November 2018 Update:
We finished production and starts assembly.
We accept pre-orders on December 2018 on our new web.
During last year, we made some modifications for easily assembly and better appearance.
Main concept
Emphasis on appearance and grade A surface finishing
Materials...
Typically, these fans, are used to cool the GPUs:
http://www.aliexpress.com/wholesale?catId=0&initiative_id=SB_20150524070310&SearchText=75+mm+fan
Specs are: dementions 75 x 11 mm, 1200-4200 prm PWM controlled, ball bearing.
They don't sold fan separately in the market. They use it with there...
Thank's for sharing our project! Right questions, right answers here )
I just want add my one cent to protect ID-Cooling fan :) It's a standard one. 75 x 11 mm, with 40 mm mounting holes. Ball bearing. We test it for a several months with high load. And we found no changes in it.