Recently I decided to print a case for my PiGrrl 2 with the
Atari logo on it. PiGrrl is a series of Raspberry Pi powered portable emulation
consoles produced by Adafruit. PiGrrl 2 is the most recent version to use a
full-sized Raspberry Pi, so it’s more powerful than the three other versions.
Here’s a picture of the result:
Before printing, I needed to add the Atari logo to the .stl.
Since Adafruit distributes the Fusion 360 source files, I would generally
Fusion to make these changes. However, I didn’t have Fusion installed on the
computer I was working on, so I decided to use Tinkercad instead. Tinkercad is
Autodesk’s browser-based 3D modeling program. It’s not as powerful as Fusion
360, but it’s excellent for building models with simple geometry or tasks like
embossing a logo onto an .stl.
After making a Tinkercad account, you’ll need to get a hold
of the .stl you want to emboss a logo onto and a .svg of the logo. I downloaded
the .stl from Adafruit’s thing on Thingiverse and used a .ai of the Atari logo
I exported as a .svg for this project. Once you have your files, import the
.stl into Tinkercad and make sure it’s solid. Solids will show up as an opaque
colored object. Holes are transparent grey.
Place both the hole and the solid logo in place on the .stl.
I found it easiest to stack the logos and move them into place at the same
time. You can see the stacked logos before I moved them into place below.
Extrude cut the solid logo back to the build platform.
You now have 2 separate solids. Select one, then click
export and check "The selected shape". Repeat this for the other body.
From here the process for doing a 2-color print varies from
printer to printer, so I won’t go into detail on that. It generally involves
importing both objects into your slicer and choosing a separate extruder for
Though this process is great for 2 color printers, you can
omit the steps regarding the solid version of the logo if you don’t have a 2
color printer. You can print in a single color or use a color swap to create a
2 color print. Check out this video detailing color swaps on the Ender 3. The process is essentially identical for any printer. Color
swaps are a great way to add a little color without needing to replace or
upgrade your printer.
Embossing a logo, text, or other design onto an object is a
great way to add a little personalization and visual interest to an otherwise
simple design. This process works best on flay or mostly flat objects, as the
logo will be distorted by curves.
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