I have recently been given a design assignment for which we have to design on AutoCAD 2014 for year 12 which includes market testing in the assignment, I have decided to create a hydraulic arm and have attached a survey link to this topic which would be astounding if I could get a few responses from everyone; it will only take 1 or 2 minutes of your time, so in advance THANK YOU!  www.surveymonkey.com/r/RXF5VFS