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» CNC : Computer Numerically Controlled

About CNC Machines

  • The introduction of CNC machines radically changed the manufacturing industry.
  • Curves are as easy to cut as straight lines, complex 3-D structures are relatively easy to produce, and the number of machining steps that required human action have been dramatically reduced.
  • With the increased automation of manufacturing processes with CNC machining, considerable improvements in consistency and quality have been achieved.

~ from Wikipedia.org



» Table size: 10" x 54"
» Longitudinal travel: 31.75"
» Cross travel: 16"
» Quill travel: 6"
» Quill diameter: 105mm
» Spindle taper: NT 40
» Spindle speeds: Variable, 50-5000 RPM
» Motor: 3 HP, 3-phase
» Voltage: 220V
» Auto lubrication: Yes
» Work Lamp: Included
» Coolant system: Included
» Chip tray: Included
» Also see:

» View Larger Image
Serious muscle coupled with the best control software on the market brings you the power and flexibility needed in today's production environment.

Grizzly's new CNC bed mill features Meehanite castings with scientifically designed webbing to enhance structural rigidity. High torque, high precision servo motors give it incredible control with 390 inches per minute rapids and a resolution of 0.0001" (one ten-thousandth of an inch) on 3 axis box ways.

Coupled with a 12 position auto tool changer and spindle encoder allowing tool changes by code, this machine is Rigid-Tapping capable with Centroid™ easy to use conversational programming, all of your programs can be developed right at the machine. And of course, you can up load standard G-code from your CAM software, too.

The 2D Coaxial indicator can be used at any angle and the dial remains stationary during the rotation of the machine spindle. The complete set includes indicator and a wide variety of probes for internal and external features, a center point and also a restraint pin.

» X axis Travel = 8, Y axis travel = 7, Z axis travel = 6.25
» Laser engraved measurement reference scales on table and base
» Adjustable zero handwheels on all three axes
» 1/4 Jacobs drill chuck and drawbolt included
» Column adjusts in multiple directions for drilling or milling compound angles

» 4-axis driver board contained in its own compact anodized aluminum box
» 4 output cables for X, Y, Z and A (rotary) axes with plugs for Sherline stepper motors
» 1 parallel (25-pin) input cable for connection to computer printer port
» 6 amp power supply
» Includes Linux operating system and EMC software on 2-CD set

Sherlines complete CNC systems include a 4-axis driver box and power supply built right into the computer. This driver box is a separate unit that contains the same components. A 25-pin parallel cable comes from the box to connect to the printer port of your own computer. Four cables for X, Y, Z and A (rotary) axes contain plugs ready to plug in to P/N 67127 Sherline stepper motors. A separate power supply is included as is the Linux operating system and EMC motor controller software on a 2 CD set. Operates on 120 VAC or 240 VAC...

The vertical milling column turns a Sherline lathe into a light-duty mill in less than 30 seconds. This column has a NEMA 23 stepper motor mount in place of the handwheel ready to accept the application of a stepper motor and CNC control. (Motor and control not included.)

Now you have a vertical axis, called the Z-axis that gives you all the functions of a vertical milling machine. You can do drilling, milling, boring, fly cutting everything you could do on a mill, except that you are working with a smaller table.

If you have purchased a Sherline CNC system and wish to add the 4th or rotary axis, this rotary table with stepper motor is ready to plug right in. The EMC software is already 4-axis capable and there are 4 drivers installed in the driver box. The 5-pin mini-DIN connector on the stepper motor is ready to plug into the A-axis cable to make your system capable of 4-axis machining.

It gets into spaces that others can't even begin to. Because the holder is configured and located in the lathe turret like an OD turning tool, the only thing protruding in front of the turret face is the tip of the center drill.

As a result, the center drill can be programmed to drop into the space between the end of the part to be center drilled and the tip of the live center in the retracted position, a space less than the travel on most tailstock quills.

