Algodoo

Nice job! The hydraulics are smooth and the machine moves without any problems.

The only odd thing that I noticed is that when the hydraulic rams extend past the limits of their movement, they reverse direction! Up becomes down and down becomes up for example. That sort of thing doesn't happen with a real back hoe. Except for that, you did an excellent job on it!

thank .but i cant work with script menu.its not so good .the script thing

You don't need script to make something stop moving when it reaches the end of its motion. Just put a block to stop the motion. Also, you might need to make the motor that moves the device with less power. You do that at each end of the stroke.

I looked at your many other scenes of hydraulic machines that you posted and they all do the same thing! It's time that you learn how to do it properly, don't you think? I will help you if you need help with it.

well in my opinion.this thing work good .and the benefit of it .is its powerful.i dont like other ways.this is very simple mechanism .thanks anyway

Okay, no problem!

i ran out of ideas .what do you guys suggest that i make ?

My suggestion is a Scissor Lift. The kind that allows workers to elevate them in order to reach high work areas. There's a type that has a motor and wheels which allow it to move to different locations. This is right up your alley because it has motors and a hydraulic lift mechanism.

On Google Images search for "Scissor Lift" and you will see lots of examples of them.

Here is one that someone made way back in 2009, but I know you can do MUCH better than that! Scissor Lift

that is very good idea .thanks dude

not bad 8/10