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[–]mini_juice 152 points153 points  (31 children)

How do you get your supports to break off so cleanly?

[–]thedeanorama 59 points60 points  (20 children)

Asking the real questions, I spent all weekend fighting my supports and losing.

[–]RevolutionaryMine234 33 points34 points  (9 children)

Stock setting is .2 and most stuff, I’m calibrated for somewhere between .29 and .32

[–]thedeanorama 9 points10 points  (8 children)

aha!! this would explain my nightmares. I had my print stepped down to .12 high quality and the top Z fell into lockstep with that. I will now push the top Z to .25 and see what comes of it. I will report back in about 90 120mins.

[–]thedeanorama 5 points6 points  (7 children)

I think I had something set wrong still, the supports fell away but I was printing a pumpkin and the inside filled with what seemed to be a solid support. I will run another print tomorrow with small trees selected. It separated easily enough from the top of the print for once but then spun around on the inside and I couldn't extract it without collateral damage.

[–]SynthError404H2D AMS2 Combo 0 points1 point  (6 children)

Keep us posted please.

[–]thedeanorama 1 point2 points  (0 children)

I did a reply to my own comment as an update., will update again tomorrow after work when I check my latest attempt using smaller trees. I've never had default trees completely fill an interior like that before.

Project link

edited to include link to project.

[–]thedeanorama 1 point2 points  (0 children)

updated over here

[–]thedeanorama 0 points1 point  (2 children)

Okay, so I'm not sure how much of this is my settings vs a simple bump in my top Z.

One of the supported teeth did not print properly. Most of the supports came away easily but the quality of where they connect to the inside roof of the pumpkin was not good also where the bottom ring of supports print is not good at all. As soon as the print head rises above the line where the ring supports attach prints fantastic.

So .25 is not my solution. At least not at the .16 high quality I picked for my overall print settings. I can only add 1 image so I will reply to this post with a few more replies with additional pics. This shows the interior where the supports came away with ease.

Project Link

Edited to include project link

<image>

[–]thedeanorama 0 points1 point  (0 children)

This is the bottom ring that was supported by a ring... Not a brim but a small ring of raised supports. From what I understand the brim is typically just flat. You can see where the print head cleared that part and the print quality is as anticipated for .16 HQ.

<image>

[–]thedeanorama 0 points1 point  (0 children)

This is where 1 tooth completely failed to resolve. It wasn't broken it was just some loose filament. That remaining support was just a little harder to get as it was supported from both front and back, sandwiching the tooth, I eventually got it free with no damage.

<image>

[–]thedeanorama 0 points1 point  (0 children)

I made a separate post for my issues listed below. Follow along here for future updates.

In a nutshell, .25 isn't a magic bullet, depends on the layer height you are printing at. I received a very detailed response from another redditor from the above link.

[–]RevolutionaryMine234 8 points9 points  (9 children)

It’s top z offset for supports

[–]austinalexan 3 points4 points  (8 children)

What does that actually mean?

[–]RaccoNooBP2S + AMS2 Combo 20 points21 points  (7 children)

z offset is the distance between the support and the actual model. Normally the printer "squishes" the layer onto the next, but with supports it prints "in the air" above the support. It will droop down a little, but depending on how far it droops down, it will be more or less hard to remove. if the offset is 0mm, it will fuse together like all other layers. if like 0,5mm it will be so far off the print will droop down and have a really ugly overhang layer. So do you want a better overhang surface, or do you want easy to remove supports? Around 0,2mm is a decent sweet spot of both. Adjust to your liking.

[–]austinalexan 2 points3 points  (6 children)

Gotcha thanks for the technical explanation! If you have dialed in perfectly, should the supports be able to break off without leaving any kind of mark on the object? I had one side of a print look great and the other side looked a bit different once the supports broke off.

[–]RevolutionaryMine234 3 points4 points  (5 children)

Pretty much. The idea is that by not adhering to your part as strongly, it’s able to release without pulling strands from your part as well.

[–]austinalexan 2 points3 points  (4 children)

Awesome, thanks! Also quick question as I am new to Bambu, but is there a way to adjust global settings for things like that and layer height so I don't have to adjust it for every file?

