Cura slow down overhangs. I'm not a pro, but this worked for me.

Cura slow down overhangs All setups are different. Definitely utilize the overhang speed setting so you don't have to slow down your entire print. For the best performance, make sure you disable it. I don't know PrusaSlicer, but in Cura there is "Overhanging Wall Angle" which i can set to "45°" so that it will print overhangs above that angle with "Overhanging Wall Speed" like "50%" of regular feature speed. Try to increase minimum layer time (will slow down the print around those parts automatically). I confirmed that "Slow Down for Overhangs" is checked. like 10mm/s. Minimizing post-processing labour involved in removing supports. 1; Prusa Slicer: supported since slicer4rtn 0. If it's a tiny model, or I'm struggling to remove the support, I'll change the interface distance to 2x layer height. 1. Sometimes with Cura I would get bubbling around the overhang. Also, you need to set the initial layers speeds to higher than standard in orcaslicer and make sure you change the 'number of slow layers' to 1 or it will ignore your speed settings Then ensuring that the previous layer is properly set, and that the new layer sets quickly before it can droop, depends on good cooling and slow print speed. Nov 11, 2022 · Hi,Sorry to say that it did not help for long. Jun 26, 2019 · As in, do you write the code for Cura features? The setting is presently handled by multiplying the overall print speed by some decimal amount. The mesh modifier can be any shape. So 100% simply means use the flow that is normal for the walls/skin (as defined elsewhere) and any other percentage just scales the flow as expected. It's a bit convoluted though. The top 1/3 still has those imperfections, but the bottom 2/3 looks good. I'm new to PETG, and after a few prints I've found that overhangs and bridges are a horrorshow. It could be spherical (slow down the speed inside this sphere to these alternate speeds). This is clearly because of the lack of cooling. Top surfaces can have a 30° minimum before they start to look bad. Mar 3, 2021 · fine tune outer wall of overhangs, slow them down--slicer. Also a v before v5, which I used to use, does not have this problem. 5 Jul 15, 2020 · However, since the wall of the first supported layer is only resting on the support interface, this is too high of a speed to properly lay down this layer, resulting in an aborted first attempt. Not sure how Cura does it, but PrusaSlicer it's in the filament settings. Longer layer time + the nozzle doesn't contact the walls that much when printing infill, so it doesn't keep adding heat into the walls. 15 slicer profile , (30mm/s print speed with 60 mm/s infill) i dont think its fast . Back of overhang test Dec 7, 2021 · Unfortunately, this part is pretty tall though, almost 1000 layers, and there are overhangs that put "bottom" portions on probably 1/3 of the layers or more, so it would slow down the print a tremendous amount, almost as much as if I just set the top/bottom speed for the whole print. Yes, @rburema, If that overhang becomes supported by support material, cura stops using overhang settings. Use mold to support structure. Mar 28, 2020 · I've noticed there are a multitude of ironing and overhang specific print settings, but neither includes fan speed, which is probably much more useful than print speed in the case of overhangs. 3 beta introduces new functionality that is intended to improve Cura's ability to print bridges and overhung areas. If you are referring to the little white spots those are the z seam and are unavoidable tho you can minimize and hide them to a degree. I attempted the overhang test again at 235°C, 12. Tried in Prusa and had success right away and didn't look back. As in a title - Could someone explain how Overhanging Wall Angle/Speed works in Cura? I want to slow down the speed for overhangs (automatically) and heard that would be it. Expected results. Jan 26, 2023 · You can use G-code M220 (Set Feedrate Percentage). Cura has bridge settings (may be hidden by default, search the settings menu) where you can control a bunch of stuff. Setting a Minimum Layer Time in the slicer can also help; in Cura, that's 10 seconds by default but you can increase it to 20, 30 or more seconds if you wish. 1mm, slow down perimeters (especially external), set external perimeter extrusion width to minimum (nozzle bore size), use maximum cooling air, if cooling is a problem still don't use PLA because usually a polymer that is normally extruded at a higher temp also freezes at a higher temp, be sure extrusion calibration is correct, not sure what else but surely something can be Dec 27, 2021 · Changing geometry or slowing down the entire outer wall speed and acceleration even though only a small part has overhangs. Where can I download older versions to test ?This problem has to be solved 😡Regards, J More perimeters, 0. more about this here: Dec 31, 2019 · The only solution I have