I have developed a program which works with servo motors and OpenCV face detection library. I am implementing it in a small scale model and I am using RS-2 servos which are sufficient. However I want to up scale my model so I need stronger servos.. I was wondering which servos would you advice me to lift up MDF tiles (160cm x 10 cm x 1 or 2 mm) of about 1 kg - 1.5 kg. I need to lift several so I was wondering which type of servo may I need. I would like to know also if it is possible to use stronger servos, Can I keep using my arduino board and the same program or I will need to change that as well?? Cause I was thinking that probably I will need to figure the electronics circuit to not burnt my arduino board but for the rest the program could be the same. I have my program already so I do not want to change the type of motor I just want to make it feasible with servos in order to upscale my model; but I do not want to order anything before being sure it is possible I am searching servos at the moment but I do not know if the price range change according to how they rotate or also about stronger they are and by stronger I mean that they can lift heavier things.... Please advice soon! Thanks!