Why the topology optimized brackets weren't screwed to studs (and other questions answered)!

Answering some questions and misunderstandings from the comment section of "Making STRONG shelves with Topology Optimization"!
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[@zodak9999b]

Why don't people understand "Because I can, and want to". To me, it's the very best reason to make something.

[@gizmoguyar]

That's a totally fine reason. But it doesn't mean I won't still ask why.

[@vidznstuff1]

It is - but that's not what he was out to do. He was looking for the least material and highest strength, not a Picasso. He's backpedaling on a major F-up.

[@roderik1990]

@@vidznstuff1 I'm not too sure about that, I feel like the intent was closer to exploring topology optimisation, and having making something pretty and strong. If this was about strength? Then FDM printing probably wasn't the method to use. Or it could be fine, but add that to the simulation/optimisation, as the shape ignored the anisotropic material properties.

[@jankohler562]

Becauuuuse ... (^‿^) ... this would be way to much straight forward and easy to understand.

[@davinderc]

@@vidznstuff1 Oh, right, of course, you're the one with the crystal ball here to read his mind. We'll just take your word for it of course ;)

[@serversurfer6169]

It’s strong enough, uses less material than a solid truss, and looks way cooler. 🤓👍 Anyone can build a bridge that stands, but it takes an engineer to build a bridge that barely stands. 😎👍

[@Eman9669]

wtf.

[@360.Tapestry]

if you're talking bridge, now you're talking taxpayer money

[@michaelkelly7379]

@@Eman9669 He's talking about in theory anyone can design something by throwing unlimited resources (material, time, money) at it with better/more material / supports at it. While it's a lot harder to design something within the time, budget, and material constraints of the real world. To optimize for what the project actually needs.

[@IFRYRCE]

the original Tacoma Narrows bridge had some real engineers then

[@garethbaus5471]

​​@@IFRYRCE That bridge was actually stronger than it needed to be, they just didn't account for the resonance of the bridge.

[@darkwinter6028]

I think you did the right thing with the paint and clear coat... I like the overall look of your place there. 😎

[@patwicker1358]

I agree very much!! The white actually makes the wood gain stand out, I'm going to steal his idea :-)

[@brandona1593]

1st Video: I did this because of these reasons... Viewers: Y U DO IT LIK DAT 2nd Video: Literally the same reasons... Viewers: Oh.... Okay...

[@goeland86]

I hate that you feel like you had to justify your choices, but I applaud you for the clear smackdown you dished out as a result. I wish it stopped trolls, sadly I doubt it ever will. Kudos to you Tom!

[@DerSolinski]

Ahahaha.... studs in Germany... My friends beyond the pond, we don't build our homes out of paper maché like you fellows, no we use really sturdy stuff. (That said we have totally different weather conditions so duh) The only place where you find usually drywall is in office buildings where the tenants can freely divide their space to their liking. (Or when your landlord is lazy, greedy or a cheapskate)

[@PeterAuto1]

or in my brothers apartment, where he hides his weed plantation

[@pacmandrugs]

Perhaps our houses are merely topologically optimized.

[@expression3639]

Ok but how do you pass additional wires in the walls after the place is built?

[@atariks1475]

@@expression3639 why do you need to? Our houses are planned with the help of architects and all wire, pipes and other stuff gets installed to this plans. It's really rare that we "reorganize" our homes, including all the installations of kitchen and bathroom. When I first saw somebody rearange his bathroom I was fascinated that even your baths are build like this.

[@famitory]

@@atariks1475 sounds like a nightmare to me. it seems like every other week that i'm deciding i want to run more ethernet or more power to a room that doesn't have it. what does a german do when they decide their server room needs a secondary UPS and they need to run four more circuits from their breaker panel?

[@ts3dprints732]

I think the reason why the other video did so well was 3 reasons listed below. I feel that content like this is the heart of this channel, and the reason I watch, and am a patreon supporter. 1. It was Tom ("I do this because I want to.") 2. It was relatable. ("Hey I could do that and put it in my house.") 3. It was tech light. (Informative but you didn't get into the details. I paused the video and went and watched 5 other videos on topology optimization, and then came back and finished it.)

