Optical endstop for 3D printer / CNC / Robotics

Name: Optical endstop for 3D printer / CNC / Robotics
Brand: Official Hobby Components Online Store | Buy Electronic Kits, Components, Boards, Shields, Modules
SKU: SKU-378dd8aa1e00
Price: 0.66 USD
Availability: InStock
Rating: 4.8 (5 reviews)

Optical endstop for 3D printer / CNC / Robotics - Main image

$0.66 ~~$0.92~~ In stock

Category: Sensors

Optical endstop providing a contactless and reliable alternative to the mechanical alternative. Although it is primarily intended to be used with 3D printers and CNC machines, it can be used for other projects such as rotary encoding, position sensing etc. The module comes complete with a cable measuring approximately 50cm.

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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.8 / 5 · 5 reviews)

George X. ★★★★★ Oct 20, 2026

Swapped out my noisy mechanical limit switch for this optical endstop and the difference is night and day. The contactless design means no more false triggers from vibration, and it homes perfectly every time.

Samuel ★★★★★ Oct 19, 2026

Took me ten minutes to wire in and it homed perfectly on the first try, which is more than I can say for the mechanical switch it replaced. The contactless sensing is so much quieter too, no more clicking every time the carriage hits the limit.

Claire ★★★★★ Oct 17, 2026

The contactless design is a huge upgrade—no more missed triggers from a worn-out lever. I set it up on my CNC router and it detects zero reliably every time, even with dust on the sensor.