Underneath the Cybertruck - Rear Cradle and EDM

[@themogget8808]

I loved the little segment where you showed the part being removed from the vehicle. It provides context and is fun to watch. Better than just starting the video talking about an already-removed part.

[@lemongavine]

Made me think about that fact that Tesla can build a Cybertruck faster than Munro can tear it down which is crazy when you think about it.

[@sleeknub]

@@lemongavinenot really. I bet that’s true of every vehicle, more-or-less. Maybe not handmade vehicles.

[@Sagiterrian77]

Yeah, it will help with roadside repair when you first try to get it home. 🤣😂🤣😂

[@cooluser23]

Please make more videos, and make them more granular. We love seeing you actually unscrew things and the disassembly.

[@MunroLive]

More videos coming.

[@sailirish7]

@@MunroLive Time-lapse disassembly/assembly would be fun to watch too

[@MunroLive]

No it wouldn’t as it’s a long slow process since we document everything for the reports.

[@MarkkuS]

This answer sounds like its Sandy answering 😊

[@TeslaElonSpaceXFan]

@@MunroLive 😍😍

[@WSDFirm]

Acronyms defined. You’re the man!

[@peterwilliams3246]

Super advert for Munro, two experts, quietly confidently describing, discussing, comparing. Not “showmen”, but “knowmen” and it shows.

[@fredbloggs5902]

Considering how early in the production this example is, the ‘cleanliness’ of the design is impressive.

[@markplott4820]

it was Developed from knowlage of Model S/X and Model 3/Y.

[@fredbloggs5902]

@@markplott4820 you don’t say! Thanks Captain Obvious.

[@user-roadwander]

@@fredbloggs5902 Why the snarky comment? I see no value.

[@markplott4820]

@@fredbloggs5902 - obvious to some, not so clear for others.

[@felixweinreich3999]

@@Hogla287 6 years and still their lower control arm design is a bad joke (for "offroad" vehicle)

[@jamesrose1191]

Great job on the explanation of the geometry of the rear.

[@MunroLive]

Thanks!

[@ulwur]

​@@MunroLive Will the toe-in of the real wheels change with the position of the suspension?

[@brianb-p6586]

@ulwur that's called bump steer, and since the tie rod length is reasonably coordinated with the control arm length bump steer should be reasonable. Munro doesn't typically address suspension geometry; their expertise is in manufacturing processes and costs.

[@TheArfdog]

@@ulwur Yes, and the amount depends on the handling characteristics that the designer wants in the vehicle. Sometimes they will dial in slightly more toe-in with compression for the feeling of sharper turn-in when going into a turn. Munro could test this by measuring toe as the suspension compresses and rebounds.

[@ericplatzke]

Let’s go! Kevin and Jordan the dream team!

[@gegwen7440]

Yes my thoughts as well, always said that Jordan may well be the next Mr Munro when the main man has had enough.

[@thetravellersboots]

Jordan is just awesome

[@irgtk]

Succinct explanations, top notch videography, defined abbreviations, is what makes the go to source for engineering the Munro team .👍

[@bobmurray3229]

I love that you feature solid American manufacturing companies. I will always buy American first 🇺🇸

[@mayflowerconsulting5540]

These videos sure give me an appreciation for the amount of work to design & produce a car or truck. Its mind-boggling that they can make money on them w/so many parts, systems, warranties.

[@JohnSmith-uz3dt]

What a great job. Go to work and take things apart.

[@MunroLive]

Yep

[@cooluser23]

The less fun part is having to document it all. I imagine lots of paperwork.

[@theonlymadmac4771]

I am a surgeon. Taking things apart is my daily routine!

[@mrmichrom8553]

@@theonlymadmac4771don’t break my heart 😂

[@theonlymadmac4771]

@@mrmichrom8553 😜

[@FutureSystem738]

Wow, the engineering design and development that has gone into all of this is truly mind boggling! Thanks - great work!

[@kevhuynh27]

Thanks!

[@MunroLive]

Thanks!

[@danapeck5382]

Thanks, these subassembly episodes are really interesting. The pacing is just right for this interested layman -- I replay what I don't get on the first try. Thanks for the willingness to decrypt acronyms. All the best

[@RichardSalmore]

It appears that as the volume ramps up, production costs and supply chain costs should be reduced. The CT needs to be high-volume to achieve design purity. Give it 300-500K units in the next 2-3 years! Thanks, Jordy and Kev for the detz! Munro is the G.O.A.T.

