{"id":4721,"date":"2019-04-29T15:56:44","date_gmt":"2019-04-29T15:56:44","guid":{"rendered":"https:\/\/www.fictiv.com\/?post_type=cpt_teardown&#038;p=4721"},"modified":"2021-08-23T13:30:43","modified_gmt":"2021-08-23T20:30:43","slug":"wowwee-chip-robot-dog-toy-teardown","status":"publish","type":"cpt_teardown","link":"https:\/\/www.fictiv.com\/teardowns\/wowwee-chip-robot-dog-toy-teardown","title":{"rendered":"WowWee CHiP Robot Dog Toy Teardown"},"content":{"rendered":"\n<p><em>This week&#8217;s teardown is a collaboration between Fictiv manufacturing engineer Sylvia Wu and guest industrial designer <\/em><a href=\"http:\/\/thinkblake.com\/\"><em>Blake Johnson<\/em><\/a><em>.<\/em><\/p>\n\n\n\n<p>CHiP is the latest release from famed robotic toymaker WowWee and comes jam-packed with personality and playful features. Through gesture and voice commands, as well as a wearable remote control, CHiP perform tricks like greet, fetch, sit, and dance. Someone at WowWee even had the wacky idea to have CHiP use its articulating legs to do yoga\u2026because what else would you want your robot dog to do, really? CHiP also responds to taps and pets on his head and makes little robot dog sounds.<\/p>\n\n\n\n<p>In fact, we had so much fun playing with CHiP before this teardown that it ended up being quite the controversy when it came time to see what makes this little guy tick\u2026but we do what we must! So how does a company pack personality, robot tech, and several additional accessories into a $200 bundle? Let\u2019s find out\u2026<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\" id=\"w-node-a0da322d1e1f\"><img loading=\"lazy\" decoding=\"async\" width=\"950\" height=\"633\" data-src=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586b217aed8074392924f5d8_chip-teardown-image01.jpg\" alt=\"\" class=\"wp-image-5113 lazyload\" data-srcset=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586b217aed8074392924f5d8_chip-teardown-image01.jpg 950w, https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586b217aed8074392924f5d8_chip-teardown-image01-768x512.jpg 768w\" sizes=\"auto, (max-width: 950px) 100vw, 950px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Design and Experience<\/strong><\/h2>\n\n\n\n<p>Before opening him up, let\u2019s take a look at CHiP from a design point of view. He may be small, but he has a strong, muscular silhouette. His closest real dog cousin is probably a Boston Terrier. &nbsp;<\/p>\n\n\n\n<p>CHiP\u2019s primarily black, white, grey, and metallic blue color palette gives him a contemporary look befitting a modern robotic toy. The metallic blue accents are sometimes achieved in-mold and other times painted on. He feels pretty durable, as any good toy should be, but <a href=\"https:\/\/www.fictiv.com\/injection-molding-service\">injection molding<\/a> defects are visible in several places (such as flash and unclean gate trims), which make CHiP fall short of a premium product.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\" id=\"w-node-51a724361730\"><img loading=\"lazy\" decoding=\"async\" width=\"950\" height=\"633\" data-src=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586b21f7f54cd0c06b5993fa_chip-teardown_image02.jpg\" alt=\"\" class=\"wp-image-5114 lazyload\" data-srcset=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586b21f7f54cd0c06b5993fa_chip-teardown_image02.jpg 950w, https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586b21f7f54cd0c06b5993fa_chip-teardown_image02-768x512.jpg 768w\" sizes=\"auto, (max-width: 950px) 100vw, 950px\" \/><\/figure>\n\n\n\n<p>In order to get CHiP set up, he needs to sit on his charging dock for some time. The charging dock plugs into a wall outlet. His remote controls are charged via USB. His ball accessory requires batteries. All these different protocols do not translate into a smooth experience.<\/p>\n\n\n\n<p>However, CHiP can be a lot of fun, which helped us forgive the setup friction. He actually moves around very quickly, giving the impression of an energetic little pup. His eyes light up in different colors, and he makes various sounds to indicate his emotions. He can navigate to his ball while playing fetch fairly easily, as long as his surroundings are obstacle-free. Bringing the ball back to the person wearing the Smartband is also pretty smooth, as long as the band is in CHiP\u2019s line of sight the whole time. &nbsp;<\/p>\n\n\n\n<p>As mentioned previously, CHiP responds to voice commands, but not without a little bit of sexism sprinkled in\u2014CHiP was most responsive to deep male voices and often only responded to women when they deliberately lowered their voices. We don\u2019t think this is intentional, but it\u2019s definitely an engineering oversight.