3D Print on thin air! How and when to use bridging in your Cura printing process.

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In this episode, I'm explaining bridging while inserting just about as many bridge based puns as I can. Let's have a reasonably deep dive into cura's bridging mode and see what happens!
*Links to models used*:
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Опубликовано:

23 июл 2024

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Комментарии : 118

@Sovol Год назад

Interesting as always!! 👍And we are proud of the SV01 PRO with the good printing results, thank you very much for making the good content with it!

@birdfloyd Год назад

Just bought an sv01 Pro as my first printer and I love it. It has been easy to use with great results. I try to suggest it to anyone asking on reddit.

@mikko3d Год назад

I find the bridge setting very useful for PETG, where I usually don't want to run the fan, but can enable it for bridges.

@802Garage 8 месяцев назад

Exactly why I came to this video. Trying to get some nice results with transparent PETG and some bridging is required on a large print.

@GuruMN 2 года назад

For the attempt at 5:40, I would design the print with the entire width of the gap a single layer so it makes a big rectangular bridge and then the next layer would print the desired shape. The post print cleanup would involve shaving or cutting that single sacrificial layer off. Might not look the cleanest but I print functional parts and it's only a light touch of sandpaper to smooth any jaggies.

@LostInTech3D 2 года назад

yeah seems like a good idea!

@marijuanas 2 года назад

Great tests, very interesting! I noticed prusa slicer used the experimental style cura bridging and just turned it on automatically when using cura :P I've found thick bridges in prusa slicer sometimes helps with troubled prints too!

@marsgizmo 2 года назад

Very well explained video and great tips 👏😎 ..I wonder what other challenges we should “inspire” you with.. 👀

@LostInTech3D 2 года назад

I'm always ready for challenges 👍👍

@funx24X7 2 года назад

I like to keep bridging on in Cura just for the slower print speed and having the lines run parallel over gaps. Even if its only on for one layer, and while keeping the flow/width settings the same as the rest of my print, it seems to improve the quality of unsupported ceilings.

@WKfpv 2 года назад

I hit like the moment you started with the add, just because I thought well done buddy, you got an sponsor! Well done.

@LostInTech3D 2 года назад

Haha, thanks! ;)

@avejst 2 года назад

Interesting as always Thanks for sharing your results :-)

@stefanguiton 2 года назад

Great videos as always!

@LostInTech3D 2 года назад

Thank you 👍👍👍

@antariuswolfonso8035 2 года назад

Very nice. Helps to understand this function. THX

@dtaggartofRTD 2 года назад

the guided bridging is brilliant.

@RCwithAdam1 2 года назад

Great info. I need to get my Fokoos Odin5 better at bridging (it really sucks right now). Also, I did not know about the cura settings guide, so thanks for that! 👍

@PCBWay 2 года назад

there you are 😊 Adam

@birdfloyd Год назад

This is a great video. My first thought went right to making supports for my miniature. Couple of spots over the base that need help. If I somehow work a bridge in for those spots to be built on it will work great, thanks!

@LostInTech3D Год назад

Appreciate the comments 👍

@sadierobotics 2 года назад

For curved bridges, I like to design a straight-line bridge and then use 60° angled overhangs to quickly build up to the curved shape you would see from above.

@LostInTech3D 2 года назад

Yeah that's a good way to do it

@hydroturd 7 месяцев назад

great video and great channel

@applepiesapricots3109 2 года назад

Somewhere out there someone did a video on using layers to support bridges, I can't remember who. But using it to support curves is far more interesting. In the far but not so far future it would be possible to automate your guided bridging and add it into slicers, though that would not only require one paper on the topic but several papers. It's mostly a question of geometry, no? I look forward to slicing requiring 10 minutes per file in 10 years, even if we'll be thankful for the features it provides.

@Baricade648 2 года назад

I didn’t need PCB’s and now I’m ordering PCB’s.

@mobiobione 2 года назад

Nice! I cheated on that model when I did it also, by aligning rectilinear infil with the direction of the bridge, so bridges inside bridges.

@LostInTech3D 2 года назад

That's a good tip...I'm taking notes!

@vitalysacred Год назад

it works!

