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  1. both my ipad and iphone, at home or workplaces, the um3 app is not working. Always says the device is not in wifi network, or when it does(kind of) it never be able to show the camera. Both machines and devices should be installed with the latest firmware update(though cura connects does work fine on browser). Is it just me or is this known issue?
  2. Thanks all, printing slow does fix the problem. At first i thought it's the leveling that caused the collapsing. Printing slow or with a prime tower does allow more time for cooling and solved the issue.
  3. my ultimaker 3 was working just fine most of the time, until i hv to print this egg (with PLA). the bottom left of the egg always got deformed, always the same spot, the bottom left part where it faces the left side of the printer, no matter how i rotate it. I suspected bad bed leveling causes the issue, so I hv tried to do manual and active bed leveling, problem persists, still the same spot gets deformed. It seemed like the egg was cooling down unevenly while print, causing the left side to somewhat accumulate oozing and collapse. Interestingly, I hv no problem printing other things, and if this egg was printed up side down, similar problem does not occur. Any one hv any idea why this is happening? really wanna print it just up right without that deforming. [UPDATE] PRINTING slower or setting minimum layer time does solve the problem. it seemed that the accumulated oozing and collapse was caused by not enough cooling time per layer. Although it is unclear why the part where it collapses always happens on the same spot.....
  4. ok, so i sort of being able to pull the cable cover on the left side. but the one on the right side i.... just cant seem to find the right way to pull it off... Any tricks on that? I need to replace the printcore cable....... and i need to pull that cover off to do so....
  5. ok how do i connect SDcard to the mother board's mico-sim card slot???? i go buy a converter or sth?
  6. Ihv similar issue, but my screen was forever stuck on an error message ER18 after reboot, fail to get into menu screen. normal means to solve ER18 error doesnt work, it just stuck at an error message screen after the logo splash screen and i suspect it's the same firmware issue. I also did not get anything from my reseller yet and the printer is unusable. Struggling whether or not should i try gr5's way to boot from sd card....(yet i cannot do so yet becuz there's no sd card slot on my mother board of my UM3, not sure if different batch of UM3 had different models)
  7. MY UM3 went completely bricked after lastest firmware update it shows ER18 message right after boot up, after the logo splash screen, the machine is completely bricked now since it cannot boot into normal screen menu. YES i know there are Normal ways to fix the ER18 message but they wont work this time, reconnecting the cable at the back of the core doesnt help. It sounds like a software to me. and now i can do nothing about it
  8. hey after the latest firmware updates i am getting a lot of ER18 errors from printheads. usually rebooting or fixing the cable at the back of the core might work. Now the error message pops up right after the logo splash screen , meaning it wont boot into normal menu and it's totally unusable. Does this sounded bricked? can I fix that with the said method?
  9. Yes i know the ER18 "There is a communication error with the print head" can be fixed by resitting the cable at the back of the core for a bit. But this error message starts happening often ever since the latest firmware is installed. Now the error pops up right after the machine is booted up, and nothing I can do to fix that. The machine doesn't boot into normal menu screen, it went straight to the error message after the LOGO splash screen. In other words, it's bricked. How do I fix this.....
  10. with the latest update, cura4 often failed to find the printer, hv to manually add it. the um3 app on both iphone and ipad is not working properly, not getting camera feed and always say that the printer is not in the same wifi network. resetting wifi config is not solving the problem.
  11. i too hv similar issue, but i can manually add it with IP address with the latest firmware. Also the um3 app on iphone and ipad never find be able to get the video feed.............
