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Octopus Bun Cover

by IWorkInPixels Oct 28, 2011
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Printed a small one to test it out. Am printing a larger one now. Printing on a XYZPrinting DaVinci Mini which only has a 6x6x6 non-heated bed, but handled the project with no issues.

For those looking for a way to bend the arms, I've found a couple of methods.

  1. Using a round metal object and a heat gun (or a hairdryer in a pinch). The big issue with this is that the arms get very thin at the ends and can melt easily. The heat gun does not allow you to direct the heat at just the meaty parts that need to be heated. In other words, the heat gun is a very broad approach to the heat problem that results in everything melting and bending.

  2. Rounded object and hot water. This is a more gentle approach but I found that it took me longer and didn’t leave the finished piece as glossy as the heat gun method. Again, it’s hard to direct the heat where you want it.

  3. Use a rounded object and a butane torch. Using the torch, start far away from the tentacles while aiming at the meatier parts and slowly move up and down the tentacle while gradually getting closer until the tentacle starts to droop. Stop applying heat and gently position the tentacle along the curve of the round object and blow on it to cool. By following this technique, you can get nice curved arms without risking the end of the tentacle. Downside is that it is much slower than the other two techniques, and if you get too close or heat for too long, the piece will begin to discolor. This technique also melds together the outer edges of the layers, and gives the pieces a more smooth and glossy finish than the other techniques.

In the end I combined the first and third technique. I used a kitchen ladle with a very round scoop for my round object. I propped it up so the bottom of the scoop was facing up with the handle in the spout of a tea kettle and propped up a hair dryer blowing at high heat into bowl of the scoop from beneath. When the ladle was hot to the touch I held my octopus on top of the ladle and began to use the butane torch to soften the arms. When I was done I turned off the hair dryer and let the piece rest for a couple of minutes before blowing it down with cool air from the blow dryer. My wife is very pleased with the final product.

it looks great and i would like to make one too. only thing i do not like is that it is rather low poly. That is a shame. is it possible to post it with nicer curves? But for the rest. great design

I just printed one of these with a nice thick brim, on a printrbot simple metal, and it came out great. I left the brim inside the tentacles to close them off, making them less likely to tangle my wife's hair. I bent the opposing tentacles for the pin with a hair dryer.

Comments deleted.

Print with PLA 1.75
Print with brim or raft
very beautiful part!

Derp! Yeah, looks like the file got deleted somehow... The file is just the Bucket O' Octopi file, so I will re-upload that one post haste!

Ok... the download is repaired! You may download, print, and heat-gun!

not sure if it is just me, but the STL file wont download and takes me to an error page?

i would LOVE to print this if theres any way it can be fixed!


i just made one and can confirm that it's really really cool. Please do make the loops happen soon. Mine turned out a bit weak and would benefit from both the loopy tentacles and really, from thickening all of the tentacles about 2-3mm for sturdiness. It'd add a few more layers and a bit more time to the printing, but it would ensure that when removing it from the (necessary in my case) raft, the tentacles don't get damaged. Nice work!