The XoomSpeed SubZero coolant system is a multi-function accessory for Tormach mills, consisting of a custom app for an Android tablet.or phone, a micro-processor based controller with USB and bluetooth (BLE) connectivity and optionally one or more servo modules with up to 4 independently movable coolant nozzles.

To install the Android app, visit the downloads page and select the version you want from there.

The functions provided by the SubZero system, may be grouped as follows

• CNC pendant
  The Android app provides all the functions you would expect from an advanced CNC pendant. Cycle start/stop and feed hold buttons, machine jogging and an array of user programmable buttons to simplify tasks that usually require commands to be typed into the PathPilot MDI.
• Coolant I/O
  There are 4 solid state relays (SSRs) provided, each good for 0.5A at 24Vdc. These can be mapped to any of the coolant modes as required and can be set to pulse when active at user programmable period and duty cycle.
• Extended coolant modes
  The normal use for the SSRs is to provide control outputs for additional coolant modes. The user can choose which output(s) are mapped to which coolant modes and support is included for Fusion360's Air, Mist, Flood and Mist+Flood modes. The outputs can be set to pulse when active, so the Air coolant output can be set to turn on for 0.5s every 3s for as long as air coolant mode is enabled. This is useful for clearing chips when machining materials like delrin.
  Mist and flood modes are controlled by the standard M7 and M8 codes, so require no modification to existing g-code.
  Air and Mist+Flood are set by M7P1 and M7P2 respectively.  The latest version of our Fusion 360 post-processor will generate these codes when your CAM ops specify Fusion's Air or Mist+Flood coolant modes.
• Programmable coolant nozzles
  With the servo module(s), the aim and scan pattern of each nozzle can be programmed separately for each tool in your library. When a program is running, the tool number and coolant mode are automatically tracked to ensure that the correct nozzle is always aimed as programmed for the tool in use.  This is handled by a python plug-in and requires no modifications to your g-code.