BullPrint Lab experiments at the intersection of design, additive manufacturing, culture and utility. Every object starts as a question about geometry and ends as something you can wear out of the house.
MATERIAL TPU / PEBALAYER 0.12 MMEDITION 001 / 100ORIGIN PRINTED IN HOUSE
BUILT DIFFERENT. PRINTED DIFFERENT.STAY BULLISH.FROM THE LAB.PRINT WHAT YOU BELIEVE.BUILT DIFFERENT. PRINTED DIFFERENT.STAY BULLISH.FROM THE LAB.PRINT WHAT YOU BELIEVE.
01 — WHAT IS A BULLPRINT?
NOT A STICKER. NOT A LOGO SLAPPED ON A PRODUCT. THE EXPRESSION IS BUILT INTO THE PRINT.
A BullPrint integrates expression directly into geometry, material, texture and function. The ₿ is not printed on the insert — it is a region of the lattice where the cells close up, stiffen and become a symbol. Remove the graphic and you remove structure.
The identity should feel native to the object. Nothing peels, nothing wears off, and nothing about it reads as decoration bolted onto a part that was finished without it.
Expression engineered into the print.
GEOMETRY
Zoned lattice
MATERIAL
TPU / PEBA
TEXTURE
Layer lines kept
FUNCTION
Drains and breathes
FIG. 02 — EMBEDDED GEOMETRY001 / 100
02 — WHY HONEYCOMB?
GEOMETRY IS THE MATERIAL.
With additive manufacturing, performance isn't determined only by what something is made from. It's also determined by how it's printed. Move the two values below and watch the same material change behaviour.
LIVE LATTICECELL 7.0 MMWALL 1.2 MMHEIGHT 4.9 MM
X 128.4 · Y 41.9 · Z 4.9 MM
DENSITY MAP
ZONED
UNIFORM
FLEX INDEX53 / 100
CELL COUNT430 CELLS
MASS / PAIR62 G
READS ASBALANCED · DAILY
Same material in every configuration above. Only the print changes. Figures are from our own bench tests on Drop 001 geometry — not published material data, and not a performance claim about your feet.
03 — FEATURED
DROP 001
BULLPRINT ₿ EDITION
GOLD TPU / LIMITED EXPERIMENTAL RUN
An experimental insert built to find out how far expression can be pushed into a functional lattice. Printed in small numbered runs, tested in the shoes we actually wear, and revised between batches.
Sold as a design and comfort experiment. We make no medical or therapeutic claims.
TPU / PEBA0.12 MM LAYERWASHABLEVENTED + DRAINED
TEN POINTS ON QUALITY.
Five of them earn the bull — the properties we'd stake the mark on. The other five are why the first five hold.
01A SURFACE THAT DOESN'T HOLD SWEAT
Printed TPU has a closed skin. It doesn't absorb and store moisture the way an open-cell foam footbed does, so it doesn't carry the smell of last week with it.
02AIRFLOW DESIGNED IN, NOT ADDED
The lattice is open from the top surface through to the base, so air moves through the insert instead of around it. The holes are the structure.
03MOISTURE DRAINS INSTEAD OF POOLING
Channels in the base membrane give water a path out and down rather than a flat plane to sit on.
04GENUINELY WASHABLE
Soap, water, air dry, back in the shoe. No fabric top layer to fray and no glue line to soften — there is nothing to come apart in a rinse.
05ONE CONTINUOUS PART
No adhesive, no laminate, no bonded topsheet. Delamination is the usual failure mode for layered insoles and this geometry doesn't have the joint.
06FEEL IS TUNED, NOT GUESSED
90A for softer, 95A for firmer, plus lattice density on top of that. Two dials, same shape, different response.
07ZONED SUPPORT ACROSS ONE PART
Cell size and wall thickness change between heel, arch and forefoot, so a single printed piece behaves differently where it should.
08LOW-PROFILE, FLUSH FIT
Designed to sit over the shoe's own footbed without crowding the upper or lifting your heel out of the collar.
09SERIALIZED AND REPEATABLE
Your profile is a file. The tenth print matches the first, and a replacement is a reprint, not a redesign.
10REPAIRABLE BY REPRINT
Worn out means we run the file again in the material you liked. No mould, no minimum order, no tooling to amortise.
