Hacker Newsnew | past | comments | ask | show | jobs | submitlogin

Sandy Munro is a high quality commentator here, IMO people should not downvote this. Also the Giga Press is a fascinating piece of engineering.


He didn't add that much to the original video this time but the Munro teardowns are fantastic and I can't believe they are posted for free. Sandy is awesome.

People who don't know should check out the rest of the channel.


I imagine that Munro regards them as advertising for his main business which is supplying detailed analyses to corporate customers.


What would be the best couple of his videos to hook me up, if I'm not sure I'm actually interested?


Well they tear down cars. Including Teslas.

Originally he wasn't impressed because he found flaws. But Tesla fixed the flaws. And he changed his mind. That alone should sell you.

He is also a consultant, but a grumpy old one. That's entertaining in its own way, he goes into fun rants. Try this:

https://www.youtube.com/watch?v=g63SJwFdGTQ

Mach-E Motor: https://www.youtube.com/watch?v=g3qWBmz-j2k

VW ID.4 Battery Tray - 53% Weight Reduction: https://www.youtube.com/watch?v=cjJUpqo1YDM

Tesla Plaid Thermal System: https://www.youtube.com/watch?v=y4d2frvhcyY

Good engineering is good engineering. I'm not a hardware guy at all and this tickles my brain, the clarity of thought, the way they approach stuff.


Go to the videos page of the channel and sort by popularity.


> the Giga Press is a fascinating piece of engineering

Sure is. There's only what, 13 or so in the world at that size? And Tesla bought most of them.


*All of them. As far as anyone is aware, the very specific alloy needed is proprietary to Tesla.

Volvo has one on order, but Tesla still jas even larger ones on order for the Cybertruck


I wonder if they will be able to use the same ones for their upcoming semi’s?


They will very likely have some casting in the Semi but unlike these cars the Semi will be a Body on Frame design so these structures will be less load baring then they are in cars.

The Cybertruck will use it for the back-end but the structure will be in the exo-skelloton.


Thanks for that. I didn’t know these details. Is the body on frame design standard for semis?


Yes, the majority of pickups as well. Cybertruck is one of a few that isn't. Also some Toyotas and Rivian (I think).


Yes, and pretty much any truck of any size


I wonder if they’ll do anything off the wall like a maglev air ride suspension.


Very, very unlikely. Technologies like that don't just show up in mass production vehicles like that. Tesla want to make 1 million of those a year.

Cybertruck is already quite full of new tech. The Cell-To-Pack structural pack will still be very new. Exo-skelleton and stainless steal is totally unique (Delorian was just stainless panels). Cybertruck will have the upgraded package for 'self driving' meaning new cameras, new chips and so on. It will also have the famous security windows.

What we are not yet sure about is if it will include a higher Voltage for the internal electronics putting power and data on the same cable across the car. Tesla has been wanting to do that for quite a while.


Exo-skeleton from my understanding is marketing for unibody. like most vehicles other than traditional body in frame trucks.

Moving from 12v to 24 or even 48v makes a lot of sense. Not sure what you mean by power and data on the same lines, sounds like a horrible plan.


Eco-skeleton is a unibody, no question about that. But that doesn't make it 'marketing'.

Interior unibody was just always assumed because in cars (unlike planes) nobody ever did exo.

And its not a marketing features as it has a number of real advantages. Part reduction being one and smaller easier bodyshop. Not needing any paint anymore (a modern Painshop cost 500M).

> Not sure what you mean by power and data on the same lines, sounds like a horrible plan.

Well we have this things called Ethernet and PoE. Works pretty well for me.


the stainless yes, no paint shop.

> Well we have this things called Ethernet and PoE. Works pretty well for me

maybe I’m just being nit picky, but Poe isn’t power over the same data lines, it a separate set of wires in the same insulation jacket carrying power. I don’t see Tesla switching away from CAN to flex ray or something custom.


Fair point. But Musk actually said he wanted Ethernet at one point. Or maybe he said something like it, I don't remember.


PoE can run data and power on the same pair. Gigabit-PoE doesn't have spare pairs anyway.


speculation: tesla pivots and makes a semi-trailer-compatible variant of cybertruck

tri-motor can probably haul a 53 foot trailer right?

edit: from a brief googling, appears max tow capacity of tri-motor is approx 14,000 lbs, competitive with a F-350 dually; dry weight of 53 foot trailer happens to be around the same, sounds heavy to me but what do I know

Still, could be good for ~20 footers, nothing to sneeze at


You’re onto something! Bear with me…

Tesla CyberTowTruck.


The way Elon tell the story, Tesla approached several companies about designing the gigapress. One company said “maybe” and the rest said no, and thus the gigapress was born. So it’s not just that they bought it, but they had some hand in its creation.


Sandy Munro has been a Tesla shareholder and may be at this time - he's not exactly the best at disclosure.

For this reason, I think anyone who legitimately cares should be quite skeptical of any opinions he has about Tesla and EVs at large.


He was very negative on Tesla at first, then observed their improvements first hand and realized they were rapidly improving and were willing to throw old things out no matter the investment.

It was only at that point 1-2 years after he started making Tesla content that he bought shares.

He is not delusional enough to think that he himself moves the stock price. If he thought Tesla was falling behind or stopped improving he would simply sell the stock (at lots of profit) and tell people that Tesla is going in the wrong direction.


Last time he mentioned Tesla shares in a video, he had sold them for a nice profit, but is no longer holding shares.


Kind of funny, related to this, is that Munro was also very impressed by the V8 Tesla from Rich Rebuilds.

https://youtu.be/WJJydf7jTcI


I got the sense that Sandy was being polite, i.e. focusing on any positive things rather than pointing out any understandable flaws you’d expect from a semi-amateur garage build.


I am not so sure. He really was impressed by how they manages to put in that V8 into the small space.


It is very instructional to watch his early commentary and compare to now - the speed of changes and improvements is phenomenal.


Well in any case the change in his enthusiasm for and devotion to Tesla is phenomenal.


Well he said he has been pitching large casting to OEM for a decade+ and then he sent a free suggesting excel table to Tesla after their analysis.

Within less then a year Tesla was pushing hard into that technology and invested many 100s of millions into it.

We don't of course know if Tesla did that because of his suggestions but they did 'the right thing'.

He also just bought a Rivian so he clearly is happy for all well engineered products.




Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact

Search: