<< Moderator note: This thread is missing the homework template due originally being posted in another forum >> Hello, I am required to find the actuator force for a scissor lift. Below are the images of the same: For a scissor lift, with weight W acting on it, I have introduced to links (inverted V). At the centre of these two links, i have attached a linear actuator. Because of this setup, for a lesser stroke of the actuator, I am gaining a greater lift. Now, I should determine the push force required by the actuator. Since the stroke of the actuator and lift are not the same. I need to calculate what should be the push force, for a uniform velocity of the scissor lift. All the variables related to the mechanical system (i.e length of the links, width of the links, required range of rotation angle) are known. Please help me resolve this. Thank you.