https://www.javidalasti.com/contact daily 0.75 2021-11-22 https://www.javidalasti.com/home daily 1.0 2024-07-25 https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/1614052937773-6D5FJBGDMNBEYADB8IB6/IMG_1160.JPG Home https://www.javidalasti.com/home/car-restoration monthly 0.5 2021-02-09 https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/1614038148266-PIK2HAB1XHBBRRFKSXAM/IMG_3932.jpg Home - Car Restoration https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/1613638120532-4Z1KWUNE6O1QMDB37UHA/IMG_3440.jpg Home - Car Restoration https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/1613809449599-5YVSAZ8DN01GHOA7HCMO/61143682107__5E74BAA8-1E58-470B-927F-5B99B89F5564.jpg Home - Car Restoration - Dirty and Outdated The car came with old rusted brake shoes, leaky wheel cylinders, and springs that had lost their spring. Even getting the car off the trailer was a challenge with them. https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/1613809485573-B2VIJ1692RRQA1V7OTPG/IMG_3583.jpg Home - Car Restoration - Cleaned and Updated Cleaning all the corrosion off the backing plate took a copious amount of wire brushing and brake cleaner. Afterwards the brakes were rebuilt with modern shoes and cylinders and the drums themselves were resurfaced. The end result was a car with great braking characteristics. https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/1613810438857-ZD7YKV6VFU25Q4TBBZ7Z/IMG_3510.jpg Home - Car Restoration https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/1613810503645-OAOTMVGAEL84A5FLPCI8/IMG_3511.jpg Home - Car Restoration https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/1613810355563-3MDI0BP2AV2MC3LTUIRZ/61233373343__9484A5AE-646F-463B-864A-ED2A1B9F14A0.jpg Home - Car Restoration https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/1613954380447-80R7JYWMCG57UGLQ62GL/IMG_5359.jpg Home - Car Restoration https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/1613954330448-48TQ21RP6LYC5EJQSXZC/IMG_5357.jpg Home - Car Restoration https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/1613954178111-6U93LHDSWNPEYGK60DUI/IMG_3702.jpg Home - Car Restoration https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/1614053190206-HE178Z90IYX2K7TQNIHH/IMG_3793.jpg Home - Car Restoration - Fixing the Floor The car came with several rust holes in the floorpan and no sound insulation whatsoever. To fix this, I cut out the thinnest sections and welded in replacement panels. I also sprayed a layer of sound insulation to help keep the car quiet. https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/1614054152329-VK6EX0QSXR30S859CSVN/61482827578__058986E9-7D9F-40F0-9814-F2A4C61D84AC.jpg Home - Car Restoration - Transmission Adjustments When I got the car, the transmission had been setup so it was stuck in neutral. I had to adjust the shift plunger (seen on the right) using a depth gauge to get the shift points right. This was cool insight into how this mechanical plunger uses pressure differential to decide when to shift. https://www.javidalasti.com/home/delivery-kart monthly 0.5 2021-03-15 https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/1613937957095-2990WETJ7Z6DFHKN1V2A/IMG_3681.jpg Home - Delivery Kart - Starting with a Frame We started by asking the client questions about load, range, and driving style. We settled on a li-ion and brushless motor drivetrain. Once we accounted for his height and the bed length, we knew what size to make the frame. https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/1613938797974-4884FR5LMBA56C89REI5/IMG_3694.jpg Home - Delivery Kart - Getting Comfortable The client requested that we purchase a seat to use instead of building one. We settled on this forklift seat as it was easy to mount, had a seatbelt built in, and was adjustable. The adjustability was important as we wanted to make sure the kart fit the client perfectly, as he would be driving it for long hours. https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/1613939303884-4YYAD8SYVQJNJC2I0TSD/61757601178__9F7DE0CF-E13A-443B-B769-BFA34DBEBD0C.JPG Home - Delivery Kart - Adding Power The chassis of the kart was very similar to my high school go karts. The back axle is brushless driven with a disk brake and the steering is normal Ackerman steering. https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/1613939662563-6H64QK48J6R84S8RTLVY/IMG_3765.jpg