[@markplott4820]

over 150k in 2023, and 250k in 2025.

[@270eman]

Yeah goodluck selling that many of these piles of shit

[@AdamEdward]

jordan does a great job of talking and explaining what he is showing around various parts of the vehicle. i would definitely keep him in doing these walk arounds. easy to understand and gets right to the point. and not having the "hey boys and girls" intro was fantastic. sandy has to drop that lol

[@MunroLive]

Jordan has been doing videos for us for years!

[@Crazyreseller]

Thank you for showing the disassembly! I asked, you delivered!!

[@jacylegault1713]

thank-you for the insights and high production quality. it would be really interesting to see tear-downs side by side. R1T vs Lightning vs Cyber vs GM vs ICE for key areas like the suspension and drivetrain.

[@markplott4820]

Rivian is using HYBRID unibody . see - Teardown video. FUD motors & RAM, Silverado /GMC are using outdated Horse & Buggy technology . Legacy auto still using Ladder Frames & Body on Frame. Cybertruck using massive Gigacastings , 4680 Structural body , UNIBODY frame CLAID in Stainless steel, both axles are DESCRETE modules , unlike Compedators. aka MEGA CRADLE .

[@darylclifford]

What an informative rundown on the package!! Love the way they describe and explain much of the build and give concise details on their findings. Huge respect to these guys 👍

[@profsteve7653]

excellent presentation-really appreciate the analysis- the rear assembly is a beast

[@alanmay7929]

its not

[@profsteve7653]

@@alanmay7929 i suppose it satisfied my curiosity but I'm not an engineer only a spectator to the Tesla innovations

[@markplott4820]

NO ONE ON EARTH builds Trucks like TESLA does. probably NEVER will either.

[@davidanalyst671]

you are right, it is a beast. and the presentation is good. They give an overview, and then cover all the points they think of when looking at the piece in front of them.

[@Jdchin87]

Thank you Jordan for explaining the acronyms! ❤

[@wtmayhew]

I’m not too surprised to see the add-on locator on the anti sway bar. It probably won’t be long before that afterthought is replaced by flange on the inboard side of the bushings. It may be that that when the anti sway bars were sourced that the mounting position of the bushing cradles had not yet been finalized. If this is the biggest last minute fix on the EDM, then Tesla did pretty well on the up front engineering.

[@bhaebe6671]

That's just the different bill of processes, as stated in the vid, whatever that means....

[@wtmayhew]

@@bhaebe6671 I saw an over-looked situation like that on BMW where they had to remediate an apparently unanticipated lateral movement with an add-on. It will be cheaper if Tesla sources the part with flanges already on it from their supplier. It will take out the labor element of installing the bushings and band clamps as well as taking out the cost of the four extra parts. It is maybe 2 USD per vehicle, but that is 500,000 USD per year at the anticipated production rate.

[@monomille1]

Flashback to when I removed the front subframe (including engine, gearbox, suspension, wheels) from my Austin Mini. Four chassis bolts and the body just lifted up and rolled back making major maintenance access amazingly easy. btw, PTC is Positive Temperature Coefficient meaning an electric resistance heater - usually not what you want for efficiency.

[@markplott4820]

TESLA are built Different , UNLIKE any car.

[@arthurmoore9488]

I believe the Smart ForTwo has this weird thing where the engine is supposed to drop half-way for maintenance. Neat, but unless you do that it can be a pain to work on. It's important to note that we prefer PTC heaters over plain resistance heaters for safety reasons. PTCs have a fixed temperature they heat to, and lower the current at or above that. So, they're much less likely to cause a fire. I was shocked to hear about the stalling motor part for TESLA. I had assumed they would just run the AC in reverse as a heat pump.

[@markplott4820]

@@arthurmoore9488 - the BEST repair , is NO repair in the First place - ELON.

[@aaronwilliams1249]

Generally, a PTC is not used, but in extremely cold weather, it can help a lot, get up to temperature fairly quickly, and create a lot of BTUs, which are helpful when you're trying to heat a battery pack. Tesla has been using motors instead of separate PTCs.

[@markplott4820]

@@aaronwilliams1249 - TESLA heats up fast in Cold weather w/ Departure mode , & pre -heat.

[@cooluser23]

I have a suggestion: point out things that the aftermarket/3rd party can improve/modify. I'd imagine this would help you sell teardown and specs. documentations

[@markplott4820]

already DONE by Unplugged Performance, Evenex, and TSportine & others.

