lairdb
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Posts posted by lairdb
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I'm having trouble figuring out how to position/align "modify settings" models. When I import the STLs, Cura distributes them around the build plate as though they are to be individually printed -- normally that's fine, but when one of them is just a mask for where I need greater infill, I have to eyeball it back into position -- particularly tricky if I'm rotating the models before printing.
On a closely related note, shouldn't "automatically drop to buildplate" be per-model, or ignored for modify-settings models?
Tips&tricks? Thanks.
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Switch your Ymin and Ymax. For my Simple Metal I have
Xmin 49 Ymin 99999 Xmax 55 Ymax 20And/or don't use one-at-a-time mode.
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1 hour ago, ahoeben said:
See http://github.com/ultimaker/cura/issues
I don't think this has a high chance of receiving developer attention though, since it is such a niche feature for your printer. You can already type the name in the lower right corner (above the size indication)
Can't change the extension, though.
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I'm getting some weird slicing when using a large nozzle size; irregularities, and in some cases, outright air space. Nozzle is 1.0; layer height is 0.2.
Attachment slicer1 shows irregularities in Benchy's smokestack. Slicer2 shows artifacts in the doorway arch; similar artifacts can be found in all the doors and windows. Slicer3 shows Ben (thing:2795629) with even more artifacts, including a set of layers actually completely missing in the smokestack.
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Is there a way to duplicate a machine?
I've been experimenting with different nozzle widths lately, and my plan was to define a second machine with the alternate nozzle; that way as I evolve the settings for Machine_Nozzle10, they don't muck up the good settings I've developed for Machine_Nozzle4.
However, I can't figure out how to easily duplicate Machine_Nozzle4.
(Or is there a more Cura-friendly way to approach this?)
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One question: Did you use "Merge" or "Group"? They are two different things.
As for what merge is doing is just aligning the pivot points and then grouping them together. But, group by itself just lets you create a 'collection' or 'group of models where they are located (Keeping offsets, rotations, etc) and allowing you to manipulate them as if one model.
[...]
Now for 2.5, I have not had seen a layer height difference to be selected. Almost all other functions are, but not that one and a few others. For instance the material options per model are mostly not available.
Edit: I just looked, it is line widths that you can change. But, I see nothing about layer height changes.
Sorry, I did mean Merge, and both Merge and Group are documented here: https://ultimaker.com/en/resources/35686-merging-and-grouping-models
Yes, I cut my model in CAD using an offset plane and load the pieces separately; Merge correctly aligns and associates them -- but Layer Height is not independently settable, even using per model settings.
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In your 3D Package, make sure that all parts have the same pivot point. Bring all parts individually into Cura. Select all parts (Shift + Click or CTRL +A or Edit menu/Select all). Then go back to the Edit Menu and choose "Merge Models". That is how you get them all into one piece. The pivot point aligns them properly. So far has worked like a charm for me.
But, before you do that, select each part individually and go to the icon on the left bar and choose the one with 3 "Hour Glasses". That is what I call them.
That would be your individual settings per model. You can choose the extruder as well as choose options that are available on a per model basis by clicking on "Select Settings".
Thanks! Okay: the good news is that I got Group to work as you describe. Don't get why, or what it thinks it's doing, and arranging several multi-part models on the build plate is fiddly, but it magically works.
Bad news: Layer height is still not selectable per-model. Are you seeing something different? Or is there a patch?
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In cura 2.X you split your cad model into 3 cylinders, load all 3 stl files into cura and merge them (right click after slelecting all) then on left side you can change settings - oh! except not layer height[correction, cura 2.X now does layer height per sub-object also].
Okay, so I'm trying to figure out how to do this, step by step. If I have entirely separate STLs, how do I align them properly? There doesn't seem to be a snap-to-grid, if get the top portion floating above the bottom, even if slightly misaligned, and then click "lay flat" it moves to another spot on the build plate...
If I export my STL as a single file, even after splitting my "part", Cura seems to take it in as a single part, not as a pair of parts. Same is true whether I put some air between the split or not.
Finally, if I manage to get them arranged on the plate -- per-model select settings doesn't include layer height.
Help?
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> May be related to attempting to launch Cura from within an RDP session.
Yes, that is highly likely. Cura requires OpenGL support that is not available over RDP.
Well, just crashing is a little abrupt, but that aside: why wouldn't it fall back to the software renderer? Or allow bitmap RDP transmission of the local OpenGL render, as happens if I launch Cura before connecting with RDP? (See screenshot below.)
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Cura 2.4.0, Windows 10. Event log shows an uncaught c0000005 exception, immediately followed by an uncaught c000041d exception.
May be related to attempting to launch Cura from within an RDP session. (At least, that's the only thing I can think of that's different from the last successful invocation.)