found so far is to simply slow the print down globally (at leas for outer shells) but it really sucks having to lose the speed everywhere else just for some smaller parts of the print. i definitely see some spots where it looks like there was too much heat or more sensitive filament. Check for the experimental settings "Enable Bridge Settings" and "Overhanging wall speed". Mar 4, 2021 · Edit 2: 'Overhang Wall Speed' + 'Optimize Wall Print Order' could in theory prevent this, but the overhang deceleration doesn't work properly. Nov 19, 2023 · Here are 6 tips and tricks on how to keep your PLA overhangs from curling: Increase the infill of your model. It is a gaming laptop that has an intel i7-8750H processor with 16G of RAM and a GTX 1060. EDIT: maybe more infill would also help, for similar reasons. Cool your object down quicker. Dec 25, 2020 · Often times, this is when the print features suddenly "neck down" to a very small layer surface area. Anytime I try to adjust the settings for a print, every There's usually a setting called 'make overhangs printable' that I would set at 40°-45° (or 60°, however it interprets that). These will slow sections of your print down depending on geometry. I've been trying to get my overhangs sorted out all week. So I wanted to have a middle Z section of my print to slow down because it has more details and overhangs. Better to always disable that setting when using silk PLA and just slow it way the hell down. Aug 21, 2019 · I would suggest a parameter to slow down print on angles sharper than a value. An "Overhang Speed," be it mm/s or percentage of print speed, would dramatically improve print quality for entry-level printers. From the damage to of those affected lines, I guessed it might be some filament oozing out of the nozzle and hardening too fast and either ripping the layer below apart or at least preventing the actually printing layer Sep 25, 2023 · TBH, at this point I just turned off “slow down for overhangs. Overhangs with 45º slopes are correctly printed on all materials and hotends, so a solution at the 3D design level is to change an overhang with a greater angle for 45º chamfers. Either increase fan speed, decrease hot end temp, or increase layer time/decrease print speed. The current Cura code base has long had the ability to detect when a skin region spans across islands of support and those skins that Cura thinks are bridges will have the direction of the lines aligned with the detected bridge detection. The only thing is, I put say speed down to 10% , and time of a print stays the same. Am guessing you are printing something that's an overhang? There's a speed setting for it. I'm not a pro, but this worked for me. I set the wall thickness to 3mm and Cura nicely obliged me by laying down the wall from the inside out, which no doubt helped. 8. There's plenty of cooling, and I'm printing slow with this part (30 mm/s). When using minimum layer time 15s and minimum speed 30mm/s cura seems to slow down the outer layers to meet that time, I guess this isn't any different to setting the layer speed to 60mm/s outright. I see this working well for angles between 75-90 degrees where most printers can't handle the overhang using traditional slicing. Affected users and/or printers. This has a disadvantage though. Sep 21, 2020 · Learning how to improve overhangs in your 3D prints is a skill that your print quality will really appreciate. It would be amazing to be able to tell it to slow the speed down for the overhangs (similar to the bridging speeds settings). I get really good overhangs at 0. 5 mm/s speed for perimeters, 25 mm/s for infill, but still kept the fan at 30% speed and the print completed without anything curling up. I have tuned flow various times and have tried multipliers from 1. The only fix now is to set a small speed to outer wall, however, having few corners makes printing any straights equally slow, thus delaying the print unnecessary. Really the only feature missing in prusa slicer that keeps me going back to cura for certain prints. I have been printing on an Ender 3 for about 2 years now and am very familiar with Not really needed. Overhang and temperature tower will help to define this limits. the outer gap on the big arc looks like a flex break from the upper perimeter layers printed. If, after decreasing the speed, you notice signs of over-extrusion such as excessive material on the overhang surfaces, you can fine-tune the flow rate within the slicer settings to reduce I know you said you upgraded your fan shroud, but that overhang gore is definitely a cooling related failure. Unfortunately, this can cause slow down Cura on your PC because it requires a lot of processing power. 0 ? I used the Arachne beta and now remember that there the poblems did not occur as far as slowing down drastically. cura slowing down drastically. . 