{"title":"All Product Prototypes","description":"\u003cp\u003e\u003cspan\u003eWe are a mechanical engineering firm that enjoys research and development work in various industries including robotics, bionics, aerospace, and automotive.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis is a collection of all our available product prototypes from our research and development projects including design files, software, firmware, educational kits, and 3D prints.\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e","products":[{"product_id":"robotic-hand","title":"Robotic Hand - 3D Print Files","description":"\u003cul\u003e\n\u003cli\u003eDescription:\n\u003cul\u003e\n\u003cli\u003eSTL and 3MF files and user manual for a proof of concept low-cost 3D printable robotic hand. The user manual includes assembly instructions and a bill of materials for the hardware\/components used.\u003c\/li\u003e\n\u003cli\u003eThe hand is assembled using mostly standard, off-the-shelf components available from typical online retailers including standard servos for each finger, a micro servo for thumb base rotation, and metric fasteners and heat inserts.\u003c\/li\u003e\n\u003cli\u003eThe hand can be printed from PLA, PETG, or other rigid, cost-effective filaments, and the hinges, finger\/palm pads are printed from flexible TPU filament.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e Specifications:\n\u003cul\u003e\n\u003cli\u003eMechanical:\n\u003cul\u003e\n\u003cli\u003eDegrees of freedom:\n\u003cul\u003e\n\u003cli\u003e6 active via servos\u003c\/li\u003e\n\u003cli\u003e9 passive via TPU live hinges\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eDimensions:\n\u003cul\u003e\n\u003cli\u003eOverall Length: 226mm (8.90in)\n\u003cul\u003e\n\u003cli\u003eFrom wrist base screw to extended finger tips\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eOverall Width: 195mm (7.68in)\n\u003cul\u003e\n\u003cli\u003eFrom palm to extended thumb\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eWidth at Palm: 113mm (4.45in)\u003c\/li\u003e\n\u003cli\u003eThickness at Palm: 53.5mm (2.11in)\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eWeight: Approx. 685g (1.5lbs)\u003c\/li\u003e\n\u003cli\u003eWrist Attachment:\n\u003cul\u003e\n\u003cli\u003eFour M3 screws\u003c\/li\u003e\n\u003cli\u003eWrist adapter converts the four M3 screws to one M12mm-1.50x30mm or 1\/2in-20x1-1\/4in hex cap screw\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eLift Capacity:\n\u003cul\u003e\n\u003cli\u003eTested in-house up to approx. 27.2kg (60lbs)\u003c\/li\u003e\n\u003cli\u003eUsing four finger hook power grip\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eElectrical:\n\u003cul\u003e\n\u003cli\u003eInput: RJ45 ethernet connection\n\u003cul\u003e\n\u003cli\u003ePin 1: Gnd\u003c\/li\u003e\n\u003cli\u003ePin 2: Vin (~7.4VDC input)\u003c\/li\u003e\n\u003cli\u003ePin 3: Thumb Base Servo\u003c\/li\u003e\n\u003cli\u003ePin 4: Pinky Servo\u003c\/li\u003e\n\u003cli\u003ePin 5: Ring Finger Servo\u003c\/li\u003e\n\u003cli\u003ePin 6: Middle Finger Servo\u003c\/li\u003e\n\u003cli\u003ePin 7: Index Finger Servo\u003c\/li\u003e\n\u003cli\u003ePin 8: Thumb Servo\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eEnclosure: Dust and Water Resistant\n\u003cul\u003e\n\u003cli\u003eThe enclosure and standard servos are not waterproof. Exposure to full water submersion or water jets is not recommended and may damage the electronics.\u003c\/li\u003e\n\u003cli\u003eNot certified or tested for international electrotechnical commission (IEC) ingress protection (IP) ratings.