3d-printed Halbach Motor - Building Instructions 

Yeah, I can't even imagine how did he draw those coils. Winding the wire is not a valid operation in a CAD system.

@@styrbjornoborna4660 I was wondering that as well!

Winding a wire can be done by using a sweep in most CAD-programs. But a lot of work, nevertheless! :O

When he measured the magnets I suddenly realized I've been living in a cave all my life..

He's German(Swiss actually), there's no other way to do anything over there ;)

such a sad day

Swiss?

@@pietermeyer5921 Yes

@Semper Fortis Well, it really depends on your environment. I never had a friend who was interested in doing these stuff. it's not easy to be a self taught in everything. I learned to code from the internet and before that I learned how to speak English from movies thanks to the current technology. So, not everyone has as good as you. living in a third world country under lots of sanctions is not easy. I know, you don't care and I don't want to bore you. I just wanted to give you a context for your prejudice. peace

@@pernaboys idk man I have some friends that just live and breathe work and improvement. I wouldn't say its all enviroment. I am in the same situation where I don't achieve much but im also not constantly trying to, unlike my roommate. Guy works like 60 hours a week minimum doing personal projects and shit

@@RocoeGames Well they like their life I assume and they are not depressed.

:^(. Find personal worth thru a hobby Breh. Doesn’t have to be technical

Brother maybe it's time to change your environment! I say go for it! I never became an engineer but only because I didn't apply myself and now i have a few regrets but that's life and I'm working on fixing it! But seriously if you're an engineer, surround yourself with people that will push your thinking to its limits and get rid of people that say "that won't work" or "you can't do that"! I have a lot of moments where I only want to create by myself but there are definitely times where I wish someone would visit just so I can say "hey, look at what I built!". Good luck brother... push harder... learn more....achieve more. One day you'll wake up and be old and then it will be too late. DO IT NOW! 💪🏽💪🏽💪🏽💪🏽😊

There is a single moving piece. It is nothing like a swiss watch. Swiss implies complicated, this is more japanese, like a Casio. So well engineered it doesn't need a ton of moving parts to make it work. This is something germans and swiss just can't get out of their heads, they make some of the best stuff, but it's all overly complicated. Case in point: look up the G11. It's a rifle the germans prototyped. It used caseless ammunition, and had a trigger pack so complicated it was sealed to keep out debris, and if there was an issue with it you threw it away and got another one.

Shut the fuck up.

@Larry Jackson nahh we here for the motor. thanks

yeah i didnt think about the magnet variations

Same!

Same

Me too

same

Same

Hünibach!

💪 👍

Can you explain the width of the poles with regards to the effect? Because in between the south and north orientations a magnet is placed in between but of different width, what is the overall effect? Or is this more of a design thing?

@@extremecupcakebaker its about tourque and how round it runs pffffff. *pushes up glasses*

Can you not do this without a decent drillpress?

@@kimaegaii surtainle

haha xD

Canibalize the bearings from the old motor.

@@danielch6662 The bearings are the most common cause of motor failure, so the old ones are likely bad. The supply chain to Mars is going to be a nightmare. They will have to stock bearings for all critical motors, because bearings need tighter tolerances than printing allows.

the plant is cover in iron oxide and aluminum. the 3 top elements. cast them in a thermite forge and you get iron. throw in some alloy to get steel and ect, or you could use induction too.

Small brushless and even brushed motors spinning props can take off fingers...imagine what one of these could do to your arm!

@@Megaflare47 Yeah, especially that the prop didn't even slow down when it chopped the background concerns me.

Considering the cooling holes, not long.

Or just put a small rubber cube in between.

I'm guessing the minor side pressures of pushing a steel bearing into a plastic hole probably isn't going to hurt it...

@@bbushong67 It is generally bad practice.

when it knocked over the wall i laughed so hard i had tears in my eyes.

Yes, that will certainly work. Aluminium would be perfect to dissipate the heat. You could probably double the power (twice the current).

Christoph Laimer you wil have to balance the thing

Thefreakyfreek you don't need to balance the "wire part" (stator).

Aluminum will not work. Look up eddy currents it would be very difficult to turn a motor with aluminum

Ну он предусмотрел это и сделал отверстия для охлаждения

Он сказал что метал не безопасен. Конечно он выполняет роль радиатора, но так как двигатель будет внутри обдуваться, также как и топиться, то при такой мощности можно обойтись пластиком.

Brian Brewster Uhm, i mean, those don't run on dc.

IsbjornXII News flash... This is a Brushless DC motor...