2 mm layer extrusion down everywhere except a square in the middle, and then a further 0. To wrap things up, slower speeds on overhangs help. I'll lower speed to 10% and angle to 10° and the time shortens ! How come? However there is an option in Creality slicer that i've found to be quite usefull and i can't seem to find it in Cura, can anyone confirm it isn't there or if it is point me in the right direction? "Overhanging wall speed grading" You can essentially tell the slicer to slow down for difficult overhangs. 3mm with a 0. The above settings typically "get me close", and I'll tweak them as needed often I drop the overhang angle down, or increase the horizontal expansion so the supports "wrap around" more. Feb 16, 2018 · Overhang detection already exists and initial layer print speed is a commonly adjusted setting. Thanks for answer! the print in the picture is printed with builtin cura 0. Surprisingly, even PLA shows some differences, although I need to make overhangs way steeper. Jun 2, 2018 · Warp it enough and the nozzle crashes into it, forcing it down. I don’t want to slow down my entire print because of some overhangs, sometimes these are really small features. It is also reasonably heat-resistant, not as good as ABS but better than PLA, and it is as good as odorless. 2 (0. In order to get a proper finish, I had to Tell the Filament-Profile to ramp to 100% Fan speed for everything Change the Slowdown for Overhangs on the 50% / 25% marker down to 5mm/s in order to get proper results. 1mm layers @ 50mm/sec. Set the Jerk within the support blocker to "1". Yep! In slicing, every overhang is technically a 90 degree overhang because when you zoom in, it's essentially a staircase. If you print 0. 0) won't slice if that setting is above 100%. On cura one can print at a very high speed, and set the overhang angle (angle at which a wall is considered overhang), and the overhang speed, so the overhangs are ok even if you print walls at 50mm or so. The calibration cube tends to have some weird issues that don't show up in other prints though so if I were you I'd find some other things to print and see what kind of quality you get with those. I would like to slow down the print for better layer adhesion, but if I do so, the overhangs look worse. The tops of both these cases were printed on my ender 5, the case on the right was printed with overhang speeds set the same as my normal print speed. Perhaps the gcode needs to be generated per printer config. Front of overhang test. Reduce the temperature. Printer: ender-6 with a metal heat break and capricorn tube. 2 mm extrusion down in these purple areas: Then when you slice in Cura set Top/Bottom Line Directions to [0, 90] (or perhaps you could just rotate the square by 45°), and it will slice it like this: And it prints perfectly! You can also change Cura to slow down for overhangs and small parts which might help the parts on the letters cool better. I tried finding a setting to slow down said first layer above the support, but there really seems to be none. Feb 4, 2021 · TLDR: Overhang Wall Speed can be improved by adding additional options to apply the speed reduction to the entire layer/range of layers, or possibly also for a certain distance before and after the overhang. I've adjusted the overhang speeds from 0/50/30/10 to 50/20/10/2, but I realized after a few prints that this doesn't seem to be changing my print speeds at all. @vanssaE Great suggestion how to implement Mar 10, 2016 · I've found that slowing the print speed right down produces the best overhang results, however printing the entire print or relevant layers at such a slow speed is pretty inefficient. (except for maybe . I know you said you upgraded your fan shroud, but that overhang gore is definitely a cooling related failure. You select Per Model Settings / Modify Settings for Overlaps and make "Print Jerk" one of the settings. Too much further, and something will crash into it that will knock the part off the plate (like fan ducts). However the overhangs on the tail were perfect. So my ultimate question is; is there a setting a cure that allows me to customise the speed that the first layer above supports prints at? Although I do notice that while printing overhangs will curl up a lot more. Set this to 100% and leave your normal fanspeed as it is for the rest of the print. Get a better cooling duct, one that cools from both sides. You need to first identify the part that needs to be printed slowly, an online G-code interpreter can help you visualize this. To get good steep overhangs try to remain layer height/nozzle width at 1/3 or less. Did you check the 'overhang' speed. 1mm and decent ones at 0. 