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\" id=\"w-node-0e591da2771f\"><img loading=\"lazy\" decoding=\"async\" width=\"950\" height=\"633\" data-src=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586b2282844ff84729783d89_chip-eardown_image03-1.jpg\" alt=\"\" class=\"wp-image-5117 lazyload\" data-srcset=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586b2282844ff84729783d89_chip-eardown_image03-1.jpg 950w, https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586b2282844ff84729783d89_chip-eardown_image03-1-768x512.jpg 768w\" sizes=\"auto, (max-width: 950px) 100vw, 950px\" \/><\/figure>\n\n\n\n<p>\u201cEnough with this design talk; get on with the teardown!\u201d OK, OK; we hear you.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Mechanical System<\/strong><\/h2>\n\n\n\n<p>Naturally, the first thing we want to do is remove the battery. Safety first!<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\" id=\"w-node-306c7e9a2db8\"><img loading=\"lazy\" decoding=\"async\" width=\"950\" height=\"633\" data-src=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586b231e844ff84729783d8a_chip-teardown_image04-1.jpg\" alt=\"\" class=\"wp-image-5119 lazyload\" data-srcset=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586b231e844ff84729783d8a_chip-teardown_image04-1.jpg 950w, https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586b231e844ff84729783d8a_chip-teardown_image04-1-768x512.jpg 768w\" sizes=\"auto, (max-width: 950px) 100vw, 950px\" \/><\/figure>\n\n\n\n<p>The first surprise: The lithium ion battery pack isn\u2019t just behind a protective panel; it has a complete housing of its own with only a small hole for wires. Hex screws hold the housing halves together; whereas all other screws in CHiP were Phillips head. The <a href=\"https:\/\/www.fictiv.com\/articles\/how-to-select-the-right-battery-for-wearables-and-consumer-electronics\">battery<\/a> housing has serious thick walls. All these precautions are to prevent battery punctures, which cause explosions. It\u2019s good to see WowWee taking product safety so seriously.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\" id=\"w-node-1ab6f5e361f0\"><img loading=\"lazy\" decoding=\"async\" width=\"950\" height=\"633\" data-src=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586b235fed8074392924f5db_chip-teardown_image05.jpg\" alt=\"\" class=\"wp-image-5118 lazyload\" data-srcset=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586b235fed8074392924f5db_chip-teardown_image05.jpg 950w, https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586b235fed8074392924f5db_chip-teardown_image05-768x512.jpg 768w\" sizes=\"auto, (max-width: 950px) 100vw, 950px\" \/><\/figure>\n\n\n\n<p>Next, we separate CHiP\u2019s upper body from his lower body. Four basic Phillips head screws make this a quicker and simpler job than the battery compartment. I guess it\u2019s OK if your kids pop their CHiP open, as long as they don\u2019t get into the battery? Look away, CHiP; you don\u2019t want to see this!<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\" id=\"w-node-bd0f559edce8\"><img loading=\"lazy\" decoding=\"async\" width=\"950\" height=\"633\" data-src=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586b23f2e8fdf2ad6bb15e75_chip-teardown-image06.jpg\" alt=\"\" class=\"wp-image-5121 lazyload\" data-srcset=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586b23f2e8fdf2ad6bb15e75_chip-teardown-image06.jpg 950w, https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586b23f2e8fdf2ad6bb15e75_chip-teardown-image06-768x512.jpg 768w\" sizes=\"auto, (max-width: 950px) 100vw, 950px\" \/><\/figure>\n\n\n\n<p>We realize at this point that WowWee engineers clearly did not need to do any miniaturization for this little dog. It\u2019s quite airy in there, and there are no space-saving features. Everything is held together with normal-sized self-tapping fasteners.<\/p>\n\n\n\n<p>Here is the first PCBA driving all of CHiP\u2019s motors: All connectors are color-coded for easy assembly. The corresponding wire harness has the same color.