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If you want modular boxes, boxes that can be joined in any configuration while maintaining consistent gaps/reveals (as in the drawing above), there are only four possible panel designs. There are two reveal options and two indexing options. All full-overlay modular box/panel heights are a multiple of 32mm (sans feet and counter).
For the gap between the faces (door, drawer, etc.) of stacked boxes to be the same as the gap between all other faces, the sum of the box to face reveals (top + bottom) needs to equal the gap between faces (typically 3mm). You can have the faces flush to the bottom of the box (full reveal at the top, e.g. 3/0mm reveals) or split the reveal evenly between the top and bottom of the box (e.g. 1.5/1.5mm reveals).
Placing the full reveal at the top allows the gap between the top drawer/door and countertop, top mounted crown, etc. to be the same as the gap between the drawer/door faces. It also allows everything (applied ends, fillers, etc,) to be flush with the bottom of the box. This is really the only way to make stackable boxes that look and work good in all applications. The drawback is that unbalanced reveals equal unbalanced panels. With single head boring machines, boring balanced panels is more efficient. This is doubly true when drilling a single row requires multiple plunges of the head (e.g. 13 spindle machines).
Hardware, most notably drawer box offset, determines which is the best indexing option. For indexing to be a reliable constant, the top and bottom edges (plus 1/2 gap/reveal) of all faces need to be centered on a system hole (system) or at the midpoint between system holes (shifted). Shifted registration is most common (fourth drawing), but is not always the best option. True 32 was big on Zargon slides which work best with shifted registration. While Process 32 (see below) also uses shifted registration, most of their drawer layouts are broken.
As in the drawing, balanced reveal system row start holes can be 32mm (sys) or 48mm (shift) from the top and bottom of the panels. With all the reveal shifted to the top (faces flush to the bottom of the box), the bottom start holes can be 30.5 (sys) or 46.5 (shift) from the bottom of the panels (33,5 and 49.5 from the top, respectively).
Modular Panels
If you want modular boxes, boxes that can be joined in any configuration while maintaining consistent gaps/reveals (as in the drawing above), there are only four possible panel designs. There are two reveal options and two indexing options. All full-overlay modular box/panel heights are a multiple of 32mm (sans feet and counter).For the gap between the faces (door, drawer, etc.) of stacked boxes to be the same as the gap between all other faces, the sum of the box to face reveals (top + bottom) needs to equal the gap between faces (typically 3mm). You can have the faces flush to the bottom of the box (full reveal at the top, e.g. 3/0mm reveals) or split the reveal evenly between the top and bottom of the box (e.g. 1.5/1.5mm reveals).
Placing the full reveal at the top allows the gap between the top drawer/door and countertop, top mounted crown, etc. to be the same as the gap between the drawer/door faces. It also allows everything (applied ends, fillers, etc,) to be flush with the bottom of the box. This is really the only way to make stackable boxes that look and work good in all applications. The drawback is that unbalanced reveals equal unbalanced panels. With single head boring machines, boring balanced panels is more efficient. This is doubly true when drilling a single row requires multiple plunges of the head (e.g. 13 spindle machines).
Hardware, most notably drawer box offset, determines which is the best indexing option. For indexing to be a reliable constant, the top and bottom edges (plus 1/2 gap/reveal) of all faces need to be centered on a system hole (system) or at the midpoint between system holes (shifted). Shifted registration is most common (fourth drawing), but is not always the best option. True 32 was big on Zargon slides which work best with shifted registration. While Process 32 (see below) also uses shifted registration, most of their drawer layouts are broken.
As in the drawing, balanced reveal system row start holes can be 32mm (sys) or 48mm (shift) from the top and bottom of the panels. With all the reveal shifted to the top (faces flush to the bottom of the box), the bottom start holes can be 30.5 (sys) or 46.5 (shift) from the bottom of the panels (33,5 and 49.5 from the top, respectively).
