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The improper use of machine tools and their accessories can result in serious injury. Before using this tool, thoroughly read the instructions and make sure you understand its proper and safe use. |
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Back to Linear Controllers & Power Feeds
CNC Linear Controller with 24″ Leadscrew
This CNC power feed includes a stepper motor mount and a 24″ leadscrew for use with Sherline lathes that are not CNC-Ready. The stand-alone controller is programmable through its integrated keypad and directly controls the attached stepper motor, which can be mounted to drive the leadscrew of the lathe.
An 8-pin mini-DIN cable allows multiple controllers to be connected in a “daisy-chain” configuration. Controllers can signal one another to operate in sequence, enabling complex multi-axis movements without requiring a computer or master CNC controller. The controller can also be used in combination with existing CNC systems. Each unit is user-programmable with two independent programs of up to 40 steps each. For each step, you can set travel distance, direction, feed rate, and whether the sequence pauses or proceeds automatically.
The linear controller can also be daisy-chained with Sherline’s rotary controller (P/N 8700) to combine rotary and linear movements. This makes it easy to perform advanced tasks—such as gear cutting—without any CNC programming knowledge beyond the keypad interface.
Advantages of Using a Power Feed:
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Provides a constant feed rate for a smoother, more consistent surface finish
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Reduces the chance of errors caused by miscounting handwheel revolutions
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Eliminates physical effort for long cuts or returning the saddle to the starting position
Programming is quick and straightforward. Stored programs can be executed repeatedly at the touch of a button with high precision.
Included with the CNC Linear Controller:
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Linear controller with integrated keypad
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Power supply
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#23 frame size stepper motor
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Cables
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Stepper motor mount
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24″ leadscrew
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Dampened coupling
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Preload nuts
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Drill guide block
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Complete installation and operating instructions
Power Supply Compatibility:
The included power supply operates on 110–240 VAC and automatically adjusts for international use (220–240V). Earlier versions of this product were supplied with a 110 VAC-only power supply.
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| Power Supply | Input: 115 VAC 50/60 Hz, Output: 24V, 1 Watt |
|---|---|
| Stepper Motor | 100 oz-in, 2 Amp, #23 Frame size, 400 steps per revolution |
| Speed | 1″/min. to 25 in/min (programmable) |
| Distance | from 0.0005″ to 9.9995″ in steps of 0.0005″ |
| Backlash Compensation | Programmable |
| 12050 | (4) 8-32 x 3/8″ SHC Screw |
|---|---|
| 40520 | 10-32 x 3/16″ cup point set screw |
| 67026 | CNC-24″ Lathe Bed Leadscrew |
| 67040 | CNC-Leadscrew Thrust Bed Hold-down |
| 67102 | Stepper motor mount |
| 67104 | CNC Preload Nut (RH-Fine) |
| 671052 | CNC Coupling |
| 67111 | (2) 8-32 x 7/8″ SHC Screw |
| 67115 | 5-40 x 7/8″ SHC Screw |
| 67116 | CNC Template, bed bushing |
| 67120 | (2) Stepper motor preload bearing |
| 8800 | Linear controller (for CNC-Ready) |
Related products
CNC Linear Controller – Z-Axis
This stand-alone controller is programmable from its keypad and controls the stepper motor's function to which it is attached.
An 8-pin mini-DIN cable can be used to connect multiple units in a "daisy chain." The units can signal each other to work in sequence, allowing multiple movements to be accomplished without using a computer or master CNC controller. They can also be used in conjunction with existing CNC controllers. The controller is user-programmable with two separate programs of up to 40 operations each. In each block, you can control distance, direction, speed, and whether the program pauses or proceeds to the next block.
The linear controller can also be "daisy-chained" with Sherline's rotary controller to achieve rotary and linear movement combinations. This makes it easy to set up for relatively sophisticated operations like cutting gears without having to know anything about CNC programming beyond what is entered from these simple keypads.
