An example of model translation.

Please use a browser that supports "canvas"
Animate
tx -6.0 6.0 tx : 0.00
ty -2.0 2.0 ty : 0.00
tz -2.0 2.0 tz : 0.00

Limiting the translation values between -2 to +2 on the Y and Z axes keep the model inside the WebGL viewing area. Experiment with the larger X axis translation values which make the model disappear from view.