1 <html devsite> 2 <head> 3 <title>ITS-in-a-Box Assembly</title> 4 <meta name="project_path" value="/_project.yaml" /> 5 <meta name="book_path" value="/_book.yaml" /> 6 </head> 7 <body> 8 <!-- 9 Copyright 2017 The Android Open Source Project 10 11 Licensed under the Apache License, Version 2.0 (the "License"); 12 you may not use this file except in compliance with the License. 13 You may obtain a copy of the License at 14 15 http://www.apache.org/licenses/LICENSE-2.0 16 17 Unless required by applicable law or agreed to in writing, software 18 distributed under the License is distributed on an "AS IS" BASIS, 19 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 20 See the License for the specific language governing permissions and 21 limitations under the License. 22 --> 23 24 <p>ITS-in-a-box consists of a plastic box that is laser cut from computer-aided 25 design (CAD) drawings, a chart tablet, and a device under test (DUT). This page 26 provides step-by-step instructions for assembling the ITS-in-a-box.</p> 27 28 <p><img src=images/camera_iab_cad.png></p> 29 <p class=caption><strong>Figure 1</strong>. CAD image for ITS-in-a-box.</p> 30 31 <h2>Required tools</h2> 32 <p>Before getting started, ensure you have 33 <a href="camera_its_iab_tech_drawings.zip">downloaded the technical 34 drawings</a> for the ITS-in-a box and have the following tools available:</p> 35 <ul> 36 <li>Phillips head screwdriver</li> 37 <li>Pliers</li> 38 <li>Exacto knife</li> 39 <li>Wire cutters or scissors (optional)</li> 40 </ul> 41 42 <h2 id=lighting>Step 1: Lighting</h2> 43 <p>To assemble the ITS-in-a-box lighting component:</p> 44 45 <ol> 46 <li>Gather the lighting hardware shown in Figure 2: 47 <br><img src=images/camera_iab_light_assembly_parts.png width="50%"><br> 48 <strong>Figure 2</strong>. Light assembly parts.<br><br> 49 Hardware includes LED light bars, plastic light baffles, plastic light mounts, 50 metal light clips included in the LED lighting kit, and four 6-32 screws with 51 acorn head nuts.</li> 52 <li>Place LED light bars in the mounts with lights pointing down and towards 53 the table, as shown in Figure 3 (left side): 54 <br><img src=images/camera_iab_light_bar.png width="50%"><br> 55 <strong>Figure 3</strong>. Close-up of light bars with lights facing down 56 and screws threaded through clips.<br><br> 57 Thread the screws through the light clips using a screwdriver and while holding 58 the metal clip. The screw head should be be on the inside of the C shape of the 59 light clip as shown in Figure 3 (right side). Threading the screws requires 60 pressure as the fit is tight.</li> 61 <li>Bolt the clips to the plastic baffles as shown in Figure 4: 62 <br><img src=images/camera_iab_light_baffles.png width="50%"><br> 63 <strong>Figure 4</strong>. Light baffles with clips attached (acorn nuts are on 64 the side of the plastic not shown).</li> 65 <li>Assemble the lights by snapping the baffles to the LED light backs with the 66 clips. 67 <br><img src=images/camera_iab_light_assembled.png width="50%"><br> 68 <strong>Figure 5</strong>. Assembled lights.<br><br> 69 The LED lights should point down and the plastic should form a back to the light 70 to block the shiny, reflective back of the LED light bar.</li> 71 </ol> 72 73 <h2 id=phone-mount>Step 2: Phone mounts</h2> 74 <p>To assemble phone mounts:</p> 75 76 <ol> 77 <li>Gather the phone mount hardware shown in Figure 6: 78 <br><img src=images/camera_iab_phone_mount_parts.png width="50%"><br> 79 <strong>Figure 6</strong>. Phone mount assembly parts.<br><br> 80 Hardware includes two aluminum phone trays, two plungers, two rubber tips, and 81 four 8-32 pan-head screws.</li> 82 <li>Cut the rubber tips short enough to not interfere with plunger operation 83 (roughly in half), then use the rubber tips to cover the plungers.</li> 84 <li>Assemble the phone mounts using pan-head screws to attach the plunger 85 mechanisms to the aluminum trays. 86 <br><img src=images/camera_iab_phone_mount_assembled.png width="50%"><br> 87 <strong>Figure 7</strong>. Assembled phone mounts.<br><br> 88 Ensure the screws do not protrude beyond the plunger in the retracted or 89 extended plunger position.</li> 90 </ol> 91 92 <h2 id=phone-mount>Step 3: Aperture plate</h2> 93 <p>To assemble the front aperture plate:</p> 94 <ol> 95 <li>Gather the front aperture plate hardware shown in Figure 8: 96 <br><img src=images/camera_iab_front_plate_parts.png width="50%"><br> 97 <strong>Figure 8</strong>. Front aperture plate assembly parts (front plate 98 top has the narrower space from slots for tabs to edge).<br><br> 99 Hardware includes four short nylon screws (provided in the ITS-in-a-box kit) and 100 eight washers (required to keep the screws from protruding through the back of 101 the plastic plate).