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oatfoundryprinting

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  1. Cool beans! Thanks for your responses everyone! It's giving me some good ideas on how to go about attacking this problem again. One more question, if that isn't asking too much: Since I am shooting to print with a 0.25mm nozzle, do I need to print using thinner filament? Currently I use 3mm (actually about 2.85mm) filaments, and I was wondering if I HAVE to switch to a 1.75mm filament to print reliably with a 0.25mm nozzle? I have heard this change can cause some problems with extrusion, but is it necessary? Additionally, if you switch to a 1.75mm filament setup, do you need to change th
  2. Thanks for the replies. @Gr5: This is what I tried to do. I manage to unscrew it while it was hot, and threaded the 0.25mm nozzle onto the heat block. I then screwed the threaded tube closed, as hard as I dare without breaking it. I was presented with TONS of ooze, big globby messes running down the outside of my heater block and nozzle. Molten plastic was oozing out both the top AND the bottom of the heat block, where the threaded tube meets the block AND where the nozzle sits flat against the bottom of the heat block. @NickFoley: Nick, with a female thread going into the nozzle, did you re
  3. Hello Ultimakers! I having been printing on my Ultimaker (V2 Hotend) for roughly 5 months, and I am more than pleased with the results I've been getting. My prints are quicker and I waste less time and material on failed prints than I did in the beginning - it feels good to progress! However, recently I've run into some walls. I have been trying to print REALLY small objects for some customers, to no avail. The stock 0.4mm nozzle that came with the V2 Hotend is just too large to get these kinds of details that I need. In the past, for some small features, I've been able to tell the printer
  4. Daid, http://www.thingiverse.com/thing:107413/#files The V4.9 Shroud (last file) is what I was trying to print. And Thank you for clarifying combing - I have noticed it does that on some moves so that the "drag-behind" is in the internals, but it's not consistent.
  5. Daid, You would want to see the gcode the file was sliced into, or the original .stl? Also, what is combing exactly?
  6. Here is another great example of what I am talking about. New Tapir Fan Shroud v4.9 from Thingiverse. The print has LOTS of excess webbing on the inside of the part. http://imgur.com/nnBNMtw
  7. Daid, Thanks for your reply! The "minimal extrusion before retraction" setting is exactly what I looked to to solve this issue. I have the numerical value in this field set to a ridiculously small number, 0.5mm I believe, and yet still I get these massive strings caused by the head deciding to "move" without a retraction. The extruder is not actively pushing filament during these moves, it simply leaks due to the plastic being heated and results in self-ooze. Watching my prints, I have noticed these types of "moves" occur even after a substantial amount of printing has been completed. That
  8. Hello Ultimakers, I've recently downloaded 13.10 Cura and have been testing out some prints of mine, and I began to notice a drop in quality of my finished prints. The "drop" in quality is not so much to do with the actual layers of the print, so much as it does with the "moves" and retractions of the print. I've noticed that my prints sliced with Cura 13.10 often opt to not make a full retractions when moving across my part. As a result, I am left with large strings being pulled across open areas of my print. This leaves lots of excess material that I must cleanup afterwards, even on the m
  9. I will gladly post my gcode for you here Illuminarti. I've got the saved .gcode file, I just don't know how to attach it here in the forum. Suggestions?
  10. I just checked the layering in Cura, both the 13.06.4 and 13.07 TestSupport2, and I looked for the little vertical blue line indicating retraction. Apparently Daid's 13.07 does not support certain retractions that 13.06.4 does. I checked both programs, and the 13.06.4 does show a retraction before the move - 13.07 does not. I do all pieces with excessive support material in Daid's 13.07 because it makes cleanup a million times more simple, but it seems to not be quite as polished as of yet. This explains my dilemma. I suppose for now I can just deal with cleaning up these excessive stringers
  11. Wow guys. Awesome responses! There's some pretty good information in here. @gr5: Yes, Cura retraction was enabled. I've got 40mm/s retraction, 4.5mm distance. @Code Maven: Honestly, those features sound SO useful. I'd love to vary my shell thickness, temp, and fill throughout parts. I've already had a print in which I was wishing for this kind of control. But like you said, Cura is free and works pretty darn well. @Illuminarti: I am going to reprint this pipe and check for more string problems. From gr5's advice, I'm going to drop the temp on that print by 10 degrees and see what happens.
  12. And yes, gr5, I am sure that those long beads 4 inches across the top of my part are done so with no retraction. I can at least identify what retraction stringiness looks like, as well as the sound of the extruder retracting. During those final moments of the pipe print, the print head made no stop before retraction, no extruder noise for the retraction, and the bead was not stringy. It was a complete, and rather well laid (for being printed into the air) line, complete from start to finish. Retraction strings usually trail off.
  13. Hey guys thanks for your response. I've got to be honest, I am woefully ignorant of slicers, to the point where I don't even know what I am using currently. I am using Cura 13.06, and when I need to print pieces with support material, I use Daid's Cura 13.07 SupportTest2. Before last week, I had no idea options of different slicers were available. I have simply been loading my .stl files into Cura, letting it render, and printing from there. I haven't really noticed any problems before this last print, but it could also be that I am becoming more in tune with the process and noticing more.
  14. Hello Ultimakers! My name is Luc, a brand new user, both to the Ultimaker and these forums. Recently, I've been reading a lot of forum posts in which people are talking about different slicing engines for varying applications. Apparently, some are better than others at certain things, and as a clueless noob, I was hoping to create a post in which a large amount of this kind of information can be compiled. I haven't seen a post like this yet; I've just been catching hints and glimpses at what people are talking about individually. Usually though, I have no idea what they are talking about. So
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