mycnc:flatbed_correction
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mycnc:flatbed_correction [2019/12/20 12:01] – ivan | mycnc:flatbed_correction [2020/02/18 15:27] – ivan | ||
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This article discusses the flatbed correction feature built into myCNC software which is often useful when the working table is not even or has certain spots which are higher or lower than the reference position. This is especially useful in cases when something like a tangential knife needs to go over the uneven table, with up to a millimeter of play being involved, resulting in a cut that does not actually go through the working material properly. | This article discusses the flatbed correction feature built into myCNC software which is often useful when the working table is not even or has certain spots which are higher or lower than the reference position. This is especially useful in cases when something like a tangential knife needs to go over the uneven table, with up to a millimeter of play being involved, resulting in a cut that does not actually go through the working material properly. | ||
- | In order to account for this, go into **Settings > Config > Technology > Special Purpose > Flatbed Correction**. | + | In order to account for this, flatbed correction is used. |
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+ | The following video goes over the basic process of setting up flatbed correction within myCNC software: | ||
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+ | {{youtube> | ||
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+ | To set up flatbed correction, | ||
The screen presented to you will be the following: | The screen presented to you will be the following: | ||
- | {{: | + | {{: |
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+ | After the setup process has been completed, a table of points in the XY-plane and their Z-positions will be presented on this page. These values can either be recorded by using the AutoMeasure procedure, or by using a sensor and recording each point individually by using the M402 macro. | ||
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+ | Using the AutoMeasure procedure, the operator can set the measurement distances for the X and Y axes as well as the number of points at which the height measurements will be taken for the XY-plane. | ||
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+ | **Note:** Flatbed correction **must be disabled** prior to beginning taking the measurements, | ||
- | First of all, **enable** flatbed correction: | + | The **Auto Measure Procedure** button can be pressed to begin the probing process. |
- | {{: | + | {{: |
- | Next, the table on this settings page presents a number of values in the XY-plane and their z-positions. These values can either | + | //NOTE: If you leave the flatbed correction setting screen while the procedure is running, the measurement program will be paused until you return back to the screen.// |
- | Using the AutoMeasure | + | After the measurement |
- | {{:mycnc:flatbed-update-007-automeasure.png}} | + | //NOTE: The myCNC flatbed |
- | In order to use the M402 macro, move the sensor to the position you want to measure, then press the **Measure (M402) and Save** button. This will lower the sensor down until contact, then lift it back up and record the z-position at which the sensor was triggered. | + | In order to use the M402 macro for manual point measurement, move the sensor to the position you want to measure, then press the **Measure (M402) and Save** button. This will lower the sensor down until contact, then lift it back up and record the z-position at which the sensor was triggered. |
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- | By adding these correction points, myCNC software will use triangulation in order to create | + | By adding these correction points, myCNC software will create |
====M402 macro==== | ====M402 macro==== | ||
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G28.2 Z0 (save current Z into Register1.Z) | G28.2 Z0 (save current Z into Register1.Z) | ||
- | M89 L1 P8 (watch for input(P) to be closed (L1) - EDIT THIS) | + | M88 L1 P15 (watch for input(P) to be closed (L1) - EDIT THIS) |
- | G91 G0 Z -35.000 F 400.0 | + | G91 G0 Z -35.000 F 200 |
(move down, stop if sensor triggered) | (move down, stop if sensor triggered) | ||
- | G91 G0 Z 2.000 F 800.0 | + | G91 G0 Z 2.000 F 400 |
- | M89 L1 P8 (watch for input(P) to be closed (L1) - EDIT THIS) | + | M89 L1 P15 (watch for input(P) to be closed (L1) - EDIT THIS) |
G91 G0 Z -2.000 F 20.0 | G91 G0 Z -2.000 F 20.0 | ||
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</ | </ | ||
- | Here, you have to edit the two lines with the EDIT THIS comments. In the input P, you have to specify the input number for the sensor (set as 8 in this example), and in the L field you have to specify the behaviour that will be interpreted as the sensor being triggered (0 for a normally closed sensor which will be opened when triggered, and 1 for a normally open sensor which will be closed at contact). | + | Here, you have to edit the two lines with the EDIT THIS comments. In the input P, you have to specify the input number for the sensor (set as 15 in this example), and in the L field you have to specify the behaviour that will be interpreted as the sensor being triggered (0 for a normally closed sensor which will be opened when triggered, and 1 for a normally open sensor which will be closed at contact). |
mycnc/flatbed_correction.txt · Last modified: 2022/12/01 11:37 by ivan