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ddurant

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Everything posted by ddurant

  1. 3 spam posts every few days or so makes the whole ultimaker org look like a joke? Really?
  2. ddurant

    How to adjust Steps per E in Printrun?

    Right. Also, I dunno M2210 but Joergen is usually pretty clever so you may want to look into that, too. If you didn't already know, multiply your current esteps value by 50/46 (1.09) then measure again. Keep repeating and adjusting esteps by desired/measured until it starts behaving.
  3. ddurant

    How to adjust Steps per E in Printrun?

    Do you really mean "extrusion length" here? The esteps value is how many steps (to the extruder motor) are needed to pull one mm of filament into the drive mechanism - it's not about the length of filament coming out of the nozzle. Unless the filament is being offset (ie: slipping in the drive) in a very predicatable & consistant way, changing esteps may not be the right way to address this problem.
  4. ddurant

    Metal finish for 3D sculptures

    Is pricing available for this? I don't see any..
  5. It will be part of a G1 command, just like X, Y, E and F. It must be in there..
  6. Another of the under-extrusion but with over-extrusion in there, too.. too little & too much by ddurant123, on Flickr
  7. ddurant

    Should I buy one Ultimaker?

    I think the bigger question is going to be what will technically meet your needs. FDM (extrusion) printers can be a bit tricky with small parts and large parts can take a lot of time to print, if you also want quality.. (you should also add a MakerGear M2 to your list..)
  8. ddurant

    i have to ask...

    I suspect I'm on the wrong continent to get this sent to you any time soon but looked at the model anyway.. It's really quite small - about how big is it supposed to be?
  9. F is feed rate - the X/Y speed in mm/minute. E is extrusion - how much filament is going into the drive. Find a G1 command with a Z value in it - that's the Z height. MAKE SURE you do what Daid said and put an M92 E in there to reset the extrusion to where you left off. Failure to do this won't break anything but you'll be very, very unhappy with the result. Like, it'll start by trying to push (based on the gcode you posted) about 11 meters of filament through the hot end before doing anything else. Ask if you're not sure exactly what to do..
  10. Great! It's been so long since I was a new user that I've forgotten what the process looks like.. When you signed up for the group, did you get an email, saying that you had to click a link or do something? I'm just wondering what the process is and how things can be made smoother for new users... No, I didn't get an email to click on something.. there should be a way to give post permissions by default to all new users that sign up.. Don't really want to do that - it encourages the spammers.. :( It should be obvious for new users so I suspect something is broken. I had to switch back to the old groups format to enable posting for you - googles "new and improved" format seems to be missing a bunch of admin features. :roll: I reported the weirdness to google. No idea if they'll fix it, though...
  11. Great! It's been so long since I was a new user that I've forgotten what the process looks like.. When you signed up for the group, did you get an email, saying that you had to click a link or do something? I'm just wondering what the process is and how things can be made smoother for new users...
  12. ddurant

    USB connection lost - Why?

    Mine's a little sensitive to static.. If I forget to touch something metal before touching the machine while it's printing, I sometimes get a reset. Not often - maybe 2-3 times, ever. Things like having fluorescent lights on nearby can also do weird things. My machine doesn't have a problem with them but I've heard of other machines having such issues.
  13. I can see that you (or somebody else named 'approx') joined the group 4 days ago but that "posting" for you is set to "none" insead of the "allowed" setting that most people have. There are a number of others that have joined in the last couple weeks like that, too. I don't see anyway to change that setting, though.. WTH, google? I'll poke around with it some more. I seem to have all the right privs to manage/approve members but google is saying there aren't any new members to approve.. Is it sending you emails when people post? edit: try posting now.. Better?
  14. ddurant

    Next steps.

    Only that I've never had great luck getting transparent PLA to come out really transparent. I've suspected that the two big factors are printing speed (ie: pressure/turbulance in the nozzle) and the temperature. I don't have any rules or tips, though...
  15. ddurant

