Parts
Pick your voicing below and you'll get the complete parts list for that build — the shared body and hardware plus the electronics that voicing needs — so you can order everything in one pass. I only list voicings I've fully speced; the ones still in the lab aren't here yet.
Items marked Specific mean that exact part. Flexible items list a real alternative and the tradeoff.
Body Construction
PET-CF Filament
SpecificQuantity: 2 one-kilogram spools
Two kilograms of filament are required for a complete body. PET-CF is preferred for ease of use, dimensional stability, and material strength.
G/Flex 650 Epoxy
SpecificQuantity: 1 kit
A flexible marine-grade epoxy that handles vibration and stress without cracking. One kit has enough epoxy for multiple Relay bodies.
Guitar Hardware
Guitar Neck
FlexibleQuantity: 1
Necks with identical listed specs can vary meaningfully. Budget time for fitting and check compatibility before ordering.
Fixed Hardtail Bridge
SpecificQuantity: 1
The Relay body is designed around a fixed string-through hardtail bridge. Tremolo bridges are not compatible with the current body.
Neck Mounting Ferrules
SpecificQuantity: 1 set
These press into the back of the body and receive the neck bolts. Install them after confirming neck alignment because they are permanent.
String Ferrule Plate
FlexibleQuantity: 1
The string ferrules anchor the strings through the back of the body.
Locking Tuners
FlexibleQuantity: 1 six-in-line set
Locking tuners make restringing faster and improve tuning stability while the setup is being dialed in.
Strap Buttons
FlexibleQuantity: 1 pair
Relay uses standard strap button mounting locations.
Guitar Strings, 9-42
FlexibleQuantity: 3 packs
Three packs are recommended because setup work can sacrifice a string or two.
Backplate Screws
FlexibleQuantity: 1 set
These secure the rear cavity cover after electronics installation.
Truss Rod Cover Screws
FlexibleQuantity: 1 set
These secure the truss rod cover on the headstock.
Knobs
FlexibleQuantity: 1 set
Knob fit depends on the pots selected for the model.
Electronics
Neck and Middle Lipsticks, GFS KPS41 Pro Tube
SpecificQuantity: 2
The lipstick subsystem in Relay Reef and Relay Reef Plus: one in the neck, one in the middle. Each is around 6K. Order two; the price shown is for one.
Bridge Humbucker, GFS KPH65 Vintage 59 Alnico V
SpecificQuantity: 1
Moderate-output bridge humbucker for Relay Lipstick, Relay Reef, and Relay Reef Plus. In Lipstick, high-output pickups overwhelm the lipstick layer. In the Reef models, it is the heavier voice family and should contrast clearly with the lipsticks; a tamer humbucker narrows that contrast.
Volume Pots, 1 MΩ Linear Taper (B1M)
SpecificQuantity: 2
One volume for the lipstick side and one for the humbucker. Both must be 1 MΩ linear. Audio-taper pots give an uneven sweep with a sudden drop near the top in this circuit, and lower values dull the lipsticks. Order two; the price shown is for one.
Selector Switch, 3-way Blade (two-pole)
SpecificQuantity: 1
Selects the lipstick side only: neck lipstick, both lipsticks, or middle lipstick. Relay Reef and Relay Reef Plus use both poles so that the two lipstick hots never share a contact. The humbucker does not go through this switch.
Output Jack
FlexibleQuantity: 1
The listed part is a Switchcraft-style jack that fits the Relay body cavity.
Hookup Wire
FlexibleQuantity: 1 spool or assortment
Used for control-cavity wiring and ground connections.
Copper Foil Tape
SpecificQuantity: 1 roll
Used to shield the control cavity. Conductive adhesive is required so overlapping pieces maintain electrical continuity.
Fit-sensitive parts still need compatibility checks before purchase — the item notes above call out the constraints that matter. When a dimension or substitution is in doubt, ask in Discord before ordering.