Dresden Plate Ruler & Wedge Template, Quilting
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20-wedge Dresden Plate ruler plus 4 in blade template for quilting. Ready-to-print STL, 3MF and OpenSCAD source.
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A Dresden plate wedge ruler and a matching blade template. Cut strips, cut wedges, sew a plate.
Files
STL: set_default.stl. Plain mesh, any slicer.
3MF: dresden_20_wedge_ruler_and_4in_blade.3mf. Bambu Studio project with my tested settings (PrusaSlicer opens the geometry).
SCAD: dresden_wedge_mw.scad. The parametric source, for any other size.
What is in it
RULER, 20 wedges (18°). Lines every 1/2" and numbers every inch, 1 to 8. The lines mark cut length, measured from the narrow end, which is the width of the strip you cut from.
BLADE, a template for one 4" wedge with a 1/4" seam allowance included, so it measures 4 1/2" top to bottom. The arrow shows the straight grain.
20 wedges at 18° make a full circle, the most common Dresden plate.
How to use the ruler
Cut a strip the width of your blade plus the seam allowance: 4 1/2" for a 4" blade.
Lay the ruler on the strip with the narrow end on one edge and the 4 1/2 line (the unnumbered line between 4 and 5) on the other.
Cut both sides. Flip the ruler end to end for the next wedge, so nothing is wasted.
Sew the wedges together in pairs, then pairs of pairs, until the plate is round.
How to use the blade
Draw round it on fabric or card and cut. Handy for fussy cutting a motif in the middle of each blade, or for making a card template.
Need another size? Customise in OpenSCAD
Download the .scad file and open it in OpenSCAD (free). Every option below is in its Customizer panel.
Wedges: 12 (30°), 16 (22.5°), 18 (20°), 20 (18°) or 24 (15°)
Blade length: 1" to 7" (25 to 180 mm), plus the size of the centre opening
Tip: flat, pointed (fold and seam) or rounded
Seam allowance: none, 1/4" or 7.5 mm
Ruler length: 3" to 9", inches or metric
Print settings
Material: PLA, or PETG if it will get knocked about
Layers: 0.2 mm
Walls: 4, because the edge is the cutting 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 edge stays clean and true. The 3MF here already has both
Colours
The photos show white with black markings. The markings are 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 lines.
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/3342490