customizable jar lid adapter for vacuum fluid extration
thingiverse
Jar lid adapter to use with a vacuum pump to extract fluid ( I use it for small engine oil changes ). the provided stl is for a jar lid of 75mm using 9.5mm tubing. 4mm holes for mounting screws. the lid size and tube size are customizer options, if difference sized holes for the screws are wanted the openscad file is commented to identify the lines to be modified. Optional - invert/lower the part in the slicer to create a drill template - see attached screen shot. the input tubing should protrude further into the jar to avoid fluid being sucked into the output. the use of rtv/hot glue/etc may be needed to provide a seal. depending upon the jar, the screw hole might need to be moved in, edit the translate directive line 36, change "6" to "8" or what ever is needed to provide clearance: translate([(JarLidDiam/2)-6,0,-BlockHeight])
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