adjustable torque wrench prototype, fully 3d printed
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fully 3d printed torque wrench (except the screws, but you can use glue instead) 3/8 adapter included
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UPDATE 2: two new stronger spring files added, to be tested spring v2.1 and v2.2
UPDATE 1: tested with a scale and with spring v2.0 I got 3kgf with a lever of 6.9cm which is about 2Nm torque, not as strong as I thought but the spring can be made thicker and taller, to there is room for improvement, nothing broke, but the spring bottomed out
has fine adjustment, use PETG, I used recycled PET bottle filament from my pullstruder.
you should use a calibration lever and a scale for precise torque setting.
supports are needed for some parts