Basic Specifications for Shopsmith Multi-Purpose Machines
Shopsmith MARK 7 and other MARK Models
Shopsmith’s multi-purpose woodworking machines are available in three different versions – A MARK 7 version with an electronically-controlled DVR (Digital Variable Reluctance) motor and digital electronic speed control – and two MARK models with a conventional AC motor and mechanical speed-change mechanism. The specifications in the chart below will help you select the configuration that best suits the types of woodworking you’re planning to do.
The chart below shows the motor & power specifications for the three options, including the MARK 7 model and the two MARK models – MV 520S & M4 [Shorty]. This chart also includes the basic machine specifications that are common to all Shopsmith machines, regardless of version.
Motor/Power
| PowerPro | Conventional Motor | |
|---|---|---|
| Type | DVR (Digital Variable Reluctance) | Conventional AC |
| Wired For | 120 and 240 volts | 120 Volts |
| Amperage | 15A at 120V, 7A at 240V | 13.5 amps |
| Horsepower | 1-3/4 HP at 120 volts or 2 HP at 240 volts | 1-1/8 HP |
| Speed Change Mechanism | Electronically Controlled | Pulleys and Belts (Reeves Drive) |
| Speed Range | 250 rpm to 10,000 rpm | 700 rpm to 5,200 rpm |
| Reversible | Yes | No |
Individual Tool Specifications
| Mark 7, Mark V | Mark 4 | Comment | |
|---|---|---|---|
| Table Saw | |||
| Main Table Size | 17-1/2″ x 22″ | Left-to-right support with extension tables and tubes – 102″ | |
| Sawblade Diameter | 10″ | ||
| Maximum Depth of Cut | 3-1/4″ at 0° | Saws completely through 4 x 4 lumber | |
| Maximum Ripping Capacity | 98″ | 82″ | |
| Miter Range | 60° left to 60° right | Holds your stock at precise angles during sawing | |
| Disc Sander | |||
| Disc Diameter | 12″ | A full 113 square inches of sanding surface | |
| Disc Feed | 4-1/4″ | For precise micro-feed of disc into stationary workpiece | |
| Miter Range | 60° left to 60° right | Holds your stock at precise angles during sanding | |
| Horizontal Boring Machine | |||
| Maximum Stock Length | Unlimited | Great for long boards and large workpieces | |
| Quill Feed | 4-1/4″ | Feeds bit into your stock, as with vertical drill press | |
| Vertical Drill Press | |||
| Capacity | Drills to center of 16-1/2″ workpiece | Rarely do typical drill press tasks require more | |
| Main Table Size | 17-1/2″ x 22″ | Floating extension tables & (4) 27″ tubes can provide up to 78″ of front-to-back workpiece support | |
| Maximum Chuck-to-Table Distance | 25″ | 9″ | Can drill into large project component assemblies |
| Maximum Chuck-to-Floor Distance | 58″ | 42″ | Can drill into large project component assemblies |
| Quill Feed | 4-1/4″ | ||
| Lathe | |||
| Swing Over Ways | 16-1/2″ | Easily handles large diameter faceplate turnings | |
| Maximum Distance between Centers | 34″ | 18″ | Turns table legs, porch rails, etc, as well as small projects such as pens & miniatures |
| Tool Rest | 360° swing of tool rest & arm | Simplifies tool rest-to-workpiece alignment | |
| Over-Table Router | |||
| Throat Clearance | 15-1/4″ | ||
| Spindle Stroke | 4-1/4″ | Exceeds that of portable plunge routers | |
| Bit Chuck | 1/2″ diameter | 1/4″ diameter model also available | |
| Worktable Size | 17-1/2″ x 22″ | Floating extension tables & (4) 27″ tubes can provide up to 78″ of front-to-back workpiece support | |
| Under-Table Shaper | |||
| Throat Clearance | 15-1/4″ | ||
| Spindle Stroke | 4-1/4″ | ||
| Arbor Diameter | 1/2″ | Includes 25/32″, 1″, 1-1/4″ & 1-1/2″ rub collars | |
| Worktable Size | 17-1/2″ x 22″ | Floating extension tables & (4) 27″ tubes can provide up to 78″ of front-to-back workpiece support | |
