| 主权项 |
1. A radius cutting platform assembly, comprising:
an assembly housing; a pivot mechanism carried by the assembly housing, the pivot mechanism adapted to pivotally attach the assembly housing to a support surface; a generally elongated router guide carried by the assembly housing, the router guide selectively adjustable with respect to the assembly housing along a linear axis; a router base having a router bit opening carried by the router guide; at least one set of distance markings on the router guide, the distance markings indicating distance between the router bit opening in the router base and the pivot mechanism;
a fine adjustment assembly carried by the assembly housing and the router guide, the fine adjustment assembly adapted to finely and precisely adjust positions of the router base relative to the assembly housing;wherein the fine adjustment assembly comprises a fine adjustment gear rack having gear rack teeth carried by the router guide, a fine adjustment knob carried by the assembly housing, a fine adjustment knob shaft engaged by the fine adjustment knob and a fine adjustment gear carried by the fine adjustment knob shaft and adapted to mesh with the gear rack teeth of the fine adjustment gear rack; anda gear housing carried by the assembly housing and a spring interposed between the gear housing and the fine adjustment knob, the spring normally biasing the fine adjustment knob and the fine adjustment gear in a disengaging position wherein the fine adjustment gear disengages the gear rack teeth of the fine adjustment gear rack. |