  12. @johnEclark65 I worked with both mesh-based (non-parametric) and parametric modeling softwares. Tell you what the resizing part I too find it confusing when I first started to learn 3DMax and Blender. They are more organic and at the same time less accurate when it comes to modeling precise objects. Yet That is also the beauty of it, you can do more complicated things easily. I end up building structural parts in Fusion360 into different sizes and export them for use in 3DMax/Blender. These two types of modeling methods each has its pros and cons, resizing them being one of the major differences due to the lack on constraints in mesh-based environment, and STL is a mesh. When working with CNC files, we sent the file to mill on the fly, edit a few features/sizes and send for another mill. It's like editing texts on a microsoft word file on the fly, send for print without saving into each separate versions of files. But honestly this is not a good habit. From management perspective, one should always keep a master and export each different sizes/versions into an seperate one-off file for execution. Thus if you do this, saving STLs for 3D print is much the same idea. Now since the slice engine/software is made to deal with static files(e.g. STL), and it is not built into parametric modeling environment from the beginning, it is doomed to work like 3DMax/Blender, dealing with a mesh object. @kmanstudios would hv fear that if such feature be introduced it could do more harm than good, and I do agree. He was trying to express that your definition of "scaling" isn't quite the same as scaling of a mesh based object. And he might hv implied that you might not fully understand the aspects of 3D modeling concepts, let me try to explain: In theory, you are not actually "scaling" a model when u redefine distance of 2 vertices and expect the whole object will follow, you are actually "altering" the related constraints thus result in a scaling i.e. you are not "scaling" the object but "editing" the variables in the sketch that causes a chain reaction to resize related matters. Thus you are actually "modelling" it. This can be considered not a scaling feature. So I guess if i understand correctly that is what @kmanstudios meant. Then I guess you would understand why many experts here, whom have solid understanding of the modeling concept, might hv express objections on including such method of "scaling". Usually ppl who hv experiences working with both mesh-based and parametric modeling software could really see the the problem here.
  13. He was thinking in a very Parametric Modeling way, that is common in CAD/CAM practice working with constraints and paths, but not in the world of most Non-Parametric Modeling softwares. In Fusion360 or other CAD/CAM that can be easily done with constraints, where I redefine the size of one feature the whole model follows the scale accordingly. However in Maya, 3DMAX or Blender, it's very very tricky to scale to whole model based on adjusting the distance between two pin-pointed points/vertices. Usually we just do the math and scale the whole thing, at best we hv the center point of the object redefined before scaling, but still it's tricky. When a file is exported to STL for slice it's pretty much static and the constraints wont work. The scaling method is much the same as if in Non-Parametric Modeling software environment. Not saying it cannot be done but if such method is introduced(scale whole object based on redefining distance of 2 pin-pointed vertices), it also opens up to a lot of potential errors and too big a risk to meddle with.
  14. I kind of understand why he is thinking scaling with pin points will be logical, since he's from CAD/CAM tool background. And many CAD/CAM tool can just send jobs to hardware right away without problems. Starting with curves, sketches and restraints, and export them into paths. It's all logical in that sense, when it's Parametric modeling. What he might not understand is 3D printers and slicers have to deal with Non-Parametric modeling. Scaling in Parametric modeling world can be easy since they work with constraints and paths, but once a model is converted into STL they became static. What he is asking for is that CURA might hv to allow user to pin-point and select vertices on a model to make scaling accordingly... which can be a nightmare and might require a whole new engine and the whole workflow needed to be reimagined. The mechanics of a 3D printer might be similar to a CNC but no it's not the same thing. I also work with similar projects where i have to export joints and pegs in different sizes and clearances. I use variables in e.g. Fusion360 to make constraints work for models in different sizes and export them separately. Eventually I use scripts to automate that, and I still prefer to keep the resizing/exporting and printing procedures separated, rather than trying to use the same file and print different sizes. It wouldn't be a good way to manage files and bad for the workflow.
  15. I second your opinion @kmanstudios CURA allows to scale models by X, Y, Z or % and it shows the exact dimensions of the object, it's more than enough in all reasonable use cases... it will be more realistic to ask if cura supplies more API for other modeling softwares to interact with it, but not the other way around. Like currently in Fusion360 you can sent and forward the project file to open in CURA directly in one click. E.g. like many 3D rendering engines, there are plugins for modeling software to do shortcuts and send for rendering, but never the other way around.
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