Ribs | Design for Mass Production 3D Printing

Рет қаралды 15,993

Күн бұрын

Пікірлер: 66

@Faysalariss Жыл бұрын

Why not print on the back side of the part? I would imagine it’s for strength because of the layer lines, but it doesn’t really seem necessary here

@slant3d Жыл бұрын

Surface finish

@accelenova Жыл бұрын

Might I ask which surface? You make some great points here, but this example piece seems like it would print very well the way @Faysalariss said.

@darrennew8211 Жыл бұрын

Because that would be an easy solution with no need to explain how to design around the limitations of 3d printing. You want to learn how to do it in the general case, where this might be a small part of a larger assembly and you don't have an easy choice of how to build it, or you might have similar bits inside facing the other direction as well.

@polycrystallinecandy Жыл бұрын

@@accelenovathe bed texture would be different from the rest of the part which has a fuzzy texture, so I imagine you'd want to minimize the surface in contact with the bed or have it on a side that would be hidden when in use.

@polycrystallinecandy Жыл бұрын

You could print it on its back in this simple example, but it's not always possible to change print orientation. But yeah, the example could've been better.

@vuongnh0607l Жыл бұрын

Thanks for the lesson on ribs. Slanting (punt intended) prints to eliminate overhangs and supports is a powerful idea. I once printed a garmin to gopro mount adapter and I can tell that if not designed to be print slanted, the part will most likely print horribly, requiring supports in tiny tight space that would be a pita to remove.

@davebarkerdesign Жыл бұрын

Every video has so much useful info regarding part design for 3D printing. Thanks again for the tips.

@mistaecco Жыл бұрын

I can't thank you enough for the quality of the content you guys put out. Thanks!

@slant3d Жыл бұрын

Thank you so much for watching

@Duder_abides Жыл бұрын

As someone pretty new to modeling, appreciate your videos my man.

@DaveEtchells Жыл бұрын

LOVE these how to design for 3D printing vids!! ❤

@Premier-Media-Group Жыл бұрын

How about a short series discussing various attachment options? Threadforming screws, press fit anchors, heated anchors, bearings, etc.

@nathanmelanson Жыл бұрын

3d print noob here, so sorry for the stupid question, but why would you print it on the short side down, when printing it with the bottom down would mean that there is no sagging since all the walls are vertical?

@mravx2993 Жыл бұрын

Bottom down means much more surface area on the print bed which makes the part harder to remove. That is ok for home use, however if you want the pieces to get "kicked off" by a robot when the job is done so you can print again, that is more troublesome and might need people spending time aka higher cost.

@slant3d Жыл бұрын

Surface finish not good or controllable. You want first layer to be as small as possible.

@spoon1272 Жыл бұрын

@@slant3d You only want the first layer to be as small as possible due to the limitations of the way your machines remove the part after printing. You are basically limiting the options of the customer due to this.

@phasesecuritytechnology6573 6 ай бұрын

@@spoon1272well do you want 10,000 of them at a lower cost or don't you?

@VictorGallagherCarvings Жыл бұрын

You need to write a book.

@slant3d Жыл бұрын

We have thought about it

@feliwein_cc Жыл бұрын

i think your fundamentals for ejecting parts may be flawed, because the first part could be printed without supports on the right orientation, furthermore having high z height on a print is the slowest way of printing it, you are adding a constrain that determines quite a lot of your process, maybe another form of ejecting could be considered, if the bed is leveled right way it should not be a problem to have a lot of contact surface area, the ejecting part is quite a problem to solve, i've been testing concepts for a while and have some interesting solutions in mind, why you dont go the belt way? i think that a belted corexy with static z bed is the best solution, but dont know what consequences implies that makerbot belt patent that everyone talks about really are.

@slant3d Жыл бұрын

Belted machines are a dead end.

@feliwein_cc Жыл бұрын

@@slant3d i think if you have to move the belt to print its not a good idea, but with a corexy with a static bed the belt only moves when you finish the print and release it, why else do you think are a dead end?

