From 8b4b10d73700e2bd620b33a75d94aa17020b5823 Mon Sep 17 00:00:00 2001 From: Sylvain Munaut Date: Wed, 28 Oct 2020 00:41:55 +0100 Subject: [PATCH] mechanical/icE1usb-case: Update ECN with 1st production run infos Signed-off-by: Sylvain Munaut Change-Id: I745cdcdf9f801b8c4abeef63fe57740ca2c30c44 --- mechanical/icE1usb-case/ecn.md | 17 +++++++++++++++-- 1 file changed, 15 insertions(+), 2 deletions(-) diff --git a/mechanical/icE1usb-case/ecn.md b/mechanical/icE1usb-case/ecn.md index 0926610..328d433 100644 --- a/mechanical/icE1usb-case/ecn.md +++ b/mechanical/icE1usb-case/ecn.md @@ -80,8 +80,21 @@ Production version, sent to manufacturer for production. ### Manufactured -n/a +* A run of 55 cases has been done, with end panels cut by the manufacturer. ### Issues noticed -n/a +* The cases are nominally 85 mm long, however seems all of them (both from prototype and + production were slightly longer by about 0.2-0.4mm). This might be a result of the surface + processing. + +* The SMA hole is very close to the chamfer of the screw hole, leaving very little material + between the two and on a couple of panels, it was ripped out or slightly bent by the end-mill + during manufacturing. Most panels were fine and some slightly bent one could be corrected, + but something to keep in mind. + +* Also as a consequence of that we can't put a nut on the SMA on the inside (to grab panel by + both side). Although I'm not sure it'd be good anyway. The SMA is the only element fixed to + the panel (and thus the case), so all the forces of plugging connector are transfered through + the PCB, through the SMA to the case. (because the PCB is slightly loose in the case to account + for possible tolerances, see also comments in the PCB ECN).