57 - A Shop-Built Pin Router, страница 18

57 - A Shop-Built Pin Router, страница 18

WORKPIECE

TEMPLATE

WASTES-

TEMPLATE

18 ShopNotes No. 57

is

WORKPIECE

Decorative Relief ►

A pin router is a great way to "carve" out decorative reliefs, custom-fitted recesses and signs, like the projects shown below. And when you get right down to it, a pin router is a very basic machine. There's a router bit that lines up with a small pin in the base. The pin helps guide a template that's attached to the bottom of the workpiece.

The problem is most pin routers are large pieces of equipment typi-k cally found in a

Fitted Tool Case

A The Basics. /\s you guide the template around the pin in the base of the pin router, the router bit cuts a matching recess in the top of the workpiece.

GUIDE

A Sign Making

production shop. I was looking for a scaled-down version I could use in my own shop. So I built the pin router shown in the photo above.

Base and Carriage - This pin router has two basic parts. The first is a base that supports the workpiece and template. The guide pin fits in the base directly under the router bit. As you slide the workpiece (and template) around, the pin only allows the router bit to rout a recess that matches the tem-

plate, as shown in the drawing and detail below.

The other part of the jig is a carriage that supports the router (and bit) above the workpiece. As you can see in the inset photo on the opposite page, the carriage is