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ajdulion

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Posts posted by ajdulion

    Ultimaker2 Feeder System - Improvements and Ideas

    in Third party products & modifications

    Posted

    In hindsight I should've skipped the spacers and just told people to buy longer screws that bottom out before squeezing the case :lol:

    Here's the Gcode I used. I shut off bed temp manually just after starting the print:

    https://www.dropbox.com/s/eoc3ky67wlorga5/feeder_v4_spacerUseSpiralize0.7.gcode

     

    i'll give it a go running a 2 hour print atm so will start it after this one :)

    pla temps 220 ? and you did let the heatbed heat up (i manually turned it to 0 in the settings before the print)

    edit :

    OMFG! your gcode scared the shit out of me after the ultimaker was making strange noises but god dam it made perfect items !

     

    Ultimaker2 Feeder System - Improvements and Ideas

    in Third party products & modifications

    Posted

    @AjDuLion: Yeah, PLA will work fine, it's what I use. 0.1mm will work fine as well. As for infill I think I used the standard 20%. Use at least 0.8mm outer layer (2 shells) for strength.

    Also make sure you read back a page or so, a couple of people had issues with the length of the arm not being enough. I posted a couple of modified files for that but no one has reported back if it worked or not...

     

    i woke up at 01:00 seeing my little owls beeing done.. started your print.. forgot to change filament so now i have it in black.. 100% fill (overkill i know) on pla at 0.1mm

    only need to print the last part and then I can start changing the stuff out (doing a vase print right now of 10 hours and the extruder started clicking in the first 15 mins but i had to go so fingers crossed i get home with a decent print instead of spagetti...

     

    morning guys ! :smile:

    Im still tweaking at two design ideas.. two very different approaches both offering different benafits.

    I am curios about which one ends up better.

    The big presentation is now in 3 weeks in Erfurt germany and Im going to have a lot of fun showing off my 2 ideas.. working models and also discussing the topic with the audience.. will be a crazy think-tank of people.. :smile:

    Would love to have live feed there but not sure about that.. ?

    Ill ask Florian and see if he knows..

    Ian :smile:

     

    just give us a sneak peak!! or the beta files :geek: (or i'll keep on using robberts !)

     

    Ultimaker2 Feeder System - Improvements and Ideas

    in Third party products & modifications

    Posted

    Right, I've put up my design now. There's a long ass bit of text to read there so read it before you start printing. (so you can decide if it's worth the effort).

    https://www.youmagine.com/designs/alternative-um2-feeder-version-two

    Now we wait for Ian's design to make mine obsolete and pointless :)

     

    Is this safe to print in PLA and what other settings do you recommend ? 0,1layer height ?

    I will probably start printing this part tomorrow evening in Orange (had some prints going for kingsday this weekend so why not)

    i'll give Ian his design a go as well seeing he seems to have started it a long time ago (as far as my feeder goes.. been printing for 1,5 weeks non stop and still no issues with the current feeder but I like upgrades so yeah)

     

    Iphone case print

    in Improve your 3D prints

    Posted

    and i'm back again..

    0.1mm prints seem to work fine but now when i try to print 0,06 or 0,02 i seem to get underextrusion.

    when i ramp up the extrusion rate to 400% it starts flowing again but that shouldn't be good ?

    the first layer goes on without a problem but the second one seems to underextrude and after that it seems to speed up the print process the next 2/3 layers.

    underextrusion.JPG

     

    It also seems the first layer isn't 0,06/0,02 but a thicker layer (looks like a 0,1mm to me) is this normal ?

     

    i'm trying to create the smoothest surface on the first layer so that i can sand it better in post but for now all I seem to be able is to print 0.1mm cases but once i go down that layersize the prints starts to fail with underextrusion..

     

    Iphone case print

    in Improve your 3D prints

    Posted

    Could it be linked to your fill density? It seems low at 5%. I generally use 20% or more.

     

    I actually printed 4 more cases that all seem to fit after chabing from UM gold to abother brand pla black..

    I even turnd on retraction and now problems.. I will test the hollow cube soon after I finished the fifth iphone case and post the results

     

    Iphone case print

    in Improve your 3D prints

    Posted

    1) I don't know why PLA gets brittle. Mine has been fine - all colors, all brands. I think it gets too dry maybe? I haven't heard any good explanations. I recommend you somehow mount the spool on the floor. Maybe make something with knex?

    2)

    Very strange. This would make complete sense if your rear fan is broken. There is a 3rd fan on the print head at the back. Look carefully. Does it spin? It should start up when you power on the machine - even before the lights come on.