@samrix8625 Жыл бұрын

@@slant3d would you mind explaining this a bit ? I had often wondered why you hadn't used machines like the CR-30 for part of your farm to give more "print directly to bin" options, it would also unlock possibilities for an "infinite" length along one axis if that were ever required

@ravplayztabla7467 Жыл бұрын

@@samrix8625 this is kinda this guy's shtick. he gives these 1 line responses thinking he greater than thou

@feliwein_cc Жыл бұрын

@@samrix8625one of the downsides for machines like the cr-30 is the footprint to use it, if you want to print something large you have to have the space in front for the part to keep rolling, and imo belt printers that rely on the belt y-axis to print are bad cause the print speed isnt good and if you roll forwards and backwards the belt will eventually offcenter itself, the corexy static bed solves those problems and i still dont see a bunch of eyes on that obvious idea, the other factor is the belt wear, it is going to be a consumable no matter what, the thing is going to be sooner or later but you will have to replace it, a spray on top may expand the life span of the belt tho, and furthermore, there are companies selling specialized belts for 60 dollars, so i think is totally a good deal, a good test would be to see practically how many hours can a belt last, i suspect that with proper printing it would be a lot, but i would love to hear a technical analysis from @slant3d for this one, and a good debate on the comments, i dont like 1 liner answers

@TheMakerFactory Жыл бұрын

Could u do a episode and all kinds of different 3d printing infills I would love to see something like that 😁

@slant3d Жыл бұрын

We may someday. But no production part should be dependant on the slicer to make it work.

@TheMakerFactory Жыл бұрын

@@slant3d yes sir

@polycrystallinecandy Жыл бұрын

CNC Kitchen has done some great videos on the topic, including strength testing

@TheMakerFactory Жыл бұрын

@@polycrystallinecandy thank u sm I’ll definitely check that out

@polycrystallinecandy Жыл бұрын

@@TheMakerFactory yw, def check it out, that channel is a great resource on 3D printing

@way-out350 Жыл бұрын

there's something I don't understand: why does the top of the part not require supports when printed at that orientation?

@kawag2780 Жыл бұрын

@way-out350 I assume you are wondering about the second model. If you look closely, the top part is shallower than the rest which would reduce the likelihood of sagging. But that is never mentioned in the video.

@jedisct1 Жыл бұрын

Until the very last minute, I didn't understand that you wanted to print the part vertically.

@seljd Жыл бұрын

You could also create walls inside the infill, by making thin gaps inside the model or add thickness to the infill

@slant3d Жыл бұрын

Why?

@SergeiSugaroverdoseShuykov Жыл бұрын

@@slant3dbecause wall loops is what gives rigidity to a part and having them enclosed inside solid body is a nice way to get extra rigidity without harming looks

@lightningstrike9876 Жыл бұрын

Frankly, as interesting as these videos are, I feel like they kinda fail on the most basic, fundamental level: 3D printing is not a viable tool for Mass Production. It's not that companies haven't figured out how to design products to be mass-produced via 3D Printing, they just realized that other production methods scale better when you get to the level of producing hundreds, thousands, even millions of identical copies of the same product.

@slant3d Жыл бұрын

We are the largest print farm in the world. We do it all the time.

@lightningstrike9876 Жыл бұрын

@@slant3d just because you spent a lot of money on an idea doesn't guarantee the idea is actually a good one. What is it about 3D printing that would make it a better production method than say, injection molding or die casting?

@justageekygamer Жыл бұрын

@@lightningstrike9876 starting cost is lower, and you can get parts shipped to your warehouses at a constant rate instead of all at once, or even ship the parts directly from production to customers.

