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  1. Hello! If you're still looking for a used UM2 printer, I've just posted selling mine. If you're interested, you can check the details here: https://ultimaker.com/en/community/21027-selling-lightly-used-ultimaker-2-with-mods
  2. Buenos dias! Debido a la falta de tiempo para dedicarle a la impresión 3D, estoy vendiendo mi ultimaker 2 Está en perfectas condiciones, la he modificado para usar el alimentador de IrobertI y un bloque olsson, pero también tengo las piezas originales. La impresora viene con varias boquillas para el bloque olson: 2x0,4mm de latón, 1x0,25mm de latón, 1x0,8mm de latón, 1x0,4mm de acero y 1x0,8mm de acero. La impresora siempre ha estado en un sitio seco, y cuando no ha estado en uso, siempre ha estado cubierta para prevenir el polvo. El sensor pt100 y el cartucho de calor fueron cambiados rec
  3. Hello and good morning! Due to time constraints - as in, I've no longer have enough spare time to model & print - I'm selling my ultimaker 2. It's in working condition, with roughly 1000+ of printing time. I've modified it with IrobertI's feeder and the olsson block, but I still have both the old block & nozzle, and the original feeder parts. The printer comes with 2x04.mm brass nozzles, 1x0.8mm brass nozzle, 1x0.25mm brass nozzle, 1x0.4mm steel nozzle and 1x0.8mm steel nozzle and it has always been kept in a dry storing place, covered when not in use. The pt100 sensor is relatively
  4. True. That's why I thought weird when cura showed me the layer view and I noticed the crosshatch pattern. At first I thought the infill density might have something to do with it, thinking that perhaps cura might have overridden it for some reason. So I just changed it to 100% to see if that was the issue, but it wasn't. I'm still fiddling with the "faulty" settings, but I can't seem to find which one is causing this. After resetting the profile settings, it works normally, but I'm curious as to what might be going on here.
  5. Sorry, I was fiddling with the settings to see if something changed, and I think I posted a different profile file. I did as you suggested and reset the setting to default. Indeed, it looks completely solid again (as it should) at 100% fill density, but also at 0% fill density. The parts are 1.275mm in height. However, if I load the posted profile, the holes in the top layer appear again, even if I set it to 100% fill density. I wonder what could be the cause of this?
  6. Lately I've been struggling with some underextruding issues, which make the top layer of my prints a rather ugly mess. Today, when sending a test print to cura, I noticed something strange on the top layers: This is the top layer, and you can clearly see the holes between the lines. This results in a rough surface when the print is finished. The weird part is that in the lower layers, the effect is less pronounced: Until it disappears completely at layer 1: I've tried fiddling with some of the setting from cura, but I can't get the top layer to be as smooth as the first
  7. Makes sense. I'll try with stick glue first, and if that doesn't work, I'll see if I can find M3 tape.
  8. Wow, thanks a lot for the advice! Yes, I'm using PLA. I thought the bevel at 45 degrees would be good enough to print without support, but I completely forgot about the temperature I tried now. I don't have blue tape, so what I did was leave the heated bed on for the first layer (I added a brim to both prints) then turn it of as soon as the base was done. With that and Labern's advice, it printed perfectly. I'll be sure to write this in my printing notes, I can see how it would be very useful for other printing projects. Thank you very much!
  9. Good night! I'm currently trying what I thought it would be a simple print, a round "staple" with a loop on top. The first part prints very well, but when the nozzle reaches the flat top, the nozzle begins pushing the top down, as if it were trying to print lower than the current height. The loop in the flat top also prints with the nozzle touching the printed material (and pushing it to the borders with the movement). The results, as you can see, are not pretty: What am I doing wrong with this print? Is it a problem of printer bed calibration or something else? Thanks for your advice!
  10. Thanks for the graph, gr5, I've bookmarked it to keep in handy for future references :cool: It's indeed good advice, I'm currently printing the replacement, it'll finish in 2 hours. I'm currently using 0.1mm layer height for most projects. I have a batch of minis waiting to be printed, which I plan to print at 0.05 for high quality and see how it works out.
  11. I'm currently printing at 50 mm/s, with a temperature of 210º. The printer is working again. I withdrew all the material and tightened the tension screw until the indicator was in the middle. I'm currently printing the leveling circles, but as soon as that works, I'll print the new feeder system as per your suggestion. Thanks!
  12. Kris: yes, I've cleaned the nozzle using the atomic method. I'm not sure what other methods I can use to clean the nozzle. Acetone, maybe?
  13. Good day. I'm having a strange problem with my ultimaker 2 printer. Yesterday, after replacing a broken heat sensor, I started printing to see if everything was ok. First print came out beautifully, no problems at all. Then I left the printer doing an overnight job, only to find out this morning that the printer stopped shortly after finishing the rafts. I retracted the material to see if the nozzle was clogged, but it appears to be ok - I can insert an acupunture needle without problems. However, I had to cut part of the PLA filament, as it looked like this: The tension indicator i
  14. Thanks, 3Poro. I'll bookmark it and read it carefully. I've already ordered a replacement sensor - as I can't afford to wait an additional 3-4 days until the support ticket is answered. I hope this won't become a recurrent problem.
  15. Thanks for your advice, Gr5. I've already opened a ticket and I've updated them this morning with my previous post. I'll guess I'll just have to wait until they answer back. Thanks again for your advice
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