The Ottersauger and Otterfilter are two devices to evacuate and clean air, especially used for solder fumes. Both are seperate devices, which are connected by stacking.
Based on an EBM-Papst fan. (need to find out which model it was)
Files:
vacuum_case.svg
interlock_frame.dxf
interlock_foot.dxf
Files:
Filter_case.dxf
Filter_insert.dxf
interlock_frame.dxf
interlock_foot.dxf
Files:
125mm_adapter_small.dxf
125mm_adapter_big.dxf