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Found 1,995 results

  1. I've been having a consistent issue with my new Ultimaker 3. I'm using the Ultimaker brand of silver PLA, with its PVA as a support. However, my printer consistently leaves these deposits of PLA material, only on the back right corner of the model on the bed. It seems like it's not retracting properly when the head changes direction. I am using the UM3 default settings for temperature and retraction and such. What is going wrong?
  2. I got the Bondtech upgrade for my UM2 ext (not+) which means I have a spare stepper motor. I plan to use it to drive an indexed turntable, but I can't find anywhere the specifications and power requirements for it. The sticker is unhelpfully worn smooth exept the numbers1648A. Can anyone help? Motor measures 42x42x49, I think it's 0.9 deg steps..? Thanks, Cairn
  3. hi, I'm printing an eiffel tower but the smaller lines are poorly defined and sometimes unfinished. I am attaching the photo and waiting for your help. thank you
  4. I have a couple questions related to this thread from 2015, where there is a discussion of the nearest neighbor algorithm used to determine the order in which polygons are printed. Ghostkeeper comments: "The first is the order in which to draw polygons, which includes infill and walls and such. For these it first finds the point on each polygon that is closest to the starting position of the path. Then it treats the polygons as points so it can execute a simple nearest neighbor algorithm: Just keep going to whichever polygon is nearest to your current position that you haven't visited yet." 1.) Is this still how the Cura software determines the order in which to print polygons on a layer-by-layer basis? 2.) I am confused by Ghostkeeper's statement and would like clarification. After the slicing step, Cura knows all of the intersection points (or nodes) that the slicing plane made with the model, and it also knows which points are grouped together into polygons. It also knows the order in which the points in each polygon need to be printed, but the actual printing of the loop doesn't matter because the loop starts and ends at the same point. Does Ghostkeeper truly mean that, (a) for each layer, given some starting point, all loops are represented by the point on the loop that is closest to the initial starting point, proceeding with a simple nearest neighbor solution? Or does it mean that, (b) for a given starting point, all nodes on all untraversed polygons are checked for the smallest distance from the starting point, then representing that second polygon as a single point at the node, and so on and so forth until there are no polygons left? If (a), it seems like this solution would be highly dependent on starting node, so how is the starting node picked? Does the algorithm cycle through all potential starting nodes? If (b), I think this would make more sense and yield a better answer, but be potentially costly in testing each "current point's" distance from every node in every other untraveled polygon. 3.) Finally, if the bit of code isn't too large, or there is a comment directly in the code that explains it further, could someone provide that in the comments, along with what file it's located in? I am writing an academic paper for that has a small section in which I would like to cite how one or more popular tool path generation programs solve this problem for the 3D printing use-case.
  5. Hola a todos. Mi ultimaker 2+ ha presentado problemas de apagado repentino mientras está imprimiendo, me gustaría saber si a alguien más le ha pasado y que ha hecho para corregirlo.
  6. RobyRob

    Delete useless support

    I'm using Cura 3.6.0 I wonder if it is possible to eliminate the useless support generated and leave the support only in the hole. Cura generated a support starting from plate but it is useless Many Thanks Ugello.3mf
  7. uselessimpala

