You can 3D print the bricks using opaque filament on almost any desktop 3D printer. The 3D printed parts can be downloaded with the link below. If you don’t have a 3D printer, the files are free to download so can send them to a 3D printing service.
The design is modeled in Autodesk Fusion 360 and designed to print in PLA filament. The parts were 3D printed using the BCN3D Sigma.
You can easily update the size or add features by editing the Fusion360 designs. The sketches are all listed in the timeline, so it's easy to adjust the size to each component.
Depending on your 3D printer, you may need to adjust the slice settings. We tested the enclosure on a BCN3D Sigma. The LCD-frame.stl part will require support materials. The parts are oriented to print "as is".
- Nozzle: 0.3mm
- Extrusion Multiplier: 1.0
- Extrusion Width: 0.3mm
- Layer Height: 0.2mm
- Nozzle Temperature: 225c
- Print Speed: 60mm/s
The LCD-bat.stl will require supports to hold the walls for the slide switch, hinge and the curved arm end section.
Make sure to disable "dense supports" and vertical upper and lower separation layers to make the supports easier to remove.
We added multiple pillar resolutions to support sections of the parts while printing. Use one 8mm pillar to hold the hinge section. The slide switch walls are thinner so we'll need to use a small resolution of 2mm to fit inside. We used 4mm pillars to hold the end of the arm.
To make removal easy, we increased the "horizontal offset" to .7mm.
We can reduce retraction and stress on the extruder and filament while printing supports by connecting the support pillars together. Enable "extra inflation distance" to 1mm to combine all of the pillars into one section.
We'll want the walls of the LCD-bat.stl part to be really strong by making sure gaps between them are solid (no zig zags inside the gaps). We used a .4mm nozzle but had to adjust the nozzle diameter to .3mm with an extrusion width of .3mm to make sure no "zig zag" paths are inside the wall gaps. To enable parimeters between walls you'll need to set the overlap to 50%.
Make sure to always preview tools paths by stepping through each layer/line before printing to insure proper tool paths.