Archive for the ‘STL Files’ Category

The Daily 3D Detail: 3D-printing giant LEGO blocks

Posted by Editor On August - 27 - 2017

3D-printing giant LEGO blocks

As many parents of young children understand, the commodities markets (gold, silver, pork bellies) shamefully neglect to catalog the ongoing rate of one of the world’s most collectible items: LEGO blocks.

3D-printing giant LEGO blocks

Image by Cmglee courtesy of Wikipedia

As LEGO blocks continue to hold their dollar value over time, the prospect of 3D-printing them grows. LEGO blocks are originally made of ABS (acrylonitrile butadiene styrene) and can be easily duplicated by most 3D printers. STL (stereolithography) files for LEGO block downloads have been around for years.

3D-printing giant LEGO blocks

Image of downloadable LEGOs by pokesummit

As the “world’s most powerful brand” LEGO has a strong tradition based on a singly mindful element of their product. It’s virtually impossible to replicate precisely. Even asian knock-off brands of LEGO blocks fail miserably across the board in terms of ease of use and reliability. And forget about having them work together with true LEGOs.

In terms of legal precedent in the LEGO trademark, a number of companies have been sued for infringing upon the LEGO design of their interlocking blocks. LEGO patented their definitive shape of the bricks with their inner tubes in 1958, but the latest European Court of Justice ruling in 2010, stated the eight-peg design of the original Lego brick “merely performs a technical function [and] cannot be registered as a trademark.”

3D-printing giant LEGO blocks

Knock-off companies like Wise Hawk are shameless in their marketing and produce inferior products

So printing one’s own blocks are likely to run into the same quality control issues that plague all other attempts at replicating LEGOs accurately. But printing them at five times the size? That’s a different animal altogether.

3D-printing giant LEGO blocks

3D-printing giant LEGO blocks

Mantis, a two-ton hexapod built by Matt Denton

Meet Matt Denton. Denton’s claim to fame is being the creator of the six-legged two-ton human-scale hexapod called Mantis. His latest contribution to the world is his giant-sized LEGO block creation, a five-times scale model of a LEGO go-cart, model no. 1972. Designed as a LEGO kit in 1985, this buggy cart with dual wheels and working rack-and-pinion steering took 168 hours to make — approximately seven days of printing. The end result weighed 5.1 kilos and cost a little over £100.

In his video series in two parts on the 3D printing of the blocks, Denton explains his tricks of the trade to replicate the LEGO creation in its massive size off a Lulzbot Taz 5 printer. Using extensive brimming to minimize warping at the edges, and foregoing support material in key spots were some of the techniques Denton employed. The video is extensive in construction detail, explaining which parts should be built in sections. No doubt this will not be the first of these mega-size LEGO creations, as anyone with a 3D printer can follow Denton’s lead through his step-by-step instructions.

It’s only a matter of time now until giant LEGO blocks becomes its own sub-Reddit thread. In the meantime, investing in LEGOs still proves to be a viable retirement plan for most parents.

The Daily 3D Detail: Our new favorite STL download

Posted by Editor On August - 26 - 2017

Our new favorite STL download

The Minion chess set is sure to please young players

We love All3DP.com and their extensive lists. Known for ranking printers or presenting DIY projects, All3DP.com has been a favorite website of printrs for years.

Their most recent list is a celebration of 3D-printed chess sets and the selection is impressive. Whether you prefer conventional designs or unique assortments of chess pieces, this list is well-worth a scrolling and bookmark.

Our new favorite STL download

The Lewis chess set, based on the 800-year-old historical set on display at the National Museum of Scotland

The takeaway from this list is it is inevitably incomplete. Chess sets are a popular choice for beginner printrs and modelrs and there is no limit to the imagination that can occupy 16 squares on a chess board. Hopefully exposure of this list will generate even more download options and more follow-up lists to come.

Once you’ve downloaded and printed your set, you may consider traipsing over Chess.com and playing the built-in AI interface. Ranked from levels 1 through 10, the AI is ready to match you at your skill sets and challenge you appropriately. Most can handle levels 3 and 4, whereas grandmasters find themselves stumped by level 8. No one, apparently, is smart enough to beat the computer at level 10.

In addition to gaming, the Chess.com site also offers tips and strategies and a variety of resources for chess enthusiasts.