0, v4. So if you have parts with overhang and "slow for overhangs" enabled you'll get vertical banding where the external perimeter speed changes. Test your printing speed. Mar 10, 2016 · I've found that slowing the print speed right down produces the best overhang results, however printing the entire print or relevant layers at such a slow speed is pretty inefficient. Every time Cura slices through the blocker it will add M205 X1 Y1. - increase part cooling ( the faster the printed line cools down the less chance of drooping ) - slow down on overhangs ( in cura the setting is called "overhang wall speed" and "overhang wall angle" ) that also helps cooling it down. But overhangs came out shitty: I had: 0% fan @ 35s 20% fan @ 5s 100% fan for overhangs I then adopted the bambu ASA fan settings (leaving everything else the same): 25% @ 35s 90% @ 3s 80% for overhangs The result is much better Mar 7, 2023 · Next I disabled Slow down for overhangs and massively increased Bridge speed t0 200mm/s and all the artifacts had been gone. Well, from the video it is clear that your printer currently cannot even cool down the plastic which is without overhang, so you are printing too fast. perhaps adding a few anchors to the build plate Jul 27, 2023 · Bambu studio isn’t very clear how the “slow down for overhangs” feature works and from my perspective it doesn’t appear to be slowing down at all. I’ve had some pretty poor overhangs in the past, so I decided to set out and figure out the best methods to improve them. Here's what you need to do: Load your model / scene in the build plate. Do you have something like this enabled? Give Cura a try for that one piece. Or just rotate the model so most of the overhangs are on the side that you have a cooling duct on, for exaple ic you have a cooling duct on the left of your nozzle, the frog should be pointed to the left with it's head So I turned off "Slow down for overhangs" and made the fan go 100% for the whole print. The issue is Prusa is still unable to treat overhangs separated from bridges and optimize its printing. Mar 27, 2018 · Introduction. Filament: Esun gray petg I've simply used the cura default . Jul 20, 2013 · My best results were at 210c where I was able to get perfect overhangs -- both unsupported and bridged -- at 69 degrees with . The 3. But my gut feeling tells me there is a link. cube fails in inverted cone space; Cura Engine: not yet Print the bridge slow AF. It would be really cool to automatically decrease the speed and increase the fan intensity progressively, depending on the overhang angle. It actually isn’t as hard as I thought. I had dialed the fan speed way down to promote layer adhesion, except for overhangs. 4mm nozzle, profile from makerworld) I then tried the print again with a 50% slow down from the previous settings in overhangs, which resulted in better overhangs, but still not acceptable. 01 down to . There's some stringing but no more blobs of filaments. When I set overhang wall angle to print at 10mm/s I get what I think is over extrusion. I'm using Cura as my slicer and have tried various temperatures, speeds, and layer heights. Small overhangs that would otherwise need a tall, skinny tower. If the layer is very small, then the heat of the nozzle waiting next to it can melt it. Jan 14, 2023 · Essentially I added a 0. Load an additional cube and make it as big as the entire build plate so that it overlaps with everything (in the preferences you may need to disable "Ensure that models are kept apart). However, there are certain combinations of materials and hotends with which you can print higher-angle overhangs and, if necessary, create chamfers with angles That would both slow down your layer time, as well as make for a smaller overhang (so there's less material to sag). 5. Mar 7, 2018 · Cura just implemented a slow down on overhangs, its awesome. 93, and experience the same surface roughness. Slic3r: supported since slicer4rtn 0. (X1C, 0. external-perimeter-speed=10% (Slic3r) support more slicers. Screenshot showing feedrates. The designer of the model had some support in earlier versions but he removed them insisting it prints fine. You material is flowing out too hot and you need solve this reducing the temperature printing or using a better cooling system to cool down it faster. More cooling the So I've gotten comfortable with Cura but I heard of a setting in SuperSlicer to slow down overhand prints speeds in addition to turning on part cooling. What box? It appears that the speed change only affects the outer walls. 5C. 2 layer height. I'm printing in PLA and have two fans blowing on the print. 1mm) As I watch the print I can see that the top most layer curls up as it prints. But some overhangs are just impossible, a curved bottom is one of them, the first layers are basically 90 degrees overhang, would do better with a chamfer than a fillet so to say. 0. The profile defaults state a speed of 50mm for overhangs between 25% 50% and I can without a doubt definitely say my printer did not slow down to those speeds while printing the overhang Basically you want as much cooling as absolute possible, turn everything up to max, open everything, slow down the speed. You can also define when Cura recognizes an overhang as a bridge and thus prints with the special bridge settings. Cura can do this. So I had the idea to use the Overhanging settings to speed up the print for those parts but Cura (3. Originally thought it was layer shift. 