    ender 3 having HORRIBLE print's

    Hello i am asking for your help. i have a creality ender 3 using amazon basics pla 1.75mm and i am getting awful prints and even worse retraction i printed a stringing test and a sponge holder, does anyone have a new cura profile i should try and retraction settings? PLEASE HEEEELLLLLPPPPP
  8. I want to use the Ultimaker 3- 3D printer to Print with Very high temperature materials such as: PEEK, PEKK, ULTEM and their carbon and glass fibre variants with print temperatures between 350 Degrees Celsius and over 400 Degrees Celsius. The problem is the temperature malfunction that occurs just over 350 Degrees C, this is the part I need help with, How Can this Be bypassed? the project information: If you choose to do this, I am not responsible for the device jamming from excess paint/incorrect positioning of components during application of C-Coat (TM) given my directions. The Experimental means by which the existing hotend(s) should to be modified in order to prevent the plastic contacted surfaces from bending or melting During Use is described: ---before doing what is described, please clean all oil and dust from the metal surfaces to be painted!--- The entire heating block (Excluding the Nozzle, and the axially adjacent Nut) is Coated with: C-COATTM ceramic thermal-insulation Paint, using a very small paint brush, then leave to dry. raise the bottom of the heat-sink from the plastic holder so the heat-sink no longer makes contact with the plastic holder, either clamp the holder in this position or remove the top holder screw to release the tension in the spring all together, coat the bottom of the heat-sink with the C-Coat paint, then set aside to dry. Now the top screw must be removed in order to release tension on the spring for this step- pull the heatsink assembly all the way back in order to expose the bottom part of the heat sink connector which comes into contact with the plastic holder, now clamp or zip-tie the heatsink assembly in this position and apply a thin layer of C-Coat to the exposed metal surface, leave to dry, then remove to clamp or ziptye and push the coated bottom of the heat sink against the plastic holder face, secure and paint another thin layer on the end of the exposed metal surface, leave to dry, at this paint all of the faces that directly contact the surface of the plastic holder have been coated with the micro insulation paint (C-Coat). C-Coat insulation experinment:
  9. Hello! So I usually like to figure things out on my own but this one has me stumped! My issue and all the information I have so far is as follows I have been using the Cura software ever since I got my printer (I have an Anet A8 that I got a little over a month ago) and so far I love the software. I have been getting my projects off of Thingiverse and have been using the cura software to convert my 3d images to gcode. Up until now I have had absolutely no problems at all. when preparing and slicing the following object cage_supérieure_-_SP.stlcage_supérieure_-_SP.stl (Hopefully you can see the object) everything seems fine on the software. I am able to see each layer and the travel paths and everything seems fine and dandy. However, when I upload this file to a micro sd card and run the code on my printer the printer heats up and gets ready for the print just like it always does but right before the print is initiated the display screen says "Idle" and the object does not print. As my due diligence I have metaphorically scoured the internet for an answer to this problem. The only thing that I found that was remotely relevant to my situation was this https://forum.astroprint.com/t/solved-anet-a8-goes-to-idle-after-warming-up-for-print/2067 but unfortunately this didn't solve my problem. The previous link does over issues with the starting code which makes perfect sense but I have looked at my start code in the printer settings portion and looked at the gcode itself with no luck at all. Here is my starting gcode for reference: cage_supérieure_-_SP.stl ;FLAVOR:Marlin ;TIME:28898 ;Filament used: 6.79001m ;Layer height: 0.1 ;Generated with Cura_SteamEngine 3.6.0 M104 S204 M105 M109 S204 M82 ;absolute extrusion mode G28 ;Home G1 Z15.0 F6000 ;Move the platform down 15mm G92 E0 G1 F200 E3 G92 E0 G92 E0 G1 F1500 E-6.5 ;LAYER_COUNT:800 ;LAYER:0 M107 ;MESH:cage_supérieure_-_SP.stl G0 F3600 X78.522 Y50.847 Z0.3 ;TYPE:WALL-INNER Now, for some strange reason, according to what I learned from the other forum there shouldn't be anything wrong with my start code right? All the same for some reason my printer is having issues reading the code. I tried printing this object with generated supports and without generated supports. what I found was that the first support layer was printed but when it came time to start printing the first layer of the object the printer stopped and went idle. So there must be something wrong with the code. Another Perplexing issue I discovered is that I was able to print one of the other objects found in the downloadable file from thingiverse, which didn't make any damn sense. A note about this object is that it didn't require any support while the object I want to print has two arches which definitely need generated support. PLEASE HELP!!! I am also happy to provide any additional information.
  10. Elle_Dee

