6 Feb
2019
6 Feb
'19
10:42 p.m.
On 2019-Feb-06, at 7:48 PM, Chuck Guzis via cctalk wrote:
On 2/6/19 6:33 PM, Brent Hilpert via cctalk wrote:
Well, maybe they changed the hinge design slightly for the model you're looking at.
Here are some pics of the 7970A with the transport open at 90 deg:
http://madrona.ca/tmp/HP7970A/hingeTop.jpg
http://madrona.ca/tmp/HP7970A/hingeInt.jpg
http://madrona.ca/tmp/HP7970A/hingeExt.jpg
That's about 1-1/4" between the flange and the cast frame.
There's no way you're angling a regular shafted screwdriver in there to adequately
tighten screws.
One could undo the catch that limits the angle of swing, but I still don't expect
it's going to swing far
enough to get the frame out of the way, let alone the PCBs and motors still in the way.
(The black part next to the Al flange is the 'proper' steel mounting bracket.)
Flat-head hex bolts with a shortened allen-key could do it, as long as the tensional
strength of the screw-heads was adequate.
Granted you could drill the holes from the rear
of the flange,
however from what I can see the hinge design doesn't look like it
will allow the transport frame to swing far enough to clear access
for the screwdriver shaft to tighten the screws from the front (might
swing to around 110deg, but not to 170-180). The 2-1/2" thick
transport frame pivots near the middle of it's thickness, at 90deg
half the thickness is still well across the flange. You'd need a ~ <
1" clearance right angle screwdriver to fit between the flange and
the transport frame, or bolt head screws and box wrench which then
necessitates the milling of clearance for the heads out of the cast
frame.
Nah, there's plenty of room to get a screwdriver in there. I've had
much tighter spots. 
