Bookbinding Cover Layout Set — Black PETG, 8 Pieces

Arrange boards for a handmade cover and mark its corners with one set of 3D-printed tools.

Six gap spacers: two each in nominal 5, 6 and 9 mm widths. Place a matching pair on either side of the spine while arranging loose boards, then lift them out by their tabs. Each spacer is approximately 116 mm long overall, with about 95 mm of straight contact length.

Two corner-marking templates: nominal 2 mm and 3 mm perpendicular offsets, approximately 32 mm arms and 3 mm thickness. Place the inside corner against a board corner and mark along the diagonal with a pencil. Two recessed dots identify the 2 mm piece and three dots identify the 3 mm piece. Choose gaps and offsets to suit your board, cover material and binding method.

Eight separate pieces made to order in black PETG. Dimensions are nominal and may vary between prints; physical fit and marking accuracy have not been tested. These are craft layout aids, not calibrated gauges or blade guides. Board, pencil, glue, ruler, cutting mat and blades are not included. Images are illustrative renders of the design.

For light indoor craft use on a flat surface. Clean with mild soap and cool water, then dry. Avoid heat and direct sunlight. Stop using if damaged.

Production and packing: approximately 3–5 working days, excluding courier transit.