{"id":82860,"key":"OSHE_Growbot_Motor_Encoders","title":"OSHE Growbot Motor Encoders","latest":{"id":1112025,"timestamp":"2024-06-18T20:22:04Z"},"content_model":"wikitext","license":{"url":"https://www.appropedia.org/Appropedia:Copyrights","title":"CC-BY-SA-4.0"},"source":"{{777 notice}}\n\n[[File:Zsa growbot testbench.png|thumb]]\n\n{{Device data\n| manufacturing-files = https://www.youmagine.com/designs/oshe-growbot-encoder-mounts\n}}\n\n{{Project data\n| authors = User:Zsarnold\n| years = 2019\n| made = Yes\n| replicated = No\n| cost = USD 100\n| type = OSHE growbot motor encoders\n}}\n\nThis OSAT project was created to assist the senior capstone project for the Open Source Hardware Enterprise, [[OSHE Growbot]]. The parts designed are used in conjunction with [[User:ajvincen|Drew Vincent's]], [[OSHE Growbot Mounting Units|motor mounts]] for the Growbot. The Growbot project can be used to fulfill the OSAT 'Zero Hunger' goal.\n\n== Bill of Materials ==\n\n[[File:Zsa growbot motorSetUp.png|thumb]]\n\n* Motor Encoders [https://www.youmagine.com/designs/oshe-growbot-encoder-mounts File Download]\n\n'''Encoder Connector'''\n\n{| class=\"wikitable\"\n! Item\n! Quantity\n! Price Per\n! Price Total\n|-\n| Encoder Connector.stl\n| 1\n| 4.7g\n| $0.13\n|-\n| M4x20mm\n| 1\n| $0.10\n| $0.10\n|-\n| M4 Nut\n| 1\n| $0.15\n| $0.15\n|-\n| M3x8mm\n| 4\n| $0.08\n| $0.32\n|-\n| Turnigy SK3 6374 Motor<ref>HobbyKing Motor: https://hobbyking.com/en_us/turnigy-aerodrive-sk3-6374-149kv-brushless-outrunner-motor.html</ref>\n| 1\n| $83.82\n| $83.82\n|}\n\n'''Encoder Mount for Motor Housing'''\n\n{| class=\"wikitable\"\n! Item\n! Quantity\n! Price Per\n! Price Total\n|-\n| Encoder Mount Motor Housing.stl\n| 1\n| 11g\n| $0.31\n|-\n| M3 Heat Insert\n| 4\n| $0.20\n| $0.80\n|-\n| M2 Heat Insert\n| 2\n| $0.15\n| $0.30\n|-\n| M3x10mm\n| 4\n| $0.10\n| $0.40\n|-\n| M2x10mm\n| 2\n| $0.07\n| $0.14\n|-\n| CUI AMT-102-V<ref>DigiKey Encoder: https://www.digikey.com/product-detail/en/cui-devices/AMT102-V/102-1307-ND/827015</ref>\n| 1\n| $23.63\n| $23.63\n|}\n\n'''Motor Test Bench'''\n\n{| class=\"wikitable\"\n! Item\n! Quantity\n! Price Per\n! Price Total\n|-\n| Motor Test Bench V3.stl\n| 1\n| 42g\n| $1.17\n|-\n| Encoder Mount Motor Test Bench.stl\n| 1\n| 10g\n| $0.28\n|-\n| M3 Heat Insert\n| 2\n| $0.20\n| $0.80\n|-\n| M2 Heat Insert\n| 2\n| $0.15\n| $0.30\n|-\n| M4x8\n| 4\n| $0.09\n| $0.36\n|-\n| M3x10mm\n| 4\n| $0.10\n| $0.40\n|-\n| M2x10mm\n| 2\n| $0.07\n| $0.14\n|-\n| CUI AMT-102-V\n| 1\n| $23.63\n| $23.63\n|-\n| Turnigy SK3 6374 Motor\n| 1\n| $83.82\n| $83.82\n|}\n\n== Tools needed ==\n\n# [[AthenaII|MOST Delta RepRap]] or similar RepRap 3-D printer\n# 2mm Allen Wrench\n# 2.5mm Allen Wrench\n# 3mm Allen Wrench\n# Pliers\n# Soldering iron\n\n== Technical Specifications and Assembly Instructions ==\n\n''' Encoder Connector (5 minutes to assemble) '''\n\n# Print the encoder connector and clean the infill - 35mins with 50% infill with Prusa MK3s\n# Push the M4 bolt into the middle hole, so the bolt head is recessed\n# Attach nut on the other side\n# Attach the 3D printed piece onto the motor using 4 M3 bolts\n# Should look like the image below\n\n[[File:Zsa growbot encoderConnector.png|thumb|none|Fig 1: Encoder connector attached to the motor.]]\n\n''' Encoder Mount (10 minutes to assemble) '''\n\n# Print the encoder mount for motor housing - 50mins at 15% infill with Prusa MK3s\n# Use the soldering iron to insert the heat inserts\n#* 2 M2 Heat inserts go into the small holes on the large front face\n#* 4 M3 Heat inserts go into the holes on the edges\n# Attach the encoder to the mount using 2 M2x8 bolts\n# Finally, use this assembly within [[User:ajvincen|Drew's]] motor mount, [[OSHE Growbot Mounting Units]]\n# Should look like the image below\n\n[[File:Ajv motor housing close.PNG|thumb|none|Fig 1: Drew's motor housing with encoder installed.]]\n\n[[File:Zsa growbot encoder.png|thumb|none|Fig 2: Upclose encoder mounting.]]\n\n''' Motor Testbench (40 mins to assemble) '''\n\n# Print the test bench parts - 4.5 hrs at 15% infill with Prusa MK3s\n# Follow the encoder connector directions\n# Follow the encoder mount instructions with 2 M3 inserts instead of 4\n# Attach the motor to the test bench mount using 4 M4x8 bolts\n# Attach the encoder mount onto the test bench using 2 M3x8 bolts\n# Should look like the image below\n\n[[File:Zsa growbot testbench.png|thumb|none|Fig 1: Testbench completed.]]\n\n=== Common Problems and Solutions ===\n\n* A common mistake is when installing the heat inserts. They need to be flush with the outside of the parts and need to be inserted perpendicular.\n\n== Cost savings ==\n\n* This solution is not very cheap if you count the electronics. The entire assembly is ~$100 each due to the motor and encoder cost.\n\n== Benefited Internet Communities ==\n\n* [[Michigan Tech Open Source Hardware Enterprise|OSHE]]\n* [[Community Supported Agriculture]]\n* [[Urban agriculture]]\n* [[Gardening]]\n* [http://www.opensource.org Open Source Community]\n\n== References ==\n\n<references />\n\n{{Page data\n| keywords = 3D printing, farming, osat, oshe, oshe growbot, rotary encoder\n| sdg = SDG02 Zero hunger, SDG08 Decent work and economic growth, SDG09 Industry innovation and infrastructure\n| published = 2019\n| organizations = Michigan_Tech's_Open_Sustainability_Technology_Lab, MY4777, MTU\n| license = CC-BY-SA-3.0\n| language = en\n}}\n\n[[Category:How tos]]\n[[Category:OSHE]]\n[[Category:OSAT 3D-Printable Designs]]\n[[Category:3D printing]]\n[[Category:Farming]]"}