Sherline 3C 2-Speed Encoder Pulley Mounting Kit for Acorn CNC Control

This External Encoder Pulley Mounting Kit is designed for Acorn CNC Control users seeking a controller upgrade. It's compatible with Sherline/Acorn CNC Controllers equipped with the optional spindle control isolator board (P/N 94310). Users with a Sherline Linux PC or a 4-axis driver box can select a kit that fits their headstock (standard M1*, 9/16, ER-16, or 3C). The kit includes a main spindle pulley with varying speed and torque options, depending on the headstock type. It also comes with a Lever Collet Closer, except for P/N 9406. The headstock mounting hardware is universal. You can order the kit without an encoder, selecting 'None' in the Encoder Option dropdown. For self-supplied encoders, consider P/N 67112 (Encoder Mounting Plate) and P/N 67113 (Encoder to Cog Pulley Shaft Adapter), which may require modification based on your encoder's specifications.

• Introduction: External Encoder Pulley Mounting Kit for Acorn CNC Control
• Compatibility: External encoder works with Sherline/Acorn CNC Controller (with optional spindle control isolator board P/N 94310). Suitable for customers upgrading their current CNC machine with a Sherline Linux PC or 4-axis driver box
• *Note: Standard M1 headstock pulley mounting kit fits 9/16 and ER-16 headstocks
• Encoder Pulley Headstock Mounting Kit Options
• P/N 9402: Compatible with standard Morse #1, 9/16, and ER-16 headstocks. Features one high-speed pulley groove, usable with Standard Lever Collet Closer
• P/N 9404: Designed for 3C headstock. Offers high-speed and low-speed (high-torque) pulley grooves, compatible with 3C Lever Collet Closer
• P/N 9406: Compatible with standard Morse #1, 9/16, and ER-16 headstocks. Features high-speed and low-speed (high-torque) pulley grooves, but not usable with Lever Collet Closer
• **Note: Headstock mounting hardware is uniform across all encoder pulley options (refer to page 9 of 9402 instructions)
• Ordering without Encoder: Purchase Encoder Mounting Kit and Pulleys without an encoder, select 'None' in Encoder Option dropdown
• For self-supplied encoder users: Two key components to consider
• P/N 67112: Encoder Mounting Plate - Compatible with our supplied encoder. Downloadable PDF shows mounting hole dimensions. Modification may be needed for differently sized encoders
• P/N 67113: Encoder to Cog Pulley Shaft Adapter - Our encoder has a 6 mm diameter shaft. Modification may be required for differently sized encoder shafts