There is a similar thread on this topic but it seems that was a different issue that was solved by the poster so I’m starting a new thread for the issues I have. I’ve upgraded to four Hemera tools using the design here. Things mostly went smoothly, though I had to route the thermistor cable around the coupler side of the tool rather than the docking size since the Micro-fit 3.0 connector would otherwise hit the acrylic panel. My main problem is the alignment of the tool on the dock. With the fan shroud from the original design the shroud hits the acrylic before the top of the tool can fully dock where the magnet is and the weight of the tool then keeps it from fully docking. To get around that I reduced the flat section of the fan duck that hits the acrylic after which the tool docks and is held by the magnet. However after attempting commissioning I realised the tools a sagging somewhat, even though they are right up against the magnet. This seem to be be mostly from the weight of the Hemera. I suspect the fan duct hitting the acrylic was actually intentional and designed to keep the tool from sagging. However it looks like it really needs to be somewhere between my reduced size and the designed size. To test that I used my reduced sized duct and put some layers of tape on the acrylic behind it. I layered up the tape until the tool no longer fully docked and then took one layer off. It seems very touchy, one either way and it either doesn’t dock fully or sags. My concern is the sag is enough that the docking is pretty rough and I could definitely see there being some issues down the road where it might drop a tool or fail to pick one up (I already had a case where the coupler wouldn’t lock). So two questions for @Greg Holloway on the design. 1. Is it the intension that the fan duct sits flush against the acrylic to keep the tool vertically straighter? 2. What is the equivalent Y value during commissioning (for the V6 tools it was 243) for seating the docks? In my case right now I’m at 227 which seems to work. There doesn’t seem to be as much play in the docks when seated on top of the printed dock adapters as there was with the V6 tools where they were directly on the metal frame. Has anyone else who upgraded to Hemera struggled with this part?