@mattgib711 Год назад

Awesome video! But also like... what cura settings would help us bridge better?

@LostInTech3D Год назад

Good idea for a future video

@BundySA Год назад

thank you :)

@DrewLSsix 11 месяцев назад

A concept i want to explore is pridging supports, use bridging to create a base for supports that the actual print can then be built on. So you dont need towers or walls of supports stretching from the plate up to some distant overhang, or from a surface you would rather keep pristine. I just saw a mask where I think this would have been useful. The top of the eye slots had issues and were way off the plate and kinda recessed so support would have been difficult slow and expensive in material.

@LostInTech3D 11 месяцев назад

Yeah I've thought about this before. Support strategies could definitely do with catching up, there's quite a lot of potential there.

@Ryan-hd3je Год назад

the outro music is fire

@user-vy5hc9ud6l Год назад

I dont know where i saw this but someone was using abs and printing each line quite fast so when the printer reached the end the one strand was still hot and sagging but just seconds later it cooled and shrunk which made the bridge perfect with no sagging

@LostInTech3D Год назад

3dprintbunny on twitter shared a clip of it just the other day, it's fascinating.

@thomasnixon4440 2 года назад

To support odd-shaped bridges (like the taper or the inside of the curve), you could also make a larger bridge than you need for one layer, which could be easily cut off after it's finished, a bit like the trick for printing counterbored holes on the bottom of parts. I feel like slicers could really improve this -- in theory both of those impossible bridges could be made by starting with a normal bridge in a straight line between the supports, then extending it out on either side with more parallel lines. These would need to be attached to the bridge at one or both ends with some kind of wipe, but maybe it'd work if your settings are just right.

@LostInTech3D 2 года назад

Good ideas... you could also maybe test around perforations or maybe making it thinner like a brim!

@jesuschal3802 5 месяцев назад

Coming from Slic3r/Prusa where this is active by default, it took quite some time to figure it out. This video was a great help. Any follow up on how to exploit this feature with PETG which I find a "bridge non-friendly" filament.

@LostInTech3D 5 месяцев назад

I'll consider it, because yeah, I've had these problems with PETG.

@billallen6109 2 года назад

Can't wait for you to make your way to cooling fans. Soo many claims to be the best/quietest fans/ducts

@LostInTech3D 2 года назад

Ah, huge can of worms there. Where would you even begin?!

@billallen6109 2 года назад

@@LostInTech3D I think more people would be interested in the noise end of the fans. You can get an increase in overhang angles with better airflow but that only seems to vary from 50-60° stock to 70° with better fan ducts. You've shown a fair amount of knowledge when it comes to the board and I would be interested to see how you would set up buck converters and such to put quieter fans on the board.. sorry I can ramble at times

@JB-yu1vv 2 года назад

So would there be any disadvantage of having bridging mode always on? Or would it interfere with supports if you use some?

@LostInTech3D 2 года назад

I think it's better on to be honest, I also dont hear many complaints from prusaslicer users, where it's the default there.

@barakrl 2 года назад

Any thought or tips about bringing when printing TPU?

@LostInTech3D 2 года назад

I didn't even approach that in this video...but it would make a whole episode in itself or part of the half done episode I have on tpu/arachne :)

@coaltowking 2 года назад

Some printers (usually diy) have cooling that is too overpowered to have at 100% during bridging. My railcore bridges best at 60-80% fan speed. I only turn it to 100% if I'm printing at ridiculous speeds with a large nozzle. Since you want to go slow when bridging, I don't need that kind of cooling.

@chuck2501 Год назад

6:44 you could also use a setting called "infill support"

@bumv2 2 года назад

Maybe with this "late sagging" you can use bridging, but put a single support bar in the middle with one layer gap. That way the support wont stick, but the sagging can be managed.

@LostInTech3D 2 года назад

good idea...I can see a second video being possible on all these ideas in the comments.

@3sotErik 2 года назад

I haven't been getting your vids recommended for awhile now. I have to go look for them.

@LostInTech3D 2 года назад

Hmph. This is why I always go to my subscription feed when I use RU-vid for watching.

