V1 Handlebar Lever Shifter Height Alignment Tool

Before printing: Remember to properly calibrate your filament! Flow ratio, PA. 
You can easily fix your dimmensional accuracy with my latest project: 

https://makerworld.com/pl/models/2735157-dimensionpro-v2-the-ultimate-3-step-xy-calibration#profileId-3032106

New version V2 available with bigger reach and central pin ! for smaller printers:
https://makerworld.com/pl/models/2772466-v2-handlebar-lever-shifter-height-alignment-tool#profileId-3079889

V1:
 

Frustrated with uneven brake lever/shifters on your road or gravel bike? Put away the ruler and stop relying on your eyes. This 3D-printable tool provides professional-grade precision for perfectly aligning your Shimano, SRAM or Campagnolo shifters.

This tool is a game-changer for bike mechanics and home enthusiasts alike. While traditional methods rely on inconsistent handlebars curves, this tool mounts directly to the only absolute constant in the front end: your bike's steerer tube.

Designed to fit standard 1-1/8” steerer tubes, it replaces your top cap temporarily. By rotating the main arm 180 degrees, you can instantly compare the exact height and reach of both hoods, ensuring your contact points are perfectly symmetrical for a comfortable and injury-free ride.

Features:

• Absolute Symmetrical Precision: Calibrated relative to the fork steerer tube, not inconsistent handlebar shapes.
• Universal Compatibility: Works with all modern road and gravel drop bars and hood brands.
• Fully Adjustable: Sliding and pivoting arm accommodates variable reach and drop handlebar geometries. Maxium reach: 365mm 
• Workshop Durable: Designed for PETG to withstand workshop use without losing precision.
• Integrated Hardware: Designed for heat-set inserts for secure, repeatable adjustments.

BOM (Bill of Materials) & Required Hardware

To assemble this tool, you will need the following hardware:

1. 1x M6 Bolt: (Length varies by setup) Used to bolt the tool’s base directly to your fork's star nut or expander plug. In most cases, you can use the bolt that currently holds your top cap.
2. 2x M4 Heat-Set Inserts: (Length 5mm) These should be melted into the designated pivot points for secure fastening.
3. 1x M4 10mm Bolt: Used for the main arm's pivot joint.
4. 1x M4 15mm Bolt:  Used for the sliding reach adjustment mechanism (using a knurled knob is highly recommended here for tool-free use).