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Dema Sprayer Pump Knob Sparepart
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This STL can be used to print a replacement pump knob for a Dema garden sprayer
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- Creative Commons — Attribution
I recently bought a Dema pump sprayer at the hardware store. Filled it up, put it on a wanky surface, it fell over and the knob for actuating the pump broke into pieces. :-(
So I tried to design a new knob in FreeCAD and print it on my Mini+ – this is how it went :-)
The knob came out fine with Prusa Slicer's default settings for “Quality 0.2mm”
Tip: the pump rod has a threaded end; in order to remove the old knob, grab the rod with gripper pliers and turn the knob anti-clockwise.