MDF Rose Engine 2.0

Main

One

Ind

Mov

Sync

Rec

Grk

Geo

. . .

Used to indicate the direction for the movement on the axis. Movement will continue for Distance set and then stop and wait for another move instruction, either repeating move or returning to origin.

Used to stop the motion of the stepper motor.

Used to return the spindle or the selected axis to the start point of the previous operation.

Touch Config on the screen image above to see the details for this screen.

This is used to display or edit the configuration settings for the MaxSpeed and the Acceleration for the respective stepper motors.

Move Screen

Purpose: This screen allows for movement along the Z or X Axis. The movement is for a specific distance and direction.

This movement could be used:

To cut a flute (or other element) for a specific length along Z Axis, or

To move a specific distance along the Z axis, facilitating ease in producing a rose engine basket weave (or other repeating design element) on the cylindrical surface of the workpiece

^Z₁

₂

To cut on the end face of a cylinder (if set up to drive the X Axis), or

Plunge in and out of cylindrical surface to do index work (if set up for X Axis)

^X₁

₂

Rotate a spherical slide (on the B axis, when it is set to Linear on the B Preferences page)

^B₁

₂

Each of the 3 axes can have 2 pre-defined values (aka, pre-sets), allowing the ornamental turner to easily repeat a prior setup.

Count

Tracks the number of moves.

Distance

This sets amount of movement along Z or X Axis and is controlled by the Preferences Screen for Distance/360.

B Radius

This is the distance from the center of rotation to the location where the force is applied to drive the rotation.

This field is only visible when moving on the B axis.

Speed

The controls on the right side of the screen are for controlling the respective stepper motor's speed and acceleration.

To change the Max Speed, touch the number, and you will be presented with the Number Pad Screen.

The slider is a red bar that can be moved up to increase the speed, or down to decrease it. The percentage shown in the bar (71%) shows the percentage of the Max Speed at which the stepper motor is set to run.

There is a slider for the stepper motor on each axis, and they operate independently. The selected axis and memory uses the slider value shown.

The top number is the max speed for the respective axis' stepper motor. This is measured in pulses / second. The MDF Rose Engine 2.0 are set to 6,400 pulses / revolution, so a max speed of 639 would equate to \[ \begin{align} MaxRPM & = \frac{639 \, \frac{\mathrm{pulses}}{\mathrm{sec}} \times \, 60 \, \frac{\mathrm{sec}}{\mathrm{min}}} {6,400 \, \frac{\mathrm{pulses}}{\mathrm{rev}}} \\ & = 6.0 \, \mathrm{RPM} \end{align} \]

Thusly, at 71%,the motor's speed is \[ \begin{align} RPM & = MaxRPM \times \, 0.96 \\ & = 4.3 \, \mathrm{RPM} \end{align} \]

And if the lead screw has a pitch of 2mm and 4 starts, it will move 8mm per revolution. At the set speed, this is \[ \begin{align} Movement Speed & = RPM \times \, 8 \frac{\mathrm{mm}}{\mathrm{rev}} \\ & = 34.4 \, \frac{\mathrm{mm}}{\mathrm{min}} \end{align} \]

For those who prefer the Imperial measurements, this is \[ \begin{align} Movement Speed & = 1.35 \, \frac{\mathrm{inches}}{\mathrm{min}} \\ & = 0.0226 \, \frac{\mathrm{inches}}{\mathrm{sec}} \end{align} \]

Acceleration

The bottom number (541) is the acceleration for the stepper motor.

To change this value, touch the number, and you will be presented with the Number Pad Screen.

Limit Switches

Limit switches cannot be used with this function. They can only be used from the Main Screen or One Screen.

Specific Axis Notes

Axis	Comments
Spindle	Movement continues until the identified movement distance is completed, or the stop button (shown to the right) is used.
Z	Movement on this axis is the same as for the spindle.
X	Movement on this axis is the same as for the spindle.
B	The fields on this screen are used with the fields and settings on the B Axis Configuration screen to calculate how long to run the stepper motor to achieve the desired rotation. Movement on this axis is the same as for the spindle.