Update 26.07.2020

Added versions without mounting holes.

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Hall-effect endstops for Creality Ender 3.

Used the work of a groupmate in the telegram chat and redesigned it for my needs.

With these endstops I got rid of loud mechanical endstop bumps during homing.

Endstop use tiny, cheap A3144 hall effect sensor. 10 kΩ pull-up resistor soldered to signal and 5v pins. After that pins are soldered to xh2.54 3Pin connector and put inside printed case. Top covered with epoxy glue for strength and to avoid short circuits

Then small neodymium magnets been glued to X and Y carriages opposite the sensors.

Of course you will need +5v from the mainboard.

At first I wanted to fix them with a threaded insert and a countersunk bolt and designed a hole for them, but in the end I gave up on that cause the endstop goes into place with little effort and holds well in place

Parts I used:

Hall sensor: https://aliexpress.ru/item/32823025060.html

10K resistor: https://aliexpress.ru/item/32869854333.html

xh2.54 connector: https://aliexpress.ru/item/32760531736.html

Neodymium magnet: https://aliexpress.ru/item/32953346950.html

Marlin cnahges:

In Configuration.h

define X_MIN_ENDSTOP_INVERTING true

define Y_MIN_ENDSTOP_INVERTING true

In Configuration_adv.h

define X_HOME_BUMP_MM 20

define Y_HOME_BUMP_MM 20

Category: 3D Printer Accessories