[Problem] Mesh not show

[tima_gt]

The code:
minetest.register_node("timatrains:train1", {
description = "Subway (like 81-717 by MetroVagonMash)",
mesh = "subway_minetest.obj",
visual_scale = 5.0,
tiles = {"subway_minetest.png"},
paramtype = "light",
drawtype = "nodebox",
inventory_image = "timatrains_train1.png",
wield_image = "timatrains_train1.png",
groups = {cracky=3},
})
Mesh isn't show, but block is visible :(


Models folder:


What i need to do?

[jp]

Your model cannot fit into a node, but an entity.

See the follow links :
- http://dev.minetest.net/minetest.register_entity
- http://dev.minetest.net/LuaEntitySAO