Staging Plate

4.2.0 Update

Note

This section highlights the changes in 4.2.0 — the remaining sections remain unchanged until further maintenance to OHAI. If information in later sections contradict what is in this section, please consider this section as accurate.

Fid Board Sub-assembly

1. Use press to install 2x cal-fid

2. Apply polymer-tape to the underside of cal-fid-mount. This tape will ensure 2x cal-fid-token are secure during shipment. Ensure the tape is long enough to cover the slot.

3. Insert 2x cal-fid-token into the slot with copper side up

4.2.0 Staging Plate Assembly Instructions

1. Secure cal-fid-mount to staging-plate-offcenter with 2x m4x10mm-socket-head

2. Pull polymer-tape over cal-fid-token slot and secure to the bottom of staging-plate-offcenter

3. Add polymer-tape to underside of discard-bin-mount

4. Secure discard-bin-mount with 2x m4x10mm-socket-head

5. Add discard-bin into discard-bin-mount

6. Use polymer-tape to secure discard-bin to staging-plate-offcenter

7. Insert bottom-camera into bottom-camera-mount. Ensure the position matches the image below

8. Secure bottom-camera to bottom-camera-mount with 4x m2.5x8mm-socket-head

9. Insert bottom-camera-cable and loop through open cavity in bottom-camera-mount

10. Insert zip-tie through channel in bottom-camera-mount

11. Tighten and ensure the head of zip-tie is centered in the cavity. Snip the excess

12. Add ring-light to bottom-light-mount

13. Attach other end of bottom-camera-cable that is labeled bottom-light-sp to ring-light

14. Position bottom-camera assembly and ring-light assembly as shown in the image and bring the two assemblies together

15. Ensure bottom-camera-cable goes through the channel in bottom-light-mount

16. Place bottom-vision-cover over top of the assembly. Ensure the cables go into the cutouts

17. Flip staging-plate and secure bottom-vision-cover assembly with 4x m4x18mm-socket-head. Ensure the location matches the image below

18. Install bottom-vision-cable-clamp and ensure cables go into the channel properly

19. Secure bottom-vision-cable-clamp with 2x m4x10-socket-head

20. Install 2x peek-cable-clamp. Install one in the hole beside bottom-vision-cover skip 6 holes and install the second cable clamp in the 7th hole as shown in the image

All done!

You have successfully assembled a 4.2 staging plate. The guide below has yet to be updated for 4.2 — if any information contridicts this section, consider the 4.2 section accurate.

Install hardware into 3D printed components

• Use an arbor press to insert the given quantities of M3-hex-nut into the following parts:
• 4x for bottom-camera-mount

• 3x for 3x peek-cable-clamp

  Note

  Be sure to change the arbor press tip for the different prints as needed.

  

Removing punch-out from PCB-0003

• Remove the punch-out from center of PCB-0003 with flush cutters

  

  

• Clean up hole with a deburring tool after punch-out has been removed

  

• Clean both sides of PCB-0003 with an IPA-soaked shop rag

Focus the bottom-camera

• Thread the bottom-camera-cable through bottom-camera-cover and connect it

  

• Remove the lens cap from bottom-camera

• Use bottom-camera-focus-jig to pre-focus bottom-camera

• Turn on the light for the jig and attach bottom-camera

  

• Connect the USB cable on bottom-camera-focus-jig to a computer and open its native camera viewing application

• Use Photobooth if on Mac OSX or Cheese if on Linux
• Confirm that the camera feed is running in 720p, sometimes it can launch in 360p or 480p
• Within the camera viewing application, change the selected camera to PnP Bottom to view the camera feed of the bottom-camera

If the listed camera is something other than PnP Bottom, the device may either be incorrectly programmed or mixed up with a top-camera

Please take this as an opportunity to double-check the device name even if the computer switched to the correct camera feed automatically.

• Rotate the camera lens until the live viewport shows the datum board as focused as possible

  

Creating bottom-camera-assembly

• Attach bottom-camera and bottom-camera-cover to bottom-camera-mount with 4x M2.5x8-bolt

  

• Confirm bottom-camera's JST connector is in the correct orientation as indicated below:

  

• Clean bottom-light-mount print by removing any loose stringy plastic with a heat gun and/or razer blade (as needed)

• Install bottom-ring-light into bottom-light-mount

  

Final Assembly

Installing bottom-camera-assembly

It is recommended to wear gloves when handling the staging-plate.

• Attach bottom-camera-assembly onto staging-plate with 4x M3x16-bolt

  

• The JST cable connector found on bottom-ring-light should match the orientation shown below when installed - as close to the Opulo logo as possible and in line with staging-plate column 18

  

• The JST cable connector found on bottom-camera should match the orientation shown below when installed - as close to the Opulo logo as possible

  

Install datum-board and datum-board-mount

• Use four M3x16mm-bolt and 4x M3-hex-nut to secure the datum-board and datum-board-mount to staging-plate on the rear of the bottom-camera, through holes: B18, A19, A21, B22.

• Use a 2.5mm hex wrench and a 5.5mm (6mm if 5.5mm is unavailable) socket wrench to tighten these bolts

• The fisheye calibration pattern should be facing down, and the gold grid lines and fiducial in the center of the Opulo logo facing upwards

  

• Plug bottom-light-harness into bottom-ring-light

• Plug bottom-camera-harness into bottom-camera before securing cable to bottom-camera-mount with a zip-tie

  

Install secondary fiducial

• Use two M3x10-hex-head to attach secondary-fiducial-bracket to staging-plate. Make sure the closed portion of the. bracket is facing the ring-light.

  

• Fasten secondary-fiducial-bracket to staging-plate with two m3-hex-nut.

  

Performing cable management

• Clamp cables in the locations shown below with 3x peek-cable-clamp, 3x m3-hex-nut, and 3x m3x14 bolts

  

• After securing the cables, tie them up with the twist tie from bottom-camera-cable