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\" id=\"w-node-1bb23e8c7363\"><img loading=\"lazy\" decoding=\"async\" width=\"950\" height=\"633\" data-src=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586b244ef54cd0c06b5993fd_chip-teardown-image07.jpg\" alt=\"\" class=\"wp-image-5120 lazyload\" data-srcset=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586b244ef54cd0c06b5993fd_chip-teardown-image07.jpg 950w, https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586b244ef54cd0c06b5993fd_chip-teardown-image07-768x512.jpg 768w\" sizes=\"auto, (max-width: 950px) 100vw, 950px\" \/><\/figure>\n\n\n\n<p>Underneath the main PCBA, there are two gear boxes, one for the front legs and one for the back. The gear boxes are identical, but they are color coded explicitly for assembly. A+ for DFA!<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\" id=\"w-node-76d4948b5804\"><img loading=\"lazy\" decoding=\"async\" width=\"950\" height=\"633\" data-src=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586b2499f54cd0c06b5993fe_chip-teardown-image08.jpg\" alt=\"\" class=\"wp-image-5122 lazyload\" data-srcset=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586b2499f54cd0c06b5993fe_chip-teardown-image08.jpg 950w, https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586b2499f54cd0c06b5993fe_chip-teardown-image08-768x512.jpg 768w\" sizes=\"auto, (max-width: 950px) 100vw, 950px\" \/><\/figure>\n\n\n\n<p>Once we remove several fasteners, the leg assemblies come right out. Without the constraint of the body enclosure, the legs pull straight off from the gearboxes.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\" id=\"w-node-328e3d816455\"><img loading=\"lazy\" decoding=\"async\" width=\"950\" height=\"633\" data-src=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586b24e4ed8074392924f5de_chip-teardown-image09.jpg\" alt=\"\" class=\"wp-image-5123 lazyload\" data-srcset=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586b24e4ed8074392924f5de_chip-teardown-image09.jpg 950w, https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586b24e4ed8074392924f5de_chip-teardown-image09-768x512.jpg 768w\" sizes=\"auto, (max-width: 950px) 100vw, 950px\" \/><\/figure>\n\n\n\n<p>Joints between the gear boxes and legs incorporate brass sleeve bearings, which create a smoother rotating connection for the output. Torsion springs are used for shock absorption and help the leg joints feel less rigid and more like lifelike.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\" id=\"w-node-63704f6c89c8\"><img loading=\"lazy\" decoding=\"async\" width=\"950\" height=\"633\" data-src=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586b2523f54cd0c06b599403_chip-teardown-image10.jpg\" alt=\"\" class=\"wp-image-5124 lazyload\" data-srcset=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586b2523f54cd0c06b599403_chip-teardown-image10.jpg 950w, https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586b2523f54cd0c06b599403_chip-teardown-image10-768x512.jpg 768w\" sizes=\"auto, (max-width: 950px) 100vw, 950px\" \/><\/figure>\n\n\n\n<p>Let\u2019s open up one of those gear boxes. There are some interesting features here: A worm screw is mounted to the DC motor shaft. The corresponding worm gear gets geared down several times before reaching symmetrical outputs: CHiP\u2019s front left and right legs move synchronously, and the same thing goes for the hind leg pair. There\u2019s also an ancillary output shaft connected to a mechanical potentiometer; this is to monitor the leg position, which is very important for closed-loop (feedback) control.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\" id=\"w-node-33466c04cca9\"><img loading=\"lazy\" decoding=\"async\" width=\"950\" height=\"633\" data-src=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586b2675e8fdf2ad6bb15e7d_chip-teardown-image11.jpg\" alt=\"\" class=\"wp-image-5125 lazyload\" data-srcset=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586b2675e8fdf2ad6bb15e7d_chip-teardown-image11.jpg 950w, https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586b2675e8fdf2ad6bb15e7d_chip-teardown-image11-768x512.jpg 768w\" sizes=\"auto, (max-width: 950px) 100vw, 950px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\" id=\"w-node-2e7df2335018\"><img loading=\"lazy\" decoding=\"async\" width=\"950\" height=\"633\" data-src=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586b269fed8074392924fb40_chip-teardown-image12.jpg\" alt=\"\" class=\"wp-image-5126 lazyload\" data-srcset=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586b269fed8074392924fb40_chip-teardown-image12.jpg 950w, https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586b269fed8074392924fb40_chip-teardown-image12-768x512.jpg 768w\" sizes=\"auto, (max-width: 950px) 100vw, 950px\" \/><\/figure>\n\n\n\n<p>The leg halves come apart to reveal another DC motor-powered gearbox. This drives the \u201cpaws,\u201d aka <a href=\"https:\/\/en.wikipedia.org\/wiki\/Mecanum_wheel\">Mecanum<\/a> wheels. Mecanum wheels are super neat: they allow CHiP to move in any direction (front-and-back and side-to-side) while in any orientation. This helps CHiP maneuver in tight spaces without room for turning.