How to sew a Hyperbolic Blanket (2021)

21 hours ago

Helaman Ferguson invented a hyperbolic blanket design, originally as a poncho.
Instructions provided for making a hyperbolic blanket using fleece pentagons.
Template for pentagon requires printing on two sheets and taping together.
Transfer template to cardboard for durability.
Cut and trace pentagons onto fleece using tailor’s chalk.
Sew 51 pentagons (25 of one color, 26 of another) into pairs and groups.
Key sewing tip: align seams carefully where four pentagons meet.
Final assembly involves sewing groups around a central pentagon.
Ferguson’s design improves curvature distribution compared to older methods.
Uses concave-sided pentagons with 90° angles and stretchy fleece for even curvature.

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