On Sun, 16 Feb 2020 11:17:18 +0000 (GMT), "Dave Liquorice"
wrote:

On Sat, 15 Feb 2020 16:15:12 +0000, T i m wrote:

I'm sure we have all biased / eased something in one direction when
final tightening to make it sit better? ;-)

Yes but with door hinges the counter sinking of the hinges just
pushes everything back to where it was as you tighten up.

True, except you can still get some slack on some things (even
countersunk things) and can bias the whole lot one way or another
before finally tightening up.

I get that if we are talking door hinges (I wasn't specifically when I
used 'something' above) it's all hardwood, the recess for the hinge is
a good fit and the screws a close fit though the hinge and woodwork,
you won't be able to do much at all.

In softwood, with some slack in the start of the hole and with some
space round the hinge, I believe you can (only if only a tiny bit).

I sorted a mates glass shower door to glass walled shower doing
similar. I pre loaded the hinges in the glass to exaggerate the 'lift'
and then held it high before clamping the hinges. The extra support
offered by the packing meant the hinge wouldn't drop (or drop as
quickly) as before (as the clamping force on the hinge wasn't
sufficient to hold everything in place as the door was opened / closed
and got wet etc).

Cheers, T i m

[1] I've even 'biased' substantial metal frames one way or another by
first moving / pulling / holding them in place with clamps / levers
and then bolting them though. Not my preferred way though, I like the
idea of things being unstressed when in their final place. ;-)