CYBRSMTH
Well-known member
Those are some trippy old skool wheels.![]()
Best wheels so far.
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Those are some trippy old skool wheels.![]()
Best wheels so far.
Are you suggesting that the exterior of a DeLorean is something other than stainless steel?Or stainless steel.
Those are the DeLorean wheels, very 80's.Those are some trippy old skool wheels.
Spotted by @BladeBronson
PHOTOS:
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WALKAROUND VIDEO:
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Question: If the Delorean's stainless steel skin could be shaped and curves pressed into it (look at the Delorean fenders and quarter panel sections especially), then why can't the Cybertruck have some slight curves pressed into it's skin for added rigidity?Answer: The Cybertruck's 30X stainless steel is said to be much thicker and harder than the Delorean's relatively common 304 grade of stainless, thus making it much more difficult to bend or form. While it's easy to find that the grade of the Delorean's stainless is 304, I've yet to find a source confirming the guage or thickness of the Delorean panels (but @CyberGus 's post above puts it a less than 1mm thick, which would make sense).
I've always said that Tesla 'advertises' by example. What I continually maintain and assert is that Tesla doesn't need 'MSM' advertising at all. Those pushing 'MSM' advertising either are connected or supportive of that industry in some way, or they are not evaluating the correct perspective.Is this Tesla's advertising campaign?
I think people are expecting some sort of massive X and Youtube ad launch, but what if next shareholder meeting they're like, "what do you mean? We HAVE been doing advertising. Didn't you see those RC trucks we parked everywhere!"
Yeah, I kind of mixed up the 'thickness and hardness' terminology a little as reasons for less malluability, but I also was referring more to the hardness factor too. I wasn't trying to be ultra concise I guess but moreso was just pointing out the general differences. As for 'scoring' to assure a nice sharp bend in a brake, I'm thinking they might be doing just that for the bend between vault side to sail-pillar side, and also to bend the skin for the doors.The thickness of the panels on the Cybertruck have nothing to do with why they can't be pressed into shapes and curves like the DeLorean, nothing at all. The real reason is only hinted at above, it's because it's been work-hardened to a full-hard condition (according to Elon).The cold-rolling (work-hardening) has densified the metal and modified the structure of the metal on a microscopic level. It's always possible we will find out it's only been cold-rolled to 3/4 hard, to make fabrication easier, but until I hear differently, I have to go with what Elon actually said, full-hard, even if it was three plus years ago.In any case, a work-hardened stainless steel will have completely different physical propertities than the same stainless steel in a full soft state (before cold-rolling). Cold-rolled stainless steel will be more corrosion resistant, more scratch resistant, harder to bend, dent, penetrate, drill and cut. You will need special extra-hard bits if you want to drill or machine it. It will polish slower.Good luck trying to press it into a 3D mold, it will break a normal press, and if you have an extra-heavy duty press and hardened molds it will simply split the metal, not bend it into a compound curve. Cold-rolling can also cause a stainless steel that is non-magnetic to become slightly magnetic.The Delorean was almost certainly stamped from full soft (annealed 304) stainless steel but it may have been possible to stamp it with lightly hardened steel, like 1/8 or 1/4 hard. Maybe @CyberGus knows if it was full soft or slightly hardened? The stamping process would have had a slight cold-working effect, and made it minimally harder than full soft, even if it started as full soft.Simply creating a straight bend in a sheet of full-hard 304 ss on a metal brake can require the scoring of the inside of the bend to reduce the required clamping pressure of the brake to keep the brake tight to the peice being bent (that's a function of how hard it is to bend), and also relieve the compressive forces inside the bend and the tensile forces outside the bend. Trying to force it to bend in a tight radius without scoring can cause the metal to split open and can only create a bend with weak strength.I'm still holding out a small amount of hope that Tesla is starting with full soft stainless steel and hardening it in-house, after they cut it to size and shape, and as they form it, but that's kind of a pipe dream and would probably require more development time than what Tesla has had. This would avoid the difficulty of cutting and shaping full-hard ss, and eliminate the need to score the bends with a laser, since the bends could be formed as the metal was being roll-hardened. Of course, such an ambitious process would likely invite a real nightmare of trying to get each panel to come out consistently, I'm not sure if it's even reasonably feasible. I give it only a 15% chance, given what little I know. It would require a huge investment in expensive custom cold-rolling machinery, something even metal foundaries don't do, AFAIK.The thing that makes me think it might be possible is that the panel width would be much more manageable than the much wider rolls that come out of metal foundries, with a coresponding reduction in required pressure on the rollers. This only makes sesne if Tesla was planning to spread the cost to develop the technology over millions of Cybertrucks. This kind of heavy equipment has a very long service life so it could end up being considerably faster/cheaper than buying pre-hardened rolls and dealing with all the fabrication challenges.
