Morse Practice Key

thingiverse

A Morse Code Practice Key Designed for Beginners, Only Four Simple Parts Morse Code Key Instructions: This user-friendly Morse key was designed using OpenScad software, an excellent 3D design application that's free and compatible with Linux and Windows operating systems. OpenScad's source code makes it incredibly easy to learn how to use its capabilities. For those who just want to build the key, you can use the provided STL files. However, keep in mind that you might need to adjust them slightly so they print flat without any overhangs. To assemble the key, you will also need a biro spring, M3 screws and nuts, one M5 bolt, and an additional nut. You should be able to follow the instructions from the provided photos. The rear screw allows for contact clearance adjustment, while the middle screw helps regulate spring tension. For electrical connections, attach thin multi-core wire to the front contact screws. Mount the assembly securely on a suitable wooden base. This practice key is not intended for use with high voltages. Instead, it's ideal for working with a low-voltage battery-powered oscillator circuit and speaker setup. A suitable option could be an astable 555 timer circuit or other similar design running at reduced power levels.