It takes more to create fine instruments than superior materials and components. It is the matching and seamless integration of these parts from top to bottom that distinguishes the great from the good. For the player, the moment begins when string crosses the nut to emerge over the fingerboard. Any imperfections in the nut will influence the entire playing experience.
The Zero Glide replacement nut system developed by Wayne Rogers, founder of GoldTone, is a brilliant piece of musical and engineering thinking which enhances any fretted instrument: banjo, guitar, mandolin, anything!
See the full Zero Glide story below, or go straight to bottom of page to see the kits available to buy right now!
Wayne Rogers & Mike Johnson of Gold Tone explain the Zero Glide Replacement Nut System.
The functions of the nut.
As the gateway to the fingerboard, the nut must hold each string securely, so that the point of vibration begins precisely at the forward edge of the nut, yet must allow any easy glide of the string for optimal tuning. In addition the break of the string slot must be perfectly positioned. If it is too high, the string action will be raised leading to inaccurate vibrational length when the string is fretted: too low introduces string buzz. To complicate matters, the slots are vulnerable to wear, particularly those that support wound strings. As the string is tuned the winding acts a mini-saw, slowly grinding down the slot. GoldTone estimate that nut adjustment accounts for about 75% of the instruments that are brought to them for adjustment.
Most luthiers know the benefit of a zero fret. They work well, but have long been associated with entry level instruments and they are rather unsightly. But the Zero Glide patent pending solution is to create a nut which integrates a fret within the nut. The results are phenomenal! Now the break angle at the fulcrum contact point is decreased from a standard nut thickness of 3/16" to less than 1/64", reducing contact an astounding 93%!! The zero fret provides optimal string height, and reduces the downward pressure at the nut slot, reducing string friction. Thus, the string is freely gliding when stretched.
The Zero Glide Nut System features a unique nickel silver fret harder than a conventional fret to prevent wear from the strings. The fret tang also has no ‘barbs’ that allows for a flush installation with no alteration to the fingerboard.