[@MakunaRGBIC]

I have been checking out all the construction techniques in Europe versus USA; it is truly amazing the cool and interesting techniques used in Europe while here in the US construction techniques are generally the same for over 60 years, wood studs and drywall.

[@truantray]

US building codes are just about cheap. That's why they blow apart with a slight wind.

[@FutureChaosTV]

I shudder each time they show a house built how you even wouldn't be allowed to build a toolshed to place in your garden here. I couldn't sleep alone for the reason that you can hear a mosquito sneeze from five rooms away.

[@UnProj]

@@truantray cost is definitely a factor, but the most common construction techniques in the US are based material availability for the volume of homes that need to be built at the speed needed to meet the demand.

[@LucasHartmann]

If you buy shelf supports off the shelf, won't the shelf fall off the supports?

[@xKatjaxPurrsx]

Idea: Print the brackets again, but as a negative to make a mold and then cast the brackets out of a colored translucent resin. They'd look really cool and it'd be a whole 'nother project video :)

[@garethbaus5471]

Cast them out of aluminum using lost PLA and have a dance party on the shelf.

[@MadeWithLayers]

Hi 360p fanclub!

[@carterpeel625]

360p gang

[@t4teeee697]

Yeye love it

[@e_g4239]

Yee

[@0calvin]

360p was good enough for Granddaddy, and it's good enough for me.

[@TorIvanBoine]

hola!

[@animationcreations42]

So basically this video is just repeating everything you said in the last video for those people that didn't listen

[@TonyRios]

*sigh*

[@lkibbler]

animationcreations42 so many people feel the need to impose their own wants, needs and desires on other people. So sad. Remember that advice not asked for is only for the giver.

[@andrewwakefield4519]

Tom, thanks for these videos. I was needing to make some special brackets to hang curtains in my daughter's house - special because the house is rented and has some very specific rules about putting any holes in the walls, so we had to match existing holes and they had to extend out quite a bit further than a typical curtain bracket. At first I was planning to make something out of metal, but when I saw the first video on your shelf brackets, I realized how much easier it would be to do a quick design and print them. I didn't need or do the form optimization, just a simple design out of PLA - and as you say, it is plenty strong enough for the application. Thanks for pointing me in this direction!

[@customsolutionsinc]

I appreciated the respectful yet firm way you answered the questions, it seems a lot of people assume and criticize way to fast/easy.. Great Job, I enjoy your informative video's

[@Bajicoy]

What a responsible and calm video for answering some interesting questions, I’d probably lose my temper and get very patronizing, great work!

[@derekhawley9660]

Your patience with 'us' is great ... thanks for another great video Thomas.

[@MikeyFirst]

The reasoning that people use "you could have made it much stronger if you added a full size beam." is still a misconception in the engineering world, at least in the industry I'm in. Why would anyone add more mass to a support structure of a bookshelf so that it can hold two adults while it only has to support only 40 kg of books. The topology optimization or generative design features in modern CAD application is meant to reduce mass and keep the same (or increase) structural strength. Still we hear engineers say "Well, let's use a steel beam of the next bigger in size, then it'll hold for sure.". Good work Thomas, you've proven the meaning of topology optimization. Keep the videos coming.

[@dropbear9785]

Mechanical engineers that just increase size 'to be sure' aren't actual engineers imho. Structures are designed to a static and dynamic Factor of Safety (FoS). In THIS case, a FoS of around 2.5 is what I'd recommend (i.e. design can handle 2.5x the expected stress since the material is not completely reliable/a bit brittle, the environment isn't harsh, and failure isn't catastrophic). I expect he's WAY over that with what he has, and the fastener locations may be where the critical loads happen, anyway. I just enjoy watching Tom and the other creators that actually build things, since I don't have much 'maker time' anymore. Thanks Tom!

[@philchia4764]

What he's trying to say is he went Architect on an engineering problem.

[@nacsurte]

Super cool shelves ! Thanks for the explanation, your reasoning is sound and your aesthetic choices totally on point.

