Double helix challenge by chylld

Double helix challenge

chylld

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Published on November 3, 2010

Description

Inspired by Zomboe's Thing8, I created this double-helix ladder which is meant to be printed without support :) How far up the ladder can your printer climb?

I managed to print 9 clean rungs before it all started to go to pieces :) If you play around with Skeinforge cool I reckon more would be possible.

Instructions

Print using your favourite settings, but without support.

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hughsbayou on October 6, 2011 said:

I took the stl download here, put it in AXON, and printed two of them no problem. interesting that although I made no changes the second came out better than the first??!!!

thanks

Grok on March 7, 2011 said:

As usual another great model from Chylld.

Thanks! :-D

Grok on March 8, 2011 said:

Here is a picture of the Helix done with an UP! and a RapMan.

I am still fumbling through Axon/Skeinforge and I expect better results with the RapMan once I gain more knowledge.

Zomboe on November 12, 2010 said:

This turned out to be much more challenging than I expected! I was printing it too fast, causing the tip of the extruder to push around the still hot layers beneath. Also, the layers of strings didn't stick together well for me. I will have to try again at a slower speed, but I uploaded my first attempt for now :).

By the way, I really like your base on this model! The facets look great.

chylld on November 12, 2010 said:

I think the Cool plugin is a necessity to print this successfully, otherwise as you said it just gets too wobbly up the top.

The base is half of a soccer ball, stretched and squashed and with a couple of faces indented :)

vnulk on November 4, 2010 said:

Great design, thanks. Printed with ease. You say you got 9 rungs? Let's see, 96 layers - yup, I got 96 rungs. Does that count?

chylld on November 5, 2010 said:

96 rungs would be pretty epic! Can you upload a photo?

whosawhatsis on November 4, 2010 said:

Haha, no fair! I can print at 80mm/s easy, but my wade's can't extrude accurately enough at the low speeds that it takes to print this. I'll have to try again once I have an extruder built with my planetary gear stepper.

TwoWheeler on November 3, 2010 said:

Hey Zaphod, Can you get a good grade in Biology if you just answer with the number 42? lol

ZaphodBeeblebrox on November 4, 2010 said:

But then the teacher's gonna ask what kind of question fits the answer. I don't think the mice got it right...but I had one too many pan-galactic gargle blasters at the time. I don't really remember it too well.