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\" id=\"w-node-0251109818da\"><img loading=\"lazy\" decoding=\"async\" width=\"950\" height=\"633\" data-src=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586b26eaed8074392924fb41_chip-teardown-image13.jpg\" alt=\"\" class=\"wp-image-5127 lazyload\" data-srcset=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586b26eaed8074392924fb41_chip-teardown-image13.jpg 950w, https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586b26eaed8074392924fb41_chip-teardown-image13-768x512.jpg 768w\" sizes=\"auto, (max-width: 950px) 100vw, 950px\" \/><\/figure>\n\n\n\n<p>A quick note on how this works: When the wheels are all turning in one direction, CHiP moves forwards and backwards. When the front and back wheels rotate in different directions, CHiP moves from side to side.<\/p>\n\n\n\n<p>This technology was used in a production forklift called the <a href=\"http:\/\/www.airtrax.com\/\">Airtrax ATX-3000<\/a>, now no longer produced\u2014but its legend lives on! It\u2019s so futuristic that it made an appearance in the 2009 Star Trek movie.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\" id=\"w-node-b0bed096b707\"><img loading=\"lazy\" decoding=\"async\" width=\"950\" height=\"633\" data-src=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586b2736844ff847297842ee_chip-teardown-image14.jpg\" alt=\"\" class=\"wp-image-5128 lazyload\" data-srcset=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586b2736844ff847297842ee_chip-teardown-image14.jpg 950w, https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586b2736844ff847297842ee_chip-teardown-image14-768x512.jpg 768w\" sizes=\"auto, (max-width: 950px) 100vw, 950px\" \/><\/figure>\n\n\n\n<p>Due to mecanum wheels\u2019 working principle, wheels are specific to the left and right sides. Again, WowWee engineers used color coding to clarify which wheels should go on which side.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\" id=\"w-node-436f05427ea1\"><img loading=\"lazy\" decoding=\"async\" width=\"950\" height=\"633\" data-src=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586b27abed8074392924fb42_chip-teardown-image15.jpg\" alt=\"\" class=\"wp-image-5129 lazyload\" data-srcset=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586b27abed8074392924fb42_chip-teardown-image15.jpg 950w, https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586b27abed8074392924fb42_chip-teardown-image15-768x512.jpg 768w\" sizes=\"auto, (max-width: 950px) 100vw, 950px\" \/><\/figure>\n\n\n\n<p>Each mecanum wheel is quite the assembly. The rollers are composed an elastomer sleeve over a delrin bearing, which mounts onto a steel pin axle. The axles are then mounted onto a sheet metal hub. This whole thing mounts to the \u201cankle\u201d via a turn-and-lock mechanism, which makes the wheels easy to remove and replace without any tools. Our guess is that shoelaces, cables, and doll\u2019s hairs might get tangled in the wheels, and this makes it easy to free CHiP in those instances.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\" id=\"w-node-6e17fcff0b99\"><img loading=\"lazy\" decoding=\"async\" width=\"950\" height=\"633\" data-src=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586b27daed8074392924fb45_chip-teardown-image16.jpg\" alt=\"\" class=\"wp-image-5130 lazyload\" data-srcset=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586b27daed8074392924fb45_chip-teardown-image16.jpg 950w, https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586b27daed8074392924fb45_chip-teardown-image16-768x512.jpg 768w\" sizes=\"auto, (max-width: 950px) 100vw, 950px\" \/><\/figure>\n\n\n\n<p>The main mechanical difference between the front and back is that there is an extra degree of freedom in the front shoulders. The front legs can roll a couple of degrees toward and away from the body. This movement is not driven by any actuators, so it\u2019s likely another feature designed to give the little guy a little bit more organic realism.