Chain Slack Tool

thingiverse

Basic tool to help measure chain slack. MK2 created to improve use: longer measurement, reference added to measure chain slack only. Place reference part above gauge part. Then rest the bottom of the chain on the gauge part and push up on the gauge part so it pushes the reference part to the top chain position. The push down on the chain to put the gauge part in the lower chain position. Chain slack is then measured between the reference and the gauge. Markers in 5 mm steps.