander, thank you very much. Now we have clearness. Keep up your good work. Still love the printer!

nallath, thank you for your open words. Is it possible to condense what you wrote to the answer of a simple question: Is a dual extrusion add on/upgrade kit for the UM2 still planned and coming from Ultimaker or not? I think the community appreciates all the R&D work but it is time for clear yes or no, so everybody knows what up and that's it. Thank you!

not yet, I don't like to talk something being a bug but here I really have to ask how to fix. Did anyone got in touch with the guys making the Slic3r? If there is a guy in charge to talk to I'ii give it a try

sure that the feeder isn't moving at all? We have similar problem here and recognized thet the E values are only very small. In your code you can see also a small value : G1 X89.409 Y90.985 E0.00593 F1260.000 . We have E-increments from line to line of about 0.007 hat is nearly nothing if compare to the code Cura generates under same settings with increments of about 0.5 from line to line what is about 71 times more. The UM2 does this hyper small increments usind the Slic3r code but of course it seems thet the extruder isn't moving. Any idea what might be the reason for this?

looks really great. That is what tech pioneers do! Keep on!