mkoic

Ttt

Is there a way to have the top surface and the bottom surface have the concentric pattern while the rest of the layers of the top and bottom use the line pattern? What I'm thinking is that in some cases it would be nice to have the strength of the 90 deg alternating line pattern for most of the top and bottom, but for cosmetic reasons have the concentric pattern on the outermost skin layers. So far, playing with the settings I've only been able to have the following combinations. 1) All bottom and top layers lines. 2) All bottom and top layers concentric. 3) First bottom layer concentric, remaining bottom layers lines, top layers all lines. I have not been able to create first bottom layer concentric, remaining bottom layers lines, all but the final top layers lines, final top layer concentric. Also, what does the Top Surface Skin Layers setting do? I haven't seen it impact anything in the preview.

Any reason there can’t be context appropriate links to the descriptions and images in the Ultimaker Print Settings web pages? https://support.ultimaker.com/hc/en-us/sections/360003548619-Print-settings

I ended up increasing flow to 115% for the first layer after resuming and also leaving the cooling fan off for the first two layers after resuming. That seems to have fixed my adhesion issues with the TPU. Hopefully a moderator will still look at the layer issues discussed above with this extension.

Thanks for the clarification on the flow setting. The design is actually from Thingiverse. It makes use of some lure making hardware that can be purchased and that is supposed to drop right into the cutouts. I agree with your comments, but I want to give that design a try since it wouldn’t require making my own wire structure. It does look weak, though, and like you I thought a solid wire connecting things would be better. I do hope a moderator will take a look at the discussion above and at the files I attached and provide some input on the behavior I’m seeing.

Thank you for the reply. I do understand your point about not returning to an existing layer and that being a bad thing to do. I’m printing TPU, though, and the layer after the pause is not bonding well at all with the previous layers, so I thought (not understanding the way the extension is supposed to work, I admit), that revisiting an existing layer would possibly work and cause no harm with the TPU having some give. I am curious, however, why the display on my machine clearly showed z=4.3 the first layer after the pause, then it went back to z=4.1, and then back up to z=4.3? From what you described, that should be impossible, shouldn’t it? I do like your option of adding some code manually to increase flow. For TPU on my machine, I already use a flow rate of 114%. Would I do M221 S130 (or so) and then M221 S114 to return? Or is the S100 100% of my set flow of 114%?

Could the slider on the right side of the GUI that shows the layer number also show the layer height in mm, please?

I'm experimenting with the Pause at Layer extension. I'd like to be able to have a print pause so that I can insert a metal insert, then resume and have the insert captured. I want to pause after completing Layer #20. This happens to be at height = 4.1 mm. I've attached an image of that point, as well as one of the next layer, #21 (height = 4.3 mm), and my settings for the Pause at Layer extension. My gcode, .stl, and .3mf files are also attached. One of the settings is "Redo Layers", and I selected to repeat 2 layers. What I EXPECTED to happen is: Layer 20 completes. (h=4.1 mm) Pause is executed. I press to continue. Layer 19 is repeated (h=3.9 mm). Layer 20 is repeated (h=4.1 mm). All of the remaining layers are then completed starting with Layer #21 (h=4.3 mm). What ACTUALLY happens is: Layer 20 completes (h=4.1 mm) Pause is executed. I press to continue. The tool paths for Layer 20 (or maybe its the paths from Layer 19) are repeated, BUT not at h=4.1 mm. They are instead run at h=4.3 mm. Layer 20 is then repeated AGAIN, this time at h=4.1 mm as expected. Layer 21 is then executed at its correct height (h=4.3 mm). The result of this is that I'm not getting the desired improvements to layer adhesion when the print resumes because it is run at the next layer height instead of repeating on the previous layer's height. Test_TPU0_4sunfish.3mf test_TPU0_4sunfish.gcode sunfish.stl

I’d like to see this as well. I’ve had parts I was printing out of nylon that were warping so badly that they ripped away from their brims. The brim stayed securely attached to the bed, but because it was only a single, thin layer the part sheared away from it at the connection point. I suspect that a two or three layer brim could have resisted the tearing.

I had seen a different rule many places, that line width should be 125% to 140% of nozzle dia and have also read that other slicers automatically do this. I was wondering why Cura defaults to line width = nozzle dia?

I looked back in the project file, and I made a mistake with the scripts. On the first pause, I selected to pause at "Layer no." which is what I wanted to do. But on the second pause, I accidentally went with the default of "Height", so it wanted to pause at 55 mm but my part was only about 37 mm tall. So let's chalk this one up to "operator error" :) If this extension is ever edited, maybe that selection should default to blank or say "Select" until the operator makes a choice, rather than having a default of "height".

I tried the generic Pause at Height script last night. I wanted it to insert a pause at two different layer heights, in my case layer 33 and layer 55. When I ran the part, it paused perfectly at layer 33 and resumed when I told it to, but it never paused at layer 55 or at any other layer. It just ran the part to completion. This was in 4.6.0.

Actually, maybe I misunderstood you. I don't have Cura on this machine, but I think you're telling me that there's a plug-in that will let me add pauses at layers, right? I'll check into that when I'm home. As for the first use case (after a support roof is completed), manually entering a pause for each support roof could be time consuming if there are multiple elevations that are supported. Having Cura automatically do this would be helpful.

Thank you. That's helpful if someone knows Gcode, but I would think that it would be more user friendly to have a way for it to be implemented through the Cura interface. Would this be something difficult to do?

Hello. New to the community, but I was wondering if it has been discussed to add some options to pause prints through Cura. What got me thinking about it was the video below. I could envision a couple of use scenarios where pausing at defined times would be useful. 1) Pause after a support roof is completed - as shown in the video, this would allow you to have no z-distance for the top of a support. Complete the support, pause and move to a defined location, allow the user to apply a support release agent manually (via pen, brush, etc.), then resume printing. 2) Pause after a designated layer is completed - would allow for installation of thread inserts or nuts within a part (or other types of hardware) I think that this capability would be very useful.