EPP Hexagon Template, English Paper Piecing

A 1" hexagon for English paper piecing: a template to trace your papers from, and a window to cut the fabric round them.

Files

• STL: set_default.stl. Plain mesh, any slicer.

• 3MF: epp_hexagon_1in.3mf. Bambu Studio project with my tested settings (PrusaSlicer opens the geometry).

• SCAD: epp_shapes_mw.scad. The parametric source, for any other size.

What is in it

• PAPER, the hexagon at its finished size: 1" along each edge. Trace round it onto card or freezer paper and cut out your papers.

• WINDOW, a frame with a 3/8" seam allowance (SA) round the finished shape. Look through the middle to place a motif exactly where you want it (fussy cutting), then draw round the outside and cut.

How to use it

1. Trace the paper template onto card and cut out as many papers as you need.

2. Lay the window on the fabric, move it until the motif sits where you want it, and draw round the outside edge.

3. Cut on the line, centre a paper on the back, fold the seam allowance over and tack or glue it down.

4. Whip stitch the hexagons together edge to edge.

Need another shape or size? Customise in OpenSCAD

Download the .scad file and open it in OpenSCAD (free). Every option below is in its Customizer panel.

• Shapes: hexagon, half hexagon, jewel (long hexagon), 60° diamond, equilateral triangle, octagon and its matching square

• Size: 1/2" to 3" along an edge, or 10 to 75 mm

• Seam allowance: 1/4", 3/8", 7.5 mm or 1 cm

• Pieces: paper, a solid cutting template and the window, in any combination

• Tips: sharp, or blunt (trimmed) to cut down bulk at the points

Print settings

• Material: PLA, or PETG if it will get knocked about

• Layers: 0.2 mm

• Walls: 4, because the edge is the drawing surface

• Infill: 15% gyroid. The walls make the edge, so more infill only adds weight

• Supports: None, flat as supplied

• Elephant foot compensation: 0

• Wall order and seam: Outer wall first and a scarf seam, so the points stay sharp. The 3MF here already has both

Colours

The photos show white with black lettering. The lettering is a single layer on top, so with an AMS that is one filament swap. No AMS? Map both filaments to one spool and run a fine marker over the raised letters.

The design decisions and the testing here are mine. The OpenSCAD was written with Claude, and every version was rendered and measured before it went up.

If it is useful, a like and a make with a photo really help. I read every comment.

Also on MakerWorld: https://makerworld.com/en/models/3342520