Layer by Layer: Trinket Question Block Sound Jewelry #3DThursday #3DPrinting

The three part design includes the main case, top cover and diffusion piece.
Original solids for the case include:
• split ring hoop
• Trinket mounting and port openings
• openings for slide switch, clips to hold, chamfered bottom

The standoffs with cutout cylinders on the back will mount the large piezo to the back of the enclosure.

The opening for the piezo cables is located right underneath the slide switch opening.

To avid having a box or just a square around your neck, the 2D designed box gives it cool dynamic angle when wearing.

Created using the polygon sketch tool, we used a radius of 22 with 6 sides.

Extrude the shape and while still in extrusion mode, rotate around the object so you can get to the modifier handle.

Click on it to active how many degrees the object can slant, which in this case is -70.

To align up with the grid, I’ll rotate it by 30 degrees.

Select the bottom face to create the sketch. While extruding make sure to select the merge option in the small drop down next to the input box.

Next up, we’ll edit one of the corners to add perspective to the block by selecting two vertices a pushing them towards the center. Adjust the origin point by rotating the direction of the arrow.

The question marks were created with the text tool and then snapped to the front face of the cover.

Select the snap tool first, then select the bottom of the question mark, followed by the top face of the cover.

Lid for snap fitting the cover to case are easily adjustable to account for different tolerances, just scale the outer walls to get a tighter or looser fit.

The diffuser part is created using a sketch built from the bottom geometry of the cover using the project feature. Select the bottom of the lid, accept and move the sketch below the cover.
Select the middle sketch and extrude to .5mm. This is just enough to evenly diffuse the light around the enclosure. If the light isn’t even, move the LEDs around the enclosure until the light diffusion is even.
Files for the model can be found on our 123D project pages. The read the full guide on:

Every Thursday is #3dthursday here at Adafruit! The DIY 3D printing community has passion and dedication for making solid objects from digital models. Recently, we have noticed electronics projects integrated with 3D printed enclosures, brackets, and sculptures, so each Thursday we celebrate and highlight these bold pioneers!

Have you considered building a 3D project around an Arduino or other microcontroller? How about printing a bracket to mount your Raspberry Pi to the back of your HD monitor? And don’t forget the countless LED projects that are possible when you are modeling your projects in 3D!

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