My suggestion is similar to Jim's if I'm following. That said, the first thing I would do is measure the carcass and drawer to see if anything is out...
I'm not sure what your first question means. If I needed to shim the front out 3mm at one side I would use a 3mm shim strip at the front corner and a...
David, have you been re flattening iron every sharpening? I cant think of how it no longer will tighten properly unless the iron has gotten thinner....
If you can move the tails of the slide sideways that can take care of it. Move the tails away from the side that sticks out. This will move the front...
Fitting a square into a parallelagram is not going to work. The easiest may be cutting a tapered board to fasten to the front of the drawer and then...