Home - Delivery Kart - Finishing Touches After testing was finished, the finishing touches included welding on the truck bed and mounts for a tractor hood, a special request from the client. Finally, we took it down to just the frame one last time for a coat of green paint, to match the John Deere look. https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/1615846964882-DNND0FEUDWB9TVH5DK9Z/IMG_4713.JPG Home - Delivery Kart https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/1615846900440-PJPI5JI1GKW9554VCLFR/IMG_4711.JPG Home - Delivery Kart https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/1615847416727-U5WP21F3G8RPJ6SIAN1Q/IMG_4709.JPG Home - Delivery Kart https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/1615847467907-EYWCNP56IRWC91OAYBR6/IMG_4712.JPG Home - Delivery Kart https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/1615845296951-KD8NBM17YCYUSBGD8DOX/IMG_4710.JPG Home - Delivery Kart - A Great Delivery Vehicle Our end result was a go kart with over 40 miles of range, a top speed around 25 mph, and enough torque to carry over 500 lbs. All it was missing was a nice looking bed, which the client wanted to build himself. This kart represented all the experience we had built with the countless vehicles throughout high school. Here is a photo the client sent after more than 6 months of use, still going strong! https://www.javidalasti.com/home/mechanical-engineering-internship monthly 0.5 2023-12-07 https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/0db0c9bc-fe0a-4274-8fdb-7251788ed296/IMG_5036.png https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/bcd114a9-d278-4b45-81a2-869c410ac910/IMG_4964+%281%29.jpg https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/b8323350-8728-47a5-ad92-fd42ee1db53d/terabase_rover.jpg https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/655c3039-5dd1-4cbf-af96-e9193545b5ad/IMG_4965.png https://www.javidalasti.com/home/bolt-at-virginia-tech monthly 0.5 2023-03-15 https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/1678848113505-6J5OQSXZ4AFCCCMK6R4G/BoltIV_close.jpg https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/c1f0ec47-2cc8-4da9-9e2a-87e31fae0213/Spot+Welded+Module.jpg https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/3c623b81-eeec-4b1f-b1db-db9576746939/ripped+copper.jpg https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/c32e1ab1-cf39-48de-9c50-c9462d7b8637/busbarMachining.png https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/adea25c7-634f-418c-85f9-cf47ca6ae4ff/top+and+bottom+module.jpg https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/3bd05c1d-4052-4419-9594-ab2339c5afeb/busbarCAD.jpg https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/0eddcd38-317b-4459-b652-16d39c31e89f/ABS+stack.png https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/be5d76ae-430e-4d1f-8e94-ee98a09b2c4e/testbenchtop.png https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/bf41cf97-1cd3-4b99-bd14-c40b8c575368/p45b_discharge.jpg https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/609f8edc-108a-436e-a748-bb0fd783498b/dischargecurve.png https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/46d6f6d5-9ea1-455b-88f5-8fab2d938efa/p45b_temp.jpg https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/271e0a74-f5a7-4b44-9d71-e97cca783466/IMG_0196.JPG https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/13074f09-b6d3-47a6-aba9-67e5d366737f/IMG_6394.jpg https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/41be7367-6f90-43e4-b3c6-bc0961fa1250/TestbenchGUI.png https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/092caccd-7f2f-4ec7-87fb-889f3f4ee5c7/2024-07-24+13_31_00-Custom+Resistor-min.png https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/6d999761-a7cc-4906-b133-25dd3a0a0995/Resistor+Calcs.png https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/dcd1381c-b62c-470c-b1ad-dc878d5763f6/ModulePCB.jpg https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/07a17074-cd63-4a58-841c-a59afd4c5db5/ModulePCB_ALTIUM.png https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/c63e1a97-7d47-4d09-b6b2-c72dd4016b1f/ModulePCBCAD.jpg https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/c4d7cb41-55a7-405f-833b-4f9323015fb9/leaning+5s.png https://www.javidalasti.com/home/electric-moped monthly 0.5 2023-09-09 