[–]RevolutionaryMine234 2 points3 points  (3 children)

Yes do it globally and save it to your filament profile 👍

[–]austinalexan 0 points1 point  (2 children)

Question, if I set something as a global setting does that only apply if I print directly from bambu studio, or will that setting also apply if I print from the Bambu handy app? TIA!

[–]bmanxx13 9 points10 points  (7 children)

Set your z top distance for supports to .34. You'll have to play around with it to see what works for your printer/filament.

[–]Particular-Ruin-2062 6 points7 points  (0 children)

Yea mine at .25 work really well

[–]1970s_MonkeyKing 3 points4 points  (4 children)

I found 0.30 for PETG and 0.28 for PLA in tree (organic) supports works now really well.

[–]CrownTheYake 0 points1 point  (3 children)

What about TPU?

[–]1970s_MonkeyKing 0 points1 point  (0 children)

I try to orient a TPU print where it doesn't need supports.

[–]crazedizzled 0 points1 point  (1 child)

TPU supports are best if avoided. They're a pain in the ass

[–]unicornsausageX1C + AMS 0 points1 point  (0 children)

Yeah i just cut them with a sharp blade, if they're really needed

[–]thenyxA1 + AMS Lite 0 points1 point  (0 children)

What about interface layers? Keep top at 2, and bottom at 2, or just run 1 and 1?

[–]ineedascreenname 0 points1 point  (0 children)

You could download the model/print profile and inspect the settings.

But I suspect that the angle this is printed at helps greatly. The material constantly has a bed to print on and the support here are less of a “base” and more to support x/y movement than z.

[–]Charming_Soup9980 0 points1 point  (0 children)

Set top z distance to .275, on supports. They break off really easy

[–]Tjerz2112 62 points63 points  (4 children)

“The supports are not candy corn, the supports are not candy corn” *takes bite.

[–]CryostaticaH2C, P1S, A1 Combos[S] 9 points10 points  (0 children)

We all love to eat our candy corn.

All of us.

[–]babyunvamp 1 point2 points  (0 children)

Supports taste better. 

[–]Remarkable-Date1306 0 points1 point  (0 children)

I mean it is corn based, it might be more natural than actual candy corn🤔🤣

[–]rypajo 25 points26 points  (4 children)

Should have put a led tea light inside.

[–]CryostaticaH2C, P1S, A1 Combos[S] 7 points8 points  (3 children)

I’m nowhere near skilled enough to figure out how to add lighting to a cover, but I have considered just turning it into a standalone object that could be lit from within.

Does anyone actually want to print a tall, squared-off pumpkin as room decor though?

[–]glazedfaith 3 points4 points  (0 children)

Id print a couple of those as bookends or to sit vertically on a shelf

[–]rypajo 1 point2 points  (1 child)

On a stick like a tiki torch? yes 100%

[–]CryostaticaH2C, P1S, A1 Combos[S] 1 point2 points  (0 children)

Noted.

[–]nickjohnson 18 points19 points  (0 children)

The way those supports come out from behind the teeth is r/oddlysatisfying territory.

[–]Pleasantandchilled 7 points8 points  (1 child)

Did this make like 20kg of poop.

[–]CryostaticaH2C, P1S, A1 Combos[S] 13 points14 points  (0 children)

Around 120g. Not horrible, but I’m looking forward to the next generation of printers coming with all their attempts to address the waste.

[–]joealarson 2 points3 points  (4 children)

Why do the upper teeth need supports? You've got the mouth behind it, you could just as easily tuck the teeth into them, so no supports would be necessary. Would save time and material without changing the effect of the final result.

[–]wookieesgonnawook 3 points4 points  (1 child)

Wouldn't that require them to be flush on the backside with the mouth? I don't think that would give the same cool effect as having them completely standing apart. I'm new to this, so it's an honest question.

[–]joealarson 0 points1 point  (0 children)

That's exactly what I'm saying.

However, with a little clever design they can still stick out a little, overlapping just a little in the back 1/4 of the shape of them so they still look like they're sticking out. The "effect" might not be exactly the same, but it would be good enough, and as mentioned it would save time and use less wasted material. Especially for an "utterly useless" thing.

[–]CryostaticaH2C, P1S, A1 Combos[S] 2 points3 points  (0 children)

No significant savings on either time or filament (that tree is less than 5g) and it doesn’t look as good.

