Tag Archives: designmaketeach

On Wonky Geometry

The Faire Play Kickstarter is doing great: 17 days and 8% to go! Go give it some love if you’d be interested in seeing Barbie don some 3D printed medieval armor.

The Athena Makeover Kit’s been out in the wild for twelve days now and there are several photos of prints floating around the internet. I’ve collected two of them here.

First: Bill Owens’ print of the AMK with a cut-down spear to fit his printer’s bed, with tunic hand and machine-sewn by Maddy. Nice job, Bill and Maddy!

Bill has made some suggestions for improving the boots, which I’ll be taking into account when I release the final STL files to backers at the end of the Kickstarter.

owens large

Second, Josh Ajima’s hot-pink Aegis print, shown here with a Percy Jackson figure. Love this one.

percy jackson

Josh also made a modification to the aegis clip that will help it fit other Barbie dolls with inflexible wrists. You can download it from Thingiverse. Creative Commons licensing roolz.

5mm clip

Mr. Ajima blogs at DesignMakeTeach.com, and has all kinds of great resources for STEM educators over there.

If you’ve printed an Athena Makeover Kit, Send it my way with as much info about yourself as you care to reveal, and I’ll get the photo up on the blog toot sweet.

Early printers of the AMK might have noticed some fugliness at the intersection of the shield and medusa. To wit:

aegis fail

I’ll fall on my sword for this oversight; my initial prints handled this intersecting geometry just fine, but other folks using different slicing software have had some problems with this. Here’s what it used to look like in wireframe:

bad geometry

See how the medusa is just kind of jammed into the shield face and creates some intersecting geometry? That’ll print, sure, but it’s a less-than-optimal solution to the problem. We here at Zheng Labs prefer to minimize less-than-optimal solutions.

So! Here’s what it looks like now. I’ve welded the vertices together and now the mesh is watertight as the proverbial frog’s ass.

joined geometry

The final print result is now much improved. Go on over to The Forge and Download the latest and greatest model.

aegis better

Can’t wait to see your prints.