As to the rest of the questions, Most of that info is in the Instructable that is linked. Current depended on the voltage. It was tested from 8V to 30V. At 8V it drew 80A. 20A at 30V. Rated at 600W and spec'd for 8,000 RPM. Total weight was 900g or 0.9kg.

Will never be used in anything, inductance of magnetic print material isn't enough

@@MCSGproject this design doesnt need an iron core.

No swiss even worse

Kevlar, like fiberglass and carbon fiber, is a material you bond with resin, either chop mat or woven. There are a few printers out there that use fiber in the shape of filament that are extruded but the material is placed into plastic and the filament is cut; you're not actually printing it, it's just placed within the model for structural support. Personally, I'm skeptical at the benefits of added material, since it's not being processed in the same way as it traditionally would be, with resin. If you're building for failure protection, it'd be better just to lay up the kevlar/glass/carbon onto the outside of the motor, like a cast. But with the wall thicknesses and infill, this should be more than enough if there is an internal failure.

Wireline the mark 2 printer from markforged prints continuous fibers. it's 10 times stronger than normal 3d-printed materials

I'd love to see a motor build with the mark 2 *-* Pls make it happen!

Pls make one out of Nylon or an other strong material an test it :)

Would still be pretty fragile to shear in the x/y plane, though? I imagine it's much more resistant to pretty much any other force.

TANK The Hammer I'm thinking the same thing.

TANK The Hammer use kinematic equations???? I mean all data needed is shown in the vid..

Sry I never got into AP Physics

80% of 600W (at 6'500 rpm) --> 480W

Christoph Laimer thank you very much, so 2 units would generate nearly 1KW, that's pretty sweet

I can't offer it for a reasonable price. It takes a day or two of work ...

Christoph Laimer I was wondering the estimated cost for a person like me to make one :) I was wondering as I plan to make a drone for a school project

There is a shopping list on Instructables: www.instructables.com/id/600-Watt-3d-printed-Halbach-Array-Brushless-DC-Ele/ ... hardware costs roughly USD50. Then you will need 400g of different filaments, and maybe 15 hours of your time for manual work (most of it is winding work). It depends a bit on your manual skills ....

@Christoph Laimer, I think your comment mentioning the price was flagged as spam...

dude you need a brushless motor for that

can you build a motor DIY?

I don't think it could take that kind of load. It's a plastic case at the end of the day. You should look towards finding the most common fan that can be run on a battery, then, instead of a battery, use capacitors (round shape will help you hide them in a neat package). Not really that amazing of a e-bike, but certainly a lot cheaper than paying 2000$ and up.

Casting small things is not difficult to do, and I think most of the parts would be easy to press into casting sand and leave their impression more or less perfectly.

why not just print the entire bike?

@@aserta Electric rollers have way less powerful motors. You reach 30 km/h standing on a narrow board connecting two small wheels on this. That's already quite dangerous - the smallest pothole can send you rolling. The force being transmitted doesn't need to be that large, and the shocks and the really high dynamic stresses would be supported by the frame, not the motor. If I can find the time and the instructions to produce something maybe half as powerful but a hundred times slower, I'll definitely try to print something like this. Most rollers available for sale today have really small wheels - not good for bumpy roads. One with larger wheels, with the driving motor inside the hub of the front wheel, would be ideal.

SubConsciousMindd ultimaker 2

Buying is always cheaper than making something yourself. This motor is clearly an experiment using 3d-printing technology, and not using traditional iron-sheets. it's also educational ...

Yeah really enjoyed the vid, didn't knew that we don't have to use iron core...

Arek R. But did i understand right, that the plastic used for the rotor was conducting? It has to be or am i wrong? Just copper wire without a iron core would work, but with a very low power of the motor!?

The plastic used for this motor is not electrically conducting. It's basically copper wires, permanent magnets, and no iron core. Resp. the stator is printed with PLA, blended with 30% iron powder. However the effect of the powder is marginal compared with real iron laminations.

Christoph Laimer thank you. So i misunderstood this. Technical English is still kinda hard for me to understand. If you had a laser cutter or a flowjet cutter you could easily build a laminated iron core from sheet metal.

Tienen los planos :v

Idk probably cost him like 5 bucks, it was only a foamboard that fell

owais farooqui yeah, you have to print 4 stepper motors, one for each axis and one for the feeder, now print a cooling fan for your extruder, print your bearings, print your shafts, print the pulleys and the cogged belts... That's already more resources than the price of the 3D printer, and I still didn't talk about the heating elements for the bed and the extruder. Good luck with that dude.

That’s not how it works fam