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HD II Tabletop Manual
NK105G2
Note: The 4th axis on the Techno HDII Tabletop machine is not a true 4th axis. You can only use this to do “wrap-
ping” tool paths. This means that the file is designed as a regular, flat, 3-axis file,
which is scaled so that the width matches the circumference of round stock. Then, instead of
cutting flat, the rotary is substituted for the X-axis and the cut follows the circumference of the stock, as if it is
being “wrapped” around it.
To change from normal 3-axis operation to rotary operation, you must change some settings in the controller:
1. Press the menu button on the keypad. Go to and press OK to select “5. MFR Param”. The
password is 33587550.
2. Go to and press OK to select “3. Pulse Equiv”. Make note of the X-axis value, it should be
0.0031250.
3. Calculate the new pulse equivalent value based on the diameter of the cylindrical stock
being used through the following equation:
Rotary Pulse Equivalent = (25.4 * π * D) / 80,000
Where D is the diameter of the rotary stock in inches.
4. Enter the calculated value for Rotary Pulse Equivalent in the location for X under Pulse
Equiv. To input a decimal number, please press 0 (zero) first, then the button for the
decimal point and then the numbers.
5. Exit the menu and restart the machine. The new settings will now be applied.
6. Now jog to your starting point and set your X and Y origin. This position should be above the
rotary part. Note: The X-axis will most likely move at a different speed than normal and the
coordinates will not look right.
7. Flip the switch in the front of the machine into Rotary mode.
8. Run your part
To revert back to normal 3-axis operation, follow the first two steps and then put the original
value, 0.0031250, into the X-axis pulse equivalent variable, then reboot the machine to apply the
changes.
USING THE 4TH AXIS ON THE TECHNO HD II Tabletop TABLETOP MACHINES:
5. MFR Param
3. Pulse equiv
Notes On the G-code File
If a part requires multiple tools, it is best to output a different file for each part.
If the G-code file references a tool number higher than T10, then the controller will give an
error at the start of the file. M6 T1 to M6 T10 are allowed.
In general it is best to remove T commands by telling the CAM package that the machine is
not a tool changer machine, or insuring that the Tool number does not exceed 10.
G92 is the Axis presetting command, when this command is encountered in the G-code file
the XYZ zero position is set at the position the machine is in at that time.
In general it is best to remove this from the G-code file, or if it is in the G-code file, make sure
the machine is at the origin before you press start.
The controller will recognise G54 to G59 offset commands.