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\" id=\"w-node-f9e71976206f\"><img loading=\"lazy\" decoding=\"async\" width=\"950\" height=\"633\" data-src=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586bcfcaed80743929260f0a_chip-teardown-image17.jpg\" alt=\"\" class=\"wp-image-5131 lazyload\" data-srcset=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586bcfcaed80743929260f0a_chip-teardown-image17.jpg 950w, https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586bcfcaed80743929260f0a_chip-teardown-image17-768x512.jpg 768w\" sizes=\"auto, (max-width: 950px) 100vw, 950px\" \/><\/figure>\n\n\n\n<p>Below the motors, we find that CHiP\u2019s two modes of recharging (metal contacts on his butt and a direct plug in his chest) run through a single PCBA, on which we also find the on\/off switch.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\" id=\"w-node-99f55feff352\"><img loading=\"lazy\" decoding=\"async\" width=\"950\" height=\"633\" data-src=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586bd02ee8fdf2ad6bb30ad6_chip-teardown-image18.jpg\" alt=\"\" class=\"wp-image-5132 lazyload\" data-srcset=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586bd02ee8fdf2ad6bb30ad6_chip-teardown-image18.jpg 950w, https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586bd02ee8fdf2ad6bb30ad6_chip-teardown-image18-768x512.jpg 768w\" sizes=\"auto, (max-width: 950px) 100vw, 950px\" \/><\/figure>\n\n\n\n<p>CHiP has a chest magnet that grabs his ball during fetch. It is cleverly held in place by the blue WowWee logo emblem.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\" id=\"w-node-394c51f37a2b\"><img loading=\"lazy\" decoding=\"async\" width=\"950\" height=\"633\" data-src=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586bd161844ff847297a3c60_chip-teardown-image19.jpg\" alt=\"\" class=\"wp-image-5133 lazyload\" data-srcset=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586bd161844ff847297a3c60_chip-teardown-image19.jpg 950w, https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586bd161844ff847297a3c60_chip-teardown-image19-768x512.jpg 768w\" sizes=\"auto, (max-width: 950px) 100vw, 950px\" \/><\/figure>\n\n\n\n<p>That\u2019s about it for CHiP\u2019s body, but there are some more discoveries to be made in his head.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\" id=\"w-node-438a40d315e1\"><img loading=\"lazy\" decoding=\"async\" width=\"950\" height=\"633\" data-src=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586bd1b0e8fdf2ad6bb30f2a_chip-teardown-image20.gif\" alt=\"\" class=\"wp-image-5134 lazyload\" data-srcset=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586bd1b0e8fdf2ad6bb30f2a_chip-teardown-image20.gif 950w, https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586bd1b0e8fdf2ad6bb30f2a_chip-teardown-image20-768x512.gif 768w\" sizes=\"auto, (max-width: 950px) 100vw, 950px\" \/><\/figure>\n\n\n\n<p>The blue collar around CHiP\u2019s neck is one of only a couple of aesthetic features that are molded in blue plastic instead of painted (see the hip). This could have been a design-driven decision to make sure that focal point features looked cleaner. The painted features inevitably have a small amount of overspray.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\" id=\"w-node-1e36b21ac8a0\"><img loading=\"lazy\" decoding=\"async\" width=\"950\" height=\"633\" data-src=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586bd26df54cd0c06b5b15dc_chip-teardown-image21.jpg\" alt=\"\" class=\"wp-image-5135 lazyload\" data-srcset=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586bd26df54cd0c06b5b15dc_chip-teardown-image21.jpg 950w, https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586bd26df54cd0c06b5b15dc_chip-teardown-image21-768x512.jpg 768w\" sizes=\"auto, (max-width: 950px) 100vw, 950px\" \/><\/figure>\n\n\n\n<p>In CHiP\u2019s head, we find a clever mechanism that provides the ears with some movement without any additional motors. An arm attached to the ear slides along a swooping channel in the neck, so when CHiP turns his head, his ears rotate a little at the same time. Nice!