ultradryan
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Posts posted by ultradryan
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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. -
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.............
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@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.
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28 minutes ago, kmanstudios said:
Another person who is not familiar with the two concepts through experience.
What Cura does is general, world scaling and nothing else. What is being requested is precise scaling, and to do it right, requires separation of world and object space. In Cura now, try to rotate the object off a 90¯ angle (say 30. 45 60) and then scale... what do you see?
Again. When you get around to actually using a modeling program, you would see the difference.
If you have to ask, see above....
Then try to use it as a slicer.
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.-
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4 hours ago, P3D said:
I have to agree with @kmanstudios. That is definitely not what Cura is for, and neither should it be included. If you want to scale in Cura, you just have to know the as-exported dimension of the feature you want to be a certain size. After that, it is a matter of very simple calculations, and then entering the percentage in the Cura scaling tool. If you need very exact dimensions or more than simple scaling, you have to do it in your modeling application, where you can comfortably parametrize your model, locking certain dimensions while scaling others, just as you wrote. Maybe you'll even be able to make a script which puts out the models you want semi-automatically.
I'm all for integrating useful features, but Cura (or PreForm, or any other slicing/3D-print-preprocessing application) just isn't the right place for such features. (By the way, measuring dimensions on a STL file is not as easy as you might think, since it is a polygon model, as opposed to the usual feature/geometry based CAD data formats).
By the way: What would be *really* useful is a 3D mouse support for Cura!
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.
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4 hours ago, kmanstudios said:
That IS modeling. Not slicing. Again, get a program that is made for this and can work in a more efficient way. Crazy stuff like independent world and object spaces.
I honestly think that until you have some real experience with what you are asking a program to do, and you will not get it as long as you refuse to actually see the difference in what you are asking i.e. using a modeling program, this will never be a productive conversation. You refuse to accept information from a group of people that have a lot of experience in what you are asking, and them telling you that modeling programs are the way to go with this.
so, stick with your insistence if you like. It is not really a good idea. It is far more complicated than you think. And when it is said and done, Cura Devs are working hard to make a solid slicer, not a halfassed hybrid. I believe that a solid slicer should be all they focus on.
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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4 hours ago, Brulti said:
I will assume that you mean that the override option is not working on your printer, not on the computer.
That is normal behavior as far as I'm aware. The override is done via CURA Connect in the browser, trying to do it via the printer doesn't works despite the printer screen giving you the option to do it.
Same with custom materials since they exist only in Cura and not on the printer, thus you cannot select them on the printer itself.
ah about the override option.
It's new feature in CURA 3.6.0 the software on computer, not the printer, it's under the Monitor tab.When a print is sent and requires action to override, there's an [override] button on the bottom left corner of the queued item.
The idea is so that ppl dont hv to open the browser every time to override it CURA Connects i guess.
I think it's new becuz i didn't see this in CURA 3.5.
When i clicked the button, there's a pop-up window asked to confirm override and start print anyway, I click YES then nothing happen.I however can do the same using CURA Connects in browser on the other hand.
Just curious if the new feature just not working on my computers or not....?
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about this version of CURA, the override option is not working on my computer, I click the override button, the warning popup asking if accept, I click ok, and nothing changed. The print is still not starting, requires actions and the override button still exists. I hv to do it on CURA CONNECT in browser, is it me or anyone else hving the same issue?
And when i created a custom brand of material, it requires me to override settings every time I send print. Is this normal? because when I change (third party)filament i can only choose e.g. Generic PLA, is it not?
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can someone take a photo pointing out the cable? i am not sure where it begins on the printhead... I keep hving this error and my local vendor sucks at providing support.
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On 2018/1/28 at 2:33 AM, gr5 said:
If you really want you can program the AA core to think it's a BB core. UM seems to think it will clog more easily but like kman says - what do you have to lose?
If you want to disassemble your core to get at the nozzle more easily or to swap nozzles (with what though?) then here is a video instructing you how to do this that I created:
If you want to make your AA cores think they are BB (otherwise the printer refuses to send PVA through it) then here are instructions:
Frist put your UM3 into developer mode - it's in the menus on the UM3. Your machine needs to be on your network (wifi or ethernet) if it isn't already. Once it's on the network it will show the IP address at the top of the main screen.
