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baby_souffle 5 days ago

I spoke to them a lot at OpenSauce.

- The body panels were composite but they want to go to stamped metal for production. - It's based off of the subaru ascent; at least most of the frame and suspension is. - NMC chemistry, didn't get an OEM name for the actual cell/pouch though. - Mostly off the shelf Bosch power-train components. Will be interesting to see a tear-down once they're for sale. - No commitment on how "open" the vehicle will be to modifications. They have designed in attachment points for upgrades but it didn't seem to be anywhere as extensive as what Slate is doing. This makes some sense; they have a more "finished" vision where Slate is intentionally taking the "our vision is for you to buy the canvas from us and then make it your own" approach.

On that last point, I don't think Slate has released anything substantial either w/r/t the CAN bus either. As far as I know, their plan is still a BYOD approach for the head-unit so here's hoping that it'll be relatively straight forward to interrogate the busses from an android or linux device. The Telo had a head-unit integrated so who knows how much control you'll have over the vehicle.

cduzz 4 days ago | parent [-]

I wonder if there's some business model like a mixture of send-cut-send and TSMC where a "FAB" agrees to stamp out 3000 fenders/doors/roofs and ship them to the customer (who then puts together the cars and paints them and such).

This is similar to what lotus did to help bootstrap tesla...

And hey, maybe tesla's going to have some spare capacity lying around so they could be that FAB... ?

I personally really want this truck to succeed. I'd happily trade in my 10 year old model S for this; it'd make dump runs and trips to the garden / home centers a lot easier than in the S...

I do wish they'd go full eccentric and use a citroen inspired oil suspension...

jdietrich 4 days ago | parent | next [-]

Press tools for car body panels are extraordinarily expensive, which is why low-volume manufacturers generally avoid using pressings wherever possible. It's just inherently very expensive to carve two huge blocks of steel into a smooth curved shape, so you need to sell an awful lot of units to amortise that cost. Tesla's deal with Lotus only worked because they used a fibreglass body - expensive per-unit, but very low tooling costs.

Desktop Metal are developing a sheet forming solution that requires no bespoke tooling, but it's a slow process with fairly poor surface finish.

https://www.youtube.com/watch?v=6oqeVLILGHY

cduzz 4 days ago | parent [-]

Right -- this is why I use the analogy of TSMC -- chip fabs are also extremely expensive, for similar reasons.

What are the relative costs of the making die set, the press, and setting up and doing a run of stampings, and the facility and employees to actually house the whole kit?

As of right now, if you need to make a car and you don't have a NUMI or similar retired automotive plant sitting around, it's going to be expensive.

What about the hydroforming process?

I guess smaller car makers from the 60s that did make low volume sheet metal cars didn't need to pass crash tests.

Probably The Telo people should just team up with ineos....

numpad0 2 days ago | parent | next [-]

The process of a 3D model -> dies > panels that match the model is iterative. Tesla apparently cheaped out on that optimization paths and they had lots of issues towards rear left corner of cars, somehow on both Model S and X.

ODMs like Magna-Steyr and Valmet also exist. They take your plan, build some, and send to you on a ship from Central Europe.

convolvatron 4 days ago | parent | prev [-]

except the fab pays the tooling cost once per process and the tool and die company charges once per design.

I've actually worked a little on hydroforming, but unless you're thinking of a different kind, it was labor intensive, and prone to crinkling in bad spots. we basically concluded that we used less time and got a better result with an English. which would probably run at least $10k for a car body, if you could find someone willing to work for that low an hourly rate.

cduzz 4 days ago | parent [-]

Again, I'm confident that this is not a viable business, and certainly in no position to make it a viable business even if it was...

But places that make windshields keep forms around and make runs of windshields even for low volume cars; obviously there's less recurring need for fenders or floor pans... But there may be some way to financially engineer a "do a run we pay X per unit; hopefully that results in doing another run and paying X, and if we can get to 100X the per unit costs go down to some other target.

But I was thinking, and perhaps they should just make these cars out of ground up trabants or saturns. Tesla has demonstrated that some customers don't actually care about perfect finishes or gaps or whatnot; I certainly would be fine with a car made out of trabant, especially if it meant I didn't have to worry about dents...

mitthrowaway2 4 days ago | parent | prev [-]

Isn't that exactly what the automotive component suppliers (Magna, Bosch, Denso, Aisin, etc) do?

cenamus 4 days ago | parent [-]

I mean, isn't that literally just a supplier?

cduzz 4 days ago | parent [-]

Car companies tend to make the engines and the sheet metal body parts themselves; the tool and die setup to stamp out the sheet metal is enormously capital intensive and there aren't services to stamp up a bunch of sheet metal for you.