Thank you for your comments. Boston Gear rates these gears for at least 1800rpm which is twice my max. I was hoping to create a compact gear reduction so that everything can be mounted on the gantry to allow maximum adaptibility of the frame (with a fourth axis and continuous cutting in mind). I could adapt the torque transfer shaft to a ballnut/rack design, but I wish to retain the narrow gantry.Belts would also work, but my linears are very robust and I guess I would need reinforced belts to max the cut. Perhaps I will design the frame to accept all possibilities. |