Day 10 - Frame the Arm

Yesterday's guest speaker took up a little more time than I thought she would, so we did not get to build the bases for our hydraulic arms yesterday. Today you will want to build your base and start framing out your arm assembly. By the end of the bell you want to ensure that you have a complete base with a working pivot point. Make sure your team name is written on your base and that your materials are stored on the back tables before you leave for the day.

Hydraulic calculations

1. calculate the area of a circle (A_circle = πr²).
2. calcuate the mechanical advantage of a system (M.A. = F_out/F_in)
3. know that in general, output distance traveled must be multiplied by M.A. of the system to know input distance traveled
4. calculate the volume of a cylinder (V_cylinder = πr²h)
5. calculate the radius of a circle given its diameter (r = d/2, or d = 2r)
6. know that in general, M.A. = F_out/F_in = A_out/A_in = Δh_in/Δh_out

hydraulics

the branch of engineering concerned with the conveyance of liquids through pipes and channels, especially as a source of mechanical force or control.