Handbrake for Sim Racing

Handbrake

A handbrake to use in driving games. The picture of the assembled design (or the FreeCAD files) should given an idea how everything fits together. Putting it all together inside the small enclosure wasn't that easy.

All parts don't need to be printed. For example, M5 or M6 threaded bars can be used for different "axles" instead. In addition to the printed parts you'll need some M6 threaded bar, M6 nuts, some screws and something for the handbrake lever. I used a piece of 25mm pipe (with holes drilled for the axles). That was from a left over clothes rail.

Original FreeCAD files of the design are included. I didn't use any Assembly module for FreeCAD, so almost all parts are created in the same file.

PCB

A simple PCB for PIC18F2550 and supporting components was designed using Fritzing and ordered from Fritzing Fab. Device is connected to a computer using USB and it presents itself as a USB keyboard or a analog game controller. Device is also powered by its USB connection.

The design was made to fit this PCB, and it barely did. It's not so easy to get the PCB in its place.

Schematic and Fritzing file is also included.

Software

If implemented using the given schematic, only software component required for this project is the PIC firmware written in C. Device can act as a standard USB keyboard or game controller recognized by Windows. So no extra drivers are required.

I haven't finished my firmware yet. I have only made the minimum to read data from device to see that everything works.

Print Settings

Printer Brand:

Ultimaker

Printer:

Rafts:

No

Supports:

Resolution:

0,2mm

Infill:

Notes:

Design has been made so it should require any extra supports to print.

Category: Video Games