Electronic Thermal Compensation (ETC)
This powerful software feature – standard on Haas machine tools – uses a proprietary algorithm to compensate for the expansion and contraction (due to heating and cooling) of each linear axis.
The ETC algorithm utilizes a model of the lead screw, and estimates heating of the screw based on the distance travelled and the torque applied to the motor. Heat is represented by a thermal coefficient of expansion, and the axis distance is multiplied by the coefficient to get the amount of correction needed.
A real-time clock allows monitoring of in-motion time as well as non-motion time (e.g., lunch, breaks) and compensates accordingly.
Our testing shows about a 4 to 1 reduction in the error associated with average lead screw growth. A series of parameters allows this feature to be implemented on each axis of various models, with some room for fine-tuning.
Keep in mind that ETC does not correct for: thermal growth due to changes in ambient temperature; growth due to part expansion; or growth due to spindle expansion/retraction.
Control Options
- Improve Your Cutting Finish
- Speed Up Your Tapping Cycle
- Operator Checking Questions
- Reduce Energy Consumption
- Add an Extra Axis – the Easy Way
- Tool Life Expectancy
- Advanced Tool Management
- Turn on to Tool Monitoring
- Protect Your Tools
- Material Assistance
- Create Your Own Code
- Tapped Holes in all Directions
- Who Changed the Program?
- Who Changed the Program?
- Programmable Offsets
- Taking the Most Direct Route
- Varying Accuracy
- Smooth Operator
- Cylindrical Mapping
- Perfectly Written?
- Help with Different Languages
- Help with the Decimal Points
- Turning off the lights
- Keeping Everything Together
- Showing Only the Offsets in Use
- Setting 88 to prevent overrides
- Using G-Code for Circular Milling
- Extra Tools
- Inverse Time Feed Mode (G93)
- Helical Motion Enhancement
- Electronic Thermal Compensation (ETC)
- Screen Capture
