
Purpose of the Sherline Mill XYZ Bases
The Sherline ball screw mills can be purchased without the headstock and motor/speed control. This allows owners of other Sherline machines to swap the headstock and motor/speed control from one machine to the ball screw mill in approximately 60 seconds. This package offers a savings compared to the price of our full ball screw mills.
The Axes of Movement of a Sherline 6858 Ball Screw Mill

The table left/right movement is referred to as the X-axis. The table in/out movement is the Y-axis. Headstock up/down movement is referred to as the Z axis. The headstock can also be rotated on its saddle on Sherline mills (#4), the column ram can be moved in and out (#5), and the Z-axis column can be tilted forward and back (#6).
Standard equipment for the 685801 XYZ base:
- 18″ Mill Base
- Electroless nickel/Teflon coated mill saddle
- 15″ Extended Column Bed with nickel/Teflon plating
- Extra-Rigid Column Base
- 18″ Extended Mill Table
- Stepper-motor mounts with high-torque couplings
- The handwheels are included and can be mounted to the end of the stepper motors to maintain manual control when needed.* 2-1/2″ (63mm) adjustable “zero” handwheel on the Z-axis and 2″ (51mm) adjustable “zero” handwheels on the X- and Y-axes. Each handwheel has laser engraved aluminum handwheel collars
*NOTE: CNC-ready machines cannot be operated manually until stepper motors are installed. - Oil reservoirs on the X/Y axes and the Z-axis to help keep critical parts lubricated.
- Brass leadscrew cover that keeps chips off the rear of the Y-axis leadscrew
- Accordion way cover
- Travel: X=13.65″ (347 mm), Y= 11.0″ (279 mm), Z=9.25″ (235 mm)
Travel, X-Axis | 12.80″ (325.1mm) |
---|---|
Travel, Y-Axis | 11.00″ (279 mm) |
Travel, Z-Axis | 9.25″ (235 mm) |
Width Overall | 20.375″ (518 mm) |
Depth Overall | Base footprint: 21.125″ (537 mm); With fully extended brass leadscrew cover: 28.375″ (721 mm) |
Height Overall (Max.) | 26.5″ (673 mm) |
Table size | 2.75″ x 18.00″ (70 x 457 mm) |
Hold-down provision | 2 T-Slots (3 T-Slots with optional 7″ x 13″ tooling plate P/N 3562) |
Movements in addition to X-, Y- and Z-axes |
Headstock rotation (90° left/right), Column pivot (90° Fwd/Bk), Column travel (In/Out) 5.5″ (140 mm) |
Shipping Weight | 72 lb. (32.73 kg) |
Shipping
We do not charge a flat rate for shipping because of the variations in weight for our products. Instead, we charge you what the shipping company charges us. Our website uses a shipping calculator based on the daily rates for USPS and UPS based on the weight and destination of the shipment. You can also have us use your UPS/FedEx account number to charge your shipping. Just enter it in the appropriate box on the checkout page.
Domestic orders are shipped Monday – Friday. Expedited orders must be placed by 9 am PST to ship the same day.
Orders shipping ground have a processing time of 7 working days for domestic orders and 14 working days for international orders. CLICK HERE for more information on our shipping and order policies.
Returns
Most merchandise can be returned within 30 days of the purchase date. A refund will be issued to the original form of payment at the original selling price. View our complete return policy and/or start your return online here.
The MASSO G3 CNC controller, power supply, stepper motors, cable system and optical encoder are sold as a part of our Accu-Pro line of machines and are not available for purchase separately or as an upgrade option to existing machines. For optimal performance, we recommend using the High-Torque Stepper Motors with our Ball Screws.