[@cooluser23]

@@markplott4820 and hopefully many others.

[@ronkuhlmeier6414]

Looking at the packaging, this reminded me of the Oldsmobile "Unitized Power Pack" that first appeared in the 1966 Olds Tornado and was later used in the famous (or infamous to the EPA) GMC Motorhome. The UPP took a V8 and mated it to a torque converter and chain assembly taking the rotational power of the longitudinally mounted engine and making it do a "U-Turn" to power the front wheels. (kinda like the front half of a 4x4 setup) Why did they do this? It aided in the assembly process having the drive unit packaged as all one "unit." I'm curious if any of the classic car folks in here made the same connection.

[@andrewashmore8000]

interesting info.

[@TidleyWink64]

Jaguars XJ series has this and they’re a nightmare to service.. can’t imagine having to tell a customer they need a new plastic coolant elbow on this. That’ll be $50 for the elbow aaaaand $5000 in labor to replace it… and oh btw warranty is void unless you take it to Tesla and wait 3 months to get it in the shop 😂😂😂

[@themonsterunderyourbed9408]

​@@TidleyWink64 oh look... Someone reciting FUD from 10 years ago. The few times I've had to bring my model 3 for service, I've never had to wait that long. I got it back the same/next day.

[@briancnc]

Is the threaded hole on the rotor not just a spot for a jacking bolt? Most cars have 2 for removal when it's stuck on.

[@themonsterunderyourbed9408]

Yes. That's exactly what it is. Kind of cringe that they don't know this.

[@darbyelliott2890]

Great Job! Super excited for this series. Keep these teardowns coming 🤗

[@MunroLive]

Thank you! Will do!

[@TogetherinParis]

You guys are international heroes!!!!!!

[@ChaimLoecher]

Great observations ... Wow that is a huge drive unit

[@markplott4820]

Tesla (tm) MEGA CRADLE .

[@css145hs]

Huge air struts

[@davidanalyst671]

Well.... the air will travel 12 inches, its the cyberbeast not a cybertruck lolz, so it contains two motors, and it has the gearing to put both motors to drive both wheels, so yes, it is huge, but considering what it does, its expected. This system and the front one accelerate this truck 0-60 in lilke 2.6 seconds. so you're comparing this to a w16 motor from bugatti super sport when you think about how big it is.

[@markplott4820]

@@davidanalyst671 - would have been better w/ Semi transmission tri motor & driveshaft disconnect. more efficient.

[@saff226]

​@@markplott4820they are induction motors so can be turned off without drag so really no different to the semi just less parts and more reliable

[@shinjincai]

Hoping to see Sandy show his face at some point! Keep up the good work!

[@MunroLive]

He’s all over the channel!

[@ericplatzke]

Who’s Sandy?

[@MunroLive]

🤣😂

[@barneyjensen4470]

I enjoy the commercials or ads, I'm not aware of a lot of these things so it's fascinating.

[@MrBadgas]

Good stuff guys

[@MunroLive]

Thanks

[@nononsenseBennett]

Don't like how the lower control arm is bowl-shaped which will collect mud/moisture....Also wondering how much the struts cost?

[@MrTeff999]

@@AudiTTQuattro2003 …such has been the case for so many new cars.

[@budgetaudiophilelife-long5461]

🤗 THANKS MUNRO TEAM,FOR SHARING THIS 🥶📐📐📐

[@MunroLive]

Our pleasure!

[@RagnarinVa]

I love the videos on this channel - the knowledge presented is outstanding and I actually learn a lot. Well done to the Munro team.

[@foremasp]

What a tiny rear sway bar for a monster weight vehicle.

[@alimechs]

Good update keep it up the good work 👍👍

[@MunroLive]

Thanks 👍

[@nihongobenkyoshimasu3190]

13:47 Saving the cost and the weight of a single 3/8 bolt !!! I remember Sandy talking about good enginering pactice of saving 1 gramme a day. But other Tesla vehicles still have this holding bolt. I wonder in fact when you try to disassemble the brake to changes the pads, if you don't need then to have the bolt?

[@zilogfan]

Why would you change the pads? I have 120000 miles and they are 3/4 or more of new.

[@1944chevytruck]

Surprised to see the amount of dirt build up in parts of the Chassis suspension.