    Printing a Mold in PVA

    I would like to use Cura's mold feature to print an object in PVA. How do I approach this? I've tried selecting the object and setting it to "Print Selected Model With: Extruder 2: PVA BB 0.4" and then clicking "Mold" in Special Modes. But when I hit "Prepare," I get the original object sliced as usual, not the negative. If I have the model set to "Print Selected Model With: Extruder 1: PLA AA 0.4" the mold mode works correctly, no problem.
  11. I am printing a fairly basic part in Nylon, and the final dimensions are very inaccurate in X and Y directions. For outer dimensions, the part is 0.3mm too big in X Y, for inner dimensions (hole in the XY plane) it is 0.7mm(!). When compensating with negative "horizontal expansion", the inner hole cuts into the wall in layer view at -0.35, so I have to compensate this in the CAD file... this is not a viable long-term solution! Does anyone know if there is a way to fix this in Cura? Also, the default UM material profiles in Cura generally seem to be rather unrefined and crude, judging from my experience - see the recent thread on CPE issues. When paying this amount of money for a machine, I expect much more, honestly - especially when seeing what quality for example a Prusa i3 for nearly 1/10 the price is capable of. If Ultimaker is serious about gaining industrial customers in the long term (and who else, apart from wealthy hobbyists, will pay ~6500€ for a FDM printer?), they really have to offer a solution that works without endless tinkering. On the positive side, at least in Z direction the accuracy is good so far.
  12. CURA 3.6 and above has been adding lines between the models I try to print. I've also added a pic from CURA 3.3 as that was the last version that has worked for me as 3.4 & 3.5 would randomly send the hot end off somewhere to sit for a couple of hours. My question is, is this something I could have screwed up in a setting or did I stumble upon a bug? If the former, how would I straighten this out? Thanks in advance.
  13. I want to create a Cura plugin to enable a user to label a model. The label would be text on the bed sitting next to the model. The text might simply be text, or include macros, like: "$speed" That, at slice time, is replaced with slice settings, such as the print speed in this case. I'm trying to figure out what hooks I can get into in Uranium (Cura code). I have read this page in the examples there: https://github.com/Ultimaker/Cura/wiki/Plugin-Directory Can anyone tell me, or point me to a link that explains, the set of available hooks? Does anyone have an advice on how a plug-in like this should be implemented? After reading the Tool plugin example at the link above, I imagine how this could be implemented as a Tool plugin, which receives events when the tools active, and then can work with the items in the Cura Scene. Some things I can see that I will have to do: - accept user input, (label content) - possibly consider selection in the scene, so that a user can apply a specific label to a specific item in the scene - replace macros with values at slice time - add items to the scene that get sliced by the slicer Any suggestions? Will
  14. Cura3.3 cannot connect printer via USB. But Simplify3D can connect to the printer. Is it the bug of Cura3.3? Here is the log info. WARNING - [Thread-6] UM.Logger.logException [85]: serial.serialutil.SerialException: could not open port 'COM2': PermissionError(13, '拒绝访问。', None, 5) DEBUG - [Thread-6] USBPrinting.AutoDetectBaudJob.run [37]: Checking COM2 if baud rate 19200 works WARNING - [Thread-6] UM.Logger.logException [81]: Exception: Unable to create serial WARNING - [Thread-6] UM.Logger.logException [85]: Traceback (most recent call last): WARNING - [Thread-6] UM.Logger.logException [85]: File "C:\Program Files\Ultimaker Cura 3.3\plugins\USBPrinting\AutoDetectBaudJob.py", line 41, in run WARNING - [Thread-6] UM.Logger.logException [85]: serial = Serial(str(self._serial_port), baud_rate, timeout = timeout, writeTimeout = timeout) WARNING - [Thread-6] UM.Logger.logException [85]: File "serial\serialwin32.py", line 31, in __init__ WARNING - [Thread-6] UM.Logger.logException [85]: File "serial\serialutil.py", line 182, in __init__ WARNING - [Thread-6] UM.Logger.logException [85]: File "serial\serialwin32.py", line 62, in