An antimicrobial additive is in testing and is not claimed on Drop 001. Everything above describes how the part is built and how it behaves on our bench — none of it is a health or performance claim.
04 — EXPLODED VIEW
CRACKED OPEN.
One part, three zones, printed continuously. Pull it apart on the build plate and the structure stops looking decorative — every surface is doing a job for the one under it.
BUILD PLATE · 300 × 300 ORIGIN X0 Y0 Z0
STACK 6.7 MM SEPARATION 6.1 MM
VIEW
RENDER
WIREFRAME
01 CONTACT SURFACE1.2 MM
Textured top layer. The ₿ region is where these cells close up and stiffen.
02 ZONED LATTICE CORE4.6 MM
Density varies heel to forefoot. This is where the feel is decided.
03 BASE MEMBRANE0.9 MM
Drainage and ventilation grid. Sits flush against the shoe's own footbed.
Shown as separated layers for clarity. The insert prints as a single continuous part — there is no bonding, no glue line and nothing to delaminate.
05 — SPECIAL ORDERS
CUSTOM BULL BY DESIGN.
Send us your mark and we build it into the lattice the same way we built the ₿ — as closed cells and changed density, not a graphic laid on top. Teams, shops, brands, one-offs and gifts. Approve the sample and you are a BullMaker.
01
SEND THE MARK
Vector if you have it. A clean PNG works — we redraw anything that won't hold as geometry.
02
WE ENGINEER IT IN
The mark becomes closed cells, changed wall thickness and a stiffness zone. It has to survive being walked on.
03
SAMPLE, THEN RUN
One printed sample first. You approve the real object, not a render, before the run starts.
YOUR MARK HERE
CELLS CLOSE TO FORM THE SHAPE VECTOR PREFERRED · SVG / AI / PDF
06 — THE LAB
WELCOME TO THE LAB.
We don't expect every experiment to work. That's why it's called a Lab. We prototype aggressively, test what matters and keep improving the things worth making.
01
IDEA
Usually a joke with a load path. It gets written down only if someone can name the function.
02
DESIGN
CAD, lattice fields, zoned densities. Expression is placed in the geometry here or not at all.
03
PRINT
TPU or PEBA at 0.12 mm. Layer orientation is a design decision, not a slicer default.
04
TEST
Flex cycles, compression set, wash, wear. Worn daily by whoever pushed for it.
05
ITERATE
Version, number, archive. Most prototypes stop here. A few earn the bull.
LAB NOTES
BUILDING IN PUBLIC · UPDATED WEEKLY
MACRO · FOREFOOT
PROTO 00108.02.26
Lattice density test
Forefoot at 6 mm pitch collapsed under load. Closed the cells 18% and kept the heel open.
BULL OFF · V2 CUT
SECTION · HEEL
PROTO 00208.06.26
Heel geometry
Cup wall raised 3 mm. Better hold, but the top edge printed sharp — filleted for 003.
BULL OFF · V3 CUT
TPU FLEX TEST · 12K CYCLES
PROTO 00308.11.26
Material comparison
90A against 95A across the same lattice. The softer shore reads better underfoot, the firmer one holds the arch.
IN TEST · NO VERDICT
PROTO 00408.13.26
Drainage channels
Channels cut too deep. Split at the midfoot on day three. Kept on the shelf as a reference.
BULL OFF · ARCHIVED
07 — THE AI IN THE LAB
BrAhMa
THE AI ON THE BULL.
The intelligence inside the lab. BrAhMa reads the inspection, calls the verdict, prescribes the change in millimetres and generates the next version. It runs the iteration — it does not decide what earns the bull.
Built to ride the iteration. A human still signs the stamp.
VERDICTS BULL ON / BULL OFFOUTPUT GEOMETRY DELTAS IN MMLIMIT NEVER AWARDS THE STAMP
PROTO 004 / TPU95A / V7BULL OFF
Forefoot transition failed inspection. Failure localized at lattice-density boundary.
BrAhMa RECOMMENDS
Increase transition length 12 mm
Move wall thickness 0.8 → 1.2 mm
Preserve ₿ geometry
Generate V8
BrAhMa IS AN AI · A HUMAN SIGNS THE STAMP
08 — THE QUALITY MARK
NOT EVERYTHING EARNS THE BULL.
