I'm struggling to make a box mesh move correctly...

Hi folks, 

My first post on the forum, so hello all! 

I'm been playing around with babylonjs. My intention is to make a Red Alert style game, mostly just to improve my JS skills, and learn the basic concepts of game development etc. 

However I've struggled to find a best approach for moving meshes around a ground plane. I'm essentially trying to animate a block to move from a selected mesh's initial point, to a selected point. But the movements happen immediately, and feel 'buggy' in my example: http://www.babylonjs-playground.com/#OYE6Q 

Any help much appreciated! 

Cheers,

Ewan