Although this design shares some of the features from (another steampunk ckock) it realy is a new design with differing base and flywheel.and other mods the other design was fine when printed from full STL, when pinted from two halves the fragile spokes presented problems removing supports. this new design accomodates a std. 103 bezel skel clock with 94mm inert hole. but i have included a offset sleeve to use with a new fancy insert i aquired pics shown were printed from two halves and using sleeve and fancy test insert rivits are 2.5x6mm copper from ebay