Ender 2, Ender 3 or Geeetech A10

thingiverse

Here's another belt tensioner designed with love and lots of caffeine :)\r\nInspired by the tensioner from Tevo Tornado, updated to fit 2040 frames from Ender printers or Geeetech printers.\r\n\r\nTo assemble this, you'll need some screws and nuts :]\r\n\r\nBOM:\r\nFor body assembly:\r\nFour M3x25 screws are needed,\r\nand four M3 nuts as well.\r\n\r\nFor idler:\r\nOne M3x25 screw is required,\r\nalong with one M3 nut and one M4 nut.\r\nAlso, an M4x40 screw serves as the adjusting screw.\r\n\r\nFor knob:\r\nA single M4 nut is necessary.\r\n\r\nWhen assembling the frame, you can reuse the original T-slot nuts and screws.\r\n\r\nThe pulley could be the original printer part with a printed spacer,\r\nor better yet, use a GT2 pulley with 20 teeth and a 3mm bore (available on eBay, Amazon, AliExpress etc.).\r\n\r\nAssembly is straightforward: install the big body part to the frame using two t-slot nuts and screws,\r\ninsert the belt into the idler with the pulley,\r\nput the screw into the idler,\r\nthen insert the idler into the body,\r\nand finally place the second part of the body.