Two Point Door Lock

lets make a strong two point lock

we need

• 3d printer
• epoxic glue
• instant glue
• 3mm shaft
• 12mm shaft
• geared motor
• 2 releys
• 2 terminal switches
• dc to dc step down converter (if needed to slow down the motor)
• input signal (i use motorbike alarm system (because of the control's code))

print the .stl file

you may modify the motor's holder

glue the 3mm shaft for the central gear

• glue the lock's holders if needed
• press it well

mark the shafts to glue them with the 3d printed parts

• cut a little the 12mm shafts for a strong holding
• glue with the epoxy shaft and 3d printed parts

• add the 12mm shafts on the lock-door
• assemble all the parts

make a simple h-bridge with 2 relays

that must have

• 2 inputs for relays
• 2 inputs for terminal switches
• dc input
• output to motor

add the motor and conect the wires

add the terminal switches like the pics (i use instant glue)

glue them at the corect point for the lock-unlock distance

if it broken good luck!!

you must always have a plan b to get in

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off grid crafts