mycnc:mycnc_pulse_width_setup
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mycnc:mycnc_pulse_width_setup [2019/04/17 12:50] – ivan | mycnc:mycnc_pulse_width_setup [2019/04/17 13:31] – ivan | ||
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- | -===== MyCNC Pulse Width Setup ====== | + | ===== MyCNC Pulse Width Setup ====== |
- | ==== MyCNC Pulse Width elements ==== | ||
*In myCNC software, navigate to **Settings** | *In myCNC software, navigate to **Settings** | ||
*Open the **Hardware** tab | *Open the **Hardware** tab | ||
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====Selecting the Appropriate Pulse Width for your motor==== | ====Selecting the Appropriate Pulse Width for your motor==== | ||
- | A common | + | A common |
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- | Therefore, the pulses have to have both a minimum width, such that the motor (or the particular setting of that motor, as with the Panasonic MINAS A5-series) is able to register pulses that are sent to it, and a maximum width, such that the pulses do not overlap. | + | As such, the pulses have to have both a minimum width, such that the motor (or the particular setting of that motor, as with the Panasonic MINAS A5-series) is able to register pulses that are sent to it, and a maximum width, such that the pulses do not overlap. |
**In order to select such an appropriate pulse width:** | **In order to select such an appropriate pulse width:** | ||
- | *Choose the speed at which your machine will move in **[meters/second]** | + | *Choose the speed at which your machine will move in **[meters / minute]** |
- | *Convert the **[meters/ | + | *Convert the **[meters / minute]** speed with which the machine moves to the number of **[revolutions / second]** of the screw/ |
- | *For example, if the desired **[meters/ | + | *For example, if the desired **[meters / minute]** speed is equal to 5 meters/ |
- | *Locate the minimum **[seconds/ | + | *Locate the minimum **[seconds / step]** value of your step/servo motor (the minimum time it takes the motor to process each individual impulse) |
- | *Using the **[revolutions/ | + | *Using the **[revolutions / second]** value and the minimum allowed **[seconds / step]** value of the motor, calculate how many **[steps / revolution]** the stepper driver will have to make. |
- | *For example, if the **[steps/ | + | *For example, if the minimum allowable pulse width on the motor is 8 μs/step, and the machine will produce 16 revolutions/ |
- | *Using the **[revolutions/ | + | *As discussed earlier, |
- | *For example, if the **[revolutions/second]** value was equal to 16 revolutions/second and the stepper driver | + | *For example, if the **[steps / revolution]** value has been calculated |
- | *The value for the **Pulse Width** in myCNC software must be equal or higher than the actual **[seconds/ | + | *Using the **[revolutions / second]** value and the updated stepper driver **[steps / revolution]** value, calculate the actual **[seconds / step]** value of the motor. This actual **[seconds / step]** value will always be equal or higher than the minimum allowable **[seconds / step]** value of the motor due to selecting a lower **[steps / revolution]** value in the previous steps. |
- | *For example, if the **[seconds/ | + | *For example, if the **[revolutions / second]** value was equal to 16 revolutions/ |
+ | |||
+ | *The value for the **Pulse Width** in myCNC software must be equal or higher than the actual **[seconds / step]** value of the motor. | ||
+ | *For example, if the **[seconds / step]** value was equal to 9.8 μs/step, and an ET6 or an ET7 board was used, 12 μs would be selected from the chart in the **Common Hardware Settings** tab as it is the closest value that's higher than 9.8 μs. | ||
{{: | {{: | ||
*The 12 μs corresponds to Setting 7 in the chart, thus the **Pulse width** value should be set to 7. | *The 12 μs corresponds to Setting 7 in the chart, thus the **Pulse width** value should be set to 7. | ||
+ | | ||
{{: | {{: | ||
*The pulse width setup is now complete. | *The pulse width setup is now complete. |
mycnc/mycnc_pulse_width_setup.txt · Last modified: 2024/01/22 11:05 by ivan