Then it was time to add thermal past again, and mount the copper block by pressing it with the alluminium bars to the CPU. I re-used the springs of teh original cooler block. I am quite happy with this design, since I could mount the CPU cooler and then start to mount the heat pipes. This was not as comfortable in my passive PC build.Then after experimenting with the position of the heat pipe connections to the alluminium cooler, I drilled threaded holes to mount the copper blocks to the cooler. To bend the pipes I re-used the 3D printed bending tool I used already for the passive PC build. Then I added thermal paste and fixed the heat pipes at the cooler block.

Final step was to mount the other ends of the heat pipes to the alluminium cooler by pressing them with small alluminim bars onto it.