http://www.thuandoan.com/portfolio daily 0.75 2025-01-26 https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441589060979-VABNTU8V63X458U86JDV/2015-05-04+14.02.07.jpg Portfolio - Final Lathe Assembly https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441082982160-VYPYN7OFHXUY2363134F/CAD+Rendering.JPG Portfolio - CAD Assembly https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441079342826-5YXGQUU745AWS6XS950W/2015-03-30+17.15.26.jpg Portfolio - Spindle Shaft Sub-Assembly https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441079349638-AQP94NM8ALD1XFHBGJWR/2015-04-13+14.19.15.jpg Portfolio - Cross Slide Sub-Assembly https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441079382703-BIYOFW5RGCV65S82B3LB/Photo+May+03%2C+1+03+15+PM.jpg Portfolio - Z-Drive Part Breakdown https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441079363607-EO1HK6A7T0KJC6ZG6VEG/20150217_142414.jpg Portfolio - Z-Drive Assembly https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441081697711-DSYMCS0KDKJZMHJR9LX4/PART-0001-V2-SPINDLE_SHAFT.png Portfolio - Part Drawings for Machining Parts were designed in CAD, and drawings had to undergo design reviews before parts could be machined. https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441081724604-IT9KGMQN8LDQ1SHTZ8YW/536fe5f475af0ccbd44412e9db899a04842b.jpg Portfolio - FEA for Flexure Design FEA was utilized to design flexures that prevented sub-assemblies from being over-constrained. https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441081741101-FOKM0Q7CZ48ECW1ZA43J/524e11f845c26624616df01e73dd3128fbc9.png Portfolio - FEA for Z-Drive Flexure Dubbed the "dancing man flexure," this flexure was used to ensure that the carriage was not overconstrained to the Z-axis threaded rod. https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441592227814-R4TRTGU2YXOC7WL7HVN5/9e5c7404a37b30e2f9bb3d70846346e31f04+%281%29.jpg Portfolio https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441592236380-3AXKJGH7J1C2HZN0A24R/Capture.PNG Portfolio https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441592228589-2TMVXZ4JJIW7NBJN9UHA/6369984527cbc1efda64f4949cbfc5fade71.jpg Portfolio https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441671428574-BSNN46IIOEMZRQMI82PR/image-asset.jpeg Portfolio Final prototype of the pod system, which was later developed by another team from the discussed work. https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441390057168-T37RUDLEUDEQVD1OC279/image-asset.jpeg Portfolio One sample group of the Nest Protects ready to be submitted for standards testing. https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441389966391-HK2D2VUHCUTHSZU3SUO7/image-asset.jpeg Portfolio The standardized setup for smoke detector testing that I was working to understand and optimize. https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441677662576-8D3LESCY9BBLSAB8YB1R/image-asset.jpeg Portfolio The Nest Protect is an internet-enabled smoke and CO detector. Image courtesy of www.dailytech.com https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441678639505-7ZGWYVI9CPDYCH508ZD7/a5bc81d8ffca1b5726e151b3a4bb006daf55.png Portfolio https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441678621487-44LSN1228V3U6Z12C2D5/ecef880719033a254b9dfc78c3aa981cd54b.jpg Portfolio https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441678624006-Q3DKEQ9WA6D5PE7KYYD3/3c314cd29cbd7bfd063e27d6b7393538d6cf.jpg Portfolio 50 completed yoyos https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441678613970-JNVGBGXYCZOMY3J836S1/f4cdcc0263b18e418f6a7a7022f6318af69e.jpg Portfolio A breakdown of the yo-yo's parts. https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441678926519-T5GG7J68DR8AVHCJERP8/ad7325e0af89895cf490aa2a0eb44c101be0.jpg Portfolio Yoyo body core being machined https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441678925515-5TBDUI0ZKL46YX66F8A0/b155df0c044b723298c4cb9304804076be92.jpg Portfolio https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441678928151-XEKECR7P4YSKMYNZAQ96/a3c8cbc9bb499469225502512bcecae855ec.jpg Portfolio Injection molding 100 body parts. https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441678927017-Y9ZU30TR2V2521CQTTYD/f755cf3bf841c8cf64de3b3b425a65e7b2de.jpg