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.

Sherline/Acorn CNC Controller
3-week lead time Select your Driver, Spindle Control Isolator Board*, and Encoder Pulley Headstock Mounting options for pricing. Please see the Options tab below for more information on the configuration options. *If you choose not to get the isolator board with your Sherline/Acorn controller at the time of purchase, you will need to send the controller back to us to have the board installed if you want to add it in the future. Email orders@sherline.com for instructions on sending it back. 
From: $817.68 Select options This product has multiple variants. The options may be chosen on the product page
View For Pricing  Select options This product has multiple variants. The options may be chosen on the product page
External Incremental Rotary Encoder
The external encoder works with the Sherline/Acorn CNC Controller equipped with the optional spindle control isolator board (P/N 94310). For use with a Sherline machine, you must have a Headstock Pulley Mounting Kit. Encoder prices vary depending on distributor availability. Contact us by email or phone for a quote. Email: orders@sherline.com Phone: 760-727-5857
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Spindle Control Isolator Board
The spindle control isolator board controls the spindle speed via G-code in the Sherline/Acorn CNC controller. It works in conjunction with an external encoder that is mounted to your machine headstock. If you are purchasing the isolator board to add to an existing Sherline/Acorn controller, you need to send your controller back to us to have the board installed. Contact us by email or phone for further information. Email: orders@sherline.com Phone: 760-727-5857
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View For Pricing  Select options This product has multiple variants. The options may be chosen on the product page
View For Pricing  Select options This product has multiple variants. The options may be chosen on the product page
From: $1,339.34 Select options This product has multiple variants. The options may be chosen on the product page
CNC-Ready Mill Upgrade Kits
UPGRADE NOTICE: If you are converting a manual mill to CNC, you will also need to purchase the Mill CNC Z-Axis Backlash Adjustment Kit, see details below.
From: $108.01 Select options This product has multiple variants. The options may be chosen on the product page
From: $1,512.16 Select options This product has multiple variants. The options may be chosen on the product page
Mill Ball Screw XYZ-Axes Retrofit Kit
4 week lead time When ordering your new Ball Screw Retrofit Kit, you will need to supply the following information for your current machine so we can ensure you receive the correct length of the ball screw for each axis:
From: $2,474.31 Add to cart
Mill Ball Screw XY Axes Retrofit Kit
4 week lead time When ordering your new Ball Screw Retrofit Kit, you will need to supply the following information for your current machine so we can ensure you receive the correct length of the ball screw for each axis:
$1,642.15 Add to cart
Mill Ball Screw Z-Axis Retrofit Kit
4 week lead time When ordering your new Ball Screw Retrofit Kit, you will need to supply the following information for your current machine so we can ensure you receive the correct length of the ball screw for each axis:
$832.68 Add to cart
View For Pricing  Select options This product has multiple variants. The options may be chosen on the product page
View For Pricing  Select options This product has multiple variants. The options may be chosen on the product page
View For Pricing  Select options This product has multiple variants. The options may be chosen on the product page
LinuxCNC Computer System with Driver Box
  • Built-in Driver box (Converts g-code to steps to run DC stepper motors)
  • Output cables for X, Y, Z, and A pre-wired with DIN plugs for stepper motors
  • Keyboard and mouse (you supply the monitor)
  • Processor Speed: 2 GHz or faster
  • RAM: 2 GB
  • Hard Drive: 500 GB
  • Internal drive: DVD-RW
  • External drive: 4 GB USB Flash drive for transferring g-code files
  • Current: Internal switches are set to 110VAC but can be reset for operation with 230 VAC
  • Installed software: Ubuntu 12.04 Linux-based OS with Linux CNC 2.6.11 4-axis CNC software.
  • 90-day warranty on CNC and computer-related components.
Prior to January, 2005, Redhat version 2.xx was installed. From January, 2005 to September, 2009, Debian version 4.xx was installed. Starting in October, 2009 Ubuntu version was installed. Our 6.0 version of Ubuntu with “Lucid” build installed starting February, 2010. Debian wheezy 2017. Current software as of 2018 is Ubuntu 12.04 with Linux CNC 2.6.11 The most up-to-date version of the instructions can be found at CNC 7 Instructions. Instructions for Debian systems purchased between January 1, 2005, and September 17, 2009, can be found at CNC 4 Instructions. For those using a system purchased before January 1, 2005, instructions for the 2.xx Redhat version can be found on the Sherline CNC Instructions web page.
$1,828.18 Add to cart
LinuxCNC Computer System without Driver Box
  • Keyboard and mouse (you supply the monitor)
  • Processor Speed: 2 GHz or faster
  • RAM: 2 GB
  • Hard Drive: 500 GB
  • Internal drive: DVD-RW
  • External drive: 4 GB USB Flash drive for transferring g-code files
  • Current: Internal switches are set to 110VAC but can be reset for operation with 230 VAC
  • Installed software: Ubuntu 12.04 Linux-based OS with Linux CNC 2.6.11 4-axis CNC software.
  • 90-day warranty on CNC and computer-related components.
Prior to January, 2005, Redhat version 2.xx was installed. From January, 2005 to September, 2009, Debian version 4.xx was installed. Starting in October, 2009 Ubuntu version was installed. Our 6.0 version of Ubuntu with “Lucid” build installed starting February, 2010. Debian wheezy 2017. Current software as of 2018 is Ubuntu 12.04 with Linux CNC 2.6.11 The most up-to-date version of the instructions can be found at CNC 7 Instructions. Instructions for Debian systems purchased between January 1, 2005, and September 17, 2009, can be found at CNC 4 Instructions. For those using a system purchased before January 1, 2005, instructions for the 2.xx Redhat version can be found on the Sherline CNC Instructions web page.
$1,036.10 Add to cart
From: $2,728.27 Select options This product has multiple variants. The options may be chosen on the product page