@lightningstrike9876 Жыл бұрын

@@justageekygamer fixed costs need to be balanced against dynamic costs, however. In a mass-production setting, the special spools of material for the 3D printing setup are going to be more expensive per-ounce that the material used in simpler production methods. Shipping is itself a cost that needs to be considered, and shipping is generally calculated on a per-delivery basis. The more product you can ship in a single delivery, the cheaper it will be. Companies prefer the occasional big shipment over a constant stream of small shipments. Once you get the point of shipping items directly from production to end user, that only really becomes necessary if products are being made on-demand, and at that point it's no longer "mass production".

@connorjones7202 Жыл бұрын

@@lightningstrike9876 while I appreciate the content this channel provides it's important that people aren't misled (in a non-nefarious way in the case of this channel of course) so thank you for providing this information.

@samrix8625 Жыл бұрын

"Splarge" 😂

@protectyourassests1028 Жыл бұрын

We need more Channels like Slant 3D.

@slant3d Жыл бұрын

Thanks for watching

@mbunds Жыл бұрын

I second that. Engineering specifically for 3D printing is the next level, and this channel leaves nothing to chance.

@conorstewart2214 Жыл бұрын

@@mbunds people seem to get hung up on designing for 3D printing, saying things like, “you shouldn’t have to design for the manufacturing method, the printer should just be able to print it” and all that, it might just be because a lot of people watching are hobbyists but it just shows they don’t know what they are talking about. Every manufacturing method needs parts designed specifically for it, a part designed for machining would be different than for injection moulding. You always need to design to make use of what technology you have available and in any use other than hobbyist you have to design it to reduce cost.

@mbunds Жыл бұрын

@@conorstewart2214 Taking the hard path long before I had the pleasure of running across your channel, I learned early on that there are essentially two approaches to 3D printing, "proportional", where items like statues, figurines, and other decorative objects, along with low-precision utility items, which do not require precision tolerances, and the "precision" approach for gears, bearing shells, threaded assemblies, and enclosures which require extreme tuning of the FDM system to reduce post processing. This requires learning the finesse behind adequate bed adhesion and good first layers, then balancing speed and temperature to get tight control over warping and layer adhesion, which I have nearly perfected, thanks to people like yourself. A feel for the filament types is essential as well, and not only the gross type of plastics like PLA, ABS, or PETG, but the way various blends of these among manufacturers respond when printing, which is why every shipment, even if I have already "trended" the blend (manufacturers aren't always consistent in their blend proportions), gets profiled and documented with a label indicating its best performance. After learning to adjust the way I design for 3D prints (thanks again) now, when a part is ready in CAD, I only have to drag the model into the slicer, then WiFi it over to Octoprint on the target printer, and assemble the parts when finished. I can produce very precise centers between holes, and adjust the tolerance for how well a part will accept things like bearings from press-fit, to light friction at will, in a single iteration, zero "elephant's-foot", zero "PETG stringing" (mostly), with maximum strength. What I don't have is speed, because PETG and TPU taught me that sometimes there is no substitute for patience. Thanks again!

@conorstewart2214 Жыл бұрын

@@mbunds this isn't my channel and I don't have anything to do with it. Yeah a lot of people just see all PLAs as PLA, or all nylons as nylon, when most of these names are just general and broad terms and the properties can vary greatly depending on what exactly they put in it, even just looking at the TDS of filament it varies a lot even with the same name like PLA. As for plastic varying roll to roll, if you look at the MSDS for plastics it will tell you roughly what is in it and in what proportion, some carbon fibre reinforced nylon I was looking at had a range of 12 - 20 % carbon fiber content, so that is a large range, that will apply to pretty much any additive they add, it isn't really exact, even the colours of the filament aren't always the same. I think some companies do let you specify that you need all the rolls you buy to be from the same batch and if you are a large company you can probably buy a whole batch. I wonder what it is like on the very high end of filaments like ultem and similar, they have government and aerospace certifications so I would imagine they aren't allowed to vary much in terms of mechanical properties or contents. This is a good channel though and focuses on different parts of 3D printing compared to other channels, it isn't about the mechanical properties or looks of the filament, it is good for giving you new ideas on how things could be better designed.