If I am using a 6 in linear actuator with a neo, how would i go about setting up a bottom limit switch to ensure the motor doesnt keep going after it reaches the bottom? I have a good idea on how to set up the top one, since its just a matter of the actuator pressing the switch when fully extended but I’m at a lost for the bottom. Any help/ideas are appreciated.
You can use a magnetic limit switch and embed a magnet in the actuated tube.
Team 1986 was using mechanical limit switches on their climber mechanism, with a piece of the hook coming down around the telescoping tube to contact the switch. You might be able to do something similar with your actuator.
I’m not sure what exactly you’re using the actuator for, but you might also want to consider pneumatics as they don’t need limit switches. But the switch solutions above, particularly the second one, should work well enough.
Another vote for Hall effect sensors… We are using WCP Sensors – WestCoast Products on our climber.
1 Like
The limit switch doesn’t necessarily have to go on the linear actuator - it could go on whatever mechanism is being moved by the actuator!
4 Likes
I see, thank you for the responses.
The link shows only the magnets… is the sensor on a different link?
Hm, maybe they don’t sell them anymore… We just had a couple in our parts bin from before my son joined the team. Adafruit has the sensor itself (Hall effect sensor [US5881LUA] : ID 158 : $2.00 : Adafruit Industries, Unique & fun DIY electronics and kits) or I see on Amazon has them on breakout boards from various third party sellers.
This topic was automatically closed 365 days after the last reply. New replies are no longer allowed.