Arm

[thejonathanouyang]

Description

The Arm system is composed of two links and three motorized joints that position the end effector.

Goals/Constraints

The Arm system must:

• accommodate all functions of the end effector (refer to End Effector design constraints)

Materials:

• Carbon Fiber Tube
• PETG (prototyping)
• PLA (prototyping)

Components:

• Motors
• Positioning Electronics

[thejonathanouyang]

Shopping List (OUTDATED): Carbon Fiber Rods (3 packs of 2: ~$63 before tax): https://www.amazon.com/Carbon-Support-System-inches-Surface/dp/B099RHQPLB/ref=sr_1_3?keywords=carbon%2Bfiber%2Btube%2B15mm&qid=1695087468&sr=8-3&th=1 Worm Gears (2 or 3 [10:1 - 40:1] ~50 before tax): https://www.amazon.com/NMRV030-Worm-Reducer-Speed-Ratio/dp/B09HGLY83H/ref=sr_1_5?crid=3GQ7GST3ZTVJW&keywords=worm%2Bgear%2Bbox&qid=1695087676&sprefix=woprm%2Bgear%2Bboxc%2Caps%2C150&sr=8-5&ufe=app_do%3Aamzn1.fos.006c50ae-5d4c-4777-9bc0-4513d670b6bc&th=1

[thejonathanouyang]

New arm design Design reference: https://www.youtube.com/watch?v=F29vrvUwqS4

[thejonathanouyang]

Planetary Gearbox (1:19): https://www.aliexpress.us/item/3256805729808376.html?src=google&aff_fcid=7319fc0732244bd58f3e1607b24ea0c9-1699589720883-00436-UneMJZVf&aff_fsk=UneMJZVf&aff_platform=aaf&sk=UneMJZVf&aff_trace_key=7319fc0732244bd58f3e1607b24ea0c9-1699589720883-00436-UneMJZVf&terminal_id=2c7e83a9992644db9b964f4a76782a05&afSmartRedirect=y&gatewayAdapt=glo2usa#nav-specification

[thejonathanouyang]

Basic CAD model of arm design: