Gravity‑Return Bottle Centering Swing Arm Assembly

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Bounding box: 120.0 × 430.0 × 141.4 mm
Engine: Precision B-rep
Parameters: 21
Published: August 10, 2026

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The prompt

Make me a Arm that is used to put pressure ona bottle going down a conveyoer belt fromt he side. I want the Arm to use gravity to go back to the middle postion after each bottle.

Parameters

Name	Value	Range
Pivot tilt angle	10 °	0 – 30
Bracket length (X)	120 mm	50 – 200
Bracket height (Z)	100 mm	50 – 200
Bracket thickness (Y)	10 mm	5 – 20
Pivot bore diameter	20 mm	10 – 30
Shaft diameter	20 mm	10 – 30
Shaft length	140 mm	100 – 200
Arm length (pivot to roller)	300 mm	100 – 500
Arm width (X)	50 mm	20 – 100
Arm thickness (Z)	15 mm	5 – 30
Tail length (beyond pivot)	50 mm	10 – 100
Boss outer diameter	30 mm	20 – 50
Boss length (along pivot)	30 mm	10 – 50
Roller diameter	40 mm	20 – 80
Roller width	30 mm	10 – 60
Axle diameter	8 mm	4 – 15
Axle overall length	90 mm	50 – 150
Roller center X offset	40 mm	0 – 100
Counterweight length (Y)	60 mm	20 – 100
Counterweight width (X)	40 mm	20 – 80
Counterweight height (Z)	40 mm	20 – 80

Every value above is a live dimension. Open a model like this in the editor and each one becomes a slider you can drag before exporting.

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