Hi,
I’m very new to this field, with a basic knowledge of how actuators work (some using PWM controllers and some using DC?).
Basically I’m after using four linear actuators with 600mm (24") stroke to raise and lower a bed.
Originally I planned to use four cheap basic linear actuators using straight 24V DC (one in each corner) to do the job, being powered by a switch via a relay. The problem I envisage is that the load will not be equally distributed, no matter how well I try there will always be sticking points, which could cause issues with all four actuators joined electrically.
Without spending hours researching the different options out there, I’d like to ask you what you would do?
The bed is likely to weigh in at under 70kg in total (it won’t be moved with people on it), and will only be operated for short periods of time. They will be setup to extend when raising the bed, and will only ever carry people in it’s lower most position.
I look forward to hearing about the possible options.
Mik