Since this was written e3d have released a nozzle that's particularly appropriate for this sort of use case: https://e3d-online.com/products/revo-belt-nozzles h

Since this was written e3d have released a nozzle that's particularly appropriate for this sort of use case: https://e3d-online.com/products/revo-belt-nozzles https://e3d-online.com/products/revo-belt-nozzles It's originally designed for belt printers but the extra clearance works here too.