Our New Favorite STL File Download

Posted by Editor On July - 5 - 2016

Our New Favorite STL File Download

It’s always a challenge for math geeks to see how much of the number π they can recall, so here’s a desktop aid that’s functional besides. Designed by Roman Hegglin as part of Pi day tribute, we’re still not even sure how many digits this pencil holder will help you remember. Advised for printrs using FDM machines to print the solid wall version first, it’s a good test for your home device.

Download it here at Thingiverse: http://www.thingiverse.com/thing:271769.

STL Files Today

Posted by Editor On May - 5 - 2016

All3d.com recently published the list of the 30 best websites and search engines to find free STL files. Thingiverse.com, the website run by Makerbot Industries, is the number one site by number of 3D model offerings, while Instructables.com is the number one site for number of visitors. For the full story and interactive table list, see: https://all3dp.com/best-sites-free-stl-files-3d-printing/

Websites
Thingiverse

Grabcad

Sketchfab

Autodesk 123d

CGTrader

My Mini Factory

Yeggi

Pinshape

YouMagine

Yobi3D

STL Finder

3DExport

Cults

Zortrax Library

New Matter

Rinkak

3DShook

Rascomras

Threeding

Repables

Libre3D

3Dagogo

Shapetizer

The Forge

Redpah

Trinpy

3D Warehouse

STLHive

NASA

Instuctables

Our New Favorite STL Download

Posted by Editor On April - 23 - 2016

Boba Fett Blaster STL download from threeding.com

EE-3 Blaster Rifle

631 mm size total/ 23 parts! The EE-3 Blaster Rifle is the gun wielded by Boba Fett. It operates much like an Elite Rifle and Han Solo’s DL-44 Blaster Pistol in the way it shoots and handles. It fires a three-round burst, allowing for a lot of EE-3 Blaster Pistol damage in only one shot. It takes a second to fire again, though, so you need to be accurate.

The EE-3 carbine rifle was a blaster that was modeled after the E-11 blaster rifle used by Imperial Stormtroopers. The rifle consisted of a small handle attached to a long circular barrel. An alternate version of this model features a modified scope mounting and hand grips that run the length of the barrel.

Download is $7 at threeding.com https://www.threeding.com/3d-printing-models/ee3-blaster-rifle

What is an STL File?

Posted by Editor On April - 19 - 2016

STL FileWikipedia explains:

It’s all about triangles.

Not only are triangles the symbol of control in the semantic world of symbolism, they are the physical equation of control in the geometric realm.

Because triangles do not warp.

A four legged table will wobble if one of the legs is off. However a tripod will stand firmly even at an angle with one leg off and this is the key difference in the structure of physical shapes using numerical evaluated geometric space. What an stereolithography (STL) file does is render everything to triangular coordinates. Perhaps better said can found on Wikipedia:

“STL is a file format native to the stereolithography CAD software created by 3D Systems. STL has several after-the-fact backronyms such as “Standard Triangle Language” and “Standard Tessellation Language”. This file format is supported by many other software packages; it is widely used for rapid prototyping, 3D printing and computer-aided manufacturing. STL files describe only the surface geometry of a three-dimensional object without any representation of color, texture or other common CAD model attributes. The STL format specifies both ASCII and binary representations. Binary files are more common, since they are more compact.

“An STL file describes a raw unstructured triangulated surface by the unit normal and vertices (ordered by the right-hand rule) of the triangles using a three-dimensional Cartesian coordinate system. STL coordinates must be positive numbers, there is no scale information, and the units are arbitrary.”

Thingiverse

Posted by Editor On April - 18 - 2016

Looking for interesting STL files?

The Thingiverse community has uploaded over 528,550 3D models, and that number is growing every day. Check out all the incredible objects people have created, and get inspired to make your own.

Show us what you made: the world wants to see it! 3D modeling and printing is still in its infancy. The more you share your work, the more your designs inspire others, get printed, and do awesome things.

For more visit: http://www.thingiverse.com

TinkerCad

Posted by Editor On April - 18 - 2016

TinkerCAD logo

Tinkercad is a simple, online 3D design and 3D printing app for everyone.

Tinkercad is used by designers, hobbyists, teachers, and kids, to make toys, prototypes, home decor, Minecraft models, jewelry – the list is truly endless!

https://www.tinkercad.com/