Base is moving uncontrolable after connecting with pipes (KIS)

[David104]

Hey there!

I have a weird problem. I built a base on Minmus which is mining ore and converts it to fuel. I connected a big red tank to it using a pipe (KIS/KAS) without any problems. After that I built a vessel (basicly a red tank which can depart and dock to a orbital station) on wheels (the really big stock ones).

The first problem is that this vessel although it has wheels and worked perfectly on Kerbin is moving soooooo slowly on Minmus. It just doesnt really excellerate. It needs like 5 sec to get 0,1 m/s of velocity.

The second problem is that once I also connect it to my base using a pipe it starts to move. First really slowly but the movement becomes harder and harder, until the whole base is shaking and eventually lifts off the ground and explodes.

It looks pretty cool but still not the porpuse of the whole thing.

I had this problem as well on the moon. When I connect a second pipe to a base it slowly slowly starts to move and in the end gets destroyed. When it happended on the moon, I didnt actually see it. Just when I switched to the base it was a cementery of parts laying around.

Does anybody have the same problem or knows whats causing it?

Cheers!

David

Edited September 11, 2015 by David104

[vixr]

I would try disabling all SAS and applying the brakes. Also try adding more batteries/charging scheme to the wheeled craft.

[David104]

Brakes are enabled and there is plenty of charge. Gonna try the SAS.

Any idea why it drives so slowly?

Thank you!

[Padishar]

The slowness is probably a combination of the really poor performance of the big wheels and the very low gravity that results in much less grip. Minmus is often like skating on ice, though the coming wheel changes in 1.1 will hopefully improve things.

Also, make sure you have decoupled your rover driving controls from your attitude adjustment controls (wasd). Otherwise, when you try to drive forward any reaction wheels will try to tip you forward which will reduce the grip of your rear wheels even more.

Edited September 11, 2015 by Padishar

[vixr]

I used those giant wheels too, mine did basically the same thing...I'm pretty sure all I did was add more batteries. You could try a test and click on your battery setup and see what happens when you try to move the craft. If the batteries are not draining quickly, try right clicking on the wheel and see if you can increase the torque?

EDIT: on second thought, I'm leaning toward Padishar's theory of low traction...

Edited September 11, 2015 by vixr

[David104]

Cheers guys!

I already looked at the battery charge while "moving". Its draining but not too heavily. I think I have 6 of the bigger square battery packs on it.

The idea with the traction sounds promising and logical.

I´ll try it tonight and let you know!

Just another thought on the pipe problem. Do you think it could help to connect the base with the tank through a ground pilon? Never used these...

Thanks for your help again! You gotta love the ksp community.

[David104]

Heyho!

So I tried everything but couldnt get the vessel with the big wheels to work. The reason for the slowness is that the craft actually is floating a bit over the ground. Dont know why it does that. When I looked at the status of the craft in map view it said suborbital....

I just used smaller wheels (a lot of them) and its working like charme.

I think the floating is also the cause for the movement when connecting a pipe to it. Also, for the craft with the smaller wheels I had to put landing legs on there in order to "connect" it to the ground. Without them, the vessel would spin out of control again.

Hope that the problem gets fixed with future updates.

Cheerio!