\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eLicensing:\n\u003cul\u003e\n\u003cli\u003eThe fingers and hinges for the robotic hand are adapted from \u003ca href=\"https:\/\/www.thingiverse.com\/thing:242639\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eFlexy-Hand\u003c\/a\u003e \u003cspan\u003eby\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.thingiverse.com\/Gyrobot\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eGyrobot\u003c\/a\u003e,\u003cspan\u003e used\u003c\/span\u003e\u003cspan\u003e under \u003ca href=\"https:\/\/creativecommons.org\/licenses\/by-nc-sa\/4.0\/\" rel=\"noopener\" target=\"_blank\"\u003eCC BY-NC-SA 4.0\u003c\/a\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003ca href=\"https:\/\/jdnelsonpe.com\/collections\/robotic-hand\" rel=\"noopener\" target=\"_blank\"\u003eRobotic Hand\u003c\/a\u003e © 2026 by \u003ca href=\"https:\/\/jdnelsonpe.com\/\" rel=\"noopener\" target=\"_blank\"\u003eJerod Nelson\u003c\/a\u003e is licensed under \u003ca href=\"https:\/\/creativecommons.org\/licenses\/by-nc-sa\/4.0\/\" rel=\"noopener\" target=\"_blank\"\u003eCC BY-NC-SA 4.0\u003c\/a\u003e\u003c\/span\u003e\u003cspan class=\"Yjhzub\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Jerod D. Nelson, PE, PLLC","offers":[{"title":"Default Title","offer_id":48173554893041,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0796\/8165\/0929\/files\/Front.jpg?v=1780362124"},{"product_id":"robotic-hand-bluetooth-app","title":"Robotic Hand - Software and Firmware","description":"\u003cul\u003e\n\u003cli\u003eDescription:\n\u003cul\u003e\n\u003cli\u003eThis is an optional control means\/method for the robotic hands (large and small hands) using an Arduino Nano microcontroller and an Android device.\n\u003cul\u003e\n\u003cli\u003eIncludes Version 0.1 of the robotic hand Bluetooth Android application and Arduino microcontroller firmware.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eThe application allows an Android device to be used as the user interface for an Arduino microcontroller via Bluetooth.\n\u003cul\u003e\n\u003cli\u003eThe application was developed using MIT App Inventor and is currently designed for Android operating systems (APK file format) using Bluetooth classic.\u003c\/li\u003e\n\u003cli\u003eThe application was not designed for and has not been tested with Apple products using Bluetooth Low Energy.\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eThe Arduino microcontroller firmware allows users to control the robotic hands using the integral toggle switch and slider in the application, a single potentiometer, or a hobby-level EMG sensor.\n\u003cul\u003e\n\u003cli\u003eFor those with minimal coding experience, the firmware HEX file can be flashed directly onto an Arduino Nano microcontroller via the \u003ca href=\"https:\/\/arduino-web-flasher.onrender.com\/\" target=\"_blank\"\u003eArduino Web Flasher Tool\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003eThe microcontroller firmware was developed around the \u003ca href=\"https:\/\/www.dfrobot.com\/product-1661.html\"\u003eGravity: Analog EMG Sensor by OYMotion\u003c\/a\u003e available from \u003ca href=\"https:\/\/www.dfrobot.com\"\u003eDFRobot\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eLicensing:\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003ca rel=\"noopener\" href=\"https:\/\/jdnelsonpe.com\/collections\/robotic-hand\" target=\"_blank\"\u003eRobotic Hand\u003c\/a\u003e © 2026 by \u003ca rel=\"noopener\" href=\"https:\/\/jdnelsonpe.com\/\" target=\"_blank\"\u003eJerod Nelson\u003c\/a\u003e is licensed under \u003ca rel=\"noopener\" href=\"https:\/\/creativecommons.org\/licenses\/by-nc-sa\/4.0\/\" target=\"_blank\"\u003eCC BY-NC-SA 4.0\u003c\/a\u003e\u003c\/span\u003e\u003cspan class=\"Yjhzub\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Jerod D. Nelson, PE, PLLC","offers":[{"title":"Default Title","offer_id":48168948039921,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0796\/8165\/0929\/files\/BTHANDAPPLOGO.jpg?v=1778630005"},{"product_id":"robotic-hand-pcb-files","title":"Robotic Hand - PCB Files","description":"\u003cul\u003e\n\u003cli\u003eDescription:\n\u003cul\u003e\n\u003cli\u003eGerber files and user manual for the robotic hand and controller printed circuit boards (PCBs). User manual includes assembly instructions and a bill of materials for the hardware\/components used.