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Ultimaker Community of 3D Printing Experts


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  1. Has anybody tried or had good results with the MatteForge Advanced Matte PLA filament? They claim it to produce nice and matt finish even in black. I'm intrigued.
  2. Why is the cura 15.04.6 the old UI again? I must have missed this point... does not make any sense. J
  3. Ah... I'll keep the old ones loaded then still
  4. Right.... Trying to figure out how to use the plugin in the new Cura... Any ideas?
  5. I've had similar issues with "roofing" and here's my solution. 1. Get a new coupler.. well actually get a bag of them. My underextrusion issues dissappear once I change a new coupler... The old ones are always hollowed out from inside and burned. 2. For difficult surface closings I drop down the temperature to a miniumin where it still comes out nicely and put fans to 100%. I also lower the build plate a bit manually on the fly. This way the nozzle doesn't travel against the uneven surface and end up scraping the previous layer and destroying the new one. Rather it cools down on top nicely a
  6. I was given a piece of this: http://www.buildtak.eu/shop/ . It's an 3D printing surface for all FFF printers. Anyone tried them?
  7. I have had UM2 for over a year now and I use it mostly for printing gears and other knick-knacks from PLA/PHA for my customers. But I see the print quality slowly deteriorating over the last half an year. There seems to be nothing wrong with the printer and I get 10/10 from the UM2 speed torture test but still the print quality is not what it used to be: More banding, more underextrusion (especially with thicker layers), not as accurate dimensions, etc... So I was thinking to buy another new one as I can't be in a position when I don't have a working printer financially. My parts are small s
  8. One thing I just realised that makes the new "forum" seem so un-forumy is the lack of activity counter. Post count and the latest reply time stamp is an old and proven method of quickly seeing what part of the forum is active and what not. On the forum overview please add post count and latest reply after each of the boards... and who posted it.
  9. Agreed. This is the worst kind of fashion before function shift. Please can we have a good working forum back please.
  10. I have sometimes heard the "clack" also and had to wriggle the tube to get the filament in. Now I always sharpen the filament edge. No issues since that. and I get 10/10 from the speed torture extruding test so I don't think my coupler is especially deformed to restrict the movement.
  11. I used to print PLA without glue but I have started to use it recently for sharp cornered bottom layers. (I usually print gears where the teething start from the first layer) Without the glue, when laying down the first layer, it seems like the sharp corners of the teeth sometimes curl/or are being pulled up by the nozzle when it passes. Happens only in the first crucial layer. I've always thought that the first layer filament strings does not grip well on the clean glass. Glued surface feel more rough once dried and my corners don't curl up. (note I'm talking only about the initial layer onl
  12. I've had this same issue for ages. My trick is to really slow down to crawling speeds for the final 2 layers and rise temperature a bit plus turn the three screws leveling screws so that the final layers really squeeze on the print. (sometimes I just lift the build plate by hand and keep it there for the final layer) Not ideal but that's the only way I've managed to solve this. I should say that the gaps seem to be worse when on 0.2mm
  13. ref: a couple indents I always get these and I've always thought that they are due the softened filament stretching when you are pulling it. They wary from every pull. I've had no issues due the "stretch marks".
  14. Sounds like your bed might be too far from your nozzle. Also externally dirty nozzle seems to make it easier for the plastic "curl" around the nozzle.
  15. I'm assuming that you are using "move material" here. You really giving it a proper shove inside the head. The motor skips because there is just too much "pressure" at the hotend. When I use "move material" I generally give it 3-4 clicks at the time and then wait few seconds and then another 3-4 clicks... etc... If I do more more the extruder will shred the filament. Even at this "3 clicks/wait/3 clicks/wait speed" the flow out from the head is nice and constant. Try to feed the cord in to the printhead manually and you will get sort of a feeling how little pressure is actually needed for ni
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