mechanical/icE1usb-case: Update ECN with 1st production run infos
Signed-off-by: Sylvain Munaut <tnt@246tNt.com> Change-Id: I745cdcdf9f801b8c4abeef63fe57740ca2c30c44
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@ -80,8 +80,21 @@ Production version, sent to manufacturer for production.
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### Manufactured
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n/a
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* A run of 55 cases has been done, with end panels cut by the manufacturer.
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### Issues noticed
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n/a
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* The cases are nominally 85 mm long, however seems all of them (both from prototype and
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production were slightly longer by about 0.2-0.4mm). This might be a result of the surface
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processing.
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* The SMA hole is very close to the chamfer of the screw hole, leaving very little material
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between the two and on a couple of panels, it was ripped out or slightly bent by the end-mill
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during manufacturing. Most panels were fine and some slightly bent one could be corrected,
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but something to keep in mind.
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* Also as a consequence of that we can't put a nut on the SMA on the inside (to grab panel by
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both side). Although I'm not sure it'd be good anyway. The SMA is the only element fixed to
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the panel (and thus the case), so all the forces of plugging connector are transfered through
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the PCB, through the SMA to the case. (because the PCB is slightly loose in the case to account
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for possible tolerances, see also comments in the PCB ECN).
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