TRX-4 External Pro Scale Signal Switch

The Traxxas Pro Scale lighting system and iLink lighting control system are pretty slick, but the one thing you cannot do from the iLink app is turn the emergency flashers on and off: you have to remove the body and press a button on the controller. I took inspiration from the 3D-printed ESC power external switch pushers for the TRX-4 crawler and created a switch pusher for the Signal button on the Pro Scale lighting controller. It coexists nicely with the button pusher for the Hobbywing Fusion Pro motor/ESC combo (https://www.thingiverse.com/thing:4857941) and presumably the button pusher for the stock ESC (https://www.thingiverse.com/thing:3462473).

Here it is in action: https://youtu.be/myJxaxX0Shk

Print Settings

Printer Brand:

Snapmaker

Printer:

Rafts:

No

Supports:

Resolution:

0.2mm layers

Infill:

Filament: Elegoo Rapid PLA+ Black

Notes:

Post-Printing =============

In addition to the four 3D-printed parts, three machine screws are required: two M3x12mm (preferably button head) and one M2.5x25mm screw (cap head or button head).

The two M3 screws are the pins for the handle-to-lever hinge and the bracket-to-lever hinge and should be screwed into the side of the hinge opposite the Pro Scale breakaway connector.

The M2.5 screw replaces the outer Pro Scale lighting controller mounting screw (it's longer than the stock screw). There's a hole in the bracket that the screw goes through after exiting the plastic "nut" on the underside of the controller mount plate to stabilize the bracket. It can be a little tricky to get the screw to go through that hole.

The handle clip is optional. It mainly just takes the wobble out of the handle.

The assembly order is:

1. Attach the bracket to the controller and controller mount using the M2.5 screw.
2. Attach the end of the lever to the handle hinge point using one of the M3 screws, driven in from the front.
3. Position the handle so that it slips between the bracket and the running board.
4. Attach the middle of the lever to the bracket hinge point using the other M3 screw driven in through the front.
5. Optionally attach the clip where shown in the photos and the image below. The "fat" side of the clip goes toward the rear of the vehicle.

Category: R/C Vehicles