Portfolio Thermoforming yoyo windows https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441682786934-NAW5WZ3S3L8U9HRCKFC8/7be149aebee66cdae5a3eecce0a776036ee8.gif Portfolio A quick gif demonstration of the yo-yo's capabilities. https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441683998283-4H6ZS8UD6P8CK3J3C035/0b7005a2dc0c5f1975a0a99ddc0cfea137e2.jpg Portfolio - Assembled Test Rig This is the assembled test rig with the attached wheel mount and the curiosity rover wheel that is being tested. https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441683998256-7D33F9YB7LRWLL7P8X83/4e2b9580e5ce11a51051448f8d0d2b9689a1.jpg Portfolio - Wheel Mount Assembly The Curiosity Rover wheel is 20 inches in diameter necessitating a different wheel mount and test rig design. https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441683998352-ZHIL8DKRHVZ0A7NK6M91/358ae321196e29ff838c9757e9439795d1ba.jpg Portfolio - Wheel Mount CAD This is the rendering of the wheel mount portion of the test rig. It serves as the mount for the wheel, torque sensor, load cell, and motor. https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441683998658-PBJVU68E1KVKPTJV6VMS/60525b3f1cdf1b05e8dd21232ce4fde2ee84.jpg Portfolio - Final CAD Rendering The final design features a wheel mount on a powered carriage that allows for slip and sink conditions to be varied. https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441680352437-XZUU7CDFCQ22590XZKXW/f8c72da527a60c65c10491b45cc672ec7f5b.jpg Portfolio The final design of the body weight support system used a bearing and a linear potentiometer to accurately provide body weight support data. https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441680354339-AU8ZL8L08SZ459Y4AC10/fa9eca10fd11a8d9c2ebe24e4d5fb7af33fc.jpg Portfolio The second iteration of the seat did not effectively decouple the seat's degrees of freedom and was unable to return accurate weight data. https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441680354506-QN9EZ4Z7KIW35560HRWR/107234f8611192bf119260fe298f78a60cdc.jpg Portfolio The entire system including the Skywalker and the body weight support system with adjustable harness and seat. https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441680352323-75KX5WF1E1X3QJCDQLV0/4636613904dc579b27f7a8186cf62639fef9.jpg Portfolio I am taking part in a test to help characterize how one leg compensates when the other leg is perturbed during gait https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441904388092-IBEHTSBT6E7F4TA9S9ZW/2381d1bea13e22ca7b5417e0ba06601f3746.jpg Portfolio https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441727706025-XDX6VF1GPR66IPO6QXCI/353bf3307fbfd4b4d7e1199ae5d8de332a8d.jpg Portfolio https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441728384304-BVGSPFS4ED153OWSFK7R/7a4dbc1604f73cfcbea355bdee745ccc1a21.jpg Portfolio https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441684472177-LYSN7U37ZMVBI2THZDUO/53e2b7384ef55fa1b1e2e7f8f84d9ecabfef.jpg Portfolio The complete experimental setup on a 10m air pistol range. https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441684473161-MLTV2C8P6FGR0W4ZFK3N/f5e0c74069714fc9ab70c03c8ef254b7ef49.jpg Portfolio The testing setup included a 10m air pistol target with reflective tape. https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441684473516-RXBJ1FUZ42RP54W08ZYJ/aec2cf0c2e8d7510026afcc8ffd6fadb1093.jpg Portfolio The air pistol was attached with an optoelectronic unit that was connected to a laptop to record position data. https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441684472472-Q5ATUA6T32W0B0GDOPUD/0ab646588c3d60d7e085fdcb1cb1eee4adc5.jpg Portfolio In Olympic-style shooting, the pistol is operated from a standing, unsupported position. I am shown executing a standard shot process. https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441724156227-IS68SD12OSJC49USCQEQ/fcd9a7fb9bb2853b05b22a9c017a64b1f2be+%281%29.jpg Portfolio 2011 FIRST Robotics Competition - Logo Motion https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441724156012-XSZRYZ6B3E4FGTGEWUE1/bb5b5f928a4d2666ee99b79a22bd1733d099.jpg