https://www.ellie-weinstein.com/my-work daily 1.0 2022-05-03 https://images.squarespace-cdn.com/content/v1/607f698e9b9d8e6a2e8a3b56/ad10ebe1-4b8d-422d-abb6-fc204a0b3300/IMG_2284.JPG My Work - About Me I am an enthusiastic, forward-thinking creator with a background in mechanical engineering. My experience has allowed me to prototype products and bring them to market, including a 3D chocolate printer, personalized chocolates, and face shields for pandemic relief. I have a passion for environmental justice, politics, choral singing, and various forms of making, including glassblowing, woodworking, and 3D printing. Skills Industrial and consumer 3D printing CAD – SolidWorks Iterative prototyping process DFM and DFAM Project management Operations and logistics Leadership Problem solving Let’s work together to build something amazing! Email me at ellieweinstein66 at gmail dot com https://www.ellie-weinstein.com/my-work/chess-set monthly 0.5 2021-04-26 https://images.squarespace-cdn.com/content/v1/607f698e9b9d8e6a2e8a3b56/1513367d-5063-42e0-b7b5-cdd6117fff45/IMG_3270.jpeg My Work - Chess Set https://images.squarespace-cdn.com/content/v1/607f698e9b9d8e6a2e8a3b56/3e687816-f192-48d4-b8b5-bbe523a357b0/IMG_2969+2.jpeg My Work - Chess Set https://images.squarespace-cdn.com/content/v1/607f698e9b9d8e6a2e8a3b56/4505a5d7-555f-44bb-b9b5-929ebe65ab8d/IMG_2972.jpeg My Work - Chess Set https://images.squarespace-cdn.com/content/v1/607f698e9b9d8e6a2e8a3b56/129b3cb4-544b-4bc8-8771-5de62c866a50/IMG_2871.jpeg My Work - Chess Set https://images.squarespace-cdn.com/content/v1/607f698e9b9d8e6a2e8a3b56/1619400567486-N9L4ABA3FMJIAGBMQCGG/IMG_2989.jpg My Work - Chess Set https://images.squarespace-cdn.com/content/v1/607f698e9b9d8e6a2e8a3b56/a58cf8b4-fd74-4bf1-91f0-c6290cdf6d12/IMG_2912.jpeg My Work - Chess Set https://www.ellie-weinstein.com/my-work/project-shields monthly 0.5 2022-05-03 https://images.squarespace-cdn.com/content/v1/607f698e9b9d8e6a2e8a3b56/1619042308259-64GODJYYMAGY7YSAG07Y/IMG_2564.jpeg My Work - Project Shields https://images.squarespace-cdn.com/content/v1/607f698e9b9d8e6a2e8a3b56/1619043597627-J77J6J34WZISWEYJZQ75/IMG_2582_2+%281%29.jpg My Work - Project Shields https://images.squarespace-cdn.com/content/v1/607f698e9b9d8e6a2e8a3b56/1619043100800-C6EAQZC7PQIOR8ANNCW4/IMG_4003.jpeg My Work - Project Shields https://images.squarespace-cdn.com/content/v1/607f698e9b9d8e6a2e8a3b56/534e2428-bfb4-4713-a40b-0ddc8c725d99/IMG_2108-scaled.jpeg My Work - Project Shields https://images.squarespace-cdn.com/content/v1/607f698e9b9d8e6a2e8a3b56/9a7fbe55-d7e4-4110-98a8-875247def111/IMG_2558.jpeg My Work - Project Shields https://images.squarespace-cdn.com/content/v1/607f698e9b9d8e6a2e8a3b56/1619041060767-NA52IGS6IB1WAB7CY7C8/IMG_4687.jpg My Work - Project Shields https://images.squarespace-cdn.com/content/v1/607f698e9b9d8e6a2e8a3b56/74868e24-38cd-49e9-9e3a-e10af4e2d94e/PS%2Bsocial%2Bsharing.png My Work - Project Shields https://images.squarespace-cdn.com/content/v1/607f698e9b9d8e6a2e8a3b56/c3da3ca0-d95f-4149-b8b9-9ab09d4936af/IMG_3932.jpeg My Work - Project Shields https://images.squarespace-cdn.com/content/v1/607f698e9b9d8e6a2e8a3b56/29db78d1-c4bf-474f-b55d-d65fa338e263/IMG_3891.png My Work - Project Shields https://www.ellie-weinstein.com/my-work/cocoa-press monthly 0.5 2021-04-27 