[@Andreas-gh6is]

I think those brackets look great. What I sometimes find missing in discussions about strength of 3D printed parts is that it is not about absolute strength of one material over another, but rather how much material do you need for a job. The "optimization" isn't optimizing the strength but rather reducing the amount of material. Enough PLA will hold anything, and "enough" isn't too much, most of the time.

[@zimmy1958]

Because I do what I like for MY pleasure not yours and I know what I'm doing ;-) You tell them Thomas. Love this video take care have a great day.

[@timothysands5537]

I hope people stop giving you such a hard time when really you put yourself out there and showed off a new skill. I am grateful for your videos. Don't let people wear you down, i genuinely appreciate the videos you make and i almost always learn something. Because of you and CNC kitchen, i am now going to try my hand at FEA based software in fusion 360.

[@flymypg]

Thanks for the careful consideration of, and response to, the previous video's comments. This really closes the loop between making something and putting it to use, and brings to light all the other factors to be considered in a project where the printed part is just one piece of many.

[@licensetodrive9930]

That would be an interesting set of tests & perhaps a video; Infill vs Perimeters - Which is stronger?

[@laiquocbao2565]

Reach out for CNCKitchen's videos, he has all kind of tests and experiments with 3D printed parts.

[@JandCanO]

I believe it is fairly established that perimeters are the greatest contributors to strength.

[@echoswatch]

Alles richtig gemacht! Finds super wie du es erklärt hast. Deine Klebebandlösung finde ich sehr gut.

[@theaross8562]

I'm doing a similar set of 3D Printed shelves and I was going to use a bolt and nut or a screw to a fix my shelves to the bracket and WOW... you have simplified everything thanks not to the fusion topology optimization, but using double sided tape! lol, Thanks for the Videos and the candid discussion on design choices!

[@spikekent]

Ultimately they do the job perfectly and they look awesome. I would not have painted the shelves before, but seeing how yours turned out, I would definitely do it now too.

[@ajosepi1976]

I like the look. I saw nothing wrong with the other video. People are all too critical of things. Keep up the good work, and know there are more who love your work than are critical of it!

[@LeeviMarkkula]

5/5 making those supports to my shelves, I've just picked up a massive interest in topology optimization after a facinating lecture in our university on the subject. What a great project! Also as a designer myself, I have to say your choises on design are bang on

[@neur303]

I love your apartment. It's soo beautiful. That short sweep inspired me to take more care about my apartment ❤️

[@MadeWithLayers]

I only show the pretty parts ;-)

[@Ben-mb4ft]

Super arbeit! Sehr schön geworden, hat mich inspiriert mehr über Topology Optimization zu lernen danke dir

[@stevekappes912]

I think its awesome that you got to make a video that takes so little effort for a change. :)

[@mirzacenanovic]

Great video! Topology optimization is used to find an optimal (minimum) compliance given certain constraints, such as volume and geometric constrains. But the resulting topology, while optimal in a stiffness sense, may experience too high stresses under load. It's the stress under load that causes cracks to form and eventually the structure to fail. Now, it is possible to include a stress constraint in the topology optimization algorithm, but due to the nature of the density based algorithms, the surface of the topology is not well defined, as as such the computed stress would not be accurate enough to be of any use in that case. Thus, what we do is to use topology optimization in an initial step to get a sense of what the optimal topology should look like and then in the next step create a CAD model on which we can run FEA to optimize in terms of stress concentrations and manufacturability.

[@halsoy]

If I understand this correctly, if you wanted these brackets to have maximum load capacity, you would take the organic shape that the topology created and redraw it with more gemetrical lines? In this specific case, the "roots" or "branches" that's created would then be drawn as straight lines with an even diameter? I have no experience with any of this and have never done any form of load calculations for printing objects.

[@mirzacenanovic]

@@halsoy How you draw the new geometry is up to you. Call it designer freedom. You as an engineering have perhaps other factors to take into consideration, one of the biggest being design rules to actually be able to manufacture your design. For 3D printing and this particular case it could mean making the bracket have a uniform thickness and cut out material that is not critical. This problem of converting topology optimisation results to actually manufacturable designs is by no means trivial, there is active research ongoing to develop better tools to aid design engineerings with this problem.