[@M13x13M]

Did they ever find the Exoskeleton?

[@brianb-p6586]

LOL No, it doesn't have one, any more than any other unibody vehicle.

[@M13x13M]

@@brianb-p6586 Can you manage being the engineer that had to tell Elon that they would have to scrape the exoskeleton if they ever wanted to get the truck into production.

[@themonsterunderyourbed9408]

​@@brianb-p6586 The fact that the exterior skin provides 70% of the structural integrity during a crash qualifies it as an exoskeleton.

[@brianb-p6586]

@@themonsterunderyourbed9408 ... just like every other unibody.

[@motorv8N]

Fascinating segment - thanks guys

[@pitu72ger]

My favorite team. Thx guys.

[@arthurvandamme718]

That new intro animation 👀🥵

[@ericplatzke]

I know right!

[@capslock9031]

Kevin "Itself" Harty on it again! Great presentation, guys. Love it! (Don't do shots though, you'll be drunk in no time.)

[@MunroLive]

Kevin is great!

[@ericplatzke]

To late. 🥃

[@jamestreanor182]

Quality can be seen ❤❤❤ would love to see the upper and lower arms in castings too

[@stevenpaul6529]

Nice thanks. Can't wait to get mine...

[@OZBIE]

Could the threaded hole in the rotor also be used to press off the rotor during maintenance?

[@FxsX24]

No, the rotor would be threaded and the hub wouldn't have a hole. You would also see the same on the opposite side

[@davidanalyst671]

those damn holes never work. They always get rusted out and strip like your mom before they acutally help press the rotor off.

[@saff226]

​@@davidanalyst671never had that problem. I have used them heaps on lots of Suzuki 4x4

[@V10PDTDI]

I really like when sandy is not involved in the video he is too much Tesla fan boy . I would like to know if the truck is hit in the middle of the rear wheel and the aluminum casting is broken where the upper control arms are bolted is there a way to repair this this can happen when sliding and hitting a curb from the side ?

[@gerritgraafland4410]

on 2:20 i thought that they where from the start of the model 3 switched to SiCFets and not IGBT's for the power electronics for the invertors, whitch make sense as they are much more efficiënt so less heat to disapate

[@r.a.monigold9789]

Thank you for sharing!

[@MunroLive]

Thanks for watching.

[@ericplatzke]

Love the intro and the music! Keep them coming!!! 😉

[@MunroLive]

Thanks! 🎸🤘🏼

[@MichaelGreenLagos]

I wonder if each motor drives a single wheel for 4wheel drive because I saw a video of a cybertruck which had a problem with it there was a roomier going round it needed a software up date does anybody know if it work yet

[@bohicajohnson7203]

Those reinforcing parts on the giga casting look very organic. I've seen similar, in science fiction!

[@JamesWoodTN]

Where does the turbine-like sound come from? That hulking large section (gear box?) between what Director Jordan pointed out as motors?

[@Radium3D]

The Cybertruck has a locking differential so the gear box has a bit more to it maybe?

[@celeron55]

@@Radium3D The locking diff is at the front, I believe.

[@wtmayhew]

Totally back of the envelope: at 60 MPH, the axle rotation is about 675 RPM +/-. With a 10:1 gear reduction (?), the motor rotor RPM is 6,750. There will be whine from gear lash and windage noise from between the rotor and stator in the motor(s). Curiously, the locking rear axle is currently disabled in the Cybertruck firmware. That’s a big deal in off-roading. From what I’ve read, it isn’t clear if the rear axle lock is physical or virtual. There are advantages and disadvantages either way. The first EV I had was a 2011 LEAF which had very pronounced whine from the drive unit even at moderate speeds. The EV I have now is a 2017 Chevy Bolt and there is very little whine. There are fairly obvious differences between manufacturers. I haven’t owned a Tesla… yet.

[@wtmayhew]

Speaking of windage loss in electric motors… It isn’t insignificant. I’ll preface my remark as not being a motor designer. If I’m not mistaken, the Reynold’s equation shows pressure differential is proportional to velocity squared and thus power loss would be proportional to velocity cubed. There is a big windage penalty for running a motor at high RPM with tight clearance between rotor and stator. When I took a machines course back in the day, I recall reading about large industrial motors using tactics such as backfilling with hydrogen to reduce windage friction. There is a need to conduct heat out of the rotor, so a vacuum would only allow radiation. Hydrogen is slipperier than air and it allows for conduction of heat into the stator.

