How long can you leave a completed build w/o case on the box?

[ascendingaudio]

Hi everyone, first post.
as I've been recently getting into the tech sector, I wanted to build my own system. I planned out the build, took tips and pointers and ended up with the end choice rig. However, all my parts are here, except the case, which is now being heavily delayed in shipping. I know that it's acceptable to use the motherboard box as a sort of test bench to make sure all components work before you screw everything into the case, and also open-air benches are kind of the same concept, but how long could you run a setup on a box before it starts to have a detrimental effect on the parts?

[LukeSavenije]

for a long long time actually

 

I've seen people that have those setups going on for years

[Mira Yurizaki]

Unless the parts are being exposed to something like a heater or sunlight, there's no issue with leaving parts out in the open.

[wANKER]

 

And accidental damage are pretty much your only concerns.... 

[NinJake]

2 minutes ago, wANKER said:

 

And accidental damage are pretty much your only concerns.... 

Easier to accumulate dust, easier to clean the dust.

[rcmaehl]

IN a box is better

[wANKER]

3 minutes ago, NinJake said:

Easier to accumulate dust, easier to clean the dust.

I just wanted to use the gif tbh.

[LogicalDrm]

If you don't hit it, sure. I mean, there are open test benches....

[StarsMars]

Until you spill something on it. 

[Haris Javed]

as long as you like, just avoid spilling liquid, dropping metal parts, and maybe a static carpet.