[@mirzacenanovic]

Oh and by the way, there is not just ONE topology that is optimal, in fact there is a set of designs that each are in a sense basically equally optimal. Given the constraints and other filters added to the optimisation problem these algorithms find a local optima, not a global optima.

[@halsoy]

@@mirzacenanovic Thanks, I'll have to look into this more. Seems like something that's very useful to understand, if only to a basic level. I'm sure there's tons of uses for it even on a hobbyist level.

[@mirzacenanovic]

@@halsoy Using fusion 360 and topology optimisation with 3D printing is really great! Here's a tip for a workflow: 1. Run a topology optimisation on a starting design on which you have more material than needed. 2. Redesign your design based on the results of the topology optimisation, this is where you take print directions into considerations, etc. 3. Run a structural analysis to check for stress concentrations in order to dimension radiuses properly. Also check that the displacements are within your limits. Now keep in mind that all the uncertainty due to non-linearity, anisotropy of the material properties and process properties such as layer bonding etc. can be overcome by a safety factor, since it is not that critical to get exactly optimal.

[@danielellestad8314]

Thomas I think the shelves and brackets look great and obviously serve the purpose intended. Also the office space is yours so make it how you like it! I enjoy your videos and thanks for sharing an idea and promoting a new though process! Cheers. Dan

[@lpknifeworks]

You didn't need to make a video for that buddy, these answers are quite obvious and if someone can't figure that out for themselves, they have much bigger issues at hand! Keep up the good work, I loved the video and it left me with no questions like this....

[@ohglobbits]

OMG. you're not a total idiot and do know what you're doing! Who'd have thought random strangers on the internet could be so wrong! Glad I found your channel.

[@JurassicTrance]

These shelves are so cool, I just stumbled upon the first video - don’t know the first thing about 3D printing or engineering, but now I want to do it all!

[@Mike01Hu]

Nice one Thomas! It would be nice to see a bit more on topology optimisation in other uses. I've run through the CNC Kitchen video previously but other practical ideas would be informative.

[@omofomo9681]

You just took a bunch of people with nothing to do but complain and took away their reasoning for existence. Excellent work.

[@JulianMakes]

i've also got soft blocks like yours. I've found it make a HUGE difference to plugs if you insert a small tube/straw into the back of the hole and blow out the dust before you insert the plugs (not just suck with a vacuum cleaner). Once there's no dust, it's actually quite grippy. Love the shelves btw.

[@TheDgdimick]

I like the two tone color of the shelves. Good job.

[@williamwaung2514]

Great answers!!

Actually it's pretty sad, especially in this community that people doesn't listen. Almost everything that was said in this video was indeed told in the first video. I do appreciate the introduction to topology optimization since it's a pretty neat feature but has steep learning curve. Thanks for great content!

[@MadeWithLayers]

*tips hat*

[@eric.is.online]

I think the nearest thing we have in the UK to your foam concrete we call breeze blocks. Basically a second skin material which is cheaper and lighter than concrete blocks and less effort than a second skin of bricks. We tend not to use it for interior walls though.

[@simon7109100]

Drywalls are kinda rare in Europe, lol. Our house is made out of 30cm thick hollow bricks (they have a grid pattern inside), and the rooms inside are Ytong (the same Tom has in the office). They are strong and sound proof. We usually only use drywalls if years after construction, we want to divide a room in to 2 or something, we separate them by a drywall. For example we didn't used our garage, so we divided it and use one half as an office and the other as a storage. For this, drywalls are enough because it does not need to be strong nor sound proof.

[@RomanoPRODUCTION]

Thomas, you did 2 nice choices (at least): PLA and Prusa. Both deliver quality products 👏👏 💟

[@procurion8934]

I thought that everything you covered in the first video was obvious and very well explained, lol. I also happen to agree with your visual and artistic choices, but even if I had not, it is your apartment, not mine. Sad that people comment about things that do not concern them. Thank you for both videos, keep up the good work!

[@markusstaden]

These shelfes look amazing!

[@truantray]

He mentioned in the original video it was not a stud wall. Americans just don't listen before blurting crap in comments.

[@FutureChaosTV]

Nah, that's a human problem.

