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This document covers the regular use and maintenance of the BenchBot Version 3.0 in the semi-field image acquisition application.

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Note

TIPPING RISK. ALWAYS SET AMIGA SPEED TO 3-4 BARS using the Amiga dashboard. Do not operate or test E-Stops at higher speeds. The default setting is extremely fast and can likely cause the BenchBot to fall over and cause injury or death.

Warning

[NCSU ONLY] ONLY THE CARRIAGE MOUNTED (MIDDLE) E-STOP IS OPERATING FULLY

  1. The Right Side E-Stop (next to the Amiga dashboard) is not stopping the Amiga motors which can move any direction in the Y-plane.

  2. The Left Side E-Stop (near the WiFi dish) is not connected to anything.

  3. The E-Stop on the “Manual Control” tab on the BenchBot App does not function.

This is a hard E-Stop to reach, especially during traversal as the Z-Axis is set to the highest point currently for imaging.

This is a current error as of 7/10/2024.

Warning

BenchBot App E-STOP NOT WORKING: The E-Stop on the “Manual Control” tab on the BenchBot App does not function properly.

This is a current error as of 7/2/2024.

Note

Battery Fire Hazard: Farm-NG notified us of a battery fire. As of 7/29/24, here are some of their steps to mitigate risk/further damage if a battery does catch on fire.

  1. Whenever possible, avoid charging the Amiga batteries indoors and near flammable materials.

  2. Take steps to avoid further damage in the unlikely event of a fire. 

  3. If you do not use and charge the Amiga and its batteries on a regular basis, we recommend charging each battery for 2 hours every 2 months to prevent over-discharge.

  4. Use only the chargers provided by Farm-NG ( 2A and 5A models).

  5. Please review the warnings included on the Battery.

This is a current error as of 7/29/2024.

Info

PAUSE ERROR: Pausing can cause the Brain to lose tracking of the camera and all axes of the BenchBot to stop moving. Restarting the BenchBot app on the Brain may restart the axes motion, but it will not recover accurate tracking of the camera. Please avoid pausing the BenchBot if possible until resolved.

This is a current error as of 6/28/2024.

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Hardware Setup

What needs to be done before the system can be powered on and used.

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Info

Before moving anything, make sure you have enough room to safely operate, so that even if you accidentally move the BenchBot in the wrong direction or if you press the movement buttons a few too many times, it will not go off course or hit something.

Note

If any E-Stops are not working, be sure to alert others who may be in the vicinity during operation. And those who may use/work on the BenchBot in the future.

Starting BenchBot Operation:

  1. On the Dashboard, click start.

  2. On the 1st tab on the left sidebar: Set speed limit to 3 or 4 bars.

    1. MUST KEEP IT LOW or else the bot MAY FALL OVER. THE DEFAULT SETTING IS TOO HIGH.

  3. Do two preliminary E-Stop tests.

    1. Test that E-Stops are preventing Pendant-controlled movement from beginning:

      1. Press in an E-Stop.

        • Do not press two E-Stops in at once. We are testing each one to make sure it works individually.

      2. Attempt to move the BenchBot forward or backwards using the Pendant

        • Make sure it is a direction where you have room, in case anything goes wrong. The BenchBot should NOT move.

      3. If this test fails, that E-Stop is faulty and this issue should be resolved.

      4. If this test passes, clear that E-Stop and repeat the test for other E-Stops.

    2. Test that E-Stops are preventing Pendant-controlled movement that has already begun:

      1. Using the pendant, move the BenchBot in a direction where you have room.

      2. As you are moving it, have someone press in an E-Stop. The BenchBot should stop.

      3. Clear the E-Stop and repeat the test for other E-Stops.

  4. On the Amiga dashboard, click on the 3rd tab on the left sidebar. Turn on auto-control.

    1. The icon will turn from gray to orange/yellow. Now the Amiga is ready to be controlled by the BenchBot App on the BenchBot Brain.

    2. Auto-control may reset each time an E-Stop is used.

  5. On the Brain, click on BenchBot App on the Apps screen.

  6. Start on the 1st tab: Manual Control tab.

  7. We will check for 5 things to be working properly (X axis, Y axis, Z axis, image capture, and the Emergency Stops (E-Stops)).

    1. Test the app-controlled X-axis movement a small amount: add 10cm, then click +X (positive X). Then click -X to check the negative direction.

