Whammy Wheel Parts
The wmy-wheel-joint.stl and wmy-wheel-pot.stl parts will need to be super glued to the wmy-wheel-mid.stl part.
Glue Joint to Wheel
Start by applying a moderate amount of super glue to the wmy-wheel-joint.stl to one of the sides of the wmy-wheel-mid.stl part.
Glue Potentiometer Holder to Wheel
Add super glue to the wmy-wheel-pot.stl part and adhere it to the other side of the wmy-wheel-mid.stl part.
Glue Spring Plate
The wmy-plate-spring.stl part will need to be super glued to the wmy-plate-pot.stl part. Apply a moderate amount of super glue to the flat side of the wmy-plate-spring.stl part.
Glue Spring Plate to Potentiometer Plate
Adhere the wmy-plate-spring.stl part to the flat side of the wmy-plate-pot.stl part. Double check the edges are square on both of the parts.
An extension spring will be attached to the wmy-spring-ring-a.stl and wmy-spring-ring-a.stl parts to create the spring assembly.
Install Extension Spring
Install the extension spring to either the wmy-spring-ring-a.stl or wmy-spring-ring-a.stl part. Press fit one of the loop ends to the slot on the end of the spring rings.
Install Ext. Spring to Holders
Grab the second spring ring and install the remaining loop end. Hold the two spring rings together so they're together.
Install Spring Holder Set to Plate
Place the set of spring rings onto the cylindrical post on the wmy-plate-spring.stl part. The two spring rings are placed and fitted together. Reference the photo for correct placement.
Installed Spring Holder Assembly
The spring assembly is now ready to be installed into the rest of the whammy assembly.
Gather up the knobby potentiometer, 3-pin jST female cable, 10-wire silicone ribbon wire and the 3-pin JST male connector.
Measure and cut a piece of the 10-wire ribbon wire (88mm in length). Peel off a 3-wire set.
Wire up the 3-wire silicone cable to the 3-pin JST male connector. Don't forgot to put heat shrink tubing on first!
Cut and trim the 3-pin JST female cable to prepare it for wiring. The following wire lengths are recommended.
female cable – 74mm
male cable – 88mm
Wire up the 3-wire silicone cable to the potentiometer. Connect the 3-pin JST female cable and follow the signal, voltage and ground wiring. Signal (white) in the middle pin. Voltage and ground on the side pins.
Press fit the knob on the potentiometer into the whammy wheel. Check the orientation of the pins are facing up.
The tension in the spring needs to be tight in order for the wheel to snap back to the center. Using needle nose pliers can help assist in bending the loops so the spring tension is tighter.
Whammy Body Parts
The whammy assembly requires 4x M3 x 6mm screws and 4x M3 hex nuts. The two mounting brackets (wmy-plate-idler.stl and wmy-plate-pot.stl) will need to be secured and fastened to the bottom half of the body.
Install Whammy Idler
Insert 2x M3 x 6mm through the bottom of the guitar. Place the wmy-plate-idler.stl over the two screw threads. Insert and fasten 2x M3 hex nuts to secure the part to the body of the guitar.
Install Wheel to Body
Insert the remaining 2x M3 x 6mm screws into the mounting holes on the guitar. Place the wheel sub-assembly in the body of the guitar. Insert the cylinder from the wmy-wheel-pot.stl part into the hole in the center of the wmy-plate-idler.stl.