Honda S2000 Throttle Pedal Heel-&-Toe Accessory by Sneezy3D

Last crawled date: 3 years ago

WORK IN PROGRESS.
This is a 3D printed throttle pedal extension accessory designed to help with 'heel & toe' braking with engine rev matching during down gear shifts in a Honda S2000. Where some drivers (like me with big feet) have difficulty with the standard throttle pedal position and spacing.
Aftermarket and DIY pedals are available made in sheet metals, but I think this 3D printable plastic extension may well be a first (if not then send me the WWW link). The 3D printed pedal extension accessory requires no modifications to the OEM pedal, it can be customised, it can be easily removed if required.
The design evolved in two parts, a Grip, and a Tab. The Grip slides onto a OEM Honda pedal from below, the Tab attaches to the Grip and provides the new pedal surface. Originally I was going to make the whole thing in one piece, but it makes more sense now to keep the design as two parts so the Tab can be easily customised by me or by others to suit their own needs (ankle reach and foot width etc).
The Grip is a snug fit to the OEM pedal and can be lightly glued with RTV on the sides and/or on the back, the Tab on this prototype design is meant to be glued to the Grip before installation, using epoxy or CA glues. For test fitting it will just snap together via locating bumps on both pieces if printed correctly.
I printed prototypes in ABS at 0.2mm layers on a well tuned Prusa i3, if your printer is good then the parts should be a snug fit. If not then rescale very slightly on the slicer software (on both parts). The Grip is best printed upright with the lower surface on the print bed (as seen on the fitted photos), the Grip is best print flat, with the back surface down.
STL files are at correct scale to be printed, but the SKP (Sketchup) files are at 1000x (m = mm) because Sketchup Make has issues with parts with small sharp corners.
The project is ongoing, I am still settling down the width and height (above OEM pedal surface) of the Tab so there are a few different height versions. Low is the thinnest, V4 is the thickest. Use the tab thickness that gives you the right amount of throttle to match rpm comfortably.
If you try one and create a new Tab please report it on Thingiverse.
Good luck and happy rev matching :)