    Extruder issues

    I've got one of the first Ultimakers to ship and have printed for many, many hours. I've seen this problem, the PLA plug at the end of the bowden tube, only once. My best advice, if you haven't already given up, is to never, EVER leave the machine hot. Don't even preheat until you've got the gcode loaded and the build platform ready and all that. It only takes a minute to heat up so get everything else done and ready before heating.. Once it's done printing, make sure the temperature gets set back to 0 so it cools off. As filament moves through the system, it pulls heat out of the hot end.. If this cooling rate is less than the heating rate, the hot end ends up with an excess of heat, which moves up the system and can cause the dreaded PLA plug to form at the end of the bowden tube. The way around this is to find the (somewhat fine) line where you're just adding enough heat to the system to allow melt the filament the right amount but not so much that the excess can move up the hot end to the bowden tube. You haven't (AFAIK) posted about the settings you're using.. If you need help getting the machine to behave properly, you should start up a new thread and post those and the probelms you're seeing.
  16. I agree. Rob Guiseburt, the guy who coined the term "Volumetric 5D", has been talking about that for a while now. He seems to think it's not THAT hard. Not sure I buy that but Rob's a very clever guy. Personally, I'm not sure it's worth it. For the most part, we're printing at resolutions where small differences in filament diameter are in the noise - unless you're printing at 100% infill, over-volume just gets smushed into the voids and under-volume ends up making lines that don't exactly join but are pretty close. Filaments that have big diameter variations tend to cause other problems (mostly at the cold end) and don't live long. People give up, the seller gets a bad name, etc.. What I've been saying for a while, diverging from Rob, is that I'd like to see things move more towards "true" volumetric 5d where the slicer specifies (via "G1 E" or a new "G1 V" or some such) a raw volume value to the firmware in mm^3. For filament-based extruders, like we all have, this doesn't get us a whole lot - it lets you change feedstock diameter and (maybe) rescale a print without reslicing but that's it. What it does allow is non-filament extruders - PLA pellets cost like a 1000 times less than PLA filament....
  17. Great!!! I think it's pretty rare to actually clog a nozzle.. The 0.4mm thing sounds really small but it's quite big, compared to dust. Where did the black filament come from? Someplace reputable?
  18. Though I haven't had to cut my bowden tube before, I do think you're looking in the wrong direction.. With some care, you should be able to get it cut straight enough to work. The amount of pain you're expeciencing doesn't seem to match up with this task. Have you tried heating up, ***carefully*** pulling the nozzle off and seeing if you can push filament through by hand? (edit: probably don't need to go to your normal heat range.. I'd probably start 15-20C lower than that and see how willing the nozzle is to come off then raise it up a little, if needed)
  19. ddurant

    Ultimaker loosing temperature

    Watch the LED on top of the printhead. It's not flickering, is it? If so, you've got a loose connection somewhere..
  20. ddurant

    first question, what is 5D ??

    ...and E is 'extrusion' and F is X/Y speed. Basically, 5D allowed movement of all axes (x, y, z, f, and e) on each line of gcode. With that, it's a LOT easier for the firmware to play games with speeding things up and slowing them down so we can have features like acceleration. Volumetric 5D came later and redefined what E meant. It used to be (straight 5D) the length of filament you wanted to come out of the nozzle and changed to mean the length of filament going into the extruder drive. This made it WAAAAAY easier to come up with new printing profiles, since it allowed slicers to just say "I want this much filament" and not have to worry about nozzle size and temperature and all that crap that can vary from machine to machine..
  21. ddurant

    How to use Skeinforge ?

    It's more 'reference' than 'manual' and, like daid said, there's a bit of a learning curve. I don't think it's THAT hard, though.. The trick really is to resist the urge to poke at all 693 settings and learn (then stick to, while you're still new) the 5-6 that really matter. A good starting place is http://wiki.ultimaker.com/Sprinter#Spri ... _and_later for some basic settings. It's a bit dated but should get you started. Ignore all the stuff about sprinter - we're all on marlin now.
  22. ddurant

    reset home XYZ ?

    Check your min endstops! Most startup gcode tells the firmware to move until it hits the X, Y and Z endstops then sets that position to -120/-120/0. If it is moving to the front/left of the printer then not stopping, it means that the firmware is not seeing the endstops trigger..
  23. The support under his chin looks very dense - lower Raft\Interface Infill Density to make it less dense..
  24. edit: latest file should always be here, in the first post of this thread.. I've been working on software to generate netfabb material definitions. You plug in some numbers and it spits out a .reprapcalibration file, which can be imported into netfabb as a new material definition. The program isn't quite ready for prime time yet but the results, I think, are getting close. So.. I could use some help testing this stuff.. If you use netfabb and want to try some new material definitions, post here with the specifics of what you'd like and I'll generate the profile & upload it here. Here's a screenshot of what I'm typing numbers into: netfabb material generator by ddurant123, on Flickr If you'd like me to generate a material for you, please post: - base layer height - filament diameter (measured accurately!!) - temperature - travel feed rate - min and max feed rates - min and max thread widths For the min/max ranges of feed rates and thread widths, the code will generate 5 values for each, even distributed between the min and max values. If you'd rather specify individual values (like "feed rates of 20, 30, 40, 100 and 150" instead of "feed rates between 20 and 80"), just say so. Of course, if you try one (or more!) of these out, feedback on how it worked would be much appreciated..
  25. ddurant

    netfabb material defs: what would you like?

    New version back on the first post. Just a minor change to the config file for when 1/2- or double-height layers aren't used. If you use this program but never disable those options, there's no need to get the new version.
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