@3sotErik 2 года назад

@@LostInTech3D I am subbed but I sub to allot of channels. When most have a new vid, they tend to pop up in my feed. Yours aren't.

@LostInTech3D 2 года назад

Well that's annoying...but I can't do anything about it...I guess. Algorithm gonna do what it's gonna do. I assume you did the whole click the bell thing?

@3sotErik 2 года назад

@@LostInTech3D I know. It's not on you at all. I'm just complaining in general. No to the bell. I have almost EVERY notification disabled & it pisses my wife off. hehe

@LostInTech3D 2 года назад

I just have the notifications off, which means clicking the bell doesn't actually make a notification. Which...I'm not sure what it does instead. Probably nothing.

@stonefarmer3005 Год назад

There, now you have 1000 likes!!

@ThePhilbox 2 года назад

Abs with large bridging surface, high fan can be enough to warp whole the print. With ABS bridging fan speed must still be calibrated based on filament warpyness.

@LostInTech3D 2 года назад

ABS warps if you look at it wrong 😁

@jeriellopez4927 Год назад

Anyone know gcode to retract filament? I got m92 e-number which reverses the extruder direction.

@jeriellopez4927 Год назад

My printer heats up the hotend to 230 to filament remove via the touch screen. This is why I want to use gcode to do the retraction to remove the filament

@LostInTech3D Год назад

You should just be able to issue an M92 E0 followed by a G0 E-10 or whatever

@behzatc.9911 Год назад

I still support for putting supports under long distances. But like Eiffel tower which has small gaps on it, it can be cancelled to return for bridging..

@FlipaClipaaFan1 2 года назад

my bridging is grayed out in cura how do i turn it on?

@LostInTech3D 2 года назад

I'm not sure what you mean by grayed out? You can share some pics on our discord if you want some help with it, we should be able to work it out!

@TechieSewing Год назад

Set Settings Visibility in Preferences to All, it will ungrey ;) If not, the same setting is in the three lines menu at the top of the settings list, sometimes mine switches to Expert and that makes Bridging settings grey.

@sanelbilalic3485 10 месяцев назад

Hello, How thick ist the single line comming from Nozzle. I want to Design string Art in Solidworks. Can anyone help? Thanks

@LostInTech3D 10 месяцев назад

Oh, you need to talk to / look at the stuff 3dprintbunny makes.

@sanelbilalic3485 10 месяцев назад

@@LostInTech3D thank you so much. I apprecciate it.

@kimmotoivanen 2 года назад

Problem with Cura bridging settings is too many 😅 In Prusa slicer it's like fat/normal, flow, speed and fan speed, and support or not - and defaults seem to work quite well (depending who made the profile for non-Prusa printer). In Cura there are probably 30 settings divided to first, second and maybe third+ layers 🙄

@LostInTech3D 2 года назад

I think maybe 5-10 settings but yeah, most of them you can seemingly ignore

@sirrodneyffing1 6 месяцев назад

So why not print a cross (X) to start with? So that the very first string, supports the very next one at least in the middle.

@RobertD_83 2 года назад

Bridge over troubled infill... 😁

@LisaHarsh 2 года назад

The puns in this are shameless. Made me laugh.

@cavemandanwilder5597 2 года назад

Definitely a bridge too far.

@Zelle10 2 года назад

The slicer should be inteeligent enough to use it when needed. KI will be a biiig releaf besides of becoming our potential biggest threat.

@OskarNendes Год назад

HOW BRIDGING BEHAVES WHEN THE PRINTER IS UPSIDE DOWN?

@LostInTech3D Год назад

that....is an interesting question. I might try it!

@OskarNendes Год назад

@@LostInTech3D Yes. Please do it \😍/

@WeisserAllan Год назад

Resume? Bridging always active? Fan at the first layer always 100% When to not use this feature?

@3sotErik 2 года назад

I'm terribly dyslexic and have a hard time taking information away from reading so be a pal & make that hour long reading video for me why don't cha. jk, but only kinda. 😁

@siedliko 2 года назад

What about turning the printer upside down ?

@LostInTech3D 2 года назад

The best ideas always are in the comments...I'm writing that down 👍

@coaltowking 2 года назад

That seems risky. It would still be unsupported, but any sagging would potentially catch on the hotend on the next layer and ruin your print.