[@BrandonGraham]

I wasn't a commenter, but I'm going to stand up for some of the dummies here: I don't think he actually said anything about studs in the original video. With that in mind, there are a few things that might make someone think that his comment about "foam concrete" sound like he might just be thinking about drywall: KZbin is filled with people with English as a second language who often describe something because they can't think of the English word for it. If you break a piece of drywall, foam concrete sounds like a pretty good explanation of what it is. And he didn't sound too confident in what he was calling it. In the US, even houses constructed with blocks or bricks, they can still have wooden studs set directly next to the wall. So imagine living in a country where the closest neighboring country can be a 15 hour drive away, and the country is big enough that it takes 48 hours to drive from one end to the other... I can see how someone might live their life without knowing that it's even an option to have a wall made entirely from foam. The real problem is that drywall that is installed correctly can easily withstand the loads he would expect here if he uses the appropriate hardware.

[@philchia4764]

@@BrandonGraham drywall is made of plaster, not concrete. And your excuse of isolation falls flat. In Australia we use Hebel seated concrete as well, but the shittier cheaper brick veneer design dominates some areas, cos capitalism.

[@BrandonGraham]

@@philchia4764 I think you missed the point. But don't let that stop you from feeling better than everyone else

[@garethbaus5471]

I had assumed that you were just pulling a blank on the name of drywall in the previous video. It looks, sounds, and tears out like drywall which makes it extremely easy to assume that the wall was drywall. Plus at least in the US, there isn't much material like that other than drywall used in construction.

[@engineerdan3077]

Mein Gott, es gibt echt Leute die an allem Nörgeln müssen. Es geht hier um 3D Druck, nicht um Dübel in einer Wand. Mich kotzt echt an, dass so viele Menschen krampfhaft versuchen die Fehler bei anderen zu suchen weil sie selbst einfach nichts auf die Reihe bekommen. Deine Video sind genial, haben mir schon sehr oft geholfen und ich danke Dir für die Arbeit, die Du da hineinsteckst und mir ist scheis egal welche Wand da ist und welche Dübel rein sollen/müssen/können. Mach weiter so!

[@mikehibbett3301]

Great feedback, thanks

[@TheMotoRebel]

Why do people go nuts when art and engineer come to a compromise?

[@KiR_3d]

Hi, Thomas! The reasons are solid like your walls )) I've guessed right that you've used a double sided painter's tape or something like that. The other alternative could be a rubber glue but the tapes seems to be easier. It's not that case when you need a reliability like a railroad bridge.

[@michelrail]

Thomas, l love your channel. I learn new things all the time. Thank you for your hard work. PS: Time to change your channel picture. 😉

[@fbujold]

Hey. You do not have to justify every decision that you make. Trolls will be trolls. Your work is great and if YOU are satisfied, well so be it

[@muddymaker3721]

Hey Tom, continue doing what you do best buddy and don't listen to the neigh-sayers, making explanation videos only feed the trolls.

[@itmovesitchats]

I mean, I liked learning what tape he used on those, so I would have missed out on that if there weren't so many people complaining over nothing :)

[@patrickmaartense7772]

great video Thomas!

[@MadeWithLayers]

Dude, you haven't even watched it!

[@AndrewGillard]

I think it's a pretty good assumption at this point, though ;)

[@billyludbey838]

What do you think about printing the bracket upside down with supports just underneath the shelf platform. Would this orientated the print layers better as the force is not pulling it apart at the top of the bracket. This orientation also reduces the amount of overhang issues

[@TheChristophertheone]

Hi This is Chris in Bulgaria, there was a lot of negative comments when one considers that they were just shelves. You created something you cannot buy, you did a great job. I do have an idea for you and Stefan to do. Do you have an email, i have not checked yet, I am distracted by a women screaming at her goats in my field, hahaha, Take care Long live PLA

[@tstevens06ts]

I like the white and wood look shelf. I would like to see if the palette 2 could replace the white paint on the brackets.

