Unresolved Robo 3D R1 Adequate Cooling

First off sorry if there is already a post on this (if so please point me in the right direction)

I have been noticing that my printer tends to print very short in the Z axis, or sometimes wont even move in the Z direction once it begins to overheat. After 20 minutes or so it just keeps printing on the same layer line until it destroys the print

Anyways to solve this i have installed a larger fan on the inside right in front of the arduino board. It does not seem to be enough so i took my wives fan she keeps next to the bed pulled the bottom off the printer and overhang the part of the printer with the board over that fan. Now it prints really well.

I wanted to know if there was perhaps a better way of going about this? or if anyone had any suggested setups i could take advantage of? I did order this because I thought it would be useful.

Also if you have any particularly tricky ideas I do CAD model in PRO-E/Creo very well

Thanks in advance!

 

Thanks for the reply,

The smaller fan does run just apparently not good enough which prompted me to add another larger one to the inside in front of the board while still using the smaller one. But you said you have 3 running so maybe ill just create some larger legs for the printer to get it farther off the table and make a 3 fan fixture of some kind and just plug into the wall and slide under it

If you have one handy would you mind putting up a snapshot of your setup? I'm sure it would make a nice example to follow.