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Motorized Miniature MR-73
As the title says, it's a motorized miniature MR-73 made out of 110lb cardstock paper, colored construction paper and parts from Addison Électronique.
The project is quite complex so don't hold me liable if you bought everything and couldn't complete it. Also, I am not sponsored by or affiliated to Addison Électronique, I am only giving their links since that's where I got most of my parts and I think it would be simpler to get all the necessary parts in one location.
Here's the parts list:
- 9 sheets of 110lb cardstock paper
- Sheets of colored construction paper (including blue, white and other colors if needed)
- Printed reference papers (2 motor cars, 1 trailer car)
- Pair of scissors (although less precise than utility knives, they don't risk tearing the cardstock paper)
- Hot glue and its gun
- Any glue that can stick to paper/cardboard solidly without making a mess (e.g. tacky glue, PVA glue)
- 2 3-6VDC geared motor capped at 100 RPM or similar
- 2 10kΩ ¼W resistor
- 2 100Ω ¼W resistor
- 2 IRLZ44N MOSFETs or similar (unfortunately I couldn't find those at Addison Électronique, so I had to resort to Amazon)
- 1 IDUINO Nano 328P R3 microcontroller board or similar
- 1 battery holder for 4 AA cells with wire or similar capable of providing ≥6V
- 2 1N4001 diodes or similar
- 1 Iduino infrared remote controller with receiver or similar
- 2 meters of wire with low resistance (I personally used 2C 22 AWG CCA speaker wires)
- Soldering iron, solder and anything required to connect the parts and wires together (you can even use terminal blocks or jumper wires if you want to)