https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/61a64acb-d05a-4853-88e8-62834ef36b63/Moped+CAD.jpg https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/20aa444b-64ee-48fa-9b82-ddf791664f1e/bike1+front.png https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/6d924f1e-00c1-4007-b299-d0dcf1fe027a/Motor+Mount+FEA.png https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/4af057e6-9f18-4a0f-9c67-2f1a5a6aad8b/IMG_7935.jpg https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/94a25b3d-d3e3-4429-a7cb-13810857c7d0/sendcutsend+image.png https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/b6c9f059-f8a5-492c-806b-b94a3dc6e099/Battery+Cutaway.jpg https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/f95e599b-7a2a-40da-9344-a5c89426bd6a/bike1+side.png https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/d1f4eadb-9146-4af1-8faa-a0237d75d885/Bike+frame.png https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/6571894a-682a-4164-aa50-114bd3c518d0/Improved+FEA.png https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/69652043-1549-48f2-a9dd-b9fffe362ba1/Busbar+Calcs.png https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/15d999de-dd28-4c85-b316-93af5d7ded8c/bike+3.png https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/7e941d68-8e42-4f8a-987c-7c93ca7f832f/SPIM+cell.png https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/1c4bceed-6de1-4024-afec-203377a4438f/First+FEA.png https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/1ca1a8ff-b0d4-4913-92cf-6c713c7ddbf1/bike4.png https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/1fe694ce-a5aa-42b9-970e-3c3407ee4524/IMG_7929.png Home - Electric Moped Transferring a SW drawing onto MDF to be cut out. I tried to design the jig to locate the headtube and swingarm axle while allowing welding access. https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/0daa2e29-ab53-4e76-a984-42c801e8e953/IMG_7924.png Home - Electric Moped Bending frame members. It took some practice to get precise bends out of it. https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/8e337019-61d1-434d-bfec-6c066b39d58a/IMG_7931.png Home - Electric Moped Putting the first bent frame members in the jig. https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/d914723e-f567-45af-86b2-7a5f3f511211/IMG_7937.png Home - Electric Moped Second bend put in the bottom bar, test fitting in the full jig with rear datum. https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/22efdf3f-1d9a-4b46-9141-b7e03f26c89a/IMG_7933.png Home - Electric Moped Machining the head tube. I had to machine steps for the thrust bearings. https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/20839de0-506f-4446-9703-eff5f3d6a96f/IMG_8016.JPG Home - Electric Moped Coping side members to meet the head tube. https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/633faf4f-8ddc-41ef-bba8-58792215370e/IMG_7986.JPG Home - Electric Moped Mounting the head tube in the proper position and angle. https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/23ca8d5d-a26d-4c08-b629-0081c91b7ef7/IMG_8020.png Home - Electric Moped Mounted head tube using tacked on washers. https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/3ff059c3-8848-4768-bc80-d49cc67f215f/IMG_8020.png Home - Electric Moped Close up of tube fit to head tube. I didn't have the proper tool for this so I did it with a little "angle grinder artwork". It wasn't perfect, but close enough I was happy. https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/fc8dff82-4ad7-4aa3-9754-c3a02e143570/IMG_8014.png Home - Electric Moped Welded first cross member to fit on jig. https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/4fea2d15-018c-4f6e-b3f5-32dd03d24c34/IMG_8957.png Home - Electric Moped After tacking in the jig, I moved to the vice to have better access for full beads. https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/062462c8-466d-4d28-add6-9025dcf12d6d/IMG_8028.png Home - Electric Moped Test fitting back in the jig after the first welds. https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/60c55f1f-6f1c-4684-9bd4-6d64b11e2f7c/IMG_8058.png Home - Electric Moped Back in the vice for more welding. Welding the bottom members to the top members now. https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/84ca61ae-ed66-41b9-bf46-df42f54658e8/IMG_8147.png Home - Electric Moped Machining notches into a tube to