[@milan4428]

Hey Tom, are you comming to maker faire hannover? :)

[@PaulMorley1]

Thomas, thanks for the follow-up regarding the dry-wall. I thought the same thing when I saw it in the first vid although didn't comment. I figured you knew your materials a bit better that we did. :-) Regarding your comment in this vid at 6:11 about how "Still it's shocking how many people assumed it's drywall..." With all that Google knows about us, i'm shocked you don't have a YT metric labeled '% of viewers from regions of the world who don't realize there are other building techniques other than stud walls and drywall." And possibly '% of viewers who JUMP to conclusions...'. Thanks for ALL you do Thomas. You Rock!

[@Jehty21]

You don't need Googles knowledge for that. Roughly 4,5% of the world's population is that way. Just kidding

[@acopernic]

In french this wall is a 'beton cellulaire' and you did quite good. There's a lot of different type and technique.. In the end if the wall don't fall.. You're good to go !

[@curtischan137]

Love the video! Have you tried ANSYS’ Discovery Live Topology Optimization? Curious on your feedback around it. Thoughts?

[@hanzz1775]

In germany we actually build houses, that are not from cardboard and fly away with the first tornado like they do in America

[@FakirCB]

Yup, exactly my thoughts. So do we here in CZ. Not enough tornadoes to test these claims though. :)

[@StrathpefferJunction]

Same in Scotland. I worked in the building industry for years and was gobsmacked by how disposable so many American houses look.

[@micalobia1515]

America isn't a fan of building things to last most of the time, for whatever reason. Make it cheaper to build, and when things go wrong it's still cheap to rebuild or to renovate. I still massively prefer things being built to last though, it makes places feel better to live in

[@SchwachsinnProduzent]

@@micalobia1515 It often feels like the bureaucracy to build or rebuild is so much more work here that building once and have it last for centuries is the easier choice. And concrete cannot be too expensive considering it was the main material of all the quick cheap buildings after the war.

[@kichapps]

Try visiting India, solid concrete everywhere 😁

[@batcadragos]

Funny how you had to explain stuff for some let's say 'picky' people. Love the double-sided tape method 😄

[@tinayoga8844]

When I saw the first video I didn't think there was anything wrong. Everything was adequate. And it looked cool. What more do you want? I design electronic products and that includes mechanical aspects, for more than 30 years.

[@BrekRND]

When I first saw the shelves, i thought the white & beech gave a really nice look. How are the exterior walls insulated there?

[@247hinkey]

Hi Thomas - been a green horn regarding 3D printing for the last 5 months and yes got a lot of information from yourself (great videos!) Anyway just changed over to prusa slicer 2.0 using "brim" found it stiff and hard to remove - could you point me in the right direction to making the brim thinner so its easy to remove - thanx in advance.

[@juscallmesteve]

Could you make a video showing the process you went through to make the model? I know you linked another channel that goes over it. I haven’t been able to find a video where the section that is against the wall for support is not flat or not a consistent shape.

[@TheClique]

Everyone's a critic... Good response video.

[@BuddyR]

I just like unique things, if I can make it , I will, If I can fix it (or make it better) I will, but most of all, I like to be different, BTW: Nice Videos....

[@gregoryp203]

Stefan showed to get the best material to strength ratio use 15% rectilinear infill and 6 perimeters. It was as strong as 2 perimeters and 100% infill. How would modeling it as a solid triangle and use 15% rectilinear infill and 6 perimeters compare with strength and use of material to the topology optimized triangle? I would like to very much know since when I am designing something I don't think about how big the braces should be. I just model it as solid and dial in the strength to material ratio with the infill and perimeter settings.

[@xl000]

Even with just two screws in drywall anchors properly installed just in the drywall, it would be more than enough to hold the shelf and its content with a good margin. You really need to find the studs when you're hanging a water heater, a sink, something structural.. And in those cases, it would almost never be on a drywall.

[@TheRealFOSFOR]

You did good Thomas, you did good.

[@originaltrilogy1]

Does PLA hold up a few years in? I've had some turn to crumble after 3+ years, even when painted.

[@jholmessiedle]

Loved that you engaged with your viewers - sad that you had to for the reasons given - the brackets rock :)

[@nccyr1]

Thom, you are an inspiration, thank you for pushing the envelope. My question: Can you print good, solid, matching Lego pieces with the SLA printer (example, a Lego figure with all the details)?

