On 11/27/2014 10:40 AM, Viesturs Lācis wrote: > Hello! > > I decided to set up coolant on my router to make it easier to work > with aluminium. > For coolant pump I used windshield washer pump from unknown car > (probably BMW), just had it laying around. > The thing is that I would like to filter off small chips, before the > coolant flows in the tank and goes through the pump again. > Currently the filtering is done through a piece of cloth, but this > approach sucks. mostly because of insufficient throughput. > > I wanted to ask, how do other people usually solve this question and > remove small chips from coolant? Or maybe should I use a pump that > does not really much care about small chips in the fluid? > > I have a piece of PVC drain pipe fitted loosely into a reducing fitting. I have a disc of Plexiglas with a bunch of drilled holes that fits below the pipe, resting on top of the angled part of the fitting. I lay several pieces of Handi-Wipe on top of the Plexi. This works great to stop chips from getting into the sump. When the flow is fast, the coolant backs up a bit in the pipe. If you cut into some wood as a fixture under the workpiece, it clogs the filter right away!
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