Thingiverse
ProtoPoi by fughilli
by Thingiverse
Last crawled date: 5 years, 3 months ago
ProtoPoi are my first attempt at making 3D-printed poi. To reduce total print time, the poi are constructed from a combination of 3D-printed parts and flexible tubing. This reduces their overall weight, and also makes them fairly squishy (so smacking yourself in the face with them is not as unpleasant!). V2, featured here, uses small pieces of galvanized steel wire as pins to retain the tubing within the 3D-printed endcaps. This ensures that even with repeated abuse, the poi will not fall apart.
You can print and assemble just the poi, and weight them with 1/4"-20 nuts, like I have shown, or you can print and assemble the light modules and make them glow in the dark! The light modules can be assembled from parts obtained from SparkFun and DigiKey, and the code is open-source on GitHub: https://github.com/fughilli/ProtoPoiController
The Fritzing screenshot shows how to hook up the electronics, but you'll have to work delicately to make it all fit on the proto board. See the photo of the wiring to see how I did it.
BOM, plain ProtoPoi:Polyethylene Tubing (107mm per segment, 24 segments)1/4"-20 Steel Nuts (I found that 4 per poi feels weighty enough)550 Parachute Cord
BOM, light modules:850mAh LiPo (x2)Tricolor 5mm LED, CC (x8)Pushbutton (x2)Slide switch (x2)L293D (x2)MSP430G2553IN20 (x2)JST 2P Female Connector (x2)Snappable Protoboard (x1)
(snap out two pieces of 27*4 holes)0.1uF Ceramic Capacitor (x2)68 Ohm Resistor (x6)47 kOhm Resistor (x2)22 kOhm Resistor (x2)M3-12mm Machine Screws (x8)
You can print and assemble just the poi, and weight them with 1/4"-20 nuts, like I have shown, or you can print and assemble the light modules and make them glow in the dark! The light modules can be assembled from parts obtained from SparkFun and DigiKey, and the code is open-source on GitHub: https://github.com/fughilli/ProtoPoiController
The Fritzing screenshot shows how to hook up the electronics, but you'll have to work delicately to make it all fit on the proto board. See the photo of the wiring to see how I did it.
BOM, plain ProtoPoi:Polyethylene Tubing (107mm per segment, 24 segments)1/4"-20 Steel Nuts (I found that 4 per poi feels weighty enough)550 Parachute Cord
BOM, light modules:850mAh LiPo (x2)Tricolor 5mm LED, CC (x8)Pushbutton (x2)Slide switch (x2)L293D (x2)MSP430G2553IN20 (x2)JST 2P Female Connector (x2)Snappable Protoboard (x1)
(snap out two pieces of 27*4 holes)0.1uF Ceramic Capacitor (x2)68 Ohm Resistor (x6)47 kOhm Resistor (x2)22 kOhm Resistor (x2)M3-12mm Machine Screws (x8)