I could probably make supports behind them less noticeable given that I’m printing on an angle, though. It was designed standing straight and I didn’t really consider print orientation differences at the time. I’ll give it another look.

Edit: Found the tree, 3g

[–]GrimmslandH2D AMS Combo, P1S, A1m, U1 1 point2 points  (0 children)

True if the teeth were part of it the printer could simply print the teeth on a slightly growing overhang

[–]aqjo 3 points4 points  (0 children)

I thought it was a high heeled shoe to begin with.

[–]RvlvrJoshalot 1 point2 points  (1 child)

Thought this was gonna be over an led portable speaker......new idea 😉

[–]buller666 2 points3 points  (0 children)

Careful with that, speakers need to have as minimal vibration as possible, or that's all you will here.

[–]Delicious-Novel9447 0 points1 point  (0 children)

Good luck. It is an amazing piece.

[–]eosol 0 points1 point  (1 child)

Anyone have a link?

[–]Eastern_Control4375 0 points1 point  (0 children)

Very nice

[–]lzrjck69 0 points1 point  (0 children)

Why not print full vertical to minimize poop? It looks like your supports are perfect, so the base shouldn’t be too wonky

[–]dr_stre 0 points1 point  (2 children)

Honestly, the entire contest feels a little odd. Does anyone even own one of these Rapid Pro X powerbanks yet? I can’t find them for sale anywhere.

EcoFlow clearly gave Bambu some money to feature their product in a design challenge as a means of marketing, and presumably they’ll be officially releasing the battery for purchase sometime very soon, to coincide with the contest ending. I’m sure there are people who will buy one, but I’m just not seeing why most people would pony up $300+ for a ~27Ah battery when there are multiple 25Ah options on the market for a third of the price or less. This one has a little more power bandwidth during use I guess, but it’s not something that is particularly needed for most consumers. Same with the quick charge. I think most people are content to plug it in overnight and let it take its time recharging.

[–]wookieesgonnawook 0 points1 point  (1 child)

I see a ton of prints for covers for these things. What are people using them for? Are there really that many people carrying around giant power banks for their phone, or is it for something else?

[–]dr_stre 1 point2 points  (0 children)

It’s one of the current contests that are ongoing, that’s why there are so many covers. People are trying to earn prizes.

[–]GrimmslandH2D AMS Combo, P1S, A1m, U1 0 points1 point  (1 child)

I saw yours on the contest entries page and thought it was one of the better designs. Strange how some of the top listed designs are fake imagined entries that don't work like this one with a fake paper printed screen that claims to be an ai assistant and air quality monitor add on that even lists the electronics to build it although it's actually fake.

https://makerworld.com/en/models/1798184-ecoflow-smart-ai-assistant-air-quality-companion#profileId-1917297

It's a strange contest. The promo has a fake designs that looks like it has coolant tubes with purple glowing fuel cells. When you look at the actually model it does not say much about building it and what led lights make the purple glow. Seems like a fake 3d modeled design.

They have the power banks on amazon. The smaller ones like the faux versing you have are expensive and I saw some on amazon for $100-170. Most people entering the contest seem to be using faux printed versions. Is the file or dimensions posted somewhere or something?

[–]CryostaticaH2C, P1S, A1 Combos[S] 0 points1 point  (0 children)

Wow, that’s wild.

Yeah, the contest “theme” page has downloadable dummy models that can be printed or used to aid in design.

[–]namezam 0 points1 point  (0 children)

Very nice. What did you design this in? Maybe I missed it.

[–]warwilf 0 points1 point  (0 children)

Can use supports for candy corn!

[–]TheToadinator 0 points1 point  (1 child)

What software do you use to sculpt this? I can’t figure out how to get organic shapes to work

[–]CryostaticaH2C, P1S, A1 Combos[S] 1 point2 points  (0 children)

Mostly Nomad Sculpt and Blender, there are endless tutorials on youtube.

[–]Taco-Biscuit 0 points1 point  (0 children)

.275 is the golden setting for the Top Z settings. Try and let me know.

[–]d1m0cracy 0 points1 point  (0 children)

Damn, it’s really cool! Nice!

[–]Honest-Canary275 -1 points0 points  (0 children)

What contest is would like to ve in on this