Polypanels // Square

square-open.stl

Polypanels // Triangle

triangle-open.stl

Golden Rhombohedra 

Display only do not print.stl

Brain Breaker Blocks

If you’re bored of Lego, this 3D printed self-interlocking construction block will break your brain. It takes minutes to print, months to figure out!

See here for video for demonstrates of the concepts outlined below: https://youtu.be/j10wzy0qGOg 

Officially known as an “SL Block,” this octocube shape is part of a family of “topologically interlocking assemblies,” that is, shapes that hold together without the use of connectors or adhesives to form self-interlocking structures. Self-interlocking structures have interesting architectural and engineering applications.

A ends of a single “SL” block resemble an “S” and an “L.”. In assembly, SL blocks always occur in pairs, called a “Conjugate Pair.” In the pictures and video, conjugate pairs are shown with one white and one black piece.

Conjugate pairs lock together in six different ways, called “engagements,” to form “SL Strands.” Each type of engagement adds a unique translation or rotation to the SL Strand. The six types of engagements are denoted as “h,” “t,” “s,” “d,” “a” and “y.”

Using this system, the SL strands can be represented as strings consisting of six letters that stand for
the six types of engagements.


The first example in the video is an “h4” SL Strand. “h” engagements are straight with no rotations or translations, so the strand is straight.

The next example is an “a4” SL Strand. “a” engagements create a 90 degree rotation but no translations, so the “a4” strand makes a closed, cube-shaped structure.

The final examples in the videos show more complicated “(as2)4” and “(dth)4” strands. These modules can then be connected to form larger and increasingly complex self-interlocking structures.

Is your brain broken yet? Interested in learning more? Start here:
https://archive.bridgesmathart.org/2018/bridges2018-107.pdf


Updated Dewalt Mini Tough Box, Packout, Stackable, Print in Place, Hinge, Lid Milwaukee

Dewalt Bottom.stl

Dual-Extrusion Traffic Cone [2 PCS]

DE Traffic Cone [FULL].stl

Kawai Tsugite (3-Way Joint)

This novel Japanese joint is able to connect in three different orientations, creating both right angles, and straight connections. It was originally a woodworking joint, but I've designed a printable version so you can easily print and appreciate the beauty of this clever invention!

Print in default orientation with standard settings. No supports required!

mini bucket

bucket.stl

DaveMakes Modular Building Set – Bed and Furniture

Puffy Couch - Two Armrests.stl

BULLDOZER- TRACKS SUPPORTLESS - EASY ASSEMBLY WITH CLIPS

Bulldozer_body (1).stl

Compact Bit Box (pocket size driver bit storage)

Insert - Small.stl

DaveMakes Modular Building Set – Hanging Lights

Suspension Grid 8x8.stl

Polypanels // PLAY Triangle

play-triangle.stl

Simple Sturdy Pulley

pulley-sidea.stl

PowerToolHanger_HuskyCabinetInsert

PowerToolHanger_HuskyCabinetInsert_X70_Y65_Z150.stl

DaveMakes Modular Building Set – Wall Shelves

Recessed Shelf Pattern 2.stl

DaveMakes Modular Building Set – Windows and Doors

Full Curtains Closed.stl

Polypanels // PLAY Wheel

play-wheel.stl

Polypanels // PLAY Square

play-square.stl

Polypanels // Triangle Mesh Fabric

triangle-fabric.stl

construction

Most Downloaded of All Time

Categories

Downloads

Trending

Popular

Paid

Videos

New Uploads

Downloads

Trending

Popular

Paid

Videos

New Uploads

Downloads

Polypanels // Square

Polypanels // Triangle

Golden Rhombohedra

Brain Breaker Blocks

Updated Dewalt Mini Tough Box, Packout, Stackable, Print in Place, Hinge, Lid Milwaukee

Dual-Extrusion Traffic Cone [2 PCS]

Kawai Tsugite (3-Way Joint)

mini bucket

DaveMakes Modular Building Set – Bed and Furniture

BULLDOZER- TRACKS SUPPORTLESS - EASY ASSEMBLY WITH CLIPS

Compact Bit Box (pocket size driver bit storage)

DaveMakes Modular Building Set – Hanging Lights

Polypanels // PLAY Triangle

Simple Sturdy Pulley

PowerToolHanger_HuskyCabinetInsert

DaveMakes Modular Building Set – Wall Shelves

DaveMakes Modular Building Set – Windows and Doors

Polypanels // PLAY Wheel

Polypanels // PLAY Square

Polypanels // Triangle Mesh Fabric