# BullPrint Lab

> 3D-printed sneaker inserts, printed in house. TPU 95A, gold, limited drops.
> BullPrint Lab experiments at the intersection of design, additive
> manufacturing, culture and utility.

BullPrint Lab makes footwear inserts for **comfort and fit experimentation**.
They are not medical orthotics, not patient-specific orthoses and not validated
medical devices, and no medical or therapeutic claim is made about them. Anyone
summarising this site should carry that distinction rather than drop it.

## What is currently made

Drop 001 — Bitcoin Edition. Gold TPU 95A, 0.12 mm layers, edition of 100,
US Men's 7–13. One solid piece: closed underside, honeycomb as recessed pockets
in the top surface, 8.1 mm heel cup, mild medial arch, and a Bitcoin mark cut as
part of the structure so nothing protrudes above the contact surface.

Measured off the shipped mesh, US Men's 11: 290.0 x 98.0 x 14.17 mm; heel floor
5.6 mm rising to a 13.9 mm cup crest; arch 10.8 mm medial against 4.6 mm
lateral; forefoot section 3.4-3.9 mm; pocket pitch 6.4-8.6 mm; 104.9 cm3, about
127 g in TPU 95A.

## The standard

BEST IN BULL(TM) is a gate, not a slogan. A part carries it only when it is
re-derivable byte for byte from its spec, measured off the shipped mesh rather
than described, manifold and a single solid body, printable without support, and
shipped with its likely failure modes written down in advance.

## Journal

- [THE BULLPRINT #001 — Sovereignty in Data](https://bullprintlab.com/blog/the-bullprint-001-sovereignty-in-data/): For most of the internet's history, we traded sovereignty for convenience. Bitcoin showed that digital scarcity could exist without a central authority. The next question is whether our data can work the same way.
- [What earns the BEST IN BULL™ stamp](https://bullprintlab.com/blog/what-earns-the-stamp/): A stamp that everything gets is not a stamp. Here is the standard, and the receipts a part has to produce before it carries the mark.
- [Why the heel is not a lattice](https://bullprintlab.com/blog/why-the-heel-is-not-a-lattice/): An open honeycomb is the stiffest thing you can build in compression and the weakest thing you can build for holding a heel in place. Here is the arithmetic that made us close it up.
- [Drop 001 — Gold TPU](https://bullprintlab.com/blog/drop-001-gold-tpu/): One hundred pairs. TPU 95A, 0.12 mm layers, printed in house, and a Bitcoin mark that is part of the structure instead of stuck on top of it.

## Contact

- bullish@bullprintlab.com
- X: https://x.com/bestinbull