@PenPeng 2 года назад

@@coaltowking That's why you should rotate the printer while printing. Half the time it sags upwards, half the time it sags down => everything cancels out, no sagging. Trust me, I'm an engineer. Or just print in zero gravity, simple as that.

@LostInTech3D 2 года назад

Jokes aside, rotating it to sideways would make bridging entirely ordinary!

@JohnDoe-rx3vn Год назад

@@PenPeng why not just toss it from a plane, so it can print properly, then collect it later?

@PureRushXevus 2 года назад

I've always scratched my head when it comes to bridging, so I resort to making my models in a way I almost don't get any haha

@LostInTech3D 2 года назад

Me too, I think we need to see more bridging in prints though!

@TDOBrandano 2 года назад

I actually try to have bridges in place of support material whenever possible, but I tend to use Slic3r and its derivatives, where Bridging has always been supported from the get-go.

@PureRushXevus 2 года назад

@@LostInTech3D True, but I also have to dial in my supports. either they don't seem to do much and I get pretty poor overhangs anyway, or they stick too well and turns into a pain to cleanly remove.. that model where you pointed out in the video that it had good bridging results, looks super good, like it was printed lying down

@LostInTech3D 2 года назад

I'm convinced it's the cooling, I think the answer is always better cooling.

@PureRushXevus 2 года назад

@@LostInTech3D Could be.. I should probably upgrade mine :p I tried designing my own dual nozzle duct, as I have just been using a simple single nozzle on one side, but I didn't see any improvement at all. So.. more fans? 2 5015 blowers instead of 1? hehe

@Mrstrikerace Год назад

Sooo... in the end you are encouraging to turn on bridging and reduce fan cooling on certain layers?????????????????? There is a LOT very vague here. I am sure you have a good take on it since you have actually done it but after watching the video I can't tell what you are recommending? A reply would be nice but this video is 8 months old so I don't expect you to have the time really to do it. VERY interesting though 👍👍👍

@hermangaviria690 Год назад

Klipper related videos please and thank you

@LostInTech3D Год назад

Haha okay. I have to learn that stuff myself first 🤣

@hermangaviria690 Год назад

@@LostInTech3D please do so. You're awesome, your videos never disappoint, I'm sure a large portion of your audience uses klipper anyway.

@yschroder 2 года назад

Personally I never really used Cura. I went from Slic3r to Prusa Slicer. And I took bridges for granted my whole 3D printing life. Slic3r was able to do that at least since 2013 or something. It blows my mind that it is apparently needed to be introduced to people in the Cura universe.

@LostInTech3D 2 года назад

Haha, I'm not surprised it was introduced in 2018 but I am surprised it's still experimental

@jbergene 2 года назад

2018 seems like yesterday:(

@davidbalfour3390 2 года назад

The real question is do you like asking rhetorical questions?

@LostInTech3D 2 года назад

I guess I do?

@TechieSewing 2 года назад

1:00 What, it can be not purple? Why would you even want a non-purple! You've mostly skipped the settings though, is it just tick that box for bridging, set the fan to 100% from the 3rd layer and go?..

@LostInTech3D 2 года назад

everyone is doing purple! I am a contrarian.

@TechieSewing 2 года назад

@@LostInTech3D Who's everyone? I have two boards in my _box_ , different manufacturers and both are blue! Blue is the new green for boards apparently ;)

@LostInTech3D 2 года назад

Fine. Yellow then. Ugh...

@TechieSewing 2 года назад

@@LostInTech3D Or maybe two 🎶

@mamatuja Год назад

You should like to complicate stuff. How about using a support.😂😂😂

@martonlerant5672 2 года назад

The takeawayis that cura's bridging algorithm is utter garbage. Frankly its the main reason i use prusaslicer.

@BubonicPestilence 2 года назад

never use red color for showing problems. use metallic/grays. never use red or lime-green or any "toxic" colors.

@marcus3d 2 года назад

If you're going to do screen recording and then blow it up and put it in a video, then for the love of all that is holy you have to disable subpixel antialiasing if you don't want it to end up looking like a ranbowy mess.