Using a power feed offers several advantages:- A constant feed rate gives a smoother, more consistent final finish
- The chance of errors due to miscounting handwheel revolutions is reduced
- No physical effort is needed for long cuts or returning the saddle to its starting position after a cut is complete
Programming is quick and simple, and programs are repeated at the touch of a button with high accuracy.
Items included with the CNC Linear Controller:- Linear Controller w/Keypad
- Power Supply
- #23 Frame Size Stepper Motor
- Cables
- Stepper motor mount
- Z-axis Leadscrew
- Dampened coupling
- Preload nuts
- Drill guide block and complete installation and use instructions
The controller power supply is 110-240VAC compatible. It automatically switches from 110V to 240V for countries with 220-240 volt electrical current. The original power supply that we offered with this product was 110 VAC only.
Rotary Table Indexer
Sherline has advanced its precision 4" rotary table into the 21st century with the addition of Computer Numerical Control (CNC). This upgrade makes it an ideal solution for clockmakers, gear cutters, and anyone needing to machine intricate radially symmetrical patterns. The CNC rotary table takes the complexity out of repetitive indexing tasks.
Complete, Stand-Alone System
Programming is done entirely through the integrated numeric keypad—no computer required. The system includes everything needed for operation:
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4" Sherline rotary table with pre-installed stepper motor
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Microprocessor unit with numeric keypad
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115 VAC power supply (universal 110–240 VAC compatible)
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All required connecting cables
Mounting Options
The rotary table includes clamps and T-nuts for mounting to the T-slots of a Sherline mill table. Additional options allow for flexible positioning:
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Right-Angle Attachment: Holds the table vertically at a 2.7" center height. A matching right-angle tailstock is also available for supporting long workpieces.
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Tilting Angle Table: Allows mounting at any angle from 0° to 90°. At 90°, the center height remains 2.7", compatible with the right-angle tailstock.
Simple, Accurate Operation
Simply enter the steps per revolution (or degrees per step) via the keypad. The table advances precisely to the next position at the press of a button. If needed, previous positions can be recalled instantly.
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Resolution: 28,800 steps per revolution
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Accuracy: ±0.006° per step
This precision allows for accurate machining of gears with odd numbers of teeth, and built-in calculations prevent cumulative errors.
Flexible Integration
This CNC rotary indexer is a complete, stand-alone unit—perfect for complex indexing operations. It can also integrate with other CNC systems:
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Accepts input signals from an external CNC controller
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Sends “completion” signals back to the master controller
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Can be daisy-chained with other units for coordinated actions
For more advanced applications, the rotary table can be linked with Sherline’s linear controller (P/N 8800), enabling seamless combinations of rotary and linear motion—ideal for gear cutting and other multi-axis operations, all without requiring advanced CNC programming knowledge.
Weight Capacity (Continuous Use)
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Horizontal orientation: 50 lbs
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Vertical orientation: 30 lbs
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Vertical rotational torque: 6 ft-lbs (e.g., able to lift a 6 lb. weight 12" from the center)
Note: The table can handle heavier loads if not under continuous use. Refer to the Video tab for practical examples.
Power Supply
The controller power supply operates on 110–240 VAC and automatically adjusts for global use. (Earlier models included a 110 VAC-only power supply.)
Compatibility with Tilting Angle Table (TAT) Limit Switches
For instructions on using the rotary table with limit switches on the TAT, see the “Instructions” tab and download the PDF titled MASSO Rotary Table Limit Switch Interference on the Tilting Angle Table.
Stepper Motors
Sherline stepper motors are NEMA 23, dual-shaft motors designed specifically for our CNC mills, lathes, and rotary tables.
Both the standard motor (P/N 67127) and the high-torque motor (P/N 67126) are rated at 2.0 A/phase and are fully compatible with Sherline CNC systems, driver boxes, and motion controllers. The dual-shaft design allows you to add handwheels for manual control when needed.