Portfolio Setting up a CNC milling machine to run a part that I designed in Autodesk Inventor and programmed in EdgeCAM. https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441724154420-QQN45B4AF1M2P37LFBN6/804220d59b35e0dbcb671a55614018a58a64.jpg Portfolio The 2010 FIRST Robotics Challenge was to create a soccer-playing robot. Our solution was to use pneumatic kicking mechanism. https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441724154751-RCVYJB9UUQ176NOY08NR/09acb8c0ff2fd101bb486f608fff8ba6e575.jpg Portfolio A holonomic drive system that I designed for one of the VEX Robotics Competitions. https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441907199193-HOKRZ79ODAF1Y7GV9FWA/fb0454dcb1e016d3f10ad5e334956f4e334c.jpg Portfolio My inspiration for the dumping mechanism of this robot design came from watching a dump truck deliver its payload at a construction site. https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441907386806-46I1ZCEGKD8D08UIX8ID/e926dc29873ccbdb35740151e6b9c19676ef.jpg Portfolio The robot shown in the previous image competing at the VEX World Championships. https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441725664750-2JILUAQLSTYV4X1TRK2M/cdcbc618dbbe74f893d4ebb42912d30c1227.jpg Portfolio To minimize cost and manufacturing time, we standardized the robotic modules. This design included physical, magnetic, and data connections. https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441725646554-NB8T2Q9T1EHQ190AAY1P/a90f4d42153a1e25420137ccf735fd24432d.jpg Portfolio This is one modular orientation of the system. There are 4 wheel, 1 brain, and 1 sensor module, which are used in various configurations. https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441725664635-FXWJF104P8NGU89Q9T3N/87b3a3005c6d7e130b2bdacfca9f3484ee57.jpg Portfolio This was the stair climbing, fire-fighting configuration for the system. The stair climbing mechanism was two motor-powered, threaded rods. https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441725666159-GBWVJ1GDFZBVTC9YB6SF/e9d43836dac59646c474e09d9ebaa7a5bcb7.jpg Portfolio All of the modules had to fit into the bucket, which also had the user interface. Our solution featured a unique removable rack. https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441726689891-6ME635WWH15FQMI6QOPQ/f747ded43e89557088d062cf3d7d8c1c6cd6.jpg Portfolio Our final product and presentation was displayed at an end-of-the-year engineering fair. https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441728883709-F1HCSAF7JMIZTPSAC2TO/00adcdb42569dca7e8cb0bc43b8fffba3377.jpg Portfolio Final CAD Rendering: The CAD was used to minimize manufacturing time and ensure that the system could be assembled properly. https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441728885207-A1SHSU9UDJMTSJYN59PU/a856bed4ec5fa173a1f490de1ee227f08b7c.jpg Portfolio The final assembly of the robot was relatively straight-forward due to planning and designing that was already done in CAD. https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441728974491-J1A8002R93Z85D1BU34C/f8c042beed33076294989678909425b04488.jpg Portfolio The redesigned tray is thinner and lighter. It also features a secure way to hold the "bristles" that made it more effective. https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/c3218ae6-83a0-41ae-a7f1-20605bed4a34/DSC_0047+-+Copy.jpg Portfolio - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1642981057752-5PCK33V7ALRJPI8I9XVL/IMG_5230.jpg Portfolio - First prototype build https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1642986878926-IGNX5PTXNAUU8MLT3VZO/DSC_5302.jpg Portfolio - Living room soldering & assembly station https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1642981104615-P26BK21N80WI19H8CTNA/EF3D9CBD-4447-4540-BB1D-EBD4A4FB60AE.JPEG Portfolio - Fixturing for case machining https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1642981101463-2L54H5S3GHXI0XA61WLU/33438215-4D0D-422C-9987-CFA20D2DC916.jpg Portfolio - Machined cases https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1642985363858-4RXA400K4A0M0KIY4NVL/IMG_0962.JPG Portfolio https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1642981375630-3XMAQFJXIBTL3A3NU9RR/IMG_0751.JPEG