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Tesla is addressing these issues with metal casting cars in big pieces. If you watch the interview the issues are supposedly due to accumulation of errors on sm

Tesla is addressing these issues with metal casting cars in big pieces. If you watch the interview the issues are supposedly due to accumulation of errors on small parts. Metal casting will eliminate all these errors. They already do that on Model Y. They just don't have enough operational capacity to roll it out across all manufacturing lines according to Elon. If you watch tear down by Sandy you can compare old Model 3 manufacturing and the new Model 3 manufacturing. There is a lot of changes in welding techniques, amount of welds etc. everything gets simplified and more streamlined. With one piece casts as the final goal.

Alupis 6y ago
I'm still not seeing a reason why mis-aligned body panels ever left the factory. New process or not... some person bolted it on incorrectly, then allowed it to go out to the customer. Are we to believe Tesla has zero QC? How do things like this occur? These are all solved problems companies like VW figured out decades and decades ago... Tesla is just insisting on figuring them out on their own all over again.
- carlmr 6y ago
  Yeah, I mean Elon refused to learn from the best. It's not like there are hundreds of books on the Toyota Production System. It's not even a secret. He had to actively ignore it. https://www.forbes.com/sites/joannmuller/2018/02/16/tesla-thinks-it-will-school-toyota-on-lean-manufacturing-fixing-model-3-launch-would-be-a-start/ https://www.forbes.com/sites/joannmuller/2018/02/16/tesla-th...
  - throwawaysea 6y ago
    The Toyota production system is less about the physical manufacturing techniques and more about the framework for their industrial and corporate process. I imagine it still takes time to fix each error that accumulates into a panel gap ultimately.
    - carlmr 6y ago
      It still takes time, but he's not following it, otherwise the line would be stopped when a worker spots a quality issue, e.g. paint not dried, or Panel gaps misaligned. Also in the TPS you only automate processes that you know exactly how to do manually. Elon tried to start with automation from the start, ignoring that automation of processes you only know partially ends up multiplying your quality issues.
- phil21 6y ago
  I've listened to multiple interviews that state body gap consistency is one of the hardest bits of mass vehicle manufacturing to get right. I highly doubt QC was sending cars out they didn't know about - it simply was too time consuming to manually fix, so they only fixed the absolute worst ones and hoped most customers wouldn't care enough to force them to fix later. Tesla is some mix between car company and software company. Someone did a calculation where it was cheaper to ship now and take a hit on the % of customers they upset. That someone obviously was completely vindicated in their decision - the vast majority of their current customers apparently do not care enough body gaps to stop buying.
  - kthejoker2 6y ago
    Yeah, you might want to avoid having your car manufacturing QC process compared to the Ford Pinto .. https://www.tortmuseum.org/ford-pinto/ https://www.tortmuseum.org/ford-pinto/

Alupis 6y ago

I'm still not seeing a reason why mis-aligned body panels ever left the factory. New process or not... some person bolted it on incorrectly, then allowed it to go out to the customer. Are we to believe Tesla has zero QC? How do things like this occur? These are all solved problems companies like VW figured out decades and decades ago... Tesla is just insisting on figuring them out on their own all over again.

carlmr 6y ago
Yeah, I mean Elon refused to learn from the best. It's not like there are hundreds of books on the Toyota Production System. It's not even a secret. He had to actively ignore it. https://www.forbes.com/sites/joannmuller/2018/02/16/tesla-thinks-it-will-school-toyota-on-lean-manufacturing-fixing-model-3-launch-would-be-a-start/ https://www.forbes.com/sites/joannmuller/2018/02/16/tesla-th...
- throwawaysea 6y ago
  The Toyota production system is less about the physical manufacturing techniques and more about the framework for their industrial and corporate process. I imagine it still takes time to fix each error that accumulates into a panel gap ultimately.
  - carlmr 6y ago
    It still takes time, but he's not following it, otherwise the line would be stopped when a worker spots a quality issue, e.g. paint not dried, or Panel gaps misaligned. Also in the TPS you only automate processes that you know exactly how to do manually. Elon tried to start with automation from the start, ignoring that automation of processes you only know partially ends up multiplying your quality issues.
phil21 6y ago
I've listened to multiple interviews that state body gap consistency is one of the hardest bits of mass vehicle manufacturing to get right. I highly doubt QC was sending cars out they didn't know about - it simply was too time consuming to manually fix, so they only fixed the absolute worst ones and hoped most customers wouldn't care enough to force them to fix later. Tesla is some mix between car company and software company. Someone did a calculation where it was cheaper to ship now and take a hit on the % of customers they upset. That someone obviously was completely vindicated in their decision - the vast majority of their current customers apparently do not care enough body gaps to stop buying.
- kthejoker2 6y ago
  Yeah, you might want to avoid having your car manufacturing QC process compared to the Ford Pinto .. https://www.tortmuseum.org/ford-pinto/ https://www.tortmuseum.org/ford-pinto/