Vanmoof S3 BUTIM Shifter

Overview

Vanmoof S3 E-shifter 3D printed replacement - BUTIM Shifter!

Each gear needs about 30° of rotation. You need any shifter where cable travels 2.8 mm per click. For example, Shimano Revoshift 6-speed shifter pull ~2.8 mm of cable per click. It is a cheap shifter and works well. Extra 2 speeds make it easier to adjust the shifter. Other Shimano shifters (7-speed, 11-speed, etc.) pull less cable, hence, it wouldn't work.

It’s easy to print, takes about 30–50 minutes to put together, and adjusting it isn’t bad at all. 

Parts

1. 3D printed parts

2. Shimano Revoshift 6 speed

3. Spring with diameter 9mm

4. OPTIONAL Spring with diameter 5mm (make sure it is soft)

5. M7 Brake Lever Adjuster

6. 3x M3 screws

7. 3x M3 heat sink inserts

8. Bike Cable fixing Bolt

9. Silicon Grease

Printing settings:
Material: PLA or PETG
Infill: for Top and Bottom case 50% or higher; for gears I would recommend at least 60%; for involute rack at least 70% and 100% if your PLA is soft.

Instruction

You have to use a file set after printing to smooth the mating surfaces and improve the fit between attachable parts. Then make sure that you put enough silicone grease. It will make shifting way smoother.
The helical gear has a dot that indicates the current gear. Each gear corresponds to 30 degrees of rotation, so moving from first gear to fourth gear requires a total rotation of 90 degrees. Adjust Cable shifter (Involute Rack) that way that switching from first gear to fourth gear is within the range.

Let me know in comments if you need any help.

Updates

Butim Shifter v1.4

Involute rack:

• removed auxiliary cable hole

• extended the main cable hole

• added a body rail for stability

Bottom body:

• extended space for main spring

Top body:

• Added pocket for involute rack's rail

• extended space for the main spring

Added handlebar grip

Butim Shifter v1.5

Involute rack:

• reinforced sides