NC Router Upgrade
With the increased volume of material running across the Bot we've upgraded from the PC router motors to a HSD High Frequency Spindles.
Spindles have the advantage of being more powerful (note that hp ratings between routers and spindles are not comparable) and will maintain their full torque down to much lower RPMs than a router. Spindles have precision bearings, which means less run-out and thus smoother and more accurate cutting. These bearings also stand up to continuous use better than those of a router. Bearings in a heavily used router might need to be replaced every 3-4 months, while a similarly used spindle should be good for a year or two between bearing replacements. A high-frequency spindle is also much quieter in operation than a router.