Turbo-charging a manual coffee grinder

Okay, okay, I don't mind the morning ritual of hand grinding coffee beans in a manual, crank grinder, BUT when you've got guests and you're trying to make 4 or more cups of coffee, the quaint hand crank process can become a tedious chore for someone with their pre-coffee anger.

So, I had the idea to use my old drill and a 3D-printed drill adapter to drive it super fast.


Adapter in loco

This was my first time using CAD and a 3D printer in years and was great starter project. It took a couple tries (first started with just 1/4" hex shank, but fattened it up to 3/8". I also learned the importance of perimeters and infill and bumped those up to 8 and 100%.

Fusion 360 and STL files are available on Printables.

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Groundhog Trophy

You can't have a groundhog party without a groundhog trophy. I modelled this in Blender based on the techniques of this tutorial . The one thing I learned was to not subdivide only parts of the mesh. It results in areas with faces with more than four vertices which then cannot be automatically subdivided, so next time I would always subdivide the whole mesh rather than in-parts.

Yofi Blog

Hello and welcome to the Year of Invention Blog. It's my intention to use this blog as a simple place to document projects, what I learn, what tools and processes I used, and what I'd do differently next time. Once started, I hope the blog continues to document my creative projects reasonably indefinitely, using very loose definitions of "invention" and "year."

Making a Knit Fabric Texture Roller

For an upcoming ceramics project I wanted to produce some textured clay that looked believably like fabric. I ran into the following problems Believable texture rollers weren't available for download or purchase. The displacement maps I found didn't look enough like real textiles when used in isolation. Following the tutorial, the vertex count and file sizes became enormous The top and bottom of the roller also became rounded off , making the first layers impossible to print without supports. The full story Couldn't find what I wanted Texture rollers are used to create all sorts of patterns on clays (search "clay rollers") and also for creating scenery for table top games. But despite there being tons of texture rollers online, I couldn't find any good fabric textures available as prints and even what I could find for sale wasn't believably knit. Making rollers with found displacement maps So I found this excellent tutorial and got to work. Finding t...

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