5 C now , its generally between 23C and 25. 6 or greater nozzle with a capable CoreXY machine. Mar 29, 2022 · Also, if the layer is too small and the nozzle can’t slow down further, you can set it to wait and lift at the end of the layer until the Minimum Layer Time is complete. The biggest problems I have with PETG are overhangs, especially on curved shapes: they tend to Nov 29, 2021 · Automatic slicing is an option that re-slices the model each time you change the print settings. After slicing one item, and removing it from the bed with ctrl+d cura is slow again. Mar 27, 2018 · It is simply a multiplier that is based on whatever the flow would otherwise be. I like printing practical stuff in ABS but the supports are a pain and overhangs are terrible since all I can do in Cura is turn on the fan for the overhangs. printing again with it turned off. 0 installed and as far as I can remember that version did not have the bug also. THere are 2 things that help printing overhangs without supports: decreasing speed, and increasing the filament-cooling fan speed. ” Whatever that Prusa proof test was which compared Bambu to whatever new hotness Prusa was pushing - where in the video it showed Bambu having super globby overhangs when slow down was turned off - apparently was completely false news. 2mm layer height, 0. E. Did you use the cnckitchen one? they seemed to get pretty amazing results. Make it print super slow. I didn't want to mess with flow, honestly. 1 (used by creality slicer does not have this problem. Layer height is essential for good overhangs. Aug 31, 2018 · I found with my printer, if I left the travel speed at the usual setting (40-50mm/sec) then my overhang tests would only get about 50-55 deg, but if I dropped the speed to about 10mm/s then I could get results much closer to 75-80deg overhang meaning I could print much more complex parts with less support material. In these special bridge settings you will find three of the most important settings for perfect bridges: Print speed, flow rate and fan speed/cooling – only the print temperature is missing, which you should test and optimize To get it as accurate as possible I want to slow down that layer to just 10mm/s to let gravity do a bit more work and stop the hotend from dragging the extruded lines around the place before they cool a bit. The bit with the seam placed properly is perfect (or as much so as my bot can do right now). Working smooth as in v5. I even had v5. Something is very wrong with cura as of v 5. 45deg overhang, corners curling visible 45deg overhangs, front-right corner (on the picture it's front-left because the print is upside down) perfect, but the other front corner not so much 45deg overhangs, back corners, disgusting. Use thinner layers. Jan 30, 2023 · Or you can use a mesh modifier which can say "inside this second STL modify the following settings". If one side has worse overhangs that means problems with cooling. So 2 values - angle threshold and a percentage of downspeed. It runs Fusion360 like a champ, and can game tremendously well, but for some reason, Cura runs super slow. This way, Cura waits until you’re done with all the changes before slicing. Fixes curling on steep overhangs and gives nice and smooth walls. The ukelele didn't have many (any?) bumps as the overhang got more vertical than 45 Mar 8, 2024 · I’ve had a P1S for a couple weeks now, and apart from printing a few items off of makerworld that turned out well, I have not been overly impressed with the surface quality of my prints. Edit, sorry it seems slow down for overhangs didn't actually get turned off. 1 was broken) but often refuses to slice model, e. Apr 20, 2014 · Also you can control the print speed as it is printing so you could set it to print 50mm/sec in cura and then slow down to 50% print speed for the first - heavy overhang - area. Also you might want to play with the Z Seam settings in the Walls category because I really wouldn't want to have my printer start a layer (the white marks you can see in the bottom right corner) on an overhang like that. Should I do this? Start of detailed section: Change at Z: layer 65, Speed 50% End of detailed section, speed back to normal: Change at Z: layer 120, Speed 100% Do I need to mess with the feed rate or other parameters? If you change either during printing, you change the sheen visibly. By creating a setting that would allow users to adjust the print speed depending on the overhang amount would greatly improve print quality. In these settings you will also find fan speed for bridging. So I'm thinking; there must be a trick to it. Maybe slow down overhangs if there is a separate settings for that. I have a model with tiny overhangs that print better at higher speeds. Aug 27, 2024 · Slice with default Voron profile (I think this doesn't matter too much, as long as Arachne and