Shopsmith 555970 - Manual (Page 2)

555970 MARK V – MOUNTED OVERARM PIN ROUTER
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INTRODUCTION
Shopsmith’s MARK-V Mounted Overarm
Pin Router can perform many jobs that are
normally intended for other tools . . . and it
can usually perform these operations much
faster and with far greater precision and re-
peatability than you could hope to achieve
using more conventional methods.
It’s called an Overarm Router because it op-
erates with the rotating bit above the
workpiece rather than below it . . . providing
a clear view of what’s going on at all times
while you’re cutting . . . unlike a typical router
table set-up where the bit makes its cuts on
the underside of your workpiece.
This approach also means that you won’t
need a costly, under-table router motor lift
to help you make precise depth-of-cut ad-
justments. With the MARK-V Mounted
Overarm Pin Router, these adjustments are
made using your Overarm Router’s Quill
Lever, just as you would when drilling holes
or performing similar operations with a drill
press or your MARK V.
WHAT CAN I DO WITH THIS TOOL?
Those who are familiar with Pin Routers of-
ten believe that the only operation such a
machine will perform is duplicate routing,
This simply isn’t true!
In fact, Shopsmith’s Overarm Pin Router will
perform any operation that can be per-
formed with a typical router table. As a re-
sult, you’ll soon find yourself reaching for
your Overarm Router for a multitude of
woodworking operations, including:
• Basic straight-line routing operations
• Routing decorative edges and surface de-
signs on straight, round or curved
workpieces of all types, including furni-
ture, cabinets, tabletops, etc.
• Cutting precision dadoes, grooves, rab-
bets, dovetails and other types of struc-
tural joints
• Making all types of stopped cuts
• Repairing furniture and veneers
• Jointing the edges of workpieces
• “Sawing” straight and irregular shapes
• Drilling holes
• Pin routing duplicate workpieces with
matchless repeatability
WHAT IS PIN ROUTING ?
Pin Routing is a simple operation through
which you can quickly and easily make
many duplicate copies of a particular project
and have each one turn out exactly the same.
In fact, prior to the introduction of CNC
(computer numerically controlled) Routers,
this was one of the primary processes used
by most furniture manufacturers when cut-
ting-out odd-shaped project components.
In a nutshell, here’s how it works:
• A template or fixture is created by cutting
3/8" deep grooves (1/4", 3/8" or 1/2"
wide) that exactly match the shape of the
workpieces you’re making
• A straight router bit is then inserted into
your router motor . . .which is mounted in
the Overarm Router
• A tracing pin (same size as your straight
bit: either 1/4", 3/8" or 1/2") is inserted
into the Overarm Router’s Table Plate –
and the pin and router bit are aligned per-
fectly with one another
• A workpiece blank is temporarily attached
to the back side of the template containing
the pattern groove
• The template or fixture is flipped over
(workpiece attached) and its groove
dropped over the tracing pin
• The router is turned on and the bit low-
ered into the workpiece while the groove
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