BullPrint Lab is free to experiment. BEST IN BULL™ isn't. It's our mark for the prints we believe represent the strongest combination of:
DESIGNUTILITYPRINT QUALITYMATERIALEXECUTION
IF IT WEARS THE BULL, WE STAND BEHIND THE PRINT.
OUTER RING · BITCOIN GENESIS BLOCK HASH · 03 JAN 2009 MORE AT BESTINBULL.COM
09 — DROPS
BULLPRINT DROPS
Limited experiments worth releasing into the world. Status is the real status — we don't run countdowns.
LIVE
DROP 001
BULLPRINT ₿ EDITION
GOLD TPU / PEBA EDITION OF 100
The first print we were willing to put a number on.
BUILD YOURS →
IN THE LAB
DROP 002
LATTICE KEYCHAIN
TPU / PEBA RUN SIZE TBC
Offcut geometry from the insert lattice, printed as a bench object.
ON THE BENCH
COMING SOON
DROP 003
STAMP PLATE
STEEL INSERT TOOLING
The physical BEST IN BULL™ die. Not for sale — it is how the mark gets made.
NOTIFY VIA X
ARCHIVED
DROP 000
BENCH PROTOTYPE
PLA / TEST NEVER RELEASED
Where the lattice started. Too stiff, too loud, useful anyway.
IN THE ARCHIVE
10 — EDITORIAL
THE BULLPRINT
Ideas worth leaving a mark.
DESIGN · MANUFACTURING · BITCOIN · OWNERSHIP
THE BULLPRINT #001
SOVEREIGNTY IN DATA
For most of the internet's history, we traded sovereignty for convenience.
We print each insert to a profile, not a shelf size. Six fields is all it takes — the lattice, the last and the arch geometry are derived from what you tell us here.
12 — ABOUT
A SMALL LAB THAT TAKES PRINTING SERIOUSLY.
BullPrint Lab lives in the tension between fun and rigor. The idea might make you smile. The execution should make you look twice. We design in CAD, print in house, wear the prototypes ourselves, and put a number on everything that leaves the bench.
Talk to us about a collaboration, a material, or a print you think should exist.
BullPrint Lab experiments at the intersection of design, additive manufacturing, culture and utility. Every object starts as a question about geometry and ends as something you can wear out of the house.
MATERIAL TPU / PEBALAYER 0.12 MMEDITION 001 / 100ORIGIN PRINTED IN HOUSE
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01 — WHAT IS A BULLPRINT?
NOT A STICKER. NOT A LOGO SLAPPED ON A PRODUCT. THE EXPRESSION IS BUILT INTO THE PRINT.
A BullPrint integrates expression directly into geometry, material, texture and function. The ₿ is not printed on the insert — it is a region of the lattice where the cells close up, stiffen and become a symbol. Remove the graphic and you remove structure.
The identity should feel native to the object. Nothing peels, nothing wears off, and nothing about it reads as decoration bolted onto a part that was finished without it.
Expression engineered into the print.
GEOMETRY
Zoned lattice
MATERIAL
TPU / PEBA
TEXTURE
Layer lines kept
FUNCTION
Drains and breathes
FIG. 02 — EMBEDDED GEOMETRY001 / 100
02 — WHY HONEYCOMB?
GEOMETRY IS THE MATERIAL.
With additive manufacturing, performance isn't determined only by what something is made from. It's also determined by how it's printed. Move the two values below and watch the same material change behaviour.
Same material in every configuration above. Only the print changes. Figures are from our own bench tests on Drop 001 geometry — not published material data, and not a performance claim about your feet.
03 — FEATURED
DROP 001
BULLPRINT ₿ EDITION
GOLD TPU / LIMITED EXPERIMENTAL RUN
An experimental insert built to find out how far expression can be pushed into a functional lattice. Printed in small numbered runs, tested in the shoes we actually wear, and revised between batches.
Sold as a design and comfort experiment. We make no medical or therapeutic claims.
TPU / PEBA0.12 MM LAYERWASHABLEVENTED + DRAINED
TEN POINTS ON QUALITY.
Five of them earn the bull — the properties we'd stake the mark on. The other five are why the first five hold.
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An antimicrobial additive is in testing and is not claimed on Drop 001. Everything above describes how the part is built and how it behaves on our bench — none of it is a health or performance claim.
04 — EXPLODED VIEW
CRACKED OPEN.
