The Ugears Hurdy-Gurdy combines medieval character with a functional mechanical design. The model includes a body, front and back soundboards, gears, a crank, wheel, neck, tuning pegs, melody and drone strings, and a keyboard. Playing it is straightforward: turn the crank to set the rhythm and press the keys to produce notes. The strings can create different tones, while reduction mechanisms built into the tuning screws help adjust the sound. The drone string can also be disengaged when a cleaner tone is preferred. Mechanical tuning pegs and a planetary mechanism inside the body contribute to smooth operation. The keys use springs for quieter movement and comfortable playing, and the strings can be adjusted for pitch and tuning. The instrument can be used to perform a variety of melodies and fragments or to experiment with your own compositions. The Ugears Hurdy-Gurdy is both an engaging construction project and a playable mechanical instrument designed to bring people of different ages together through music.

The Mechanical Celesta offers two ways to play. You can press the keys to produce notes across an octave, or “program” melodies on a special drum and play them back by turning the handle. Its simple operation makes it accessible even to children and people without musical training. The model consists of 573 parts and takes about 8 hours to assemble at a medium difficulty level. The kit includes plywood parts, cotton cords, wooden balls and metal plates, along with detailed illustrated instructions. Once assembled, you can program familiar melodies or create your own sequences, combining model building with music and mechanical engineering.