\u003c\/li\u003e\n\u003cli\u003eThe PCB components are intended to be standard, off-the-shelf parts that can be purchased from various online retailers and electronics distributors including an Arduino Nano microcontroller, RJ45 ethernet jacks, and 2.54mm spaced pins and connectors.\u003c\/li\u003e\n\u003cli\u003eThe PCBs can be ordered from various PCB manufacturers and distributors including \u003ca href=\"https:\/\/www.digikey.com\/en\/pcb-builder\/\"\u003eDigiKey\u003c\/a\u003e, \u003ca href=\"https:\/\/www.pcbway.com\/QuickOrderOnline.aspx\"\u003ePCBWay\u003c\/a\u003e, and \u003ca href=\"https:\/\/jlcpcb.com\/\"\u003eJLCPCB\u003c\/a\u003e by uploading the Gerber files.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eOnce your PCBs arrive from the manufacturer, the components can be soldered and firmware can be flashed onto the microcontroller.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eLicensing:\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e\u003ca href=\"https:\/\/jdnelsonpe.com\/collections\/robotic-hand\" rel=\"noopener\" target=\"_blank\"\u003eRobotic Hand\u003c\/a\u003e © 2026 by \u003ca href=\"https:\/\/jdnelsonpe.com\/\" rel=\"noopener\" target=\"_blank\"\u003eJerod Nelson\u003c\/a\u003e is licensed under \u003ca href=\"https:\/\/creativecommons.org\/licenses\/by-nc-sa\/4.0\/\" rel=\"noopener\" target=\"_blank\"\u003eCC BY-NC-SA 4.0\u003c\/a\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Jerod D. Nelson, PE, PLLC","offers":[{"title":"Default Title","offer_id":48246296510705,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0796\/8165\/0929\/files\/PCB_PCB1_2026-06-03.png?v=1780595953"},{"product_id":"controller-3d-print-files","title":"Controller - 3D Print Files","description":"\u003cul\u003e\n\u003cli\u003eDescription:\n\u003cul\u003e\n\u003cli\u003eSTL and 3MF files and user manual for a proof of concept low-cost 3D printable robotic hand controller. User manual includes assembly instructions and a bill of materials for the hardware\/components used.\u003c\/li\u003e\n\u003cli\u003eThe controller is assembled using mostly standard, off-the-shelf components available from typical online retailers including the microcontroller, Bluetooth module, ethernet and USB-C connectors, batteries, and metric fasteners and heat inserts.\u003c\/li\u003e\n\u003cli\u003eThe controller enclosure can be printed from PLA, PETG, or other rigid, cost-effective filaments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e Specifications:\n\u003cul\u003e\n\u003cli\u003eElectrical:\n\u003cul\u003e\n\u003cli\u003eOutput: RJ45 ethernet connection\n\u003cul\u003e\n\u003cli\u003ePin 1: Gnd\u003c\/li\u003e\n\u003cli\u003ePin 2: Vin (~7.4VDC input)\u003c\/li\u003e\n\u003cli\u003ePin 3: Thumb Base Servo\u003c\/li\u003e\n\u003cli\u003ePin 4: Pinky Servo\u003c\/li\u003e\n\u003cli\u003ePin 5: Ring Finger Servo\u003c\/li\u003e\n\u003cli\u003ePin 6: Middle Finger Servo\u003c\/li\u003e\n\u003cli\u003ePin 7: Index Finger Servo\u003c\/li\u003e\n\u003cli\u003ePin 8: Thumb Servo\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eEnclosure: Dust and Water Resistant\n\u003cul\u003e\n\u003cli\u003eThe enclosure and components are not waterproof. Exposure to full water submersion or water jets is not recommended and may damage the electronics.\u003c\/li\u003e\n\u003cli\u003eNot certified or tested for international electrotechnical commission (IEC) ingress protection (IP) ratings.