open WARNING - [Thread-6] UM.Logger.logException [85]: serial.serialutil.SerialException: could not open port 'COM2': PermissionError(13, '拒绝访问。', None, 5) DEBUG - [Thread-6] USBPrinting.AutoDetectBaudJob.run [37]: Checking COM2 if baud rate 9600 works WARNING - [Thread-6] UM.Logger.logException [81]: Exception: Unable to create serial WARNING - [Thread-6] UM.Logger.logException [85]: Traceback (most recent call last): WARNING - [Thread-6] UM.Logger.logException [85]: File "C:\Program Files\Ultimaker Cura 3.3\plugins\USBPrinting\AutoDetectBaudJob.py", line 41, in run WARNING - [Thread-6] UM.Logger.logException [85]: serial = Serial(str(self._serial_port), baud_rate, timeout = timeout, writeTimeout = timeout) WARNING - [Thread-6] UM.Logger.logException [85]: File "serial\serialwin32.py", line 31, in __init__ WARNING - [Thread-6] UM.Logger.logException [85]: File "serial\serialutil.py", line 182, in __init__ WARNING - [Thread-6] UM.Logger.logException [85]: File "serial\serialwin32.py", line 62, in open WARNING - [Thread-6] UM.Logger.logException [85]: serial.serialutil.SerialException: could not open port 'COM2': PermissionError(13, '拒绝访问。', None, 5) DEBUG - [Thread-3] USBPrinting.AutoDetectBaudJob.run [37]: Checking COM2 if baud rate 230400 works DEBUG - [Thread-3] USBPrinting.AutoDetectBaudJob.run [37]: Checking COM2 if baud rate 57600 works DEBUG - [Thread-3] USBPrinting.AutoDetectBaudJob.run [37]: Checking COM2 if baud rate 38400 works DEBUG - [Thread-3] USBPrinting.AutoDetectBaudJob.run [37]: Checking COM2 if baud rate 19200 works DEBUG - [Thread-3] USBPrinting.AutoDetectBaudJob.run [37]: Checking COM2 if baud rate 9600 works DEBUG - [Thread-3] USBPrinting.AutoDetectBaudJob.run [37]: Checking COM2 if baud rate 115200 works DEBUG - [Thread-3] USBPrinting.AutoDetectBaudJob.run [37]: Checking COM2 if baud rate 250000 works DEBUG - [Thread-3] USBPrinting.AutoDetectBaudJob.run [37]: Checking COM2 if baud rate 230400 works Thanks!
  15. I use 3mm material and it no matter what I do it comes out stringy and doesn't print here's a video: https://vimeo.com/user93684507/review/310232189/5c69475deb
  16. Hello, I'm using Ultimaker Cura 3.6, and for some reason when I combine two models (after setting them to different print cores), it leaves a big gap in the model that I can't seem to get rid of. I don't really know how to describe it, so hopefully, pictures help. I also included the project file The first one is of the solid view, and what the model _should_ look like, the second is the line view. Mothman.3mf
  17. Hi there, i am currently struggling with finding working support settings for printing a small figurine: I took the HeroQuest Gargoyle model from thingiverse, combined body and wings within freecad and exported it again as a stl file. Then i imported the combined model into Cura, played a bit with different support settings and tried a few test prints with the following results: (so far) best tree support is generated with branch angle 60°, branch distance 0.8mm, branch diameter angle 2° (i couldn't find other values, where the tree support reaches all neccessary locations, especially under the whip..) Everything except the wings is printed fine. The wings indeed need special attention, as they start in the air with a cone shaped structure. Because the angle of the wing outlines does not reach the overhang angle, the support is not added automatically and i had to use the add custom support plugin to ensure support gets generated under the wings. But the generated support structure is too far away from the wing outline, so the filament gets printed in the air and is messed up (the only tiny touching point at the lowest wing is insufficient for supporting the complete wing structure growing conical to the left/right). I couldn't find any setting to fix this particular problem. Even if i switch from tree to regular support structure, the generated wing support has nearly the same far distance. (see attached pictures) Does anyone has a hint on how to achieve this? Is there a setting to fix this or a possibility to manually add small "touching" support spots? Thanks in advance :) p.s.: rotating the model is not really an option, as the needed support structures would spread over the complete front or back, resulting in rough/unclean surface with less detail..
  18. Futz34

