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Effector Lab

Effector library

Servo screwdriver attachment for a hobby arm

A printed screwdriver head: a servo turns a hex bit holder about the tool axis, mounted on a hobby arm's wrist.

Powered toolProxyEntrantMIT

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Facts

Kind
Powered tool
Class
Open hardware (buildable)
Capabilities
  • twistturns a part or a feature about the wrist axis
  • toola powered or passive tool rather than a grasp
Mount
A hobby arm's wrist (servo holder with a camera mount).ISO pattern: none (own interface)

Specifications

SpecValueBasisSource
Drivea hobby servo turns the bit holderSourcedSource
Spindle speed and torque in the proxy10 rad/s, 0.5 N mAssumedour assumption, not read from a source

Simulation

Status
ProxyGenerated simulation proxy
Model source
Rigid proxy of the servo holder plus a spindle body (the bit holder on a hinge, velocity servo).
Fidelity
Rigid model
Model
1 actuator · 6 g
Note
Spindle speed and torque are assumed hobby-servo values; the bit holder is placed on the tool axis under the holder (the upstream files carry no assembly).
Tournament
Entrant1 entrant spec in the effector tournament.

Compile and attach gate

Each entrant spec is built in the tournament's shared scene on every training part. One nominal episode per built part (no placement error, seed 0) is information, not part of the gate.

Servo screwdriver attachment for a hobby arm

GATE PASSED
Primitive
hold
Actuators
1
Mass
6 g
Reach
77.5 mm
Opening
n/a
Training partGateHeld (nominal)Nominal outcomePenetrationWhy refused
BlockbuiltnoMissed grasp0.13 mm
Steel slugbuiltnoMissed grasp0.16 mm
Hex standoffbuiltnoMissed grasp0.18 mm
L-bracketbuiltnoMissed grasp0.14 mm
Pipe teebuiltnoMissed grasp0.13 mm
Flanged bushingbuiltnoMissed grasp0.18 mm

Held on no training part in the nominal episode.

Licence

Licence rating: green. Full attribution: see the credits page.

