Acu-Rite's DRO300 Can Now Control Sinker EDMs
Heidenhain’s Acu-Rite brand has introduced software for its 300-series digital readout (DRO) that now allows users to control a sinker EDM machine. This development broadens the DRO’s use to include most common manual shop machines including mills, lathes, grinders and EDMs.
When the EDM software is loaded into a DRO300 and coupled with an IOB 610 interface box, it enables control through the use of three relay signals. This software is now included on all new multi-purpose DRO300s. For those who already own an Acu-Rite DRO300, v1.3.1 can be downloaded for free on acu-rite.com.
Some key features of the EDM control software include:
- Automatic depth programming, which enables the EDM’s ram to be configured to automatically retract or dwell at the target depth;
- Dwell cycle, wherein the relay holds the Z-axis depth until spark-out occurs;
- Reverse fault detection, which prevents creep out of the bath during a burn cycle; and
- EDM display mode, showing the current ram depth, the maximum depth reached and the target depth simultaneously on the three-axis displays.
For the most part, CNC controls will follow the instructions given in a program to the letter. With the exception of basic syntax (program formatting) mistakes, the CNC control will rarely be able to tell if a mistake has been made.
Properly evaluating machine tool capability requires understanding how the both user and the builder can influence precision.
Though applied for different reasons on different machine types, all forms of compensation allow the CNC user to allow for unpredictable conditions related to tooling.