For shaft work, the part can be faced and center drilled and then the tailstock quill can be advanced to support the workpiece between centers for heavy duty OD finishing. The time consuming process of stopping the machine to reposition either the workpiece or the tailstock during the machining cycle is completely eliminated.

Also see:
» - Holds 3/4" max Diameter Center Drill
» - Holds 1/2" max Diameter Center Drill

» 3700 4 rotary table is fitted with a dual shaft NEMA 23 stepper motor to drive it
» 2 amp, 136 oz-in stepper motor is driven by programmable keypad/driver unit
» Resolution: 400 steps/rev (.0125°)
» Rotation speeds: programmable from 1° to 50° per second
» Divisions (0-999), Degrees (to 3 decimal places), Program and Settings modes

Based on the 3700 4" rotary table, this stand-alone CNC indexer can make your dividing and indexing jobs easy. Instead of cranking the rotary table handwheel by hand, you simply input your desired divisions or degrees and hit the NXT (Next) button.

The stepper motor accurately advances the table to your preprogrammed position. You can divide a circle into from 1 to 999 divisions or into degrees to three decimal places at the touch of a button. The internal memory chip can store two programs of up to 40 steps each with up to four programmable parameters for each step. Resolution of the stepper motor is .0125° per step or 28,800 steps per revolution ±.006°/step based on 400 steps per revolution and a 72:1 worm gear.

Rotation speed is programmable between 1°/second and 50°/ second. The unit can also be daisy-chained to communicate with other 8700 or 8800 (linear control) units to put together sophisticated sequential CNC movements without any need to learn G-code.

A 120 Volt (input) 24 Volt (output) power supply is included as are an extension cable and ½ daisy-chain cable. The 136 oz-in stepper motor includes a handwheel on the rear shaft for optional manual control.

Works with Sherline mills or with other mills, drill presses and production fixtures. Its small size makes it a good fit inside compact enclosures.

» Attach to any Sherline CNC-ready axis, driven by programmable keypad
» Input commands at the control box to move appropriate lathe or mill slide
» Programmable from 1" /min to 25" /min feed rates
» Input dimensions to 3 and ½ decimal places (.0005")
» No metric version available at this time

The programmable controller is essentially a stepper motor driven power feed for any axis of your Sherline CNC-ready lathe or mill. The driver box contains a programmable chip that uses simple commands entered from its own keypad to control speed, direction and stopping points of your lathe or mill.

Speed is programmable from 1 IPM to 25 IPM, and distance is programmable in .0005 increments. Backlash compensation is also programmable.

Two or more units can be daisy-chained together for sequential operations. It can work with another 8800 controller or with the 8700 rotary table controller for operations like full automation of cutting gear teeth.

Two programs of up to 40 steps with 4 parameters per step (speed, distance, direction and stop/wait for signal) are available. An LCD readout on the control box gives you current position and prompts you for programming commands. Included is a 120 VAC power supply. (NOTE: Available in inch version only, no metric or 240 VAC version available at this time.)

» Driven by programmable keypad, power supply included
» Drive lathe crosslide or mill X or Y axes with a stepper motor
» Includes 8800 kit above PLUS stepper motor mount and coupler for lathe crosslide, mill X, Y axis
» Newer machines predrilled, drill guide block provided for older machines

Similar to the 8800 linear controller, the 8850 also includes a stepper motor mount for converting the X or Y axis of your Sherline mill or the crosslide of your Sherline lathe to programmable control. The two-piece leadscrews used on these axes are modified by removing the leadscrew end to work with the stepper motor coupling provided, so no new leadscrews are required. Drill guides are provided for drilling and tapping two holes in the end of the table, although newer lathes and mills after 2002 probably already have the holes in place.

This set includes the stepper motor mount, stepper motor, control box, power supply, extension cable and ½ Daisy-chain cable.

For use on NC and CNC machines. Ideal for multiple vise set-ups. 3 sides guaranteed flat to .001" for precise mounting. 17 1/2" overall length, 1 3/4" Jaw Height.