Double Spiral Ballpoint Pen Body

by benbrandt22, published

Double Spiral Ballpoint Pen Body by benbrandt22 Feb 16, 2017

Design Tools

Fusion 360

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This pen body was designed to add an interesting geometric flair to an otherwise ordinary pen.

The part was designed to fit the ink refill from the Bic Cristal pens, which can be found here: http://amzn.to/2lndAQm

Watch the design and build process here:

Print Settings


Dremel Idea Builder










I printed mine using Simplify3D software and my Dremel Idea Builder, using PLA filament and printing in High detail with 100% infill (solid).

The software will likely try to add support material on the inside where the ink will go. This would be too hard to remove and you can get by without it. Instead, I used manually-added supports on each end, and along the outside to keep the pen from rolling as it was being printed.

How I Designed This

The pen was designed in Fusion 360. First the ink refill was measured and modeled, and then the pen body was modeled around it. Before making the larger model, I created a few "pen tip" test pieces with different hole diameters to find the best size hole for the ink to fit in.

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Would it be difficult to make a cap for this (: ?

nice model, printed with point up, 0 supports, 10mm brim. slight post process sanding to clean up the ball.

could you share the fusion file? it would be sweet to dual print the spirals :D

Oooooh that would be cool... do it on video perhaps? I'm away from the computer but maybe later.

Can't wait to try this out.