<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\" id=\"w-node-e0c00f79a564\"><img loading=\"lazy\" decoding=\"async\" width=\"950\" height=\"633\" data-src=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586bd2aff54cd0c06b5b1668_chip-teardown-image22.gif\" alt=\"\" class=\"wp-image-5136 lazyload\" data-srcset=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586bd2aff54cd0c06b5b1668_chip-teardown-image22.gif 950w, https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586bd2aff54cd0c06b5b1668_chip-teardown-image22-768x512.gif 768w\" sizes=\"auto, (max-width: 950px) 100vw, 950px\" \/><\/figure>\n\n\n\n<p>We wrap up the mechanical system with one final gearbox that sits in CHiP\u2019s neck and has a potentiometer to track head position and provide feedback for the control loop.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\" id=\"w-node-98a94ac67542\"><img loading=\"lazy\" decoding=\"async\" width=\"950\" height=\"633\" data-src=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586bd324844ff847297a3c72_chip-teardown-image23.jpg\" alt=\"\" class=\"wp-image-5137 lazyload\" data-srcset=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586bd324844ff847297a3c72_chip-teardown-image23.jpg 950w, https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586bd324844ff847297a3c72_chip-teardown-image23-768x512.jpg 768w\" sizes=\"auto, (max-width: 950px) 100vw, 950px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Sensors<\/strong><\/h2>\n\n\n\n<p>The first sensing feature we come across, right at the top of CHiP\u2019s head, was his mic. Wait a second\u2026there\u2019s no microphone hole! Could this have caused CHiP\u2019s apparent favoritism for deep voices? Bass\/low frequency waves travel through a medium further than high frequency waves because there is less energy dissipated to the medium.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\" id=\"w-node-f1148397927c\"><img loading=\"lazy\" decoding=\"async\" width=\"950\" height=\"633\" data-src=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586bd4cef54cd0c06b5b1727_chip-teardown-image24.jpg\" alt=\"\" class=\"wp-image-5138 lazyload\" data-srcset=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586bd4cef54cd0c06b5b1727_chip-teardown-image24.jpg 950w, https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586bd4cef54cd0c06b5b1727_chip-teardown-image24-768x512.jpg 768w\" sizes=\"auto, (max-width: 950px) 100vw, 950px\" \/><\/figure>\n\n\n\n<p>In the back of CHiP\u2019s head, we find three IR transmitter and receiver pairs mounted on small PCBs. Here\u2019s one of them.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\" id=\"w-node-e211eadd14cd\"><img loading=\"lazy\" decoding=\"async\" width=\"950\" height=\"633\" data-src=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586bd511e8fdf2ad6bb31ca8_chip-teardown-image25.jpg\" alt=\"\" class=\"wp-image-5139 lazyload\" data-srcset=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586bd511e8fdf2ad6bb31ca8_chip-teardown-image25.jpg 950w, https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586bd511e8fdf2ad6bb31ca8_chip-teardown-image25-768x512.jpg 768w\" sizes=\"auto, (max-width: 950px) 100vw, 950px\" \/><\/figure>\n\n\n\n<p>The white head shell has been partially sprayed black on the inside to prevent light \u201ccrosstalk\u201d.<\/p>\n\n\n\n<p>Also, you see that copper tape? Yeah, that\u2019s part of CHiP\u2019s \u201ccapacitive\u201d touch sensor array. Fancy.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\" id=\"w-node-e1ab29feb31e\"><img loading=\"lazy\" decoding=\"async\" width=\"950\" height=\"633\" data-src=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586bd564ed807439292615ff_chip-teardown-image26.jpg\" alt=\"\" class=\"wp-image-5140 lazyload\" data-srcset=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586bd564ed807439292615ff_chip-teardown-image26.jpg 950w, https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586bd564ed807439292615ff_chip-teardown-image26-768x512.jpg 768w\" sizes=\"auto, (max-width: 950px) 100vw, 950px\" \/><\/figure>\n\n\n\n<p>We find CHiP\u2019s second large PCBA inside his head. Again, well color-coded for easy assembly. This PCBA serves as a hub for all the sensors.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\" id=\"w-node-03b944a3b32c\"><img loading=\"lazy\" decoding=\"async\" width=\"950\" height=\"633\" data-src=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586bd5c0f54cd0c06b5b1733_chip-teardown-image27.jpg\" alt=\"\" class=\"wp-image-5141 lazyload\" data-srcset=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586bd5c0f54cd0c06b5b1733_chip-teardown-image27.jpg 950w, https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586bd5c0f54cd0c06b5b1733_chip-teardown-image27-768x512.jpg 768w\" sizes=\"auto, (max-width: 950px) 100vw, 950px\" \/><\/figure>\n\n\n\n<p>Each eye PCBA has of an array of three RGB LEDs and one IR sensor pair. There are also IR sensors in CHiP\u2019s cheeks.