make the swingarm. These notches fit a laser cut plate. https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/0a29e64d-a4bc-438a-b003-59f23b931a3b/71360354357__5980ADF0-D6ED-4CBB-9F6E-A6CB6AB146C2-_1__1.png Home - Electric Moped First tacks of the swingarm. Laser cut plates are on the bottom. You can see I was trying to make this piece very precise based on the drawn measurements. https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/6c0814a1-4121-4a30-a198-58b788471247/IMG_8150.png Home - Electric Moped More welds completed on the swing arm. https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/db1a23ae-beb0-439b-b010-44ea0a72fb9c/IMG_8151.png Home - Electric Moped Test fit of my axle and tensioners. I was overall very happy with how this part turned out. https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/3bb7beef-a32d-4739-a431-d5b65c0730c6/IMG_8159.png Home - Electric Moped Turned threaded inserts for the swingarms. https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/0a9214d2-5ba0-4ad6-9510-07082ae81204/IMG_8163.png Home - Electric Moped Welded inserts in place. I used big plug welds to handle the shear force this joint is under. https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/34e3300d-457e-4a10-86c9-e2ce5b355ad1/IMG_8146.png Home - Electric Moped Setting up the jig for the cross members, motor mounts, and swingarm mounts. Because these parts are concentric, they all need to be aligned perfectly. https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/1f8b630d-5ce1-4e03-8363-6a1c13a23c1b/IMG_8179.png Home - Electric Moped Swingarm mounts are welded in. Bolt spacer were turned and tacked in place. https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/880fbcbd-7a7a-45dc-b9c8-d35c2dcaf275/IMG_8173.png Home - Electric Moped Motor fit looked easy in cad, was very tight in real life! I ended up flipping my fasteners to save a little space. https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/ee835838-85c2-4cfe-9107-c574f46d93a6/IMG_8174.png Home - Electric Moped Testing the belt line using a meter stick as a stand in. https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/44756573-3c1f-488f-b04c-0603cac8a25c/IMG_8177.png Home - Electric Moped Full mock up of the motor and swingarm! I wanted to triple check everything aligned before fully welding in place. https://www.javidalasti.com/home/older-projects monthly 0.5 2024-06-26 https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/c2cd4de5-9610-4299-95f5-e27b31b52e40/IMG_0953.jpg https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/1614031197589-526WQHDOOM2E0SE7EC5A/gokart_1.png Home - Older Projects - Front End Upgrades I also did several things to update the front end for all this new power. I fixed the steering geometry so it would no longer lock by turning new aluminum extensions and brass bushings. https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/1614031137828-0KGNNI45VFR4IM03RGOR/gokart_3.png Home - Older Projects - Mounting an Engine This time I welded a steel engine mount, much stronger than before. The gas engine was taken off a lawn edger and was rebuilt without a governor to better suit a go kart. I then came up with a system to use a bike brake cable to manipulate the throttle plate. https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/1614045034451-V3WMVJ2HJ7TSFG8LGXZZ/IMG_5086.jpg Home - Older Projects https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/1614044955735-HEIAEBWK4UZCAGJ9I66L/IMG_5088.jpg Home - Older Projects https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/1614045103125-GZ7APF0YU2DI42FA7Q26/IMG_5087.jpg Home - Older Projects https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/1614047882822-GGJ3VHD0R1JWSH1N9KKS/IMG_4369.jpg Home - Older Projects https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/1614048206032-BCFP4U9PIQJ6NLMQSSIR/minibike_1.jpg Home - Older Projects https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/1614040975139-FMEQZIGZ7W7868JE6Z2C/doodleBug_1.png Home - Older Projects https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/1613635912135-85MICMVFVZ379YP68T3M/Scooter_1.png https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/d3ca24a7-4944-4ad7-bea1-870d4f5f60ef/IMG_1230.jpg https://images.squarespace-cdn.com/content/v1/6022e60f99e32170c156c3e9/1615239070704-BVHVWFLE2MI2UTPVJBS8/GoKart_wiring_Diagram.png