    Minimum Gap Distance

    Hi everyone, I'm running nylon for the first time and the default settings are working pretty good. Not sure if that plays into my question but, what is the minimum gap between parts or walls before they fuse together? Does this have anything to do with tip size as well? I have a ring type form that is not completely joined, which is part of the design. You're supposed to be able to pull it apart The gap right now is .006 in which is roughly .15 mm, I figured it would fuse. Anyone have a recommendation on this gap distance?
  19. Hi am having a strange issue with my print. I made 2 pieces of custom support (shown in black) for the top of the S. This is how I would I would like it to print...however, When I select Layer View, it looks like this. The support material is unnecessarily extended to the build plate. How can I prevent that?
  20. Bonjour, Nous avons récemment fait l’acquisition d’une ultimaker S5 et nous rencontrons un problème. En effet lors de l’impression d’une pièce en PLA avec deux trous, lorsque la buse se déplace d’un trou à l’autre, elle dépose de la matière sur les supports qui se trouvent entre les 2 trous et frotte sur cette matière à chaque passage. Avez-vous une solution pour supprimer ce phénomène ? Type de filament et paramètre température : Tough PLA black – 210°C
  21. Hello every one, and of cause my first post is a problem! So I've been using cura for a while now it's very intuitive i like it, I am also designing my own parts now with freecad and starting with fusion 360. The problem however is not only with things I have designed but with everything i slice. If the object has a hole and then a larger hole outside of it in close proximity as with a surface with a countersunk screw it will slice it so that the outer top hole walls are printed on just infill leaving a small gap. I presume it should use the last layers of the smaller hole underneath and make a bottom surface for the top hole. This doesn't notice on thick walls but they must be thin for this and many projects i do, I tried changing top and bottom layer counts but it seems that cured doesn't recognise it as a different sized hole? Any help is greatly appreciated thank you, Tom.
  22. Bonjour à tous, je suis nouveau sur le site et dans l'utilisation de mon Ultimaker 2. J'ai un souci de cordage et de pâtés comme le montre la photo ci-jointe. J'utilise du PLA chauffé à 200° et la vitesse d'impression est de 2500 mm/min (environ 40m/s). Merci de votre aide.
  23. I understand in the general sense how slicer programs create sets of closed-loop polygons to print for each layer. For a given closed loop polygon which needs to be printed, the tool path generator will know the coordinates and which of those coordinates are connected to each other, such that traversing a set of segments in that order will bring the extruder head back to the first coordinate to complete the closed loop. My question is: By what mechanism does the tool path generator decide which 'direction' to traverse the closed loop? As it is a loop, that loop could be printed "clockwise" or "counter-clockwise", as it were. Any details, and links to further explanations of how Cura determines this is much appreciated. Extra points for insight into whether other software does it differently. Thank you.
  24. Agorism1

    Slicing problem

    I found a BJD doll model and I'm printing it at 50% of its actual size. All the pieces have sliced and printed very well, except the forearm. The problem is this: in the "solids view" it looks fine, but when I apply the "layers view", I see very strange gaps in the upper part of the model. Obviously, when I print it, the output is not the expected. It's the first time something like this happens to me. What can be failing?
  25. Hi guys, I have the problem that on long running prints I get underextrusion during the print. I'm using an Ultimaker 3 with standard AA 0.4 nozzles and PLA. At the beginning everything is normal and looks fine, but after some time underextrusion starts till in the end no material is extruded any more. Afterwards I have to clean my nozzle because it is clogged. I already checked the feeder, this is looking fine. I don't think that it is the material as this is not the first time this happens and not only with this material. Also it just happens in long running prints. I also checked the other nozzle, but there i have similar problems. Do anyone has any ideas left? Thanks in advance

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