LED Spider with Conductive PLA (NO WIRES) multimaterial

This prints as one part, uses 6 LEDs, and no wiring or soldering required!

I designed this to be printed with MMU. It requires a conductive filament to act as the wiring. Using this filament is something that has excited me for a long time but I had never gotten around to designing with it. Even though the conductive filament has severe limitations, the future of designing the circuit directly into the part opens up endless opportunities.

Prior to installing the batteries or LEDs, you must verify that there is no continuity between the positive and negative terminals; installing batteries to a short circuit is extremely dangerous. Also there is no on/off switch, so batteries must be removed when not in use.

BOM:
Black PLA
Proto-pasta Electrically Conductive Composite PLA
2 x AAA Batteries
6 x 5mm Red LED (MFG Part#: SSL-LX5093XRC-TR)

When inserting the LEDs the outside holes are positive.

I have a couple tweaks to the model that will make assembly easier. Once tested, I will upload the new files.

LED cathodes will need to be shortened. They will be pressed into the conductive filament for an interference fit. The hole in the conductive filament it's hard to see, The large one that is visible and it's just a clearance and pull in the non-conductive PLA. Inserting the cathodes into the hole is hard with the current model and the upcoming tweaks will address this.

Also for those who care, the spider is not anatomically correct/accurate.

Print instructions

Conductive PLA must be used for "Spider Conductive"

Recommended print settings:

0.35mm Fast

Changes:

Purging Volumes-
From 2 to 1 = 700
From 1 to 2 = 400

Layers and Perimeters -
Detect Bridging Perimeters (checked)

Spider Body Layers and Perimeters -
Perimeters: 5
Solid Layers, Top: 5, Bottom: 4

Spider Conductive Layers and Perimeters -
Perimeters: 2
Solid Layers, Top: 5, Bottom: 4
External Perimeters First (Checked)

Infill -
Spider Body Fill Density: 10% Cubic

Spider Conductive Fill Density: 100%, Rectilinear

Support Material -
Generate support material (checked)
Contact Z distance: 0.2mm detachable
Don't support bridges (unchecked)

Speed -
First Layer Speed: 40%

Multiple Extruders -
Interface Shells (checked)
Width: 200 mm

Advanced -
Elephant foot compensation: 0.15mm

Filament Settings -
Other Layers Temp: 210

Unloading Speed at Start: 50 mm/s
Unloading Speed: 15 mm/s

Ramming Settings:
Rough Estimates
@0.00(s)=3.0
@0.45(s)=3.5
@1.00(s)=4.5
@1.50(s)=8.0
@2.00(s)=10
@2.50(s)=11