Next you need ssh which is built into linux and Macintosh terminal but not windows. For windows I recommend putty:
https://www.chiark.greenend.org.uk/~sgtatham/putty/latest.htmlIn putty you don't type the "ssh" part but just put the ultimaker@111.222.333.444 part and click "open".
ssh ultimaker@1.2.3.4 (don't enter 1.2.3.4 - enter the ip address listed on your UM3)
username/password:
ultimaker/ultimaker (much easier than root/ultimaker as it takes you straight into the utility to do sendgcode)Choose the type and size from the list below - T0 is left slot and T1 is right slot so before running any of these make sure the core you want to program is in the left slot if it will be AA and in the right slot if it will be BB
After programming the core, slide it out and back into the slot at which point the UM3 will re-read the eeprom and realize it's new state. The software that does X,Y,Z offset calibrations for a core goes by serial number and that can't be changed so you shouldn't lose any calibration data when you do the below changes.
AA 0.4
sendgcode M151 T0 A8 D7800000000004141
sendgcode M151 T0 A16 D20302E3400000000BB 0.4
sendgcode M151 T1 A8 D7800000000004242
sendgcode M151 T1 A16 D20302E3400000000AA 0.8
sendgcode M151 T0 A8 D7800000000004141
sendgcode M151 T0 A16 D20302E3800000000BB 0.8
sendgcode M151 T1 A8 D7800000000004242
sendgcode M151 T1 A16 D20302E3800000000AA 0.25
sendgcode M151 T0 A8 D7800000000004141
sendgcode M151 T0 A16 D20302E3235000000BB 0.25
sendgcode M151 T1 A8 D7800000000004242
sendgcode M151 T1 A16 D20302E3235000000AA 0.4
sendgcode M151 T0 A8 D7800000000004141
sendgcode M151 T0 A16 D20302E3400000000BB 0.4
sendgcode M151 T1 A8 D7800000000004242
sendgcode M151 T1 A16 D20302E3400000000AA 0.6
sendgcode M151 T0 A8 D7800000000004141
sendgcode M151 T0 A16 D20302E3600000000BB 0.6
sendgcode M151 T1 A8 D7800000000004242
sendgcode M151 T1 A16 D20302E3600000000AA 0.8
sendgcode M151 T0 A8 D7800000000004141
sendgcode M151 T0 A16 D20302E3800000000BB 0.8
sendgcode M151 T1 A8 D7800000000004242
sendgcode M151 T1 A16 D20302E3800000000if do this, make a HardCore 3Dsolex into thinking its a .25core and set UM3 back from developer mode, the HardCore will show up as a .25core in CURA and stays that way until i change it again right?
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I too hv the same issue... it's quite annoying, it will be great if it at least warn me and accept to override in CURA rather than the web interface...
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I m considering rolling back to previous version of CURA on my UM3.
Using third party material, it gives warning message every single time. It's ok in previous versions where I can accept the warning and print in one button.
Now, however, I hv to accept the warning message on the printer, then go back to my computer, open CURA connects in browser, go to print job section, select the job, open the tab, and then accept the "override configuration" warning. For god sake it's a lot of annoying steps.
It takes a lot of steps to get it start printing. I cant even do all this in CURA, and I cant do this in prior. I can only accept "override configuration" in the queue just before the print is going to start.
I created custom material from cloning an existing generic material as suggested, but still i hv to walk through all of the steps above on EVERY SINGLE print. Is there a way to avoid that?
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I m considering rolling back to previous version of CURA on my UM3.
Using third party material, it gives warning message every single time. It's ok in previous versions where I can accept the warning and print in one button.
Now, however, I hv to accept the warnning message on the printer, then go back to my computer, open CURA connects in browser, go to print job section, select the job, open the tab, and then accept the "override configuration" warnning.
It takes a lot of steps to get it start printing.
I created custom material from cloning an existing generic material as suggested, but still i hv to walk through all of the steps above on every print. Is there a way to improve that?
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I am printing PLA filaments.
I am experiencing under extrusion after printing for a while and later filaments not coming out of the nozzle at all.
I checked everything, feeder, nozzle etc. every thing works fine but.
When fail/clog happens:
If i remove the bourdon tube from the print core, feeder extrude filament just fine.
Then if I manually push filament(a fresh piece of filament or cleaning filament) into printcore, it extrude from nozzle just fine.
I noticed that the reason is filament going into the hot-end swells/enlarged/thickened up. and it seemed to be the reason why it is not pushing through the core:
Does it meant that I am printing in a temperature too high that it somehow melt and swells the part of filament before it reaches nozzle? Or am I printing in temp too low that the filament cant get liquefied enough to keep on the flow so that it stacks and builds up? Or is that a result of wrong retraction setting?
