dancase A4-SFX - Fan Partition Standoffs v2.0

grabcad

The thermal concept of the dancase a4 is simple, but often requires adjustment to improve performance. This mod will partition the front and back case fans so that you can run a push-pull configuration without feeding the hot exhaust into the intake. It is intended to use the "slotted" standoff as an intake and the "closed" standoff as an exhaust, however you may see better performance by using two copies of the "slotted" standoff.If you run both fans as intake or exhaust, you should use two copies of the "slotted" standoff.These standoffs are usable on carpet, as they spread out the contact patch of the PC such that it won't sink into the threads, and the encased airways won't allow carpet to block the flow.The parts attach with the normal fan/rad mounting screws. Note that you should go easy on the torque when you install these, as it will reduce the number of engaged threads and may result in stripped threads.When printing, ensure that you enable supports "everywhere". Also, there is a pretty obvious "right side up" for printing, so be sure to print in that orientation. I made an effort to reduce the total amount of support needed, and it's pretty quick and easy to prep the standoff after printing.Planned improvements:- drop the overhanging segment on the "slotted" standoff to remove majority of remaining support material.- add an "open" variant with all 4 sides ported.Improvements from v1.1:- remove "wings" that cup the side panels, as these disable side panel removal- add screw passthroughs for the case screws- add location to mount v4.1 rubber feet (reduce slippage while maintaining partition)- increased standoff height from 12mm to 18mm- general aesthetic improvements- fewer supports