\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eLicensing:\n\u003cul\u003e\n\u003cli\u003eThe fingers and hinges for the robotic hand are adapted from \u003ca href=\"https:\/\/www.thingiverse.com\/thing:242639\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eFlexy-Hand\u003c\/a\u003e \u003cspan\u003eby\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.thingiverse.com\/Gyrobot\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eGyrobot\u003c\/a\u003e,\u003cspan\u003e used\u003c\/span\u003e\u003cspan\u003e under \u003ca href=\"https:\/\/creativecommons.org\/licenses\/by-nc-sa\/4.0\/\" rel=\"noopener\" target=\"_blank\"\u003eCC BY-NC-SA 4.0\u003c\/a\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003ca href=\"https:\/\/jdnelsonpe.com\/collections\/robotic-hand\" rel=\"noopener\" target=\"_blank\"\u003eRobotic Hand\u003c\/a\u003e © 2026 by \u003ca href=\"https:\/\/jdnelsonpe.com\/\" rel=\"noopener\" target=\"_blank\"\u003eJerod Nelson\u003c\/a\u003e is licensed under \u003ca href=\"https:\/\/creativecommons.org\/licenses\/by-nc-sa\/4.0\/\" rel=\"noopener\" target=\"_blank\"\u003eCC BY-NC-SA 4.0\u003c\/a\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Jerod D. Nelson, PE, PLLC","offers":[{"title":"Default Title","offer_id":48655255240945,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0796\/8165\/0929\/files\/Controller_Box.jpg?v=1782252970"},{"product_id":"small-robotic-hand","title":"Small Robotic Hand - 3D Print Files","description":"\u003cul\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\n\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eDescription:\u003c\/span\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\n\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eSTL and 3MF files and user manual for a proof of concept low-cost 3D printable robotic hand. \u003c\/span\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eThe user manual includes assembly instructions and a bill of materials for the hardware\/components used.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eThe hand is assembled using mostly standard, off-the-shelf components available from typical online retailers including standard micro servos for each finger and thumb base rotation, and metric fasteners and heat inserts.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eThe hand can be printed from PLA, PETG, or other rigid, cost-effective filaments, and the hinges, finger\/palm pads are printed from flexible TPU filament.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\n\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eThe hand design is ambidextrous, meaning the same 3D printed parts and components can be assembled into either a right or left hand, simplifying assembly.\u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\n\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e Specifications:\u003c\/span\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\n\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eMechanical:\u003c\/span\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\n\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eDegrees of freedom:\u003c\/span\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e6 active via servos\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e4 passive via TPU live hinges\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\n\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eDimensions:\u003c\/span\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\n\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eOverall Length: 172mm (6.77in)\u003c\/span\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eFrom wrist base screw to extended finger tips\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\n\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eOverall Width: 116mm (4.57in)\u003c\/span\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eFrom palm to extended thumb\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eWidth at Palm: 69.5mm (2.74in)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\n\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eThickness at Palm: 51.5mm (2.03in)\u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eWeight: Approx. 