And then I might this far. Right here right here. This is another view and when you pull up on it you can see the force translates into a right. Right on the bar which makes this dress come up so fast like his eye is from the basic principle of this is actually a linear slide. It's all the choice like cut out ancestor of all this stuff and test them to the fullest. So it's basically I got a handle and a lot of force. I will slide out a slot on our seat and this. Well some more of us up with your head then you're probably going to actually talk at certain points and in your head of the drop down interest for a house or anything that matter. There are some design flaws right now with a mock up this is your slide that is not a track. So the focus of actually looks better future for us. I think the issue in a factory or if your doctor and also I do one out that all lock mechanism is automatic to tell you what it is like most of the neck is above the tracks like so what they hear is the moment on which connects the foot rest to the tracks like and this allows the vertical motion going up of the fan to translate into pulling into foot rest so see that when I apply upward force on the handle. No but are on soft soft extending to that angle of lift and if you keep pulling you put the focus to self and you keep pulling up for the president by the way this is going to rise designed it's operated by using his which troops is not on the side of the altar and the waiting let the offering part of this is whether or not the back breaker here which works for one whole year here which is attached to the axle just has to put it there. So this is Isaac fully automatic which means he's never had to touch the interface the disadvantages and this is the cost and this is not a it's a difficult rudder issues with lock up is a lack of variable speed our lever switches to constrain the range of motion and the rest of the progressed and every will function the case to move it around. All right so this is our close up of the motor as. As you can see the motor is mounted right here and it goes from here to our police system which has a smaller gear and has two larger gear to slow down the foot rest brazing you can change the speed by changing the gear ratio right now. Abir a shelf for about a four second pull up and from here you can see it has to that axle which is screwed into the foot rest so that whenever you turn the axle the foot rest phrases the lowers. This is the spring loaded design concept that yes there are many ways that let us down with their feet and so I just bring the plunger now to hear what's that in the down position anticyclone cable and mechanism is used to rest again many of it down here and the handbrake impressed. Betcha.