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\" id=\"w-node-5bbcee580561\"><img loading=\"lazy\" decoding=\"async\" width=\"950\" height=\"633\" data-src=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586bd620844ff847297a3da2_chip-teardown-image28.jpg\" alt=\"\" class=\"wp-image-5142 lazyload\" data-srcset=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586bd620844ff847297a3da2_chip-teardown-image28.jpg 950w, https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586bd620844ff847297a3da2_chip-teardown-image28-768x512.jpg 768w\" sizes=\"auto, (max-width: 950px) 100vw, 950px\" \/><\/figure>\n\n\n\n<p>The grey eye covers are spray painted white on the inside for light diffusion. That\u2019s about as low-tech as it gets.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\" id=\"w-node-2bc983a6d71d\"><img loading=\"lazy\" decoding=\"async\" width=\"950\" height=\"633\" data-src=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586bd654f54cd0c06b5b179b_chip-teardown-image29.jpg\" alt=\"\" class=\"wp-image-5143 lazyload\" data-srcset=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586bd654f54cd0c06b5b179b_chip-teardown-image29.jpg 950w, https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586bd654f54cd0c06b5b179b_chip-teardown-image29-768x512.jpg 768w\" sizes=\"auto, (max-width: 950px) 100vw, 950px\" \/><\/figure>\n\n\n\n<p>Flip these parts over, and there\u2019s a simple, low-profile speaker and two more copper tape capacitive touch sensing areas.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\" id=\"w-node-e0dcab0225c2\"><img loading=\"lazy\" decoding=\"async\" width=\"950\" height=\"633\" data-src=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586bd68d844ff847297a3e5a_chip-teardown-image30.jpg\" alt=\"\" class=\"wp-image-5144 lazyload\" data-srcset=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586bd68d844ff847297a3e5a_chip-teardown-image30.jpg 950w, https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586bd68d844ff847297a3e5a_chip-teardown-image30-768x512.jpg 768w\" sizes=\"auto, (max-width: 950px) 100vw, 950px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Main Takeaways<\/strong><\/h2>\n\n\n\n<p>CHiP has a lot of unique plastic parts, which would have incurred high tooling costs; however, the finish is not super polished, which helps to keep costs down. This is a toy for children, after all\u2014it\u2019ll get beaten up in no time.<\/p>\n\n\n\n<p>CHiP\u2019s sensors are cheap and easy to source. IR powers all of CHiP\u2019s \u201csituational awareness.\u201d &nbsp;IR LED pairs help CHiP communicate with his ball and his remote control, and they help him find his charging dock. They\u2019re also used for navigation and obstacle avoidance. The capacitive sensors are just copper tape. It\u2019s simple, but it works!<\/p>\n\n\n\n<p>WowWee engineers weren\u2019t crunched for space when designing CHiP: He had to be a reasonable size for a pet, so electronics didn\u2019t have to be miniaturized. Large connectors were used everywhere, and self-threading screws held everything together. Although CHiP has a lot of components, his creators tried to make the assembly process as straightforward as possible by color coding.<\/p>\n\n\n\n<p>The coolest part of CHiP is definitely his mecanum wheels, which will definitely make it into our next robotics project (<a href=\"http:\/\/www.robotshop.com\/en\/mecanum-wheel-4-pack-w-metal-hubs.html\">Robotshop<\/a> sells a variety of sizes). After publishing this teardown, we\u2019re going right back into watching mecanum videos on YouTube.<\/p>\n\n\n\n<p>Thank you, CHiP, for your contribution to manufacturing and engineering education. We will never forget you!