Anet A8 X tensioner
thingiverse
I got fed up with constantly replacing weak idlers so I designed this tensioner to utilize larger roller bearings. It uses a motor gear, a 5 mm shaft, and 5x13x4 bearings. The shaft will need to be cut flush with the outside of the bearings using a cutoff wheel. A Dremel cutoff or similar tool will work just fine. Additionally, a longer belt is likely going to be required. This is a remix of: https://www.thingiverse.com/thing:2507473. Bearings: https://www.amazon.com/5x13x4mm-Precision-Bearings-Rubber-695-2RS-BU/dp/B00ZVF8J3O/ref=sr_1_3?ie=UTF8&qid=1542047133&sr=8-3&keywords=13x5x4+bearing Shaft: https://www.amazon.com/Uxcell-a15113000ux1262-100mm-Model-Straight/dp/B01B27MJC6/ref=sr_1_4?ie=UTF8&qid=1542048081&sr=8-4&keywords=5mm+shaft Belt: https://www.amazon.com/dp/B071K8HYB4/ref=sxts_kp_bs_1?pf_rd_m=ATVPDKIKX0DER&pf_rd_p=8778bc68-27e7-403f-8460-de48b6e788fb&pd_rd_wg=yzTbg&pf_rd_r=TS498FPYXS2HS7KRKR7E&pf_rd_s=desktop-sx-top-slot&pf_rd_t=301&pd_rd_i=B071K8HYB4&pd_rd_w=R9YnN&pf_rd_i=gt2+belt&pd_rd_r=3f6f0cd0-26ca-49b7-bacb-29a42da14469&ie=UTF8&qid=1542048624&sr=1
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