I wanted to mount my Dremel to a bench, but the original model by Faklam had a ring the Dremel didn't fit though (I later realised that the top can be screwed off). So I cleaned up the model, made the ring bigger, and ended up almost remodelling the whole thing. Unlike the original, the head of the tool is pressed against the small ring rather than going through it, which should be stable enough for most applications. For printing, I used supports for only the most horizontal parts of the rings. In this case I used a 0.6 mm nozzle and a layer height of 0.36 mm, as this model doesn't require much detail :)