Pumping Foilboard 

Board.STL

Direct Drive Sherpa Mini per Flying Bear Ghost 5

File 1.3mf

Fig Series Collection

Design M02.1.stl

Overengineered_Shelf_Bracket.3mf

Gear Assembly / Ensamblado de engranes

Ensamblaje de prueba

Bottle Opener for Key-Ring

Bottle opener 003.STL

Bottle Opener Zip-Tied

Bottle opener 002.STL

Bottle Opener Wall Mounted

Bottle opener 001.STL

1x7-Segment Display

1x7__Segments__Display.SLDPRT

Trump Tower.stl

It's the famous Trump Tower in New York City.  Possibly up for sale soon, the Trump Tower is an impressive design and a historic building.  It was the first skyscraper in New York City in which a woman (Barbara Res) was in charge of construction.  She led the project successfully, satisfying both the demands of the owner and the city itself.  

The building is a compromise in design.  The city and the Trump organization were at odds, and eventually it was agreed that the first floor would be a public plaza, and to satisfy foliage concerns, they planted trees on the exterior of the building on the giant steps that make up much of the lower fourth of the building.

And If you've been saving your money you just might be able to buy the real thing if it comes up for sale in the near future.

Engineering Circle Stencil with Straightedge

circle drawing template E4.stl

OP-1 BestCase // Simple Decksaver

Protect your OP-1 in the coolest way possible with a 3D printed case! Better yet, the OP-1 BestCase is both a deck protector and a stand that tilts the OP-1 up to take advantage of the same ergonomic benefits that computer keyboards have been rocking since the 80's.

The model includes round tabs at each corner to improve build plate adhesion. They can be ripped off afterward, or cleanly removed with a X-acto knife.

This case uses a friction fit designed for PLA, so materials that shrink more like ABS may be too tight.

As you're likely aware, PLA is not sun-friendly, so avoid exposing a PLA case to warm environments to prevent warping. If you want extra security, I recommend silicone bands like these (also on eBay) or these.

 

Caterpillar Tractor Logo

CAT-Logo-Stand.stl

Tsugite Cube 3x3 Puzzle (Version A)

A.stl

Simple Sturdy Pulley

pulley-sidea.stl

Simple Compact Geartrain Example

Base.stl

Magnetic Parallelepiped Blocks

This simple shape can be used create numerous complex and interesting 3D tilings and formations.
The parallelepiped is essentially an octahedron with two tetrahedrons attached to opposite faces, so the tiling is based on the octahedron and tetrahedron pattern found in an octet truss.
The holes are sized for 1/8" cylindrical neodymium magnets, 1/32" long. This size of magnet was selected for cost reasons and to minimize the repulsive forces between the magnets at each tip. This size of magnet is not very strong on its own but suffices when there are multiple faces joined together. If you choose to scale the model larger, you will want to use larger magnets.
The six magnets at the two tips are all inserted with the same polarity, the remaining six magnets around the center are inserted with opposite polarity.
It is a good idea to clean the holes out first with a 1/8" drill bit. CA glues works well.
See here for a video on how to assemble the first and second level cuboctohedron: https://youtu.be/Fpc0BToJeA0 
The first level cuboctohedron is made with 12 individual parallelepiped shapes, the second level cuboctohedron is made with 36 individual parallelepiped shapes


Vacuum Cleaner Narrow Part

Vacuum.STL

GD Desktop Caliper Stand - 6in

CaliperStand_6in.step

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


engineering

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Pumping Foilboard

Direct Drive Sherpa Mini per Flying Bear Ghost 5

View 10 new models

Overengineered_Shelf_Bracket.3mf

Gear Assembly / Ensamblado de engranes

Bottle Opener for Key-Ring

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Trump Tower.stl

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Caterpillar Tractor Logo

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Simple Compact Geartrain Example

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