Once the mortises for the knife hinges are successfully created and care is taken to make certain the offsets are uniform and the depth of each knife leaf is consistent, the next step is to temporarily install the doors while fitting each door to the cabinet. The reveal around each door is important as well as any small differences in how the doors hang within the cabinet frame. In this photo the cabinet is reversed in orientation top to bottom for me to work on the fitting. The left door is in the photo. The knife hinges have a very small amount of leeway for me to adjust the doors so the reveal at both the top and bottom and the center part between doors is uniform.
I also need to be conscious of how the outside edges fit the cabinet , they need to be parallel and in the same plane as the cabinet sides. The fitting of the doors can be somewhat time consuming but in my opinion this needs to be done correctly at this stage or the visual impact of a non-uniform reveal will be very apparent later.
After completing this fitting and knife hinge adjustment I will be creating the lip at the juncture of the doors in the middle of the cabinet. The lip serves to hide any open space between the doors and also to create an interlocking, positive closure for the doors. The right hand door will have a rabbeted lip whereas the left hand door will have a additional piece of beech added to the rear of the center edge of the door to form a mating lip. To maintain grain matching I have pieces of beech left over from the same plank I used to resaw the veneers earlier.
We have plenty of snow up here at this time , more than the average winter, and my wife and I will be leaving for a skiing trip at a resort next week. We're both crazy about spring skiing and there is plenty of nice weather coming up.