Apparently DEC redid their design; my entire assembly is quite different and "it just works". I imagine that you aren't the first to be flummoxed by their original design.
In my6 case there is no bump-out sub-assembly spot-welded to the plate, instead there is a separate wide-flat U bracket where the ends attach above/below to the plate (which is threaded) and the middle attaches forward to the console (which is threaded). The wide-flat U bracket is first attached to the flat-plate (chassis in any position). The flat-plate has a wide notch aligned with the attached wide-flat U bracket center to allow the console to be screwed in from the back (chassis necessarily extended). The 3-U filler panel is attached with Velcro to the flat plate; no ball-breaking required :->. -----Original Message----- From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Fritz Mueller via cctalk Sent: Monday, April 19, 2021 1:45 AM To: General Discussion: On-Topic and Off-Topic Posts Cc: Noel Chiappa Subject: Re: DEC BA11-K KY11-L mounting brackets -- how? > On Apr 18, 2021, at 7:40 PM, Noel Chiappa <j...@mercury.lcs.mit.edu> wrote: > There's an intermediate 10" or so high adapter piece (one either side, of course) mounted to the KY11-L... on the bottom, a single 1" or so machine screw (#8, I think) goes through the vertical tab on the side at the front of the BA11, to a tapped hole in the adapter piece. Thanks for the details, Noel! Pictures of my brackets should be viewable at https://photos.app.goo.gl/wni3mDAQHozK9Ho27 The interesting/confusing bit for me is the bottom part... In the second picture you can see that my brackets just have a punched oval hole at the bottom, and not a "tapped hole" per your description above. The tabs on the chassis to which these brackets mount all have #10 press fit threaded bushings. The bit at the top, with the plastic pieces (called out on the parts lists as "latch, molding") and countersunk #10 screws is clear, and looks like what you describe. ... cheers, --FritzM.
