Cardboard Relay - Uglytech is getting better

A relay constructed from materials found in the home and will hold up to actual daily use.

Dr. Cockroach

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Description
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The 2018 Hackaday Prize

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Description

The goal is to design and construct a relay using materials found in most every home. Cardboard being the main material as well as paper fasteners and assorted cast-offs. The relay will be either SPST or SPDT with a coil voltage of 5 or 6 volts. The finished design must be able to withstand repeated cycles and be useful. This is part of an overall effort to construct as many electronic components from every day materials found in the average household as possible.

Components

1 × Cardboard
1 × Paper fastiners
1 × Magnet / enamal wire
1 × Rubber band
1 × Resistor leads cut to size

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Project Logs

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Ditched the weights
Dr. Cockroach • 04/02/2018 at 09:53 • 6 comments

Got rid of the weights and trying out a simple rubber band. So far it is working very nicely and my wife gets her fishing weights back :-)
First tests
Dr. Cockroach • 03/31/2018 at 01:04 • 2 comments

This the first test run for the relay.

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This is with the contact gap adjustment screw added and the relay connected between IO and the typewriter/printer for a slow test.