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Spiral Lightbulb Sculpture

benglish
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Published on October 2, 2011
This thing was Featured on October 2, 2011

Description

The "lightbulb" is a 5-sided spiral that forms the general shape of a lightbulb. I made this a few years ago as a test piece and I've updated it just for you.

I've included two sizes:

Full size: about 4.8 inches tall
Half size: about 2.4 inches tall (...yep, that's half...check!)

I've also included each STL file in two resolutions.

Instructions

I was able to print this without support on a Rap Man. The only tricky part is the merge at the top. It is fascinating to watch the arms be built up, especially when they are just about to be connected. More recently I printed it with my new UP! printer, but wasn't able to completely disable supports, and it was a real job getting the support structure out. Don't print with supports unless you have to.
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Angie1R on May 1, 2013 said:

As Schorhr said, and perhaps others, these would make some lovely earrings when scaled down... :)

rgoodwin on November 10, 2011 said:

Printed this in one perfect pass with Slic3r (well, nearly perfect) tonight. That's AFTER a week of tweaking SF43, SFACT up and down all over the place and never being able to print anything more than a goopy mess once it hit halfway up. It blew my mind.

MakerGear Mosaic .2mm layer, 1.75 PLA

benglish on November 10, 2011 said:

It looks fabulous. I'd say you have it tuned pretty well.

techknight on October 27, 2011 said:

Just did a full-size one on my height-extended Cupcake. Still only a MK4, so I'll be giving some acetone a shot later on to smooth it out.

botbuilderdotnet on October 19, 2011 said:

I printed a half size on my Cupcake, it is very, very stringy but it was able to complete without failure.

Madox on October 14, 2011 said:

Did you ever figure out what settings to use to print without supports on the Up!?

benglish on October 18, 2011 said:

I have not. I don't think it's possible. I'm going to ask for the option in the next software update.

Crypto on October 8, 2011 said:

Printed mine at 29mm/s 20% fill with ABS and no supports. Came out really well on my MB TOM Mk6. Interesting texture I got due to the filaments being fairly wobbly
&
amp; my need for speed.

Thanks for the design! 8-)

cdaringe on December 21, 2011 said:

i ran at 55mm/s,10% fill (not that fill is relevant on the thin features). looks like crap, a perhaps a tad too hot, but decent! 29 is just crawlin along man!

Landru on October 6, 2011 said:

Makes an excellent door bumper when printed 1/2 scale in PLA. Quite springy.

MrItch on October 3, 2011 said:

Great design!

It printed with no support on my TOM. A few little filament strands here and there, but all in all, I was very impressed.

Thanks!!

benglish on October 2, 2011 said:

Wonderful! I look forward to seeing it printed

Schorhr on October 2, 2011 said:

Wow. Nice shape. I am so going to print this as another earring for my fiance
é :-) Keep up the good work!

benglish on October 2, 2011 said:

Wonderful! I look forward to seeing it printed

dombeef on October 2, 2011 said:

This is one of the many reasons why I want a 3d printer, by any chance would you be selling these?

benglish on October 2, 2011 said:

I'm not selling them, but I imagine you could have one made on Shapeways or some other web-based rapid prototype-er...or find yourself a friend with a RepRap and have him/her build you all the parts for your Rep Rap!

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License

Spiral Lightbulb Sculpture by benglish is licensed under the Attribution - Share Alike - Creative Commons license.

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