cosplay
shapes

Basic shapes

  • Cylinder
  • Cone
  • Truncated cone

  • Dome
  • Sphere

  • Box
  • Pyramid
  • Prism

Complex shapes

  • Angled cylinder
  • Elbow
  • Curved horn

  • Oval dome
  • Pointed dome
  • Capsule

  • Tapered prism

Free. Prints at 100%.

Size

Example: shield boss

Fill in circumference or diameter; the other follows.

A circle with its circumference traced all the way around the outside, its diameter drawn straight across through the middle, and its radius drawn from the middle to the edge.CircumferenceDiameterRadius
Circumference
All the way around, where a tape measure goes.
Diameter
Straight across, through the middle.
Radius
Half the diameter. You won’t need it here.
cm
cm
cm

From the rim straight up to the top. The sides always leave the rim straight up, so a low dome rolls over smoothly and a tall one is egg-shaped.

More gores make a rounder dome with more seams.

Material

EVA foam
mm
Gore length
9.8 cm
Width at the base
5.9 cm
Diameter
14.3 cm

Cut edges butt together and are glued with contact cement.

Gores join edge to edge. Line up the middle notches before gluing towards the tips.

Oval dome

Gore length 9.8 cm · Width at the base 5.9 cm

Flat pattern

  • Cut line
  • Alignment notch
  • Base circumference
  • 1 cm grid

1 piece on 1 A4 page + a scale guide page