</li> 102 <li>Add phone mounts to the front square aperture plate as shown in Figure 9: 103 <br><img src=images/camera_iab_front_plate_assembled.jpg width="50%"><br> 104 <strong>Figure 9</strong>. Assembled front plate, phone mounts in middle 105 position.</li> 106 </ol> 107 108 109 <h2 id=tablet-holder>Step 4: Tablet holder</h2> 110 <p>To assemble the tablet holder:</p> 111 112 <ol> 113 <li>Gather the tablet holder parts shown in Figure 10: 114 <br><img src=images/camera_iab_tab_holder_parts.png width="50%"><br> 115 <strong>Figure 10</strong>. Tablet holder space assembly parts.</li> 116 117 <li>Attach the spacer bars to the back of the tablet holder by threading a 118 nylon screw into the hole at the bottom-left or bottom-right of the tablet 119 holder (the screw threads properly in only one direction).</li> 120 121 <li>Mount the spacers on the opposite side of the nylon screw as shown in Figure 122 11: 123 <br><img src=images/camera_iab_tablet_spacer_detail.jpg width="50%"><br> 124 <strong>Figure 11</strong>. Tablet holder, location of plastic spacers and 125 nylon screw.</li> 126 127 <li>Assemble the tablet holder with the screw head in the counter-drilled 128 plastic, then assemble the remaining pieces as shown in Figure 12. 129 <br><img src=images/camera_iab_tab_holder_spacer.png width="50%"><br> 130 <strong>Figure 12</strong>. Assembled tablet holder spacer (washers account for 131 thickness variations in the plastic).</li> 132 133 <li>Gather the tablet plunger parts as shown in Figure 13: 134 <br><img src=images/camera_iab_plunger_parts.png width="50%"><br> 135 <strong>Figure 13</strong>. Tablet plunger parts with plastic tips cut 136 (later designs have only one plunger in the center).</li> 137 138 <li>Cut the plastic tips to correct length and use the tips to cover the 139 plunger heads.</li> 140 141 <li>Attach plungers to the plastic, placing the acorn nuts on the outside to 142 ensure minimum clearance on the inside for the tablet (and to prevent 143 interference with plunger operation.</li> 144 145 <li>Connect the plunger(s) with the screw heads facing the box as shown in 146 Figure 14: 147 <br><img src=images/camera_iab_tabholder_assembled.png width="50%"><br> 148 <strong>Figure 14</strong>. Assembled tablet holder (acorn nuts face away 149 from back panel of box).<br><br> 150 All acorn nuts are on the same side of the tablet holder to maximize clearance 151 for the tablet.</li> 152 </ol> 153 154 <h2 id=box-assembly>Step 5: Assemble box</h2> 155 <p>To assemble the box:</p> 156 <ol> 157 <li>Place the front panel with the circular aperture flat on the table, inside 158 facing up.</li> 159 <li>Connect the front and back walls by inserting tabs into slots as shown in 160 Figure 15: 161 <br><img src=images/camera_iab_top_bottom_placed.png width="50%"><br> 162 <strong>Figure 15</strong>. Top and bottom attached to front (as seen from 163 right side).<br><br> 164 Position the front so the chamfered side of the circular aperture is on the 165 inside of the box. The front of the bottom can be identified by the small hole 166 for the power cord box exit (out of the field of view). The plastic hooks for 167 the sides should be pointed in the same direction.</li> 168 <li>Attach the back to the top and bottom as shown in Figure 16: 169 <br><img src=images/camera_iab_back_no_sides.jpg width="50%"><br> 170 <strong>Figure 16</strong>. Back attached, no sides.<br><br> 171 Push the back onto the tabs, then slide the back to the right (when facing the 172 back of the box) to fit under the hooked tabs.</li></ol> 173 174 175 <h2 id=light-install>Step 6: Install lights</h2> 176 <p>To install the lights:</p> 177 <ol> 178 <li>Place lights in the assembled box as shown in Figure 17: 179 <br><img src=images/camera_iab_light_installed.jpg width="50%"><br> 180 <strong>Figure 17</strong>. Proper light placement (back removed).<br><br> 181 Ensure lights are pointed in the right direction (towards the top and bottom and 182 towards the front of the box).</li> 183 <li>Secure lights by squeezing the pin into the small hole on the rectangular 184 tab that extends through the slot in the top/bottom, as shown in Figure 18: 185 <br><img src=images/camera_iab_pin_led_mount_details.png width="50%"><br> 186 <strong>Figure 18</strong>. Detail of inserted pin in LED mount tab on outside 187 of box.<br><br> 188 Squeezing of the pins is best done with a pair of pliers using gentle pressure; 189 you should feel a little give in the plastic as the pins are squeezed in place. 190 Insert the pins for both the bottom and top light sets. As the pins are small 191 and easy to drop, it is easiest to insert them to the bottom with the box 192 upside down.