Home use 3D Printer has two futures: Portable like Foldarap or as huge as possible a Delta Robot 3D Printer.
If adopt smooth rod, Delta Robot 3D Printer nowdays use 8mm Smooth Rod at most, but to make bigger 3d printer, 10mm smooth rod is much more ideal of stability. Makers are chasing 10mm inner bore components like Linear Bearing, Smooth Rod, Support Unit SK10, SCS10UU, SHF10, 10mm bore gt2 pulley as well.
Days before, we had some requests of 20 teeth n 32 teeth gt2 pulley w/ 10mm bore, and RobotDigg decide to produce a 10mm bore gt2 pulley, it's a 32 teeth, 6.5mm width gear timing pulley.
If you are chasing a 20 tooth gt2 pulley with 10mm bore, please stop because a 20 teeth gt2 pulley which is 2mm pitch timing pulley cann't have a bore of 10mm, the largest bore of 20 teeth is a gt2 pulley 8mm bore.
Hope you can have a printing area as large as you want with your delta robot 3d printer.
