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  1. Hi guys, For my current model the automatic support is badly placed by the algorithm since it misses a few layers and then believes it can just print more support onto thin air. 1st support layers are put down correctly. Support is no longer added. Support is laid down onto thin air - nothing was printed underneath. Support keeps being added. The gap in support is visible. What's going on here? How can I work around this? All the best
  2. Thanks for the pointer, Skinny. Should have spotted that myself. I'm posting a screenshot for those other newbies who don't find that right away.
  3. Hi James, could you post a picture of your modification?
  4. When I multiply models they are printed sequentially or together seemingly randomly but I cannot find where to define this. It causes me a lot of trouble, since sequential printing is a must for flexible filaments. I saw gr5's suggestion of setting the gantry height to 0 but this is a tip intended to force all copies to be printed at once. I have 2 small spheres (see gcode) that I want to print sequentially. Where do you to set this.
  5. Still on the standard UM2 feeder. No mods there yet, although I have been considering them for flexible filaments which occasionally get stuck.
  6. I'm still trying to determine the best settings. I ran a gradient test from 210, 220, to 230°C nozzle temperature (left to right). I noticed the following: At the bottom and the top, the Ninjaflex doesn't cool down fast enough and is still liquid when the next layer is applied. This leads to the bigger molten blob at the top of the 230 getting smaller via 220 to 210. It also leads to bulges of material being pushed around by the nozzle at 230° but not at 220°. I won't use 210°C because the material is too crumbly at this low temperature. You can see this in that the 210 print is much
  7. Hi Sebastian, Stelle ein neues Material ein unter Material / Advanced / Customize. Oder Export to SD, dann kannst du einfach der Textdatei eine neue Einstellung hinzufügen. Mein Tipp 220°C, 40° Bett und langsam drucken. Hier findest du mehr: https://ultimaker.com/en/community/4630-has-anyone-tried-ninjaflex-filament-in-um-or-um2-yet. Viel Erfolg
  8. After studying the excellent contributions in this thread, I ran a little test of my own. First, I thought I'd try the no frills version adjusting just the material type in Material / Settings / Customize on the Ultimaker. As for gurby, who suggested this on page 2 above, it worked for me without any problems. All I did is set the filament diameter to 1.75mm w/o adjusting anything else not even flow. If you can tell the difference between 3 and 1.7mm below, I'd be impressed. What does seem to happen is that some PLA accumulates in the wider nozzle as gr5 suspected. That lead to a minor retract
  9. My bad. This trick is so counterintuitive that I didn't get it at first. It's weird that you can actually change the file format just by changing the file name. Thanks for clearing that up. It worked now.[/media]
  10. Hi Berndjm, Thanks for the tip. I just tested renaming a Cura-exported AMF to STL and importing it into Simplify3D to test compatibility. Simplify3D imports .stl and .obj files. Loading a renamed AMF file crashed the program and didn't open any model. I guess the difference between the formats is too big. I see why Ultimaker may want to change away from STL to AMF. The Additive Manufacturing Files are not based on a single company (3D Systems) but instead determined by a group of makers. It is an open standard and has native support for colors and materials unlike STL. Several other technica
  11. Hi Rusty, You description sounds very promising but could you provide a little more detail? What type of washer did you use where? Could you provide a photo or a more detailed description? It sounds like you made no modifications to the filament motor, didn't you? Would love to replicate what you pulled off but that would be much easier with a few more details. Hope to hear from you.
  12. On the latest Mac version of Cura (15.04 as of early 2016) there's no STL export. If you go to the Save Model the only option you have is .AMF. Is there a way to export .STL from Cura on a Mac?
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