[@davidanalyst671]

@@wtmayhew has tesla or anyone else put a vacume in the motor to reduce noise? or is that the dumbest question you have heard all day

[@JanwarKali]

Sobrang laki ng motor, sobrang laki din Ng current Nyan..kung 10k watts parang Hindi pa kayang paikotin Yan..

[@joeennis2571]

the threaded hole on the brake disc is there to assist in removing it when it needs to be changed .

[@mwwhatever]

what do you mean by "stall out" when you're talking about electric motors? Like just running the current in such a way that it doesn't actually move the rotor and generates heat instead?

[@einher1]

I'd think so. So they saved a couple bucks and some weight by using the motor as a very expensive resistor. I'm glad the motors are so reliable and never fail. Oh, wait...

[@mwwhatever]

@@einher1 yeah, I was wondering how efficient that could be as a way of generating heat

[@ExploringCabinsandMines]

The lower A arm is a dirt collector.

[@mrm1885]

Designed for California not the rust belt :)

[@wtmayhew]

It is too bad that for whatever reason that the A arms aren’t aluminum castings. I was thinking the same thing. Being stamped and welded, even if it is powdered coated, that’s an invitation for corrosion. I live in a region who uses winter road chemicals, so I tend to notice such things.

[@celeron55]

@@wtmayhew Well, you'll probably be able to get cast or forged aftermarket ones, given the production numbers Tesla is aiming at. Of course, won't be as cheap.

[@ExploringCabinsandMines]

I still want a CT

[@AllistairNeil]

Drill some holes.😅

[@artemZinn]

Love it as usual, folks! Please cover the diff lock as you get to it! It appears that dual motor Cybertruck with electro-mechanical diff locks will be better for off roading as no one including Tesla and Rivian figured out the proper implementation of virtual software lockers?

[@rbfarrell1]

Great video as usual. Very interesting.

[@concinnus]

Single-caliper pistons seem underspec for a heavy truck. Regen might get you 0.4g of braking normally (and probably less on the base trim), but that will go down when towing.

[@feedvid]

Excellent video!

[@MunroLive]

Glad you liked it!

[@justinr9753]

What likely causes the rear wheel to fail during the front crash test?

[@erkkavilhunen7852]

Having seen crash test video when it first came out it was interesting to now see rear suspension design in detail. Based on how rear wheel moved in that crash it is hard to see how that movement could come from those suspension arms without something in them having broken in the crash. And failure happened simply because of rear wheel and suspension weight. Front end crash only provided sudden stop. Not the actual failure at opposite end of the structure.

[@bubpori5105]

A-Arms Stud Down Nut up Later Version Done Right ! Nice Duel Motored 3rd Member Heat Sinks, Rotor Guide Bolt for Flush Mounting to Hub Can Cock with Wheel Installation Leaving lug Loose or Rim Hub Crimp to one Side !.

[@TyPope]

How much steering angle is possible compared to how much the software allows at the moment? You are in a great position to see.

[@DougWedel-wj2jl]

Imagine the truck’s box having a bed 18 inches lower than it is now WITHOUT CHANGING THE LOOK FROM THE SIDE. Without sacrificing clearance under the vehicle. The bed on pickup trucks has always been a big step up because you had to accommodate the axle and differential, which was always the height as the centre of the wheels. The only way to lower the bed height is use smaller diameter wheels. Electric trucks don’t have the same restrictions. The trick would be to nest everything into the walls on the sides of the box. That is absolutely possible. It does mean rethinking how to arrange the parts, but it really can be done.

[@DericO-rz3be]

Good Dudes on this one!

[@rogerstarkey5390]

Essentially a great description 😉

[@ohlordy2042]

It would be really interesting, particularly for us vehicle engineering novices, to do side by side comparisons with "competitor" vehicles. e.g. Rivian or Ford equivalents. It would also be interesting to get overall impressions of execution (how good or bad the system is) compared to competitors.

[@WiseWik]

You have to drop the subframe to do upper control arm bushings 😂 Truly a visionary product

[@brianb-p6586]

That's bad, but there are cars which require removing the engine to change spark plugs. Some mechanical operations on pickup trucks require removing the cab.

[@maxflight777]

@WiseWik 🤡

[@WiseWik]

@@brianb-p6586 on 911s that's normal. You expect that from a luxury sport car. With this thing, supposedly an off-road capable vehicle, better not put that wheel at a wrong angle.

