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Hey! This thing is still a Work in Progress. Files, instructions, and other stuff might change!

Springamathing 1.0

by Landru, published

Springamathing 1.0 by Landru Oct 10, 2011

Featured Thing!

Description

This is a spring designed for 3d printing.

Watch the video to see it in action!
youtube.com/watch?v=UxwbQSMbEIA

The more you scale the spring, the smaller the spring constant.

Increasing your filament width increases the spring constant.

The spring can be used in tension or compression, but it must be fairly short with comparatively thick filament width to be used in compression.

It can be made extremely flexible and it is very fun to play with.

It's form was discovered by accident, as it was originally auto generated support for the middle of a hollow cylinder.

I'm still perfecting the design but it works quite well in it's current state.

I will be uploading different sizes (and source files shortly) over the next few days.

The spring was prototyped on a Fablicator.
Fablicator.com

Recent Comments

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Could you send me the improved file? I had the same problem.

Printed it out with settings as stated, printed a solid bar basically..went to springymathing and it snapped into five pieces. Wooo. :( Don't know why your model has a large bar of solid space. Going to modify the .sldprt to represent your printed version.

most likely, he has a makerbot or reprap...

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License

GNU - GPL
Springamathing 1.0 by Landru is licensed under the GNU - GPL license.

Give a Shout Out

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Instructions

Print completely hollow, no shells. Just turn fill OFF.

Adjusting your extruded width will alter the spring properties. Also, scaling the spring will alter it's properties.

Have fun.

Comments

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mortinus on Dec 18, 2012 said:

Printed it out with settings as stated, printed a solid bar basically..went to springymathing and it snapped into five pieces. Wooo. :( Don't know why your model has a large bar of solid space. Going to modify the .sldprt to represent your printed version.

Thomas1400 on Jun 4, 2013 said:

Could you send me the improved file? I had the same problem.

cyclone on Nov 8, 2011 said:

Found it in a petri dish and were going to throw it out you say? :) Actually I'm occasionally surprised at how much people pass over my snazzy printed items to play with and dissassemble the scraps.

bergg69 on Oct 31, 2011 said:

Could this be injection molded?

Landru on Oct 31, 2011 said:

I don't see why not. There are no undercuts and it would be easy enough to add some draft.

Might run into a tad bit of trouble with the small wall thickness. Or not. Not my area of expertise.

msmollin on Oct 15, 2011 said:

Nice spring, but I'm more interested in the printer you made it on.... how'd you come across one ;-)

hintss on Dec 20, 2011 said:

most likely, he has a makerbot or reprap...

cymon on Oct 13, 2011 said:

If stretched does it pull to get back to it's shape or is it just flexible? Could it be used as a kinetic energy store in a wind up motor?

Landru on Oct 13, 2011 said:

As long as it is not stretched too far, it acts just like a normal spring, though admittedly has a very low spring constant. I think PLA would work better for energy storage as it has a much higher elastic modulus.

tc_fea on Oct 11, 2011 said:

looks like a lot of fun :)

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