I know the filter system has a low priority. But why? And how will it work? For the last question, I would give you my idea. Filter system? Is the ore filtering the same refining technique that the Orion has, or just a first reduction step to do a coarse removal of useless rock? The Prospector will only be removing things like useless rock, the processing equipment on the Orion is much more advanced. https://robertsspaceindustries.com/comm-link/engineering/15319-Q-A-MISC-Prospector-Part-II Does it filter the ore as the Prospector does? The Prospector doesn’t currently filter ore, but the MOLE and Prospector reduce the number of inert materials stored onboard. https://robertsspaceindustries.com/comm-link/engineering/17403-Q-A-ARGO-MOLE Yes, both ships will have something to reduce the inert material. Let's introduce the Chaos filter at the Prospector :slightly_smiling_face: Take a look at the mining arm. It ends with the cabin and there starts now the filter system. The green pipe will carry the material from the mining arm into the stone crusher. This is a "Spring Cone Crusher" it is one of the parts we can exchange like the mining heads ... different models -> http://www.shunzhicrusher.com/crusher/ With switching to "Extraction Mode" the "stone crusher" can be activated or select bypass crusher. It is dangerous to crush some material or maybe I have the wrong crusher in the prospector. If I select bypass crusher the material will be stored in the bags without the possibility to use the filter system. 100% of extracted material including inert will be in the bags. But now I am in "Extraction Mode", the "stone crusher" is active and I have the option to use the filter system. Again an OPTION. The green tube above the crusher transports the material into the "vortex chamber"(https://youtu.be/hWSplfXNjWM / https://youtu.be/BrGXXurZers). But I have filter system bypass active. The chamber will not work and the material will now be stored in the bags. Because I use the stone crusher I can load 10% more into the bags. 32 SCU (for prospector) will now raise to 35.2 SCU. Finally! I am in "Extraction Mode", the "stone crusher" is active and I have the option to use the filter system. The green tube above the crusher transports the material into the "vortex chamber". The filter system is active. The chamber will start to fill the material and air pressure from the bottles. The chamber swirls and blows out the light material + 2/3 of inert material. I will reduce the inert material but also lose 10% of the good material. Now to some logic. I can decide each time to activate or bypass the stone crusher, but I can activate the filter only if the stone crusher is working. If I decided to fill up half of the Prospector without the stone crusher and the rest with the stone crusher working the max amount can't be 35.2 SCU. It will be 16 SCU + 17.6 SCU = 33.6 SCU By the way! The "extraction mode" must be adjusted by using the mouse-wheel or slider as in mining mode the laser power. Why? Depending on the crusher, there is a different flow rate. If I have a high flow rate the crusher can stop working (red area like overcharging in mining mode) and can take damage. If the crusher is damaged, I would lose the possibility to use it and I have to bypass the crusher. If I am flying in an atmosphere I can decide to refill the air pressure bottles with the onboard compressor. The pilot needs the information about the cargo in his scanning and flight HUD. We have to see the timer for Quantanium in each HUD, not just in the mining HUD. THE M.O.L.E.: The M.O.L.E. has 3 stone crushers but just 1 vortex chamber. Each mining arm pilot can decide to bypass or use the stone crusher. The copilot "Engineer" will control the filter system. By the way, the M.O.L.E. needs a bed and suit locker for the engineer. The pilot needs the information about the cargo in his scanning and flight HUD. He has to see the timer for Quantanium in each HUD. Vortex Chamber: The vortex chamber + the air could be replaced by a flotation cell, magnetic drum, dry magnetic separator, grid type ball mill (to have a second stage of crushing and additional 10% cargo), or other parts! Check -> http://www.shunzhicrusher.com Behind a prospector and M.O.L.E. with an active vortex chamber, it should look like behind a combine harvester. https://www.youtube.com/watch?v=IpRvmtzzQg0&t=201s Inert material is transported out through the designated part of the ship above the engine.