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In Cura 15 one could add substitutions in the start and end GCode, e.g.:
M140 S{print_bed_temperature} ;start heating bedM104 S{print_temperature} ;start heating extruderG1 Z+10 F{travel_speed} ;move Z upThis doesn't work, or has changed, in Cura 2. Clues? Thanks.
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I'm trying to move from 15.04.6 to 2.x (currently have 2.3 and 2.4 installed); I've been able to print PLA with good results. However, I'm having a terrible time getting my TPU to print with 2.3 or 2.4. Have worked carefully to migrate settings that work very well in 15.04.6, and still getting awful results.
Mystified as to what's going wrong, although it looks a little like under-extrusion, but I am frustrated enough to be opening the GCode files and comparing, and that led me to:
Why is 2.4 setting temperature 5 degrees higher than specified?
(Also, if anybody has hints about why apparently identical 15.04/2.4 profiles are yielding great/horrible results for TPU, that'd be great.))
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I'm pretty sure I've seen this mentioned, and people blowing it off as "your video drivers suxx0rs" but it's 100% reproducible for me via RDP, and I don't think RDP should be considered an edge case.
To reproduce: Opeate Cura through an RDP session, load more than one distinct object. Note that you will be unable to select alternate objects (e.g. to reposition or transform.)
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Retract while combing for Cura fixes that thinks for me.
/*
retraction_speed = 80
retraction_amount = 4.5
retraction_dual_amount = 16.5
retraction_min_travel = 1.5
retraction_combing = All
retraction_minimal_extrusion = 0.02
retraction_hop = 0.1
*/
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Try unchecking "combing". This will change things quite a bit. But you still might not like the results. Also if you want really good quality do this:
1) Make ALL printing speeds 25mm/sec (and movement speed at least 150mm/sec).
2) Set temperature to 210 or lower
3) layer height .1mm.
This might eliminate those marks. Or possibly not. But in general printing slower helps because you get best results when the extruder never slows down or speeds up and printing at 25mm/sec allows that to happen for the most part.
Hmm -- I'll fiddle with those ideas. I turned combing on a while back and haven't ever turned it back off; things seemed so much better with. On the other parameters:
I ran that at 0.15 layer height; 0.10 takes soooo long.
My speeds were
/*
travel_speed = 150
bottom_layer_speed = 20
infill_speed = 100
solidarea_speed = 40
inset0_speed = 50
insetx_speed = 70
*/
...and temperature 200 descending to 190 above layer 4.
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So, I figured out that this set of flaws in an otherwise satisfactory smooth compound curve surface...
...is happening because there's a non-retraction move right there.
1) Seems an odd place to put a move.
2) What can I do to make the move less obvious, or force it to a corner, or... something?
TIA.
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By the way your travel speed can be increased to 150 (default) or more up to 250mm/s, this is the speed of non printing moves
I've got a TweakAtZ that doubles all speeds at later 4, so I'm at 150 travel after that.
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(These are, incidentally, my current PLA settings for most uses, plus a TweakAtZ to double speeds at layer 4.)
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There's something I'm not getting about the speed settings.
If I have specified these speed settings:
then does this one actually matter?
IOW, are there any speeds other than Travel, Bottom, Infill, Top/bottom, Outer, and Inner? I think that covers everything*, meaning that if the detailed ones are specified, then the simple one never comes into play. Is that right?
(In fact, it appears to cover bottom twice, but that's a more obscure question.)
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Sorry. The part is already installed and not readily available for a photo shoot. It's also a cover for a Winchester Model 70 bolt action rifle mag well and some people tend to spin into tizzies[...]
Ha -- "trigger warning"?
That's a nice trick. That said, it's not the shape I would have expected; it is a pre-1964?
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Having said that, in the still-weird category:
I updated the model to include top and bottom lettering (added to the same YouMagine link) and in that STL, the 0.1 renders well (if I adjust the layer and first layer to see it at all):
However, if I go back to my original first layer of 0.3, I still get the slicing perversity where 0.06 layer height yields less detail than 0.25:
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@xisle, Yes you are correct, I just downloaded his file and tried it. I does seem to have an issue with the "0.1"
(Aaargh -- retyping this whole post because forum doesn't cope well with multiple tabs.)
Yes, some sort of issue. Even though it looks good in Tinkercad (1.1mm letter height, 0.1 sunk into surface):
...it doesn't read cleanly in Cura. In fact, I can get this if I set silly layer heights:
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Its dependent on your Initial layer thickness. for .25layer height you will need to set the initial to 0.2 to get all details and for 0.06layer you will need to set the initial layer height to 0.1
not sure why, but that's how you get around it.
That's... somewhat counterintuitive.
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Er, sorry about un-published STL. Just Published it.
Aligning "modify settings" models
in UltiMaker Cura
Posted
That's what I needed; thanks. Usable -- you do have to readjust the merged position etc. after, but it's usable.