Category Archives: blender

3D Printering: When an STL File is Not Quite Right

STL files are everywhere. When there’s something to 3D print, it’s probably going to be an STL. Which, as long as the model is good just as it is, is no trouble at all. But sooner or later there will be a model that isn’t quite right in some way and suddenly project progress hits a snag.

When models interface with other physical things, those other components may not always be exactly as the designer expected. Being mindful about such potential inconsistencies during the design phase can help prevent problems, but it’s not always avoidable. The reason it’s a problem …read more

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Posted in 3d builder, 3d Printer hacks, 3d printing, blender, cad, design, Hackaday Columns, ideamaker, modeling, openscad, Original Art, prototyping, stl, tinkercad, TWANG | Leave a comment

Decorate Your 3D Prints with Detailed Hydrographic Printing

It’s like the old quip from [Henry Ford]: You can have your 3D prints in any color you want, as long as it’s one. Some strides have been made to bringing more color to your extruded goodies, but for anything beyond a few colors, you’re going to need to look at post-print processing of some sort. For photorealistic 3D prints, you might want to look into a simple hydrographic printing method that can be performed right on a printer.

If some of the prints in the video below look familiar, it’s because we covered the original method when it was …read more

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Posted in blender, computational modeling, dipping, hydrographic printing, PVA, texture mapping | Leave a comment

My DIY BB-8: Problems, Solutions, Lessons Learned

Imagine trying to make a ball-shaped robot that rolls in any direction but with a head that stays on. When I saw the BB-8 droid doing just that in the first Star Wars: The Force Awakens trailer, it was an interesting engineering challenge that I couldn’t resist. All the details for how I made it would fill a book, so here are the highlights: the problems I ran into, how I solved them and what I learned.

The Design Criteria: Portable and Inexpensive

I had two design criteria in mind. The first was to keep it low-cost. Some spend $1000 …read more

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Posted in arduino, Arduino Uno, BB-8, blender, cordless drill motor, drill batteries, fiberglass, h-bridge, h-bridge motor controller, Hackaday Columns, inertial measurement unit, robots hacks, Star Wars The Force Awakens | Leave a comment