290g (0.64lbs)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\n\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eWrist Attachment:\u003c\/span\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eFour M3 screws\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\n\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eWrist adapter converts the four M3 screws to one M12mm-1.50x30mm or 1\/2in-20x1-1\/4in hex cap screw\u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\n\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eLift Capacity:\u003c\/span\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003eTested in-house up to approx. 9.1-10.0kg (20-22lbs)\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eUsing four finger hook power grip\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\n\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eElectrical:\u003c\/span\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\n\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eInput: RJ45 ethernet connection\u003c\/span\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003ePin 1: Gnd\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003ePin 2: Vin (~7.4VDC input)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003ePin 3: Thumb Base Servo\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003ePin 4: Pinky Servo\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003ePin 5: Ring Finger Servo\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003ePin 6: Middle Finger Servo\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003ePin 7: Index Finger Servo\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003ePin 8: Thumb Servo\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\n\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eEnclosure: Dust and Water Resistant\u003c\/span\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eThe enclosure and standard servos are not waterproof. Exposure to full water submersion or water jets is not recommended and may damage the electronics.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\n\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eNot certified or tested for international electrotechnical commission (IEC) ingress protection (IP) ratings.\u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\n\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eLicensing:\u003c\/span\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eThe fingers and hinges for the robotic hand are adapted from \u003ca href=\"https:\/\/www.thingiverse.com\/thing:242639\" rel=\"noopener noreferrer\" style=\"color: rgb(0, 0, 0);\" target=\"_blank\"\u003eFlexy-Hand\u003c\/a\u003e by \u003ca href=\"https:\/\/www.thingiverse.com\/Gyrobot\" rel=\"noopener noreferrer\" style=\"color: rgb(0, 0, 0);\" target=\"_blank\"\u003eGyrobot\u003c\/a\u003e, used under \u003ca href=\"https:\/\/creativecommons.org\/licenses\/by-nc-sa\/4.0\/\" rel=\"noopener\" style=\"color: rgb(0, 0, 0);\" target=\"_blank\"\u003eCC BY-NC-SA 4.0\u003c\/a\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003ca href=\"https:\/\/jdnelsonpe.com\/collections\/robotic-hand\" rel=\"noopener\" style=\"color: rgb(0, 0, 0);\" target=\"_blank\"\u003eRobotic Hand\u003c\/a\u003e © 2026 by \u003ca href=\"https:\/\/jdnelsonpe.com\/\" rel=\"noopener\" style=\"color: rgb(0, 0, 0);\" target=\"_blank\"\u003eJerod Nelson\u003c\/a\u003e is licensed under \u003ca href=\"https:\/\/creativecommons.org\/licenses\/by-nc-sa\/4.0\/\" rel=\"noopener\" style=\"color: rgb(0, 0, 0);\" target=\"_blank\"\u003eCC BY-NC-SA 4.0\u003c\/a\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Jerod D. Nelson, PE, PLLC","offers":[{"title":"Default Title","offer_id":48658134532337,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0796\/8165\/0929\/files\/Small_Hand_Front_-_Updated.jpg?v=1792615570"},{"product_id":"robotic-hand-developer-kit","title":"Robotic Hand - Developer Kit","description":"\u003cul\u003e\n\u003cli\u003eDescription:\n\u003cul\u003e\n\u003cli\u003eDeveloper kit for our open source 3D printed robotic hand.\u003c\/li\u003e\n\u003cli\u003eFully assembled hand constructed using black PETG or PLA for the enclosure, and black TPU for the pads and hinges.