      1. Note: Getting very close to the end sensor may cause problems, so you may want to move it a few centimeters away.

      2. Now test each E-Stop for the X-axis.

        1. Move the X-axis a decent distance like 50cm.

        2. Press in an E-Stop as it moves. It should stop.

          1. It should stop because of the E-Stop, not due to an error that has been found where sometimes Z-axis movement will stop short of the specified distance, or because you did not press the E-Stop in-time.

        3. Then clear the E-Stop and repeat the test on each E-Stop.

    2. Test the app-controlled Y-axis movement. Do a small amount like 20-30cm. Too small of a Y-axis movement will not work well. Check both directions.

      1. Now test each E-Stop for the Y-axis.

        1. Move the Y-axis a decent distance like 50cm.

        2. Press in an E-Stop as it moves. It should stop.

        3. Then clear the E-Stop and repeat the test on each E-Stop.

    3. Test the app-controlled Z-axis movement as well at a small amount like 5cm or 10cm. Check both directions.

      1. Now test each E-Stop for the Z-axis.

        1. Move the Z-axis a decent distance like 50cm

        2. Press in an E-Stop as it moves. It should stop.

        3. Then clear the E-Stop and repeat the test on each E-Stop.

    4. Finally done testing E-Stops. Now we know that Amiga Pendant-controlled movement (any direction in the Y-plane) and BenchBot App-controlled movement (X, Y, and Z axis) are stopped by each E-Stop individually.

    5. Check the camera by clicking “Take Image.” The flash should go off and the image should appear on screen in a few seconds.

      1. Check that the image exposure looks correct.

  8. Make sure the X-axis, Y-axis and Z-axis are in correct locations as well before beginning.

    1. The Z-axis should be adjusted to where the camera lens is 1.8m above the dirt in the pots. Bring a measuring tape if needed.

  9. Skip over the 2nd tab.

  10. Go to the 3rd tab “Species Map”

    1. Adding more rows of species will add them on top of the previous rows. So plan accordingly by adding rows that are closest first and move further out.

      1. You can also add empty rows (use the “none” selection for species).

    2. Set pots per row, row spacing (Y-Axis), pot spacing (X-axis) and other settings.

    3. Click add species and the map will update.

    4. On the map, you can make some individual changes to pots.

      1. UNDO only works for entire rows, not individual pot actions.

    5. Verify everything by swiping and checking the screen.

    6. Click save to save map. “Species map saved!” will appear on screen.

  11. Go to 4th tab “Traversal”

    1. The map is shown in its final version on the right. It is uneditable on this screen.

    2. STARTING TRAVERSAL:

      1. Before starting, confirm there are no errors on the dashboard, that auto control is ready, and the speed is still 3-4 bars.

      2. Click Start on the traversal tab.

      3. Text logs will begin appearing. Images will show as they are taken on the bottom and on the map. If there are errors, it will show on the map.

      4. Watch and listen to make sure the bot is operating normally as it moves across the X-axis and traverses for the first time in the Y-axis.

    3. DURING TRAVERSAL:

      1. Make sure to check the bot every few minutes. Setting a timer may help. You may need to make sure the bot is not going off-course (to the left, right, or too far forward when the bot is almost complete with the run for the day) or that there are no errors.

      2. Check that the camera is taking photos (it will appear on screen) and flash is working.

        1. When capturing images the user should inspect a test image collected at the time of image acquisition, and make change to the aperture F10-F13 to make sure we get an appropriate exposure.

        2. The image should also be inspected to make sure that autofocus and the flash is working as intended.

    4. PAUSING:

      1. The bot will finish taking its last action before pausing.

      2. To confirm the bot is paused, after clicking pause, the log will show “Traversal paused” and the corner will show it is paused. 

      3. Clicking start after pause will start from where it left off.

    5. STOPPING:

      1. Stop will take some time like the pause button to finish the last action.

    6. LEFT AND RIGHT NUDGES:

      1. Left and right will provide small directional correction when the BenchBot is a bit off. 

      2. It will only take effect when the Y-axis is moving next. You can confirm that the left nudge was registered by looking at the logs. 

      3. No matter how many times you click, it will only nudge a single time. 

      4. If accidentally clicked left instead of right, just click right and it will move to the right (it acts according to the last selection). 

      5. However, if left or right is clicked, it cannot be deselected. The bot will nudge. In the future it will be updated.

    7. EXITING:

      1. Click exit to launcher. 

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