10-16-2020, 08:50 AM | #111 | ||
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10-16-2020, 09:42 AM | #112 | |||
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It appears that some M2 CS cars are not affected: (source: here - poll thread: here) For your info: Ferrari Enzo CFRP hood for Michael Schumacher back in 2003.
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10-16-2020, 01:53 PM | #113 |
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10-16-2020, 04:17 PM | #114 | ||
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10-16-2020, 04:51 PM | #116 |
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My further 2cents about the construction. Watching the CFRP roof creation video you will notice similar defects in the standard carbon roof. These defects are present until the material is placed under a large press. The M2CS roof with it's "honeycomb" center structure would/could not go through the same pressing process. It this process that stretches the material and removes the defects from loose regions in the material. The M2CS roof is likely handmade for a large part of the process and would need a special tool to strectch the material and sandwich the center structure without destroying it at the same time.
Try stretching out a net so that all cross sections are equal. Similar concept with a course woven material. If it gets stretched too much in any direction it can sometimes be very difficult to undo. Align the best you can and spray it with a ton the clear, or tinted clear like mentioned previously. I think we are seeing ripples in the fabric from not lying perfectly flat or not being cut to take into account the final curvature of the panel. Try nicely wrapping a ball with a piece of notebook papar |
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10-16-2020, 05:15 PM | #117 |
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M2 CS Carbon Fubar roof.
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10-16-2020, 05:33 PM | #118 | |
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Even this limited-run vehicle will realize gross receipts in the ballpark of $200M USD - not a big account for a mass-producer of cars, to be sure, but not chump change either. |
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10-16-2020, 06:17 PM | #119 | |||
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On the M2 CS on display in Los Angeles (Autumn 2019), there were also some 'raclette' sections closer to the windscreen:
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10-16-2020, 07:24 PM | #120 |
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Does the roof bow inward with respect to where the corners start at the front and rear window? If yes, then the material would have to pinch in a bit near the apex of the curve. One major defect at the apex or a few minor defects if you try to spread it out. This could be a roof pattern error that wasn't remedied.
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10-16-2020, 08:29 PM | #122 | |
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10-16-2020, 08:33 PM | #123 |
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10-17-2020, 10:15 PM | #125 |
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Ran into this on a youtube video I was watching, stuck out once you know where it is. Looks like same area as some of the other cars.
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10-17-2020, 10:42 PM | #126 |
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We most assuredly are seeing a trend. In hindsight it's not surprising the production issue would be more or less consistent from unit to unit. Occurring at the assembly level and not at the CF sheet formation level.
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10-18-2020, 12:37 PM | #127 |
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10-18-2020, 01:00 PM | #128 |
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One of my thoughts is this is part of the normal curvature of the roof shifting the material as evidenced in the videos and is somehow more difficult or more visible either because of the larger weave pattern or the structural sandwich layers unique to this roof construction.
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10-18-2020, 08:24 PM | #130 | |
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Now if there were REALLY perfect ones out there, I'd have an issue with it.. I have a feeling those who say are perfect either don't have a good eye or aren't looking at it in the right lighting condition
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10-19-2020, 03:46 PM | #131 | |
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10-19-2020, 04:07 PM | #132 |
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