Tool T2 and T3 (3rd and 4th from left) are about 1.5 mm apart in the standard build, which means that T2’s tool fan can draw almost no air. With the new custom adapter, the right tool T3 moves 3 mm to the right, allowing the left tool T2 to once again draw air with the clear fan and cool T2’s heatsink from the Hymera Direct Drive extruder.
With this custom adapter, the respective tool moves up 3 mm, giving you an extra 3 mm of space compared to the left tool.
This makes just enough room for the tool fan of the left adjacent tool to cool the heatsink.
So place this adapter in the 2nd and 4th places with Tool 1 and 3.
This will save the first (T0) and 3rd tool (T2) in terms of cooling!