Design Arm System
30 minutesDefine degrees of freedom, workspace envelope, payload target, and joint actuator types.
Field context
This workflow is part of 4 niche fields
Complete guide for robotic arm project — step-by-step workflow, tools, checklist, and expert tips to get started.
Define degrees of freedom, workspace envelope, payload target, and joint actuator types.
Compute workspace reach, inverse kinematics solutions, and joint torque at full extension.
Fabricate or assemble links, mount servos at joints, and wire power distribution with current limits.
Run IK solver, verify joint limits, test payload at maximum reach, and tune motion profiles.
Determine workspace envelope from link lengths and joint limits.
Compute joint angles for target end-effector positions.
Size joint actuators for payload at maximum arm extension.
Verify actual payload limit matches calculated capacity at full reach.
Key benchmarks for robotic arm project.
| DOF | Task | Complexity |
|---|---|---|
| 2 | Planar reach | Low |
| 4-5 | Pick-place | Medium |
| 6+ | Full pose | High |
Arm joints create pinch and crush hazards — keep hands clear during autonomous motion tests.
Size every joint actuator for max payload at full arm extension — that is the limiting pose.
Print arm links in PETG or ABS — PLA creeps under sustained load and flexes at joint stress.