MachMachines Musical Instruments is the Oak Park workshop of luthier David Mach Showalter, where custom electric guitars, acoustic guitars, ukuleles, bass guitars, and lap steel guitars are handcrafted with meticulous attention to detail. Operating under the philosophy of “made, not manufactured,” David brings years of expertise to every instrument that passes through his hands, from boutique builds tailored to individual players’ specifications to expert repair work on beloved stringed instruments.

The shop’s custom guitar builds have earned praise from players who appreciate the blend of traditional lutherie techniques and personalized design. Beyond creating instruments from scratch, David offers comprehensive guitar repair services, setups, and restoration work, ensuring each piece receives the careful, hands-on treatment it deserves. His background as a skilled guitar tech shows in both his new builds and repair projects, where precision fretwork and proper setup make the difference between an ordinary instrument and something truly special.

Working by appointment only, MachMachines provides the unhurried, focused attention that quality instrument repair and custom building require, serving musicians throughout the Oak Park area and beyond.