david charlesworth
Derek,

In my DVD on drawer making and fitting I started by tapering the carcase just a smidge. Wider at the back by two thicknesses of masking tape.

The drawer was fitted from the back, the aim being a drawer which slides out without friction, but tightens up when 2/3rds open, thus warning you not to dump the contents on the floor.

It was an interesting exercise but possibly not of use for large drawers, and I said that a parallel opening might be more useful.

Best wishes,
David