Bicycle Spoke Tension Meter

prusaprinters

This spoke tension meter is based on a design from DT swiss. Note: as long as this tool is not calibrated, only comparison measurements can be done, no absolute spoke tension is measured. Features:Set screw allows to adapt the spring forcetool-less mounting of the dial indicatorIf M5 version used: no slipping of the spokeThere are two versions, in the M4 version the two outer hex socket screws that grab the spoke are M4, no modification of screw head needed. For additional comfort, use M5 version and use a lathe to carve the M5 head a concave shape with diameter 7mm (M4 head diameter). I supply Fusion360 and step file in case you need to modify anything.analog or digital dial indicator2x bearing 624ZZ (4x13x5mm)1x compression spring 7mm x 32mm x 0.8mmM4 x 252x M5 x 10 or M4 x 102x M5 Washer or M4 Washer (diameter 15mm)2x M5 x 16 (one of them needs to have a hex head to mount the knob)1x M5 Washer diameter 9mm6x M4 washer diameter 8mm2x M5 hex nut1x M8x12 set screwWhen assembling make sure to add the six M4 washers as seen in the cross section view. After printing the grip, remove the included  support in the dial clamp with a sharp knive.Knob assembly: heat up the M5 screw with the hex head, then press it into the knob. This will hold it tight once cooled.