[Request] Lunar Electric Rover

[Puma]

you have already a dll?...great!!.you are workinfg fast.tha`ts a good news.for the project constellation addon!!!...keep us updated.Thanks!!!!

[cjp]

Quote:

Originally Posted by Puma

 you have already a dll?...great!!.you are workinfg fast.tha`ts a good news.for the project constellation addon!!!...keep us updated.Thanks!!!!

No, actually I have a generic 'car.dll', which can be adapted a bit to match this project. It should already be usable, and I'll download the mesh so that I can give you a first version of the add-on.

The first version (without adjusted DLL) will be very basic and a bit unrealistic. That's why it still needs some adjustment.

[Puma]

cjp, here is the mesh and textures for the LER

http://www.orbiter-forum.com/attachm...4&d=1253245119

[Puma]

I tried with spacecraft, but the mesh needs to be resized..and also a dll module is need it....i test it with a rocket car addon, replacing the mesh only...

[Puma]

Do any one have found how to fix the mesh size pproblem or build an dll for the LER?

[liber]

I think this is close to factory size.

[gattispilot]

Here is a cfg and module. To rotate the wheels press 7 or 8 and press it again to stop. apply thrust and it should go in the direction the wheels are turning. It is also UMMU.

I think it need a VC or cockpit view to see the rotation of the wheels.

I use the mesh from the earlier posts. You will have to add this LER in the scenario

[liber]

Not bad idea,but how to rotate whole craft,change direction.
LER facing in same direction all time.

[gattispilot]

I think that is the way it is designed. That all wheels turn in sync and then you change direction by the thrust. So it always face front but you can go sideways and off at an angle.

[liber]

Quote:

Originally Posted by gattispilot

 I think that is the way it is designed. That all wheels turn in sync and then you change direction by the thrust. So it always face front but you can go sideways and off at an angle.

It have ability to go sideway but there's no logic that can't turn left or right for exploration vehicle.

Check this video.

YouTube - NASA EDGE: NE@SPR - Small Pressurized Rover

YouTube - NASA EDGE: NE@SPR - Small Pressurized Rover

[gattispilot]

Thanks. On my module. if you press 7 and get the wheels to a 90 degree and apply thrust you go sideways. It seems I can't rotate in a tight circle.

[dougkeenan]

LER must have ZTR!

[gattispilot]

Quote:

Originally Posted by dougkeenan

 LER must have ZTR!

Is ZTR Zero Turn Radius?
I wonder how to code that?

what if you turned one side forward at an angle and the other side same angle but backward

This what I have for the thrust direction:

th_main = CreateThruster (_V(0,0,0), dir, MAXMAINTH, TANK, ISP);
CreateThrusterGroup (&th_main, 1, THGROUP_MAIN);

th_retro = CreateThruster (_V(0,0,0), dirR, MAXRETROTH, TANK, ISP);
CreateThrusterGroup (&th_retro, 1, THGROUP_RETRO);

SetThrusterDir (th_main, _V(sin(2*PI*TURN_proc), 0, cos(2*PI*TURN_proc)));
SetThrusterDir (th_retro, _V(-sin(2*PI*TURN_proc), 0, -cos(2*PI*TURN_proc)));

i would think that this would work one side is firing in one direction and the other side is direction in the opposite direction.
SetThrusterLevel(th_main,1);
SetThrusterLevel(th_retro,1);

Update:
I changed the thruster so that they are offset1.5 on the x. Then I have key that fires the left one forward and then fires the fire on backward. now you rotate. I think I will set the wheels to a 45 degrees.

One think I need to get now is both thrust to fire and both retro to fire

[dougkeenan]

Quote:

Originally Posted by gattispilot

 Is ZTR Zero Turn Radius?

Right. It's specified for the vehicle and demonstrated with the prototype.

How to code it? Ya, that's a mess.

[gattispilot]

Try this module:
http://www.4shared.com/file/13763787...c/_6__LER.html

1/3 keypad turn it. One thing I don't like is the vessel turns before the wheels rotate.

th_rcs[0] = CreateThruster (_V( 1,0, 1), _V(0,0,1),MAXRCSTH, TANK, ISP);
    //left front tread
    th_rcs[1] = CreateThruster (_V(-1,0, 1), _V(0,0,1), MAXRCSTH, TANK, ISP);
    // right front tread
    th_rcs[2] = CreateThruster (_V( 1,0,-1), _V(0,0,-1), MAXRCSTH, TANK, ISP);
    //left rear tread
    th_rcs[3] = CreateThruster (_V(-1,0,-1), _V(0,0,-1), MAXRCSTH, TANK, ISP);
    // right rear tread
    th_group[0] = th_rcs[0];
    th_group[1] = th_rcs[3];
    CreateThrusterGroup (th_group, 2, THGROUP_ATT_YAWLEFT);

    th_group[0] = th_rcs[1];
    th_group[1] = th_rcs[2];
    CreateThrusterGroup (th_group, 2, THGROUP_ATT_YAWRIGHT);
...




i3 = GetControlSurfaceLevel(AIRCTRL_RUDDER);
if (i3==1){SetThrusterLevel(th_main,0);
            SetThrusterLevel(th_retro,0);
          TURN_proc=.125;}

if (i3==-1){SetThrusterLevel(th_main,0);
            SetThrusterLevel(th_retro,0);
          TURN_proc=.875;}