The Sherline Mill & Lathe CNC Upgrade w/ High-Torque Stepper Motors is designed for individuals who wish to utilize their own computer and software with a Sherline CNC Machine Shop Package. This upgrade kit facilitates the integration of personal computing systems by providing essential components such as a 4-axis driver box, connecting cables, a power supply, and five high-torque stepper motors. These motors, which share the NEMA #23 frame with standard stepper motors, offer over 75% more torque, enhancing the performance of CNC operations.
The package includes a 4-axis driver box and a power supply, along with a 25-pin parallel cable for connecting the driver box to a computer's printer port. The stepper motors are designed to be mounted on the crosslide and leadscrew of a Sherline CNC-ready lathe, with X and Z cables linking the driver box to the motors. Users are required to supply their own computer, monitor, and control software to complete the setup.
The included software is Linux-based, featuring LinuxCNC (formerly EMC), which is provided on a DVD-ROM. This software is optimized for CNC operations, and users are encouraged to ensure their computer meets the minimum specifications for installation and operation. The system is compatible with computers that have a processor speed of at least 800 MHz, 512 MB of RAM, a 20 GB hard drive, and a 25-pin parallel port. It is important to note that laptop computers are not recommended for this setup.
For those interested in developing their own CNC systems, the Sherline driver box is available for OEM purposes. This allows manufacturers to assemble custom CNC packages with ease, utilizing Sherline's pre-wired stepper motors. The driver box also provides ample space for branding and company information.
Note: A 25-wire parallel port is required for optimal CNC operation, as a 2-wire serial USB port cannot transmit data to multiple axes quickly enough to ensure glitch-free performance.
1x Driver box with 4 motor cables
1x 3.7 amp, 24-volt power supply with cord
1x 25-pin parallel cable
1x 2 CD set with Linux/EMC2, utilities, and instructions
If you are not satisfied with a product purchased from the Site, you may request a return within 30 days from the delivery date, unless the product is listed under the Return Exceptions below or is subject to specific return conditions noted on the product page.
This return policy also applies, as a minimum standard, to products sold and fulfilled by third-party vendors through the Marketplace.
Returns under this policy concern non-defective products. In the case of a confirmed manufacturing defect, remedies are handled under the Warranty terms, at the Vendor's discretion. See the Warranty section.
Return Conditions
To qualify for a refund under the 30-day return policy, all of the following conditions must be met:
A valid Return Authorization (RA) number must be obtained prior to returning the product. Returns without an RA number will be refused.
The RA number is valid for 30 days. The returned item must be received within that period.
The RA number must be included with the return.
Products must be returned in unused, unmodified condition (e.g., no scratches, alterations, missing parts, or signs of installation/use) and in their original packaging, suitable for resale.
Shipping fees are non-refundable. Return shipping costs are the responsibility of the customer, except in cases of a product confirmed defective through RobotShop's troubleshooting process or of a verified shipping error by RobotShop.
Refunds are processed within 7 days after receipt and inspection of the returned item.
A $100 cleaning fee may apply to domestic robots returned in used or unclean condition.
A 20% restocking fee may apply to large-quantity returns of items ordered specifically for the customer from the manufacturer or not part of RobotShop's standard inventory.
Return Exceptions
The following products are not eligible for return or refund under this policy:
Used, damaged, or modified products — Items that show signs of use, wear, or alteration, making them unsuitable for resale.
Consumables — Use and wear-and-tear components, altered or depleted through use (e.g., batteries, belts, brushes, gears, filament, tires, disposable bags, lubricants, greases, waxes, etc.). Not eligible for return once opened or used.
Perishables — Goods liable to deteriorate or expire rapidly. Not eligible for return.
Sealed goods (health or hygiene) — Items sealed for health-protection or hygiene reasons (e.g., masks, gloves, odor-absorbing products). Not eligible for return once unsealed.
Build-it-yourself products and items requiring customer assembly — Including robots & kits, robot parts, and other products requiring assembly or soldering. Not eligible for return once assembled, soldered, or installed.
Digital Goods, Software, and Apps — Final sale only, due to licensing restrictions.
Clearance Items — Products identified as clearance or final sale, including end-of-life or discontinued items.
Custom-made, personalized, or special-order items — Products manufactured, configured, adapted, or built to the customer's own specifications and requirements.
On-Demand Items — Standard catalogue products not stocked by RobotShop and ordered specifically to fulfill a customer request.
While the same return policy applies, these orders require a separate contact process for returns.
RobotShop Fulfilled Orders → submit a support ticket from your account under My Support Tickets.
Marketplace Vendor Orders → submit a ticket from your account under My Marketplace Tickets to contact the vendor directly.
Note: Marketplace vendor products are normally labelled with SKUs starting with RM, and identified on the product page with the mention "Sold and fulfilled by [Vendor Name]".