    3)

    Is it too small? Do you have calipers to measure exactly? I would measure very accurately the "error" and increase the model by that amount. Or you can just try 3% as that usually works - maybe change the scale in CURA to 1.03 (3% larger).

    Or you can scale in only X and Y if those are the problem dimensions. If it is more complicated maybe you have to post a picture?

     

    1: pla might be stored wrongly not sure i've bought 6 new rolls so i'll see what happens.

    2: fan is working no problems there... it's just really strange.

    3: it seems to be to small, i've been to a 3d shop in Rotterdam and they had allot of cases laying around and those seemed to be much smaller at the edges mine are very thick.

    it seems my fifth and sixth attempt at printing a case worked, only downside one of the 2 models broke after removing the iphone for the second time so this one might need to be printed in flexibel pla the second one didn't break yet after removing twice.

    now I should have to figure out how to get my retraction working...

    is there a test file i can print to test retraction I know there is pyramide that seems to test this very good.

     

    Iphone case print

    in Improve your 3D prints

    Posted

    Hey guys

    for some reason I just can't print iphone cases that ''fit'' to the iphone..

    i tried doing them fast/slow 0.1mm and 0.25 they all seems to ''work'' but the phone just won't sit into the case.

    no one seems to be sharing there settings on how to print them..

    i tried printing this one http://www.thingiverse.com/thing:241258

    my settings are :

    expert.png

    default.png

    advanced.png

     

    another problem is when i use retraction (standard 4,5mm and 45mm/s settings) it seems that after a while the printer does not extrude any pla and the prints fails, this wasn't an issue before but now it seems that it happens all the time.

     

    Also, the gold pla I got with my ultimaker 2 is at 50% and I now already have had 4 breakings of the pla on the spool wich meant having to manually guide the filament into the extruder to keep the print going is this due to the fact the spool was wined up to tight ?

     

     

    I also did do the extrusion test and it seems to pass everything

     

    http://dump.ajdulion.nl/IMG_2224.JPG

     

    made a link due to large size

     

    (i know there is a line at 6mm/s but this was due to the spool once again breaking and me having manually feeding the cable in)

     

    3D printer environment

    in Coffee corner

    Posted

    That must be a really good friend. :eek: :-P

    Otherwise, I would prefer to entrust the printer my cats... :cool:

    ...or my wife. :???:

    I hope she reads that never. :oops:

    Markus

     

    haha I can understand, thing is I more then often ''borrow'' some camera gear from him wich blows the price of the UM2 out of the water, my main reason to place it there was i'm almost always there on weekends and it can print more projects then me working a full-time job wich means if i have a 5 hours print i'll loose another 3/4 hours due to work time.

    in any case the nicotine is going to be a problem (and I thought it would be) so i'll have to think of something else or try getting him to stop smoking (Wich is like telling a kid he can't have candy)

     

    3D printer environment

    in Coffee corner

    Posted

    You can put a dust filter on the filament to make sure no cat/dog hairs get in there. I designed this one a while ago, but there are plenty of other alternatives if my approach isn't to your liking:

    http://www.thingiverse.com/thing:190118

    Also if your cats/dogs are curious you may want to enclose the printer so that they don't get hurt if they stick their nose/tail/paws in there. Fast and hot moving parts and all that.

    As for the smoke... perfect opportunity to stop that nasty and EXPENSIVE habit ;) Ugh, I can't understand that people are (sorry, but I have to) stupid enough to still smoke these days.

     

    Luckey I don't smoke the idea was to place the printer at a friends house so he can watch the thing running (works from home) and he does smoke ;)

     

    3D printer environment

    in Coffee corner

    Posted

    The most important things are:

    1 Prevent that, adhering to the filament impurities get into the material feeder.

    2 A room with low air movement should suffice.

    3 Prevent large temperature changes.

    3 No nicotine / tar settles everywhere, above all, to the fans, but also to the mechanics.

    4 Regular maintenance of the machine: oiling, greasing, inspect.

    5 Have fun during printing.

    We have three cats.

    Markus

     

    yeah so basicly don't use it at a place people chain smoke ;) that's what I thought (and means i'll have to find a way to have someone else babysit my UM2 for a while.

    problem with the cats is I have a persian with long white hairs which are spraying all over the place so the printer room is gonna stay closed :)

    thanks !

     

    3D printer environment

    in Coffee corner

    Posted

    Hey guys,

    As my UM2 is underway I was wondering what the best place would be to start printing once it has arrived.

    i've read dust can clog up the extruder hence I was wondering if it would be a ''bad'' idea to place the machine in a room where people would smoke/have pets (dogs/cats) due to te smoke/hairs.

    are there any guideline's on how far you should go to make a ''clean'' room I know it won't need a white spotless space to print but what would be bad for the printer ?

     

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