\u003c\/li\u003e\n\u003cli\u003eStandard servos and high torque micro servo with PWM (pulse width modulation) input via custom PCB (printed circuit board) with RJ45 ethernet connection.\u003c\/li\u003e\n\u003cli\u003eIncludes ethernet breakout board and stand.\u003c\/li\u003e\n\u003cli\u003eBreadboard, microcontroller, ethernet cable, and jumper wires are not included.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e Specifications:\n\u003cul\u003e\n\u003cli\u003eMechanical:\n\u003cul\u003e\n\u003cli\u003eDegrees of freedom:\n\u003cul\u003e\n\u003cli\u003e6 active via servos\u003c\/li\u003e\n\u003cli\u003e9 passive via TPU live hinges\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eDimensions:\n\u003cul\u003e\n\u003cli\u003eOverall Length: 200mm (7.90in)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eOverall Width: 195mm (7.68in) from palm to extended thumb\u003c\/li\u003e\n\u003cli\u003eWidth at Palm: 113mm (4.45in)\u003c\/li\u003e\n\u003cli\u003eThickness at Palm: 53.5mm (2.11in)\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eWeight: Approx. 627g (1.4lbs)\u003c\/li\u003e\n\u003cli\u003eLift Capacity: Approx. 27.2kg (60lbs) using four finger hook power grip\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eElectrical:\n\u003cul\u003e\n\u003cli\u003eInput: RJ45 ethernet connection\n\u003cul\u003e\n\u003cli\u003ePin 1: Gnd\u003c\/li\u003e\n\u003cli\u003ePin 2: Vin (~7.4VDC input)\u003c\/li\u003e\n\u003cli\u003ePin 3: Thumb Base Servo\u003c\/li\u003e\n\u003cli\u003ePin 4: Pinky Servo\u003c\/li\u003e\n\u003cli\u003ePin 5: Ring Finger Servo\u003c\/li\u003e\n\u003cli\u003ePin 6: Middle Finger Servo\u003c\/li\u003e\n\u003cli\u003ePin 7: Index Finger Servo\u003c\/li\u003e\n\u003cli\u003ePin 8: Thumb Servo\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eEnclosure: Dust and Water Resistant\n\u003cul\u003e\n\u003cli\u003eThe enclosure and standard servos are not waterproof. Exposure to full water submersion or water jets is not recommended and may damage the electronics.\u003c\/li\u003e\n\u003cli\u003eNot certified or tested for international electrotechnical commission (IEC) ingress protection (IP) ratings.\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eLicensing:\n\u003cul\u003e\n\u003cli\u003eThe fingers and hinges for the robotic hand are adapted from \u003ca href=\"https:\/\/www.thingiverse.com\/thing:242639\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eFlexy-Hand\u003c\/a\u003e \u003cspan\u003eby\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.thingiverse.com\/Gyrobot\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eGyrobot\u003c\/a\u003e,\u003cspan\u003e used\u003c\/span\u003e\u003cspan\u003e under \u003ca href=\"https:\/\/creativecommons.org\/licenses\/by-nc-sa\/4.0\/\" rel=\"noopener\" target=\"_blank\"\u003eCC BY-NC-SA 4.0\u003c\/a\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003ca href=\"https:\/\/jdnelsonpe.com\/collections\/robotic-hand\" rel=\"noopener\" target=\"_blank\"\u003eRobotic Hand\u003c\/a\u003e © 2026 by \u003ca href=\"https:\/\/jdnelsonpe.com\/\" rel=\"noopener\" target=\"_blank\"\u003eJerod Nelson\u003c\/a\u003e is licensed under \u003ca href=\"https:\/\/creativecommons.org\/licenses\/by-nc-sa\/4.0\/\" rel=\"noopener\" target=\"_blank\"\u003eCC BY-NC-SA 4.0\u003c\/a\u003e\u003c\/span\u003e\u003cspan class=\"Yjhzub\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Jerod D. Nelson, PE, PLLC","offers":[{"title":"Left Hand","offer_id":67294826365169,"sku":null,"price":299.0,"currency_code":"USD","in_stock":true},{"title":"Right Hand","offer_id":67294826397937,"sku":null,"price":299.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0796\/8165\/0929\/files\/RobotHandDevKit-FrontAssembled.jpg?v=1792788996"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0796\/8165\/0929\/collections\/Gear_Icon_2.png?v=1792785333","url":"https:\/\/jdnelsonpe.com\/collections\/all-product-prototypes.oembed","provider":"Jerod D. Nelson, PE, PLLC","version":"1.0","type":"link"}