<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1500\" height=\"720\" data-src=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586b20ae844ff84729783d86_Chip-Robot-Dog_Hero.jpg\" alt=\"\" class=\"wp-image-5145 lazyload\" data-srcset=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586b20ae844ff84729783d86_Chip-Robot-Dog_Hero.jpg 1500w, https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586b20ae844ff84729783d86_Chip-Robot-Dog_Hero-768x369.jpg 768w, https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586b20ae844ff84729783d86_Chip-Robot-Dog_Hero-515x247.jpg 515w, https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/586b20ae844ff84729783d86_Chip-Robot-Dog_Hero-700x336.jpg 700w\" sizes=\"auto, (max-width: 1500px) 100vw, 1500px\" \/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>This week&#8217;s teardown is a collaboration between Fictiv manufacturing engineer Sylvia Wu and guest industrial designer Blake Johnson. CHiP is the latest release from famed robotic toymaker WowWee and comes jam-packed with personality and playful features. Through gesture and voice commands, as well as a wearable remote control, CHiP perform tricks like greet, fetch, sit, [&hellip;]<\/p>\n","protected":false},"author":170,"featured_media":4722,"parent":0,"template":"","fictiv_role":[29],"fictiv_topic":[28],"fictiv_industry":[40,32],"coauthors":[279],"class_list":["post-4721","cpt_teardown","type-cpt_teardown","status-publish","has-post-thumbnail","hentry","fictiv_topic-mechanical-design"],"aioseo_notices":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.2 (Yoast SEO v24.2) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>WowWee CHiP Robot Dog Toy Teardown - Fictiv<\/title>\n<meta name=\"description\" content=\"We take apart WowWee&#039;s CHiP the Robot Toy Dog to find out what makes him such a sprightly little robot companion.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.fictiv.com\/teardowns\/wowwee-chip-robot-dog-toy-teardown\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"WowWee CHiP Robot Dog Toy Teardown\" \/>\n<meta property=\"og:description\" content=\"We take apart WowWee&#039;s CHiP the Robot Toy Dog to find out what makes him such a sprightly little robot companion.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.fictiv.com\/teardowns\/wowwee-chip-robot-dog-toy-teardown\" \/>\n<meta property=\"og:site_name\" content=\"Fictiv\" \/>\n<meta property=\"article:modified_time\" content=\"2021-08-23T20:30:43+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/Chip-Robot-Dog_Hero.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1500\" \/>\n\t<meta property=\"og:image:height\" content=\"720\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"9 minutes\" \/>\n\t<meta name=\"twitter:label2\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data2\" content=\"Charles Yeung\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.fictiv.com\/teardowns\/wowwee-chip-robot-dog-toy-teardown\",\"url\":\"https:\/\/www.fictiv.com\/teardowns\/wowwee-chip-robot-dog-toy-teardown\",\"name\":\"WowWee CHiP Robot Dog Toy Teardown - Fictiv\",\"isPartOf\":{\"@id\":\"https:\/\/www.fictiv.com\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.fictiv.com\/teardowns\/wowwee-chip-robot-dog-toy-teardown#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.fictiv.com\/teardowns\/wowwee-chip-robot-dog-toy-teardown#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/Chip-Robot-Dog_Hero.jpg\",\"datePublished\":\"2019-04-29T15:56:44+00:00\",\"dateModified\":\"2021-08-23T20:30:43+00:00\",\"description\":\"We take apart WowWee's CHiP the Robot Toy Dog to find out what makes him such a sprightly little robot companion.\",\"breadcrumb\":{\"@id\":\"https:\/\/www.fictiv.com\/teardowns\/wowwee-chip-robot-dog-toy-teardown#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.fictiv.com\/teardowns\/wowwee-chip-robot-dog-toy-teardown\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.fictiv.com\/teardowns\/wowwee-chip-robot-dog-toy-teardown#primaryimage\",\"url\":\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/Chip-Robot-Dog_Hero.jpg\",\"contentUrl\":\"https:\/\/www.fictiv.com\/wp-content\/uploads\/2020\/09\/Chip-Robot-Dog_Hero.jpg\",\"width\":1500,\"height\":720},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.fictiv.com\/teardowns\/wowwee-chip-robot-dog-toy-teardown#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.fictiv.com\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Teardowns\",\"item\":\"https:\/\/www.fictiv.com\/teardowns\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"WowWee CHiP Robot Dog Toy Teardown\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.fictiv.com\/#website\",\"url\":\"https:\/\/www.fictiv.com\/\",\"name\":\"Fictiv\",\"description\":\"On-Demand Manufacturing, CNC Machining &amp; 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