Belt Runner - GT2 Belt Length Matcher

I got paranoid double, triple and quadruple checking belts everytime I had to cut a pair for a corexy gantry, so I created this to make it a quicker job.

This tool operates similar to a clothes zipper using the meshing of the teeth on the belts to ensure they both run the same length through the tool, note that there will be a single tooth offset in the belts so make sure to cut the belts offset to account for this (i.e. if one belt goes through a tooth ahead, cut the other belt a tooth behind on the other side).

The general procedure I used when belting my Voron Trident was to initially run one belt to get the correct length, then use that belt and this tool to get the length matched for the second belt.

Required Hardware

• 2x M3x12 SHCS (For 6mm Belts)
• 2x M3x16 SHCS (For 9mm Belts)
• 2x M3 Hex Nuts
• Bearings (See supported bearings below)

Supported Bearings

Information On Printing

Parts are designed to be printed at:

• 0.2mm Layer Height
• 0.4mm Fixed Extrusion Width
• At Least 2 Perimeters
• At Least 20% Infill
• At Least 5 Top/Bottom Layers

Tolarences are created with ABS printing in mind however should be able to print parts in other materials.

Can print with a single colour swap at layer 21 at 0.2mm layers to add some accent to it, alternatively can export a .step of each part from CAD and they can be split into parts for more accenting freedom.

CAD Placeholder References

• 608 Bearings
• Voron-Construct

Credits

• HartK for the idea to use different bearings
• Sonny for validating the F695 bearing version