Portfolio - Dining table assembly station https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1642983257556-SJX9T8LS9H6P25GRHCNF/IMG_1544.JPEG Portfolio https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1642981083194-SUUCK3PPQGV6H8VGF1Y9/IMG_0762.JPEG Portfolio - Post office drop-off https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1730704946126-S9N1KFU26GQH9AQ67KZ1/Capture-video-tourniquet.JPG Portfolio https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1730704717566-B2RTPQ5T1687T5BPML2B/2016-04-15+14.59.11.jpg Portfolio https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1730705029946-FNCK8KWUBYEU5QJBEWGQ/2016-04-14%2B23.25.07.jpg Portfolio The foldable civilian tourniquet prototype (1st on the left) compared with others available on the market. https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/ceb47342-3d1f-46f2-9792-e957d7bde5f3/Turn-i-kit+image.JPG Portfolio - Make it stand out The team at Precision Trauma took the patent and developed it into a product that can be purchased off-the-shelf. Link can be found at the bottom https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/251627ce-c550-46d6-81b3-49f164aee4fe/Vision+Pro+Speaker.JPG Portfolio - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/41184902-d7a8-4a5a-bbee-96f703803105/IMG_1366.jpeg Portfolio - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/7841fd8c-f196-4f43-bbd6-a40410764442/IMG_1300.jpeg Portfolio - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1642995810762-17C8FDULLS4O3RYLL8EU/DSC_0116_lighter.jpg Portfolio https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1730705740322-ROQ9QLP9OPAFAZA0W8W0/Turn-i-kit+image.JPG Portfolio https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1737914275820-B0SZR8JUD4IPBURWKZMN/IMG_1309.jpeg Portfolio https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441081868164-EP2GSBJW7DG4CK3Z6WCU/2015-05-04+14.02.07.jpg Portfolio https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441117688475-MDSBPZLI1ZF9JCJIDQ0Q/c1b7838b31865c8a273626d48605f552fcf5.jpg Portfolio https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441121111022-YISSLHQKJ833XOJV8D4L/3c314cd29cbd7bfd063e27d6b7393538d6cf.jpg Portfolio https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441390869815-C2XP52JH1TWO72DADHWM/9e5c7404a37b30e2f9bb3d70846346e31f04.jpg Portfolio https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441390992030-NHWWCP6FTFLMSOP4W4LM/0b7005a2dc0c5f1975a0a99ddc0cfea137e2.jpg Portfolio https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441391164270-FOD7C11UJRTFFKN9JEW4/53e2b7384ef55fa1b1e2e7f8f84d9ecabfef.jpg Portfolio https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441679997657-G7QYPC1I7YSFCOE33TUC/f8c72da527a60c65c10491b45cc672ec7f5b.jpg Portfolio https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441681038411-F8ZQ4TPX1G406CNFD166/boston-dynamics-WildCat-1-google-robot.jpg Portfolio https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441723650749-I3IKVJWFM8IBQNIX6UGJ/15723_364558989530_698284530_3611818_4121728_n.jpg Portfolio https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441725562084-IRALF0AJFF31NMQ29EBE/a90f4d42153a1e25420137ccf735fd24432d.jpg Portfolio https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441727110776-ASDVPL8LE6WSVIQPLSD4/2381d1bea13e22ca7b5417e0ba06601f3746.jpg Portfolio https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1441729061665-A0Z941DMUQHLOO0ZWBK9/00adcdb42569dca7e8cb0bc43b8fffba3377.jpg Portfolio http://www.thuandoan.com/read-me daily 0.75 2015-09-11 https://images.squarespace-cdn.com/content/v1/4fd1028ee4b02be53c65dfb3/1377122138273-T4CY2P9250M4AKM3YGHZ/Brand%27s+creative+mind+%2820130821%29.jpg Read Me https://images.squarespace-cdn.com/content/v1/4fd1028ee4b02be53c65dfb3/1377122430471-3N5PIOOQ8YDNX5VOP807/CRAINE%26JONSON+%2820130821%29.jpg Read Me https://images.squarespace-cdn.com/content/v1/4fd1028ee4b02be53c65dfb3/1377122107913-PW08QOSWT7TOGMPCJLIF/HELLO+ZSO+%2820130821%29.jpg Read Me http://www.thuandoan.com/about daily 1.0 2025-02-08 https://images.squarespace-cdn.com/content/v1/55e14a37e4b099039c5b1541/1599147067603-V1R4U2MNSXGP3I2Y8E3P/DSC_0014.jpg About