https://images.squarespace-cdn.com/content/v1/607f698e9b9d8e6a2e8a3b56/1620501262561-H2GHLKJWDIPUYCZZ987V/Cocoa+Press+version+3+-+Charlie+2019-2020.jpg My Work - Cocoa Press Version 3: Charlie 2019-2020 Charlie focused on ease of use, food safety, and design for manufacturing. It featured a stainless steel build chamber, new touch screen interface, and easily adjustable air pressure control. It used thermally conductive filament and 3D printed metal to quickly test hot end geometries. Fun Fact: We had 4 trade shows lined up in the spring of 2020 to show Charlie off when COVID-19 hit the US. https://images.squarespace-cdn.com/content/v1/607f698e9b9d8e6a2e8a3b56/1620501320664-3GLHM1CSJ7S1NO3DQD3M/Cocoa+Press+version+3+update+-+FrankenPrinter+2020.jpg My Work - Cocoa Press Version 3: Update FrankenPrinter 2020 FrankenPrinter combined all of the best parts of our Charlie prototype with a brand new stepper motor driven extruder. This new extruder gave us much more accurate temperature and extrusion control and is the basis for our current design. Fun Fact: FrankenPrinter switched from using single use plastic cartridges to a reusable stainless steel system. https://images.squarespace-cdn.com/content/v1/607f698e9b9d8e6a2e8a3b56/1620500448726-UQ18AHHQKZD4NEPANOM1/Cocoa+Press+version+1+-+2014-2015.jpg My Work - Cocoa Press Version 1: 2014-2015 Cocoa Press started here. It had a custom plywood frame and motorized extruder but had no cooling abilities. I built it from the ground up with inspiration from a Makerbot Replicator I used to print most of the pieces. Fun Fact: The tallest item this version printed was a 13 layer vase. https://images.squarespace-cdn.com/content/v1/607f698e9b9d8e6a2e8a3b56/1620501339316-FOKSOE2J83RPJDM00529/Cocoa+Press+version+4+-+Chef+2020-present.jpg My Work - Cocoa Press Version 4: Chef 2020-Present We tidied up every nut and bolt for Chef. It continues to utilize a vapor compression cooling system, an insulated build chamber, and a double-paned door. It has an updated, all-metal stepper motor driven extruder, and a frame made of food grade stainless steel and powder coated aluminum. Fun Fact: Chef requires a custom thermistor circuit to have a chocolate temperature precision of +- 0.1°C. https://images.squarespace-cdn.com/content/v1/607f698e9b9d8e6a2e8a3b56/1620500335273-E6G295I1N7R3XDZS4GQC/Cocoa+Press+version+1+update+-+2017.jpg My Work - Cocoa Press Version 1: Update 2017 This update used the same frame as the original. It utilized pneumatics for the extruder and peltiers to cool the chocolate after being extruded. Fun Fact: This printer used custom circuitry in place of a stepper motor driver to open and close the pneumatic valve. https://images.squarespace-cdn.com/content/v1/607f698e9b9d8e6a2e8a3b56/1620500370891-LC1PDY4PYTF5TMDI6YM9/Cocoa+Press+version+2+-+ChocolaTier+2018-2019.jpg.png My Work - Cocoa Press Version 2: ChocolaTier 2018-2019 ChocolaTier was my senior design capstone project at the University of Pennsylvania. It featured a sheet metal frame, pneumatic syringe and full vapor compression cooling system. Fun Fact: ChocolaTier had 5 temperature sensors throughout the extruder for precision heating. https://images.squarespace-cdn.com/content/v1/607f698e9b9d8e6a2e8a3b56/1619660555255-NLI493AI9KP5O268NATD/With+Love%2C+Cocoa+Press+Header+2.jpg My Work - Cocoa Press - Business Models With a new category of product, business models have not been defined yet. We had