One part, three zones, printed continuously. Pull it apart on the build plate and the structure stops looking decorative — every surface is doing a job for the one under it.
BUILD PLATE · 300 × 300 ORIGIN X0 Y0 Z0
STACK 6.7 MM SEPARATION {{ explodeLabel }}
VIEW
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{{ z.name }}{{ z.mm }}
{{ z.copy }}
Shown as separated layers for clarity. The insert prints as a single continuous part — there is no bonding, no glue line and nothing to delaminate.
05 — SPECIAL ORDERS
CUSTOM BULL BY DESIGN.
Send us your mark and we build it into the lattice the same way we built the ₿ — as closed cells and changed density, not a graphic laid on top. Teams, shops, brands, one-offs and gifts. Approve the sample and you are a BullMaker.
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YOUR MARK HERE
CELLS CLOSE TO FORM THE SHAPE VECTOR PREFERRED · SVG / AI / PDF
REQUEST RECEIVED {{ cSummary }}BULLMAKER PENDING
WE'LL COME BACK WITH A SAMPLE PLAN.
Expect a reply from the lab with what the mark needs to become printable geometry, a suggested material, and a price for the run. Approve the sample and the run starts — that is the point you become a BullMaker.
We don't expect every experiment to work. That's why it's called a Lab. We prototype aggressively, test what matters and keep improving the things worth making.
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LAB NOTES
BUILDING IN PUBLIC · UPDATED WEEKLY
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07 — THE AI IN THE LAB
BrAhMa
THE AI ON THE BULL.
The intelligence inside the lab. BrAhMa reads the inspection, calls the verdict, prescribes the change in millimetres and generates the next version. It runs the iteration — it does not decide what earns the bull.
Built to ride the iteration. A human still signs the stamp.
VERDICTS BULL ON / BULL OFFOUTPUT GEOMETRY DELTAS IN MMLIMIT NEVER AWARDS THE STAMP
PROTO 004 / TPU95A / V7BULL OFF
Forefoot transition failed inspection. Failure localized at lattice-density boundary.
BrAhMa RECOMMENDS
Increase transition length 12 mm
Move wall thickness 0.8 → 1.2 mm
Preserve ₿ geometry
Generate V8
BrAhMa IS AN AI · A HUMAN SIGNS THE STAMP
PROTO 005 / TPU95A / V8
BULL ON
GEOMETRY PASSEDPRINT PASSEDINSPECTION PASSED
Transition lengthened, wall at 1.2 mm, ₿ geometry intact. V8 held through 12,000 flex cycles.
→ ASSIGN SERIAL→ GENERATE CERT→ SEND TO BEST IN BULL
BrAhMa IS AN AI · A HUMAN SIGNS THE STAMP
08 — THE QUALITY MARK
NOT EVERYTHING EARNS THE BULL.
BullPrint Lab is free to experiment. BEST IN BULL™ isn't. It's our mark for the prints we believe represent the strongest combination of:
DESIGNUTILITYPRINT QUALITYMATERIALEXECUTION
IF IT WEARS THE BULL, WE STAND BEHIND THE PRINT.
OUTER RING · BITCOIN GENESIS BLOCK HASH · 03 JAN 2009 MORE AT BESTINBULL.COM
09 — DROPS
BULLPRINT DROPS
Limited experiments worth releasing into the world. Status is the real status — we don't run countdowns.
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10 — EDITORIAL
THE BULLPRINT
Ideas worth leaving a mark.
DESIGN · MANUFACTURING · BITCOIN · OWNERSHIP
THE BULLPRINT #001
SOVEREIGNTY IN DATA
For most of the internet's history, we traded sovereignty for convenience.
We print each insert to a profile, not a shelf size. Six fields is all it takes — the lattice, the last and the arch geometry are derived from what you tell us here.
PROFILE LOGGED {{ profileId }}BULLTAKER PENDING
YOUR PRINT IS IN THE QUEUE.
Next: {{ payHandoff }} Once payment clears we cut the geometry to your profile, print it, inspect it, and email you the serial before it ships. The serial is what makes you a BullTaker — it is issued at inspection, not at checkout.
BullPrint Lab lives in the tension between fun and rigor. The idea might make you smile. The execution should make you look twice. We design in CAD, print in house, wear the prototypes ourselves, and put a number on everything that leaves the bench.
Talk to us about a collaboration, a material, or a print you think should exist.
