So I don't think any of us really know what's going on at the production line (we don't even know how many they have, as witnessed from the "Is GA1 the first Model 3 line or the Model S/X line" debate). I'm also not sure it matters. Clearly some of the innovations they tried in general assembly worked, others didn't, and they're trying new ones. Model 3 was designed for simplicity of general assembly and was deliberately designed to *allow* robots to do the general assembly; maybe that wasn't entirely successful, but it's still a shorter general assembly process than most cars, apparently. They'll be able to make good production rates with decent margins, and they'll be able to set up general assembly in Europe and Asia from kits.
Paint is probably the controlling bottleneck now. I doubt we'll get any color on that... (pun intended)... unless someone asks what the current production bottlenecks are at the next quarterly conference call.
Some color from GA4:
"Lines 3 & 4 are crammed and line 3 still puts out far more"
"Both lines have made a miraculous ramp"
"The cars come in so fast there is zero down-time. It's impressive how quick all the workers are getting"
"We get real time info; there's a big-ass monitor in the middle of the line" (showing GA3 vs GA4 throughput)
"Elon was here for the night shift last night"
"I've been up and down and pretty much know where every component in the car goes"
"As long as there's no parts shortages we'll be fine"
"It’s pretty wild how easy going the engineers are about this move from Deer Park. First time most of them have had to work the factory and they all take it in stride / understand how important it is"
"Nobody wants to be seen at Deer Park right now. This would not have happened at [previous company]"
" I think that tamberrino fellow made a foolish bet"
Say whatever about the ad hoc character of GA4, one does get a sense of mission and spirit about this whole venture for those actually creating these vehicles.
It's not Henry V (cuz St. Crispin's Day is in October), but for a moment, with the description of the whole endeavor from the line workers' perspective I got a little jab of:
"And gentlemen in [Deer Park] now a-bed
Shall think themselves accurs'd they were not here" apologies to Will S.
Sooo, I've seen the short- tweeters...what kind of a-holes gleefully plot and bet against this crew?