I am using everything default on CURA PLA setting on extra fine profile, except for the fact that I try printing in high temperature (220C~230C).
Any Help?
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definitely turn off zhop.
Yes the .25mm nozzle is less forgiving. The .4mm nozzle with .2mm layer heights often looks better than .05 layer heights. The thicker the nozzle and layers the more forgiving things are.
But you should be able to print a nicer looking benchy with .25mm. Let's hope it's just the zhop issue. I'm wondering what else you might have messed with. Bed temp should be at 60C max (no hotter). 60C should be fine. 55C might be slightly better. I see the hull overhang could be better - are your fans at 100%? You want as much fan as possible with this model and with pla in general.
Yes the bed is at 60C and 100% fan, will turn off z-hop and give it a go.
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Turn z hop off. It makes your print worse.
Also what is your minimum layer time?
Z axis issues give overextrusion and underextrusion and adjusting temp won't help. Only fixing your z axis would help. Looking at that picture it could be the case so you should clean It.
Is there a particular reason why z-hop make things less stable on a .25 nozzle but not (so much) on the .4mm nozzle? I thought this function is to help print better in overall?
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@gr5 If you look closely then you will notice that not all the over extruded sections are throughout the whole layer. just parts of the layer. This leads me to believe it's not the Z axis. It could be Zhop though as it can cause this. There are also lots of little blobs which could also be from Z hop or retractions or something.
Sticking to 0.1 layers till you get it right is a good idea but you can definitely go down to 0.06 layer height. Just don't go below 0.04.
This is on 0.1 layer, so you think the Z hop and retractions is the issue there?
Assume this is not the Z axis problem, or over extrusion, I hv read a few on internet but i couldnt quite understand what the implication of it on a small nozzle yet. What I comprehend is that these are to help with the quality of print by avoiding overlaps and dripping of filament that also causes stringing/ringing, which I dont exactly know how this play to my print. I hv set retraction to 4.5mm, and Z hop 2mm, and I am not sure, to improve this print, should these value go lower or higher?
If this really is over-extrusion issue like @gr5 mentioned, i guess lower temperature might help?
Not so sure which would be the more likely problem, it seems on 0.4mm nozzle things looks smoother at 0.1mm perhaps it's more stable and forgiving. Will try more prints.
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ABS is quite difficult to print. For me it took about 50 prints before I was getting consistent satisfactory results. But you won't get the same quality as PLA I believe. For one thing it helps to enclose the printer to bring air temp up to 35C. Another trick is to use very little fan (about 1% on the UM3 which is about the same as 30% on UM2).
Your benchy is MUCH better but you can improve still more. I see horizontal banding that I associate with Z screw issues. How clean is your Z screw? I would try to remove all the grease and dirt from the top half of the Z screw. Realize that there are 3 helixes and you have to clean all 3. Find some kind of gentle tool (plastic or wood maybe) that sticks into the screw grooves. Try to remove all grease and dust and dirt. Then you can re-apply some grease if you want but probably not necessary (the bottom of the z screw will still have some). One pea-sized drop of grease is enough for the entire z screw.
WD-40 is good at removing grease but can also be messy. If you want to get really serious, then remove the entire screw from the printer and clean it over a newspaper with WD-40 and wipe completely dry and clean. While the Z screw is out you can slide the bed up and down to check for friction in the vertical bearings.
I see, my printer was bought just a month ago and... hopefully it's just becuz me putting it into too much printing. So you think horizontal bending there's the main reason that it didnt went as smooth? could there possibly be other reasons (except Z screw) is causing that?
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The print can be greatly improved but this is something you will learn over time.
The temp is lower then the recommended because of the small nozzle, print speed and layer height.
Recommended speeds are normally for 0.4mm nozzle printing from 0.1 to 0.25mm layers.
So if you used the 0.25mm nozzle then yes you would want to drop the temp. But ABS has bad layer adheasion and makes weak prints so I would advise against using it at low temps.
So if i am going to tune for a thinner layer, say down to 0.06mm, should I adjust the temperature to even lower, and stay away from adjusting the flow?
I used a repRap Delta printer before and it wont print ABS, so I maybe getting a little ambitious and a bit over excited here about trying to do it on a 0.25mm nozzle.
Would you use ABS on a 0.25mm nozzle or should i be better off forget about it, and be happy with the 0.4 nozzle for stable outputs?
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Just some thought.
at first, before I get used to CURA, I messed up a few prints becuz of misunderstanding how the profile is set up for 2 nozzles.