I always prefer full-hard, but I've no idea the "hardness" scale of the DeLorean stainless.The thickness of the panels on the Cybertruck have nothing to do with why they can't be pressed into shapes and curves like the DeLorean, nothing at all. The real reason is only hinted at above, it's because it's been work-hardened to a full-hard condition (according to Elon).The cold-rolling (work-hardening) has densified the metal and modified the structure of the metal on a microscopic level. It's always possible we will find out it's only been cold-rolled to 3/4 hard, to make fabrication easier, but until I hear differently, I have to go with what Elon actually said, full-hard, even if it was three plus years ago.In any case, a work-hardened stainless steel will have completely different physical propertities than the same stainless steel in a full soft state (before cold-rolling). Cold-rolled stainless steel will be more corrosion resistant, more scratch resistant, harder to bend, dent, penetrate, drill and cut. You will need special extra-hard bits if you want to drill or machine it. It will polish slower.Good luck trying to press it into a 3D mold, it will break a normal press, and if you have an extra-heavy duty press and hardened molds it will simply split the metal, not bend it into a compound curve. Cold-rolling can also cause a stainless steel that is non-magnetic to become slightly magnetic.The Delorean was almost certainly stamped from full soft (annealed 304) stainless steel but it may have been possible to stamp it with lightly hardened steel, like 1/8 or 1/4 hard. Maybe @CyberGus knows if it was full soft or slightly hardened? The stamping process would have had a slight cold-working effect, and made it minimally harder than full soft, even if it started as full soft.Simply creating a straight bend in a sheet of full-hard 304 ss on a metal brake can require the scoring of the inside of the bend to reduce the required clamping pressure of the brake to keep the brake tight to the peice being bent (that's a function of how hard it is to bend), and also relieve the compressive forces inside the bend and the tensile forces outside the bend. Trying to force it to bend in a tight radius without scoring can cause the metal to split open and can only create a bend with weak strength.I'm still holding out a small amount of hope that Tesla is starting with full soft stainless steel and hardening it in-house, after they cut it to size and shape, and as they form it, but that's kind of a pipe dream and would probably require more development time than what Tesla has had. This would avoid the difficulty of cutting and shaping full-hard ss, and eliminate the need to score the bends with a laser, since the bends could be formed as the metal was being roll-hardened. Of course, such an ambitious process would likely invite a real nightmare of trying to get each panel to come out consistently, I'm not sure if it's even reasonably feasible. I give it only a 15% chance, given what little I know. It would require a huge investment in expensive custom cold-rolling machinery, something even metal foundaries don't do, AFAIK.The thing that makes me think it might be possible is that the panel width would be much more manageable than the much wider rolls that come out of metal foundries, with a coresponding reduction in required pressure on the rollers. This only makes sesne if Tesla was planning to spread the cost to develop the technology over millions of Cybertrucks. This kind of heavy equipment has a very long service life so it could end up being considerably faster/cheaper than buying pre-hardened rolls and dealing with all the fabrication challenges.
That makes it sound like they were partially hardened, maybe 1/4 hard. I don't think full soft panels would be cracking.I always prefer full-hard, but I've no idea the "hardness" scale of the DeLorean stainless.
I do know that the panels were stamped, which was problematic at times (cracking or other stamping defects affected yields).
to "steel man" those folks arguments: they were being made in the wake of price reductions and views that demand was softening in various regionsI've always said that Tesla 'advertises' by example. What I continually maintain and assert is that Tesla doesn't need 'MSM' advertising at all. Those pushing 'MSM' advertising either are connected or supportive of that industry in some way, or they are not evaluating the correct perspective.
MSM advertisers want Money, but Tesla doesn't need the MSM. Some are trying to say there are a lot of people 'uninformed', or 'unware' of Tesla benefits, features, or specifications due to lack of 'advertising'. But Tesla actually doesn't need for 'everyone' to be aware in the first place. Tesla can't produce enough vehicles for 'everyone' at once right now anyway. Tesla is already reaching way more than enough people to keep long term demand assured.
Tesla cars already have gone 'viral' as a product. No amount of advertising will benefit Tesla if long term demand is already exceeding production levels. Those pushing MSM advertising are desperate for that normalized part of a business model. If Tesla continually succeeds in marketing and generating demand without MSM advertising, then other auto makers may be inclined to follow suit, especially considering the dire straits they're in right now. There are MSM stakeholders that certainly don't want this to happen.
- ÆCIII
That's why I said concisely "...long term demand".to "steel man" those folks arguments: they were being made in the wake of price reductions and views that demand was softening in various regions
i understand others disagree with those takes, and i personally don't take a position
but if one assumes that demand was softening, then the 'reason' for wanting advertising becomes obvious - even on your own account
Umm, yeah, we're referencing a pic of the new DeLorean, which is electric and not stainless steel.Are you suggesting that the exterior of a DeLorean is something other than stainless steel?