Files

FileTypeSizeLicenceChanged
bit_holder.scadassets/effectors/library/tool-screwdriver-servo/cad/bit_holder.scadCAD1.9 kBMITas upstream
servo_holder.scadassets/effectors/library/tool-screwdriver-servo/cad/servo_holder.scadCAD3.2 kBMITas upstream
bit_holder.stlassets/effectors/library/tool-screwdriver-servo/print/bit_holder.stlPrint file63.1 kBMITas upstream
servo_holder.stlassets/effectors/library/tool-screwdriver-servo/print/servo_holder.stlPrint file91.4 kBMITas upstream
bit_0.objassets/effectors/library/tool-screwdriver-servo/sim/pieces/bit_0.objSimulation file (derived)1.1 kBMITmodified
bit_1.objassets/effectors/library/tool-screwdriver-servo/sim/pieces/bit_1.objSimulation file (derived)1.8 kBMITmodified
bit_10.objassets/effectors/library/tool-screwdriver-servo/sim/pieces/bit_10.objSimulation file (derived)1.3 kBMITmodified
bit_11.objassets/effectors/library/tool-screwdriver-servo/sim/pieces/bit_11.objSimulation file (derived)1.4 kBMITmodified
bit_12.objassets/effectors/library/tool-screwdriver-servo/sim/pieces/bit_12.objSimulation file (derived)2.1 kBMITmodified
bit_13.objassets/effectors/library/tool-screwdriver-servo/sim/pieces/bit_13.objSimulation file (derived)889 BMITmodified
bit_14.objassets/effectors/library/tool-screwdriver-servo/sim/pieces/bit_14.objSimulation file (derived)517 BMITmodified
bit_15.objassets/effectors/library/tool-screwdriver-servo/sim/pieces/bit_15.objSimulation file (derived)1.7 kBMITmodified
bit_2.objassets/effectors/library/tool-screwdriver-servo/sim/pieces/bit_2.objSimulation file (derived)1.5 kBMITmodified
bit_3.objassets/effectors/library/tool-screwdriver-servo/sim/pieces/bit_3.objSimulation file (derived)1.4 kBMITmodified
bit_4.objassets/effectors/library/tool-screwdriver-servo/sim/pieces/bit_4.objSimulation file (derived)1.7 kBMITmodified
bit_5.objassets/effectors/library/tool-screwdriver-servo/sim/pieces/bit_5.objSimulation file (derived)2.6 kBMITmodified
bit_6.objassets/effectors/library/tool-screwdriver-servo/sim/pieces/bit_6.objSimulation file (derived)2.3 kBMITmodified
bit_7.objassets/effectors/library/tool-screwdriver-servo/sim/pieces/bit_7.objSimulation file (derived)1.6 kBMITmodified
bit_8.objassets/effectors/library/tool-screwdriver-servo/sim/pieces/bit_8.objSimulation file (derived)1.2 kBMITmodified
bit_9.objassets/effectors/library/tool-screwdriver-servo/sim/pieces/bit_9.objSimulation file (derived)3.2 kBMITmodified
holder_0.objassets/effectors/library/tool-screwdriver-servo/sim/pieces/holder_0.objSimulation file (derived)7.1 kBMITmodified
holder_1.objassets/effectors/library/tool-screwdriver-servo/sim/pieces/holder_1.objSimulation file (derived)8.2 kBMITmodified
holder_10.objassets/effectors/library/tool-screwdriver-servo/sim/pieces/holder_10.objSimulation file (derived)6.5 kBMITmodified
holder_11.objassets/effectors/library/tool-screwdriver-servo/sim/pieces/holder_11.objSimulation file (derived)4.1 kBMITmodified
holder_12.objassets/effectors/library/tool-screwdriver-servo/sim/pieces/holder_12.objSimulation file (derived)2.8 kBMITmodified
holder_13.objassets/effectors/library/tool-screwdriver-servo/sim/pieces/holder_13.objSimulation file (derived)1.3 kBMITmodified
holder_14.objassets/effectors/library/tool-screwdriver-servo/sim/pieces/holder_14.objSimulation file (derived)3.7 kBMITmodified
holder_15.objassets/effectors/library/tool-screwdriver-servo/sim/pieces/holder_15.objSimulation file (derived)5.0 kBMITmodified
holder_2.objassets/effectors/library/tool-screwdriver-servo/sim/pieces/holder_2.objSimulation file (derived)4.0 kBMITmodified
holder_3.objassets/effectors/library/tool-screwdriver-servo/sim/pieces/holder_3.objSimulation file (derived)3.8 kBMITmodified
holder_4.objassets/effectors/library/tool-screwdriver-servo/sim/pieces/holder_4.objSimulation file (derived)4.2 kBMITmodified
holder_5.objassets/effectors/library/tool-screwdriver-servo/sim/pieces/holder_5.objSimulation file (derived)6.4 kBMITmodified
holder_6.objassets/effectors/library/tool-screwdriver-servo/sim/pieces/holder_6.objSimulation file (derived)1.6 kBMITmodified
holder_7.objassets/effectors/library/tool-screwdriver-servo/sim/pieces/holder_7.objSimulation file (derived)6.6 kBMITmodified
holder_8.objassets/effectors/library/tool-screwdriver-servo/sim/pieces/holder_8.objSimulation file (derived)6.0 kBMITmodified
holder_9.objassets/effectors/library/tool-screwdriver-servo/sim/pieces/holder_9.objSimulation file (derived)7.9 kBMITmodified
tool-screwdriver-servo.xmlassets/effectors/library/tool-screwdriver-servo/sim/tool-screwdriver-servo.xmlSimulation file (derived)4.7 kBMITmodified

Each file links to its copy in the repository. Licence texts sit next to them in LICENSES/. What changed is on the credits page.

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