Step 1: Calculator
The calculator can be accessed pressing CALC on the keyboard. AFTER hitting CALC select the softkey STANDARD/TRIG. Then use the keyboard to input numbers and operators (e.g. addition, subtraction, etc.) like a normal calculator.
On this model, the trick is to remember to hit the "STANDARD/TRIG" button to access the calculator. It is a time saver.
Step 2: Cutting Speed
1) Enter the diameter of the mill your using.
2) Enter the surface speed. (If it is not known, select the help screen, and a list of common materials with the appropriate surface speeds are given).
3) Press enter and the calculator will determine the appropriate RPM setting.
Step 3: Table of Drill Index
Step 4: Datum References - Set the Mill to Read 0,0 at the Center of Your Part.
1) Place the part in the mill.
2) Place the edge finder in the mill collet.
3) Select the drill bit icon to bring up the tool menu.
4) Select the correct tool from the tool menu by using the arrow keys to highlight the appropriate tool and push the USE TOOL softkey. Make sure it has the correct diameter. This is an important point. If the diameter of the edge finder is incorrect, the datum will be off. If the correct edge finder tool is not listed, simply follow the prompts to add a new tool making sure to enter the appropriate diameter of the edge finder that your using.
5) After selecting the tool, select the datum key. It is the key with the axis icon.
6) Select the PROBE soft key and select PROBE again.
7) Select CENTER LINE soft key.
8) Using the X-axis only, move to the edge then press teach.
9) Move to the opposite side and press teach.
10) Repeat the steps for the y-axis.
When complete you will now have a datum axis (0,0) at the part's center.
This is a VERY useful function when you have sketches or drawings that your using to make the part.
Step 5: Conclusions
* Do calculations using the "STANDARD/TRIG" calculator.
* Determine turning speeds of a known material using the RPM on the calculator
* Determine drill diameters using look up materiel in the reference section of HELP.
* Easily establish an intuitive datum axis that sets the center of the part at 0,0.
This DRO has functionality that I didn't know existed at first. Using its embedded help files has allowed me to leave some of my heavier reference books at home and more importantly set up coordinates that are intuitive and help to reduce errors.