X Tensioner and Pully for 2GT toothed idler pulley, 6mm belt, 4mm bore
thingiverse
I opted to swap out the smooth idler pulleys with toothed pulleys and discovered these online at Aliexpress. https://www.aliexpress.com/item/1Pcs-2GT-16-teeth-20-Teeth-synchronous-Wheel-Idle-Pulley-Bore-3-4-5mm-with-Bearing/32726309946.html?spm=a2g0s.9042311.0.0.pqIYK6 https://www.aliexpress.com/item/1pcs-2GT-Idler-Pulley-With-No-Teeth-Perlin-Passive-Pulley-Idle-Pulley-Bore-5mm-For-GT2/32738095464.html?spm=a2g0s.9042311.0.0.pqIYK6 However, I encountered an issue when installing them with this X Tensioner, https://www.thingiverse.com/thing:2417659, as there was a noticeable difference in diameter where the belt rides between the stock idler pulley and the toothed one. This resulted in no additional adjustability for tension. Consequently, I re-drafted the Brace and puller in Inventor, extending the Brace and re-dimensioning the puller to fit the new idler pulley.
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