[@rcjbvermilion]

Those threaded holes on the brake rotor may also be for removing stuck on rotors. By threading a bolt into the hole, it can break a stuck rotor loose.

[@yuricorrea2491]

With megacast's ribs and structural "ribs"(I don't know what they're called), feels like vehicle structural parts are more and more organic.

[@4literv6]

Bio mimicry or bio mimetic design at its finest. 👍🏻

[@markplott4820]

GIGACAST parts are very Organic. the IMPRESSIVE front end was created on the OLDER 6600 Ton press. the Rear uses the 9000 Ton press.

[@davidanalyst671]

Sandy Munro did a segment on the giga castings. That was one of his comments that instead of a car frame, it looks like it was designed by nature

[@gaobims7969]

Are they using IGBT instead of SiC MOSFET? 2:40

[@Chas_Reno]

Great Job!

[@MunroLive]

Thanks!

[@mini2nut67]

I couldn’t help but notice the lower control arm “pocket” that will collect municipal road salt/slush/snow in the Midwest states. Look at 16:25 in for reference. But hey, they don’t use road salt in CA where parts were designed.

[@ronkuhlmeier6414]

This dish is too salty!

[@tobyw9573]

Looks like Bilstein shocks - Good! Are they single tube?

[@felixweinreich3999]

How can you state it is IGBT and not SiC MOSFET before even opened the inverter? For 800V IGBT are not very common and have higher losses.

[@maxtorque2277]

When you have a cast alluminium subframe, or in this extreme case, entire cast rearbody box unit, then having pressed steel lateral arms that can be deliberately designed to fold BEFORE the cast bit breaks is really quite important. Hit a kerb sideays, or experience a similar large lateral impact say alow speed side impact from another vehicle, and if the rearbody casting cracks the entire vehicle is immediately a write off! You absolutely need the arms to fold in a controlled way first!

[@tnez2009]

Excellent!! 👍

[@qingyuhu]

Tesla engineering is at another level. The long arm suspension designed from very beginning gives CT tremendous performance potential! After market people with longer control arms will make this thing unbelievable!

[@bob15479]

in what case would a rear tie rod not also be a toe link...? To me they are the same thing only one moves.

[@Vlperine]

Why not run one wire from the battery and fork it at motors/inverters?

[@davidanalyst671]

so theres this thing called electricity. In electricity when you want to use it, you need to create something called a circuit....

[@Vlperine]

Bravo genius... obviously I mean 1 set of wires instead of 2. Inverters are right at the motors, right?

[@user-roadwander]

Anybody on here see potential for corrosion, etc problems with lower a-arm debris catcher?

[@cronix1]

this video could really do with some crisp disassembly visuals as cut scenes so we can follow better where in the vehicle all these important insights you raise, are located. Still enjoy your stuff overall, just providing valuable feedback. Keep it up team.

[@canoogansfusionfoodsalts]

🌈🌎🐉 Fr Canoogan says heya to the 🌈🌎🐉Big Man on the tools...cool to see him work, along with the 🎶

[@trampfossil]

Could the drum bolt threaded hole actually be a receptical for a robotic control arm bolt.??

[@chrisss73841]

For $100k they could at least put some anti-seize on the tie rod threads! Aluminum may not rust but the threads will seize anywhere that uses road treatments in winter.

[@davidanalyst671]

before RONA, the NHTSA made tesla do a recall on one of their model X i think because there was a cable to release some seat mechanism, and Tesla did not put any oil on the cable. Its the little things that get you.

[@Constant_Distant_Instant]

I thought they're using silicon-carbide MOSFETs on the cybertruck instead of IGBTs...

[@felixweinreich3999]

100% my thought

[@Billscienceguy]

Control arm pivot points have no affect on the half shafts. The wheel position (up/down) is the only thing affecting the half shaft angles and that has to be the same no matter where the control arms are connected. That being said, yes the half shafts are pretty long. Some of the longest IRS control arms I've seen belong to the Taurus wagon.

[@ulwur]

Will the toe-in of the real wheels change with the position of the suspension?

[@tacosdecamaron]

Isnt it cheaper in terms of complexitu and scale to create both front and back suspensions/ cradles the same? That would also help reduce the extremeangles required on the front. Also mayne potentially have a quad motor config

[@markskou4093]

I am very curious to hear your thoughts on why Tesla used adjustable steering rods, why do they not have a one part rod and let the steering motor and computer system self adjust (perhaps in service mode)?