the opportunity to iterate and discover what worked and didn't work. The three main models we experimented with were selling hardware to hobbyists, selling hardware to businesses, and selling chocolate B2B and direct to consumer. https://images.squarespace-cdn.com/content/v1/607f698e9b9d8e6a2e8a3b56/1619660961162-V24JOIT0M7K0C38A7O00/Screen+Shot+2021-04-28+at+9.48.36+PM.png My Work - Cocoa Press - Intellectual Property Even before Cocoa Press was my full time job, I knew my creation was new and unique. I filed a provisional patent in 2018 and a full utility patent in 2019. The patent application covers methods of precisely heating food products, extruding food products, sensing run out, and the use of a cooled enclosure. https://images.squarespace-cdn.com/content/v1/607f698e9b9d8e6a2e8a3b56/1620408950240-C343GN64ODUP64SJ6VIR/Image+from+iOS+%282%29.jpg My Work - Cocoa Press - Team I hired and managed a team of four full-time employees. A dedicated and passionate team is the key to a successful business. It is also important to know when to outsource projects and when to complete them in-house. That is why we worked with multiple independent contractors and companies for work outside our skillset. https://images.squarespace-cdn.com/content/v1/607f698e9b9d8e6a2e8a3b56/1620695145836-SFAXDLIE29F9R9OMY1EP/thermistor+cirucit+2.PNG My Work - Cocoa Press https://images.squarespace-cdn.com/content/v1/607f698e9b9d8e6a2e8a3b56/1619726608847-4J0EBAFS70P8EW0PT67F/IMG_1771+2.jpeg My Work - Cocoa Press https://images.squarespace-cdn.com/content/v1/607f698e9b9d8e6a2e8a3b56/1620695118232-68YBNPAXOZXMR3YB9HS5/Capture3.PNG My Work - Cocoa Press https://images.squarespace-cdn.com/content/v1/607f698e9b9d8e6a2e8a3b56/1619661394944-5J698T5GATZYGLZKBCHM/Unknown.png My Work - Cocoa Press https://images.squarespace-cdn.com/content/v1/607f698e9b9d8e6a2e8a3b56/1619661924786-WWINU4CT9ZUX1CFZDH03/Unknown-2.png My Work - Cocoa Press https://images.squarespace-cdn.com/content/v1/607f698e9b9d8e6a2e8a3b56/1619662048184-T43092TB4XTEOH7UEDNM/1200px-Mashable_Logo.svg.png My Work - Cocoa Press https://images.squarespace-cdn.com/content/v1/607f698e9b9d8e6a2e8a3b56/1619661707387-9QGXKNCBN6ZKY1W2AVY3/nprlogo_rgb_whiteborder_custom-7c06f2837fb5d2e65e44de702968d1fdce0ce748-s800-c85.png My Work - Cocoa Press https://images.squarespace-cdn.com/content/v1/607f698e9b9d8e6a2e8a3b56/1619661526133-J5PGP1QQY1LW1MNPLTZV/Unknown-1.png My Work - Cocoa Press https://images.squarespace-cdn.com/content/v1/607f698e9b9d8e6a2e8a3b56/1619661797276-6VYACDVK8Z5SFPDIPALM/UPDATED-SPACING_Pastry-Arts-Magazine-Logo-Hi-Res-Blue_Crop.png My Work - Cocoa Press https://www.ellie-weinstein.com/my-work/stirling-heat-engine monthly 0.5 2021-04-26 https://images.squarespace-cdn.com/content/v1/607f698e9b9d8e6a2e8a3b56/df8d4376-e104-4f96-b8cc-d6dc09b2fe1d/IMG_3525.JPG My Work - Stirling Engine https://images.squarespace-cdn.com/content/v1/607f698e9b9d8e6a2e8a3b56/25847883-a5c0-4f7b-b69c-01b1b4850c25/IMG_0380.JPG My Work - Stirling Engine https://images.squarespace-cdn.com/content/v1/607f698e9b9d8e6a2e8a3b56/4a08b65b-471e-4750-84f0-aead43501414/Engine+Flywheel+Assemby+Drawing.png My Work - Stirling Engine Assembly drawing for Stirling engine flywheel https://images.squarespace-cdn.com/content/v1/607f698e9b9d8e6a2e8a3b56/649286fd-678a-4aa4-be59-1db99d6f776f/2017-05-03-11h10m13.JPG My Work - Stirling Engine