</li> 193 <li>Attach the power cord to the lower light bar as shown in Figure 19: 194 <br><img src=images/camera_iab_light_cord.jpg width="50%"><br> 195 <strong>Figure 19</strong>. Detail of lighting power cord.<br><br> 196 Thread the power cord through the hole in lower-front-right. The power cord has 197 different connectors at each end: The narrow connector fits to the LED light bar 198 and the larger connector fits to the power adaptor.</li> 199 <li>To prevent the power cord from pulling on the light assembly, use a zip tie 200 to secure the power cord to bottom of box as shown in Figure 20: 201 <br><img src=images/camera_iab_light_cord_secured.jpg width="50%"><br> 202 <strong>Figure 20</strong>. Power cord zip tie attachment on bottom of box 203 (shown on its side); trim ties as necessary.</li> 204 <li>Wire the top lights to the bottom lights on the left side and secure the 205 cable to the front of the box. Some drawings show the cable secured on side of 206 box, but it is easier to wire them to front corner as shown in Figure 21: 207 <br><img src=images/camera_iab_light_cord_zip.jpg width="50%"><br> 208 <strong>Figure 21</strong>. Detail of light cord anchored out of field of 209 view.</li> 210 </ol> 211 212 <h2 id=sides-holder>Step 7: Attach sides, tablet holder, and handles</h2> 213 <p>To attach the box sides, tablet holder, and handles with locking mechanism:</p> 214 <ol> 215 <li>Snap the right panel into place by pushing and sliding it upwards. The 216 bottom of the panel should be flush with the bottom of the front and back panels 217 as shown in Figure 22: 218 <br><img src=images/camera_iab_right_side_placed.jpg width="50%"><br> 219 <strong>Figure 22</strong>. Right side panel in place (viewed from back).</li> 220 <li>Place assembled tablet holder in right tabs as shown in Figure 23: 221 <br><img src=images/camera_iab_tabholder_inserted.jpg width="50%"><br> 222 <strong>Figure 23</strong>. Right side, tablet holder inserted in slots (viewed 223 from back of box so it appears on the left).<br><br> 224 If the tabs are too tight to allow the tablet holder to move up and down, sand 225 the tabs with 100 grit sandpaper to thin them and create a better fit.</li> 226 <li>Snap the left panel into place by pushing and sliding it upwards, as shown 227 in figure 24: 228 <br><img src=images/camera_iab_left_side_placed.jpg width="50%"><br> 229 <strong>Figure 24</strong>. Left side panel in place.</li> 230 <li>Gather the handle parts shown in Figure 25: 231 <br><img src=images/camera_iab_handle_parts.png width="50%"><br> 232 <strong>Figure 25</strong>. Handle and box lock parts.<br><br> 233 Hardware includes four wide plastic pieces (for outside the box) and two narrow 234 pieces (for top of the box). Screw holes are not placed symmetrically on the 235 plastic strips.</li> 236 <li>Assemble the handle as shown in figure 26: 237 <br><img src=images/camera_iab_handle_assembled.png width="50%"><br> 238 <strong>Figure 26</strong>. Assembled handle.<br><br> 239 Acorn nuts are usually placed on the top of the box. While this is not strictly 240 necessary, it makes the outer part of the handle as flat as possible. If the 241 handle is loose, insert washers to allow the acorn nuts to tighten effectively. 242 </li> 243 </ol> 244 245 <h2 id=final-assembly>Step 8: Final assembly</h2> 246 <p>To perform final assembly of the ITS-in-a-box:</p> 247 <ol> 248 <li>Using two nylon screws (short or long), attach the square aperture panel 249 with phone mounts to the front of the box as shown in Figure 27: 250 <br><img src=images/camera_iab_front_attached.jpg width="50%"><br> 251 <strong>Figure 27</strong>. Attached front panel.<br><br> 252 Place one screw on the top of the box and one screw on the bottom of the box.</li> 253 <li>Test the 4"x4 gatorboard aperture blank to ensure it fits in the square 254 opening, as shown in Figure 28: 255 <br><img src=images/camera_iab_gater_no_aperture.jpg width="50%"><br> 256 <strong>Figure 28</strong>. Gatorboard installed, no aperture cut.<br><br> 257 The fit should be snug. If the blank is too tight, shave it; if too loose, make 258 another.</li> 259 <li>Cut apertures for cameras. You can cut a single aperture (for testing a 260 single phone) or two apertures (for testing two phones). Apertures for the Pixel 261 and Pixel XL front and rear cameras are shown in Figure 29: 262 <br><img src=images/camera_iab_front_apertures.jpg width="50%"><br> 263 <strong>Figure 29</strong>. Front of ITS-in-a-box with front and rear camera 264 aperture cuts.<br><br> 265 The front camera is a circular aperture since there is no flash or laser, while 266 the rear camera is a rectangular aperture that allows the flash and laser to 267 operate without being blocked.</li></ol> 268 269 </body> 270 </html> 271