[@schonja9]

Does it have mechanical lockers inside of the differential?

[@RoamMeYo]

14:10 obviously you are not a service mechanic/engineer. That is a rotor break loose threaded hole to assist removal of a stuck rotor to the spindle, which over a period of time the rotor will rust-weld to it.

[@RoamMeYo]

We hate cost saving design engineers. they suck. Jordan is one of them.

[@Dave5843-d9m]

Steel under frames are notorious for corrosion. Out of sight out of mind. That steel control arm looks ripe for hidden and festering rust. It really should (at least) be wax dipped to seal all the rust traps.

[@markplott4820]

the Entire underbody is e-Coated as are the Gigacastings. the upper arm can be Upgraded by Unplugged.

[@brianb-p6586]

With the upper control arms located directly on the vehicle structure - not on the cradle - the cradle can't be vibration isolated; the cradle must be solidly bolted to the vehicle structure.

[@DougWedel-wj2jl]

Thanks for sharing this video with so many design essentials! I think I got enough info to do away with almost everything. This assembly looks like weighs maybe 400 pounds. It’s a massive monster! It should be possible to reduce the weight to 1/3 so that would be about 130 pounds. I need to warn you it will sound like I wasn’t listening to your words at all, things like how the half drive shafts you want to keep them straight as you can because it’s harder on them to have stronger angles. I heard you, just want to know if the design can be pushed somehow. I’m brainstorming, not coming up with complete ideas. :) You have the cradle itself, which is a frame that everything attaches to. What stops you from mounting everything to the gigacasting? I saw the rear gigacasting looked like a wishbone, so maybe this cradle makes up for that but it’s an extra part that may be deleted. When I look at the assembly from the front or back, I see upper and lower control arms, drive shaft and steering arm. Everything except the upper control arm is at the mid point of the wheel or lower, which limits how much clearance the truck has. Look at the front wheel of some bicycles. Some have just one front fork instead of two. It doesn’t have rocker arms. That could be done here so you don’t have the lower rocker arm set so low. Of course it would need to be heavier duty than what a bicycle has. But the suspension tower could be incorporated into it and maybe steering as well. If this tower was at a bit of an angle the shocks striking from the front would be absorbed better rather than if the shock tower was completely vertical. The way the drive train is set up, you have a universal joint at the wheel, maybe a second one at the motor transmission, gears, then the electric motors are flipped, set off because you don’t have enough width to continue to the side. First, because you have universal joints, there is no reason to keep the assembly straight side to side. Instead of going 90 degrees to the front back axis you could cant the drive shafts about 10 degrees one towards the front and the other to the back, so they are 20 degrees angled from each other, which means you can put one motor ahead of the other and keep the drives in line to themselves. You don’t need to set the motors back and reverse them. It might be possible to angle this up and down instead of front to back. Not that you want to do it with this truck. But you can do better because the drive shaft goes to the centre of the wheel, so that limits your clearance. Place the motor at the top of the shock assembly and run your gears down to the wheel so instead of having the drive shaft come horizontally somehow the drive goes to the plate that hosts the brake caliper. Some of this might work better on a lighter vehicle like the one they are calling the Model 2 before doing it on a heavy duty truck. But if this stuff can work on one vehicle it would be easier to design a more durable version of it for the Cybertruck or even the semi. I’m no expert so people may have thought of all this before and found it doesn’t work or it’s easier the way it is now. But I thought maybe there is a chance it does work. It might also be possible to extend the battery pack towards the front and towards the back to lend a bit more rigidity and cover up all this underside. Just leave space for the wheel wells. Or maybe the battery pack cover might be extended towards the front and back, not the entire battery pack. Have a nice day!

[@wizzyno1566]

Yeah. Because you know more than the Tesla Design Department... 😂😂😂🤡

[@DougWedel-wj2jl]

A cutting edge design team is humble enough to consider new ideas no matter who suggests them. If it’s a question of one person or team being better than others, you cut off the best ideas from the decision makers. What makes Tesla great is they are crazy hungry for the best ideas. They will try almost anything.

[@HugoJunkers-lc4kk]

Faulty construction? - As far as I can tell from the video, the upper ball joint on the edge support cannot be replaced - apparently the entire wheel support needs to be replaced in case of wear. If so, it not only costs more working time but also a lot more money than a single ball joint.