slow down for overhangs are enabled) Check the Gcode output for the outer walls and notice the E-steps being wildly varied; Set Wall Generator to "Classic" and enable Overhang Speed "Classic mode" and notice the E-steps being stable; Actual results Feb 23, 2022 · So you take a support blocker and size it and place it covering the overhang. It is a very nice material, because when printed properly, results are incredibly robust, have a nice glossy finish, and can be quite transparent. So definitely progress. Sep 2, 2019 · I have had my laptop for a few months now. is that too hot? Is there a way to slow down the print speed on overhangs like with cura? Im having a issue with prints that sit on the support, the print speed for them is to high and just knocking off the supports, Nov 8, 2024 · Turn on enable_overhang_speed; Have slowdown_for_curled_perimeters turned off; Set bridge_speed (external) to a suitable value exceeding the resulting maximum flow rate (see point 2 for reference); Can anyone explain why the slow down for overhangs function doesn’t slow this down? It’s causing curling and terrible looking overhangs! Latest version of orca slice, generic pla, . Aug 16, 2021 · And as a defined speed (mm/s) to not slow down walls that are already being printed slow). Dec 13, 2023 · When printing 3D print overhangs, reducing the print head speed allows the filament sufficient time to cool down and harden, thus, improving print quality. It doesn't have to be boxy like in your example. All printers are affected (I own a prusa mk3) Aug 30, 2023 · Paranoid idea #2: Slow down the printer while doing outer walls under Speed > Print Speed > Wall Speed > Outer Wall Speed. I sliced the file with and without the changes, and the times are the same down to the second. The default Minimum Layer Time is 10 seconds. Nov 21, 2022 · changing settings in cura. Actual results. Dec 13, 2022 · Interesting result. In my case, with the benchy, if I don't print the inner wall at 30 mm/s it curls up the previews layer, ruining the overhang at the front of be boat's hull, though everything else prints just fine at 100mm/s. My room temperature is 24. g. This forced the layer time from 4. I'd also appreciated a fan speed setting for ironing as sometimes I want no part cooling for the sake of layer adhesion, but having the fan off for Try it for yourself and see. Mechanical issues like belts not being at optimum tension also play a part. When everything is overhang the seam goes back into the corner. My strings are good , i dont get any issue with them but cant find cooling pause feature in cura. If you design yourself, I'd make a chamfer before doing a fillet on the top corner. I have recently started to print with PETG. I usually just hand edit the gcode and add a M106 SXXX command at the appropriate layer, but I really think Cura should handle this behavior! It would also be nice if Cura's Preview layer numbers matched the layer numbers in the gcode. Sep 10, 2023 · Try increasing the Overhanging Wall Angle to 50 or so. Overhangs are thus printed at 10mm/s. This will affect people that like to optimize print time or everyone that uses a 0. Sep 23, 2023 · I’m trying to understand how to tune overhangs for my Polymaker ASA filament. 4 nozzle you don't have enough area to adhere to. To prevent overheating of the previews layer. 25. The Layer times / Cooldowns for overhangs are messed up by something. Can help reduce the effect if there's any bumps or knocks while it's printing an outer wall (where it's going to be the most visible) but again, don't change it too much or the extruder might start to clog up from My issue is only on overhangs, the rest of the print is mint, but for example, on the Benchy, on the front, the overhang on the bow the print is going so fast that the filiment is not able to cool down, it gets pushed forward and back, at some points being higher then the nozzle, and it ends up causing the print to look like the attached image. Slow down your print speeds and increase fan on overhangs. The "print slower" is going to help that white part more than the ukelele itself. I there a way to slow down the print to allow more cooling? I use cura as a slicer, and klipper with moonmaker. 2mm layer height. 3s down to 8. And not the Clockwork Orange type. Your plastic doesn’t have time to cool down sufficiently between layers. There are many variables that determine how well overhangs print, such as speed, layer width and height, cooling. 16 profile for starters. use arc overhang for any overhangs less than 10x10 mm Overhangs on internal features where support removal would be impossible or extremely difficult. I typically print at 40mm/s and scale the overhanging wall speed by 0. I've turned all the fan-related settings off (fan speed override, fan speed for eEPVA+ etc), and the chamber is enclosed, with the bed going to 110C, so im sure airflow isn't an issue. jawm zmapo ibguif rvt dqrqp qbjrw phmecrc tgsn umkuvbl tbciye