[@MadeWithLayers]

Yes! You can even print well-fitting Lego parts with FDM and a a bit of tuning.

[@kazzIsTheName]

Wow all of that drama for a bracket xD Makes me wonder if I should share my noob projects to the world? XD

[@pteppig]

Just do it, let other people learn from your experience

[@kazzIsTheName]

@@pteppig true xD

[@sstorholm]

On another channel of mine I get a lot of comments from people angry that the 3rd part of a 6 part series isn't about what they thought the video was about and that I've now wasted 17 minutes of their life, on a pretty regular basis. KZbin commenters generally assume that content producers should clearly state everything without possibility of misinterpretation, and that anything that isn't 100% what they're looking for is instantly a waste for their life. :)

[@FutureChaosTV]

@@sstorholm Well, that's tough luck for them then.

[@kazzIsTheName]

@@sstorholm That might be true. Internet people are getting more and more agressive in terms of what they want. And if someone stray from it or it wasent to their likeing, then the content creater is to blame and they want their time back.

[@TheNigaHigaFan4Ever]

Use Fisher duopower wall plugs, never had problems with those. just make shure you use the right drill bit.

[@greyareaRK1]

Considering the organic look (branches) of the shelf supports, I would like to see a foliage pattern cut from the shelves to create soft, organic shadows.

[@jpmoller562]

I wonder why your shape of topology opt. Looks so different of my models... what exactly did you do differently to get the upper organic stringy design?!? I'm using fusion too... its awesome! ;)

[@cybermad64]

It works, it's solid and it's beautifull !!! Great job ;) You shouldn't have to explain why you did it that way. The 3d printing trolls are soooo intense!

[@gioromeo]

Thomas you're absolutely right. Why buy a standard "thing" when you (we) can design and make the specific thing you (we...) want? When I have the time, I usually even redesign the things available fo download on Thingiverse or Myminifactory because I prefer having the "original" project in Fusion360 (my preferred S/W) to modify whenever I want; and, also, because I can! :-)

[@DavidinEssexUK]

In the UK we call them breeze blocks. What’s fun is they actually float.

[@AMillionInAOne]

I've wondered if filling the infill cavity with epoxy or some kind of expanding resin would add much strength to an FDM printed part? And help reduce the anisotropy of the printed material? Its probable super messy...

[@Audio_Simon]

I think that wall is called Breeze Block in the UK.

[@GUCR44]

Looks great! To many criticizers!

[@l3d-3dmaker58]

but it looks absolutely beautiful

[@twinturbostang]

People need a new hobby, other than complaining about your shelving choices. lol

[@ifell3]

I thought you said all this in the beginning of the last video in regards to the shape and design, some people prefer to watch bits then ask questions. It's like the people that post on Facebook is Aldi open today rather then googling!!!

[@KiR_3d]

Yesterday I've seen the old video about OnShape's going wild with their plans... and did make a little investigation around FreeCAD. In videos it's alike old Blender 2.5* versions vs 3ds.max or Maya. Now it's a robust and powerful small 3d/video/gameMaking package that in some areas is way better than all other 3d packages. I'm sure that the same will be with FreeCAD in a pretty close future. It's hunting SW's tail yet... But it's close.

[@HyraxAttax]

Housing made of cinder block does exist in the US, especially in student housing. It's not all drywall and wood over here.

[@MadNitr0]

Hey Tom! Simple question what's the best first printer with the best "out of the box" experience?

[@MadeWithLayers]

As per usual, I'll say Prusa, but it depends on your use case and budget.

[@bujin5455]

Wow! Your english accent has improved a lot over the years!

[@darknessblades]

another question: why did you not just buy metal L profile shelve mounts that have no support, and glued the topology mounts to it you have the same look but with the strength of the metal mounts

[@IronCross82]

I just had a quick question are you able to hook up a Raspberry Pi to a vinyl cutter?

[@LuisPolasek]

This video is way better than "Making STRONG shelves with Topology Optimization" ;)

[@GaryMcKinnonUFO]

Cool, a followup :)