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Fred Bartels

Maker Classroom Projects  - 
 
Playing around with print-in-place ball joints. These print quickly and are sticky enough to hold a position. The files are on Thingiverse: http://www.thingiverse.com/thing:952310
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Fred Bartels

General Discussion  - 
 
2000 members (whatever that means on G+) is some sort of milestone. Perhaps everyone could use this occasion to start sharing more about their projects, spaces, plans, questions, etc.!
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Fred Bartels

General Discussion  - 
 
Proof-of-concept of a print-in-place ball & socket joint. It works beautifully! On Thingiverse here: http://www.thingiverse.com/thing:943899
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Robert Ritchie's profile photoFred Bartels's profile photo
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These will work well for places you need articulation but don't want the ball to be able to pull out. The slotted ball joints that use pressure from the outer wall to hold the ball are probably better for situations where you want friction to hold the joint position. BTW, I discovered last night that a drill hole is not needed to remove the support used to print the ball. With the sizes I'm using (1/8" diameter support) the support snaps with some gentle rotational force. :) 
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Fred Bartels

Maker Classroom Projects  - 
 
Asymmetrical tensile tetras. Another summery project. Hubs and construction details are on Thingiverse. http://www.thingiverse.com/thing:939971
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Fred Bartels

Maker Classroom Projects  - 
 
Some hubs for making regular tetrahedral structures using dowels. The hub holes can be easily resized in SketchUp for different diameter dowels. Files are located on Thingiverse here: http://www.thingiverse.com/thing:916646
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Fred Bartels

General Discussion  - 
 
Looking forward to seeing the maker movement's creative and fun contributions to the 2016 campaign... on all sides.

Here's mine. :) http://www.thingiverse.com/Fredbartels/collections/bernie-things
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Timonious Downing

Running a Makerspace  - 
 
Please check out my blog "Making a Makerspace on a Mini Budget".
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Timonious Downing's profile photoJennifer Grove (Dark Moon)'s profile photoMelanie Gayle's profile photoHaixiao Sun's profile photo
5 comments
 
Oh.
Thanks for that clarification.
I hope my perspective is counted. It's completely valid.
Have a good one.
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Fred Bartels

General Discussion  - 
 
Steel is amazing stuff. To be able to 3D print with it...wow.
The oldest of Amsterdam's approximately 1,280 bridges in use dates back to 1648. The city is famous for its beautiful canals and waterways, and Dutch engineer
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2 comments
 
I wonder what that bridge would be like if they could synthesize spider-web filament instead of steel.
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About this community

Building a community for Educators and Makers working to inspire young people to make projects in art, craft, engineering, green design, math, music, science, technology, and more

Carlos Loff

General Discussion  - 
 
DIGITAL LISBON - Biggest Virtual City - Opensim/Hypergid
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JOIN, HELP & RUN - http://www.gofundme.com/digital-lisbon

Lisbon is a Means to and End - Play, Learn, Trade, Meet & Live
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Fred Bartels

Maker Classroom Projects  - 
 
Symmetrical Tensile Tetras

The elegance and simplicity of symmetry. 

Files and construction information are on Thingiverse here: http://www.thingiverse.com/thing:942429
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Fred Bartels

General Discussion  - 
 
Anyone have experience using eyelets with elastic fabric like spandex?
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Jennifer Grove (Dark Moon)'s profile photoFred Bartels's profile photo
7 comments
 
Thanks for the ideas Temujin! I'll take a look at the neoprene fabric. 
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Fred Bartels

Maker Classroom Projects  - 
 
Tensile Tetras. Fun inexpensive summer project involving lots of different materials and skills. Files and instructions are on Thingiverse here: http://www.thingiverse.com/thing:923670
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Fred Bartels

Maker Classroom Projects  - 
 
Used TinToy http://www.thingiverse.com/thing:719762 to make a large network of tetrahedrons. It's very light and quite strong. We now have it hanging in our living room. A version in your Makerspace could be a great way to promote thinking about networks and triangulated structures. 
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Fred Bartels

General Discussion  - 
 
Math and algorithms and computers combined with creativity create magic.
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Gorgeous!!!
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Bob Gilbertson

General Discussion  - 
 
I am looking for some vendors for LittleBits besides the LittleBits company and radio shack.  I also need to find a quote for the Popular Science Kit.  If any one can help me out, I would appreciate it!
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Fred Bartels

Maker Classroom Projects  - 
 
A fun project that involves some careful planning, measuring, and execution. The bulbs are available on Thingiverse here: http://www.thingiverse.com/thing:561399 Just resize them via SketchUp for the size of the holes in the plywood. All the bulb bases are the same diameter so if you resize one in SketchUp they will all be resized. The LED strip is from AdaFruit. The effect is magical. :)
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