Now of cuz I know a profile will remember both. But when I used it for the first time I thought each profile is for setting of each individual nozzle.
Here's what I think:
Would it be better if a profile represents setting of each nozzle individually?
At times I want to switch nozzles on just one of the slots. Then I hv to change the setting of one of the nozzles manually, becuz it does not allow me apply setting of just one nozzle from a profile to another, which is kind of annoying...
would any UM3 users here second my thought? or is it just me find this annoying?
Oh, and the camera (on windows) sometimes freezes after a while. Also, it might require me to reconnect the printer when it happens, while it wont say it is disconnected, i wont be able to start a new print by relaunching the software (or select a new printer and switch back).
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0.1mm Layer Height
0.2mm Line Width
100% Flow
30mm/s Speed
180C Temp
I am happy with this, or can it be improved?
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Just curious.
With PLA, my setting is about 20C lower than the recommended printing temp, so it's 200C - ~20C = ~180C.
If I now start working on ABS, would it be roughly the same? like, 20C lower than the recommended temp and keep every other settings the same?
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Thanks @Labern , @Gr5 , @swordriff
I just checked my log book (Yes I kept one), my last attempts on the 0.25 nozzle at 0.1 Layer height, 100% Flow, 30mm/s Speed was on the perhaps defective print core.
3DSolex sent me a new one and I am doing a print now at:
0.1mm Layer Height
0.2mm Line Width
100% Flow
30mm/s Speed
180C Temp
It looks good so far and will do one more print to see if it is stable.
Felt like an idiot ha, when I changed so much of the setting before and it turns out how little changes there should be. I continued on testing my new core from the wrong data I gathered on a defective core and perhaps that bought me here (feeling so stupid now). I think things are getting on the right track now. Will post update when I get the print done:)
Here's the fail prints haha:
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At times when under extrusion happens I thought higher temperature and flow will fix that. I will try now with lower temperature at 100% flow, but most of the print fails when infill happens in my previous attempts, but i will try again.
I noticed in CURA 2.x, infill speed is equal to print speed, while most other speed are half the print speed, so i think you guys are right, 30mm/s is still too fast on a 0.1layer.
I made some successful print at 120%Flow, 30mm/s Speed, 210C Temp, at 0.1mm layer height. However that is not stable, and would only work if Retraction is OFF. I will try what you guys commanded.
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I finally had some good pregress.
@gr5 and @swordriff , at last i think one of the reasons might be indeed the flow rate being too low + feeding gear too tight. At the beginig i thought the feeding gear might need to be more tighter to give it better grip in extruding filament to solve the under extrusion issue, but no, to the opposite it had to be loosen up to avoid grinding filament which in turn will cause under extrusion. There's no problem with the bowden tube though (i guess).
I can make successful prints without clogs right now, with some bottom-line i found might be helpful to point out:
(i) at 0.06 layer height, print speed 30m/s, flow must be at least 110% to avoid clogging
(ii) at 0.06 layer height, print speed 20m/s, flow must be at least 120% to avoid clogging
(iii) 0.05 layer height is very unstable, 0.06 seemed to be the lowest layer height that gives stable prints.
(of cuz i might be wrong, that's just what I think I get from all the trials and errors on my own machine
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(I miss-typed "line width" with "layer width")
As you can see, on the left is the best print result I can get yet at 0.06 layer height.
However I hv some quesitons:
- Usually lower print speed gives better print quality, why is this not the case here?
- Does it mean it is possible that I could go with higher print speed (>30mm/s) here without sacrificing much quality?
- How does flow plays with print speed here? Should lower print speed requires higher flow?
- do you think it is possible to improve the print quality here at line height 0.06mm? if so what should i do next? higher or lower speed with lower or higher flow? or sth entire different here?
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I am also testing with 0.1mm layer height prints now at the time of this writing.
It is much more stable and seemed I hv also find the right config to avoid clogged nozzles.
I can now see "ringing" is the most noticeable issue so far on my 0.1mm prints, i hvnt got the chance to took photo yet. I will share the result here soon to ask for advises to improve print quality at 0.1mm layer height.
I am hoping to find 2 sets of print settings at the end of this post in future, one that worked stably for 0.1mm layer height and one for 0.06mm layer height on UM3, so people can have a bottom line to begin with. I think this might help a lot of new comers who uses 3DSolex nozzles, like me
- Usually lower print speed gives better print quality, why is this not the case here?
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latest firmware, UM3 gets error message on start up, BRICKED
in UltiMaker 3D printers
Posted
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.....