If you have not already read the first article about this Fush Zero project please do so by clicking here. From this point on, planning has been completed and the parts have been ordered. So the fun part begins. What will follow in this article and others is a step by step account of the project mods, fabrication as well tips and tricks I have discovered along the way.
The pump mounting was the first thing I tackled in the construction of Fush Zero. I wanted in this case to locate the pump where the 3 ½” drive cage normally rests, hanging just below the 5 ¼” bays. To make the pump fit I had to cut down the cage itself. For this job I used my Campbell Hausfeld compressor and CH rotary air tool (a big dremel). The cage was then dimensioned, marked and then cut to size.
Here you can see the finished cage, much shorter than previous, then with the pump held in place to show orientation. I picked this particular pump position because it gives quite a bit of flexibility when designing hose layouts, especially if components will be swapped out frequently (which they will).
Next thing I did was to prepare the pump mount. This particular Eheim pump comes with a slide on/off bracket. I used the bracket as a guide to measure and mark all of the hole positions, then carefully drill them with a small Wizard rotary tool. Needle files were then used to deburr the edges of the holes.
The final mounting of the pump (not pictured) included rubber bushings to help reduce vibrations. For now the pump comes off to continue modding.