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[pane title="Features"]
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[pane title="Compatibility & Installation Notes"]
- NEMA 23 frame size – fits Sherline CNC-ready mills, lathes, and rotary tables.
- Dual-shaft design – both ends of the shaft are usable; flats are ground on each end for secure attachment of handwheels and couplings.
- Standard step angle – 1.8° per step (200 steps/rev) for precise motion control.
- 2.0 A/phase – both motors are rated at 2.0 amps and work with existing Sherline CNC power supplies and driver electronics.
- 6-lead wiring – allows use in a variety of bipolar or unipolar configurations (see spec sheets for wiring diagrams).
- Designed for Sherline CNC – plug-and-play with Sherline driver boxes and motion controllers when used with the supplied connectors.
P/N 67127 – Standard Stepper Motor (with Plug)
The standard Sherline stepper motor (P/N 67127) comes pre-wired with six leads into a 5-pin DIN connector that plugs directly into Sherline’s CNC driver boxes and linear or rotary controllers. Simply plug each motor into the corresponding axis cable for a quick, clean setup. This motor is ideal for typical Sherline CNC applications where cutting loads are moderate, such as machining aluminum, brass, plastics, and light cuts in steel.P/N 67130 – Stepper Motor (Without Plug)
P/N 67130 is the same basic motor as P/N 67127 but supplied with six raw wire leads and no connector. It is intended for non-Sherline controllers or custom installations where a different pinout or connector is required.P/N 67126 – High-Torque Stepper Motor
Sherline’s high-torque stepper motor (P/N 67126) uses the same NEMA 23 frame size and 1/4" dual shaft as the standard motor, but delivers over 75% more holding torque. This added torque is especially useful on the Z-axis, where it can better handle the weight of the headstock and motor, and for heavier cuts or higher feed rates. Rated at 2 amps, the high-torque motor is fully compatible with all Sherline CNC machines, including complete CNC systems, the 4-axis driver box, CNC rotary tables, and Sherline linear and rotary controllers. No power supply upgrade is required. [/pane] [pane title="Specifications Comparison"]| Specification | P/N 67127 – Standard | P/N 67126 – High-Torque |
|---|---|---|
| Frame size | NEMA #23 | NEMA #23 |
| Shaft | 1/4" diameter, dual shafts | 1/4" diameter, dual shafts |
| Step angle | 1.8° (200 steps/rev) | 1.8° (200 steps/rev) |
| Holding torque | 0.775 N·m 7.9 kg-cm 109.71 oz-in 6.856 in-lb | 1.35 N·m 13.756 kg-cm 191.17 oz-in 11.948 in-lb |
| Maximum RPM | 530 RPM | 530 RPM |
| Voltage (nominal) | 3.2 V DC | 4.5 V DC |
| Current | 2.0 A/phase | 2.0 A/phase |
| Rotor inertia | 250 g-cm² | 480 g-cm² |
| Axial / radial load (max) | See spec sheet | Axial: 15 N (3.37 lbf) Radial: 75 N (16.86 lbf) |
| Number of leads | 6 leads (with DIN plug on 67127) | 6 leads |
- Coupler requirement: Because of the increased torque, the high-torque motor (P/N 67126) must be used with the updated CNC coupling (P/N 671052). This coupling replaces the older 3-slot coupling (P/N 67105).
- Motor mounts: When used with a Sherline stepper motor mount (P/N 67101), be sure that the shaft entering the coupling has a flat aligned with the set screw. Tightening against the round shaft can damage the shaft and make removal difficult.
- Handwheel use: The dual-shaft design lets you mount a handwheel on the rear shaft for manual operation when the drivers are powered down. When the motors are energized, they hold position and cannot be moved easily by hand.
- Controller compatibility: P/N 67127 with the 5-pin DIN plug is designed to plug directly into Sherline’s 4-axis driver box, CNC systems, and linear and rotary controllers. P/N 67130 (no plug) is intended for non-Sherline or custom controllers.