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Phone charging station made of stone



Material:



  • Select a stone of suitable size.
  • Make sure it is not too thick because you'll need to drill all the way through it... And check if it sits nicely without wobbling...


  • You need a diamond grinder bit...
  • And a diamond drill bit...
  • I've bought my diamond tools at eBay directly from China.
    They are incredibly cheap ( a few dollars for a whole set of 30 grinder bits ) and work very well...


  • Measure your phone and create a drawing for the slot and charging cable...


  • Mark the center of the stone...


  • Use some soft padding to clamp the stone - otherways you may damage it...
  • And tilt it forwards by a few degrees so the phone will lean backwards once the part is finished...
  • Use plenty of running water or your tool will be destroyed within seconds...
  • My tool is coated with diamonds at a length of 10mm and I want to cut 18mm deep...
  • The tools diamond coating will last a certain distance - no matter whether you cut 0.1 or 10mm deep. To make the best of your tool use as few passes as possible - so in this case set depth per pass to 9mm to cut the whole slot in just 2 passes...
  • Use trochoidal milling - this way the tool will last much longer...


Drilling from 2 sides:



  • My drilling tool is too short to drill from just one side so I needed to turn the stone to machine it from both sides...
  • The difficult part is to align everything so upper and lower drill holes will match perfectly...
  • But there is a simple trick: just clamp a piece of scrap wood and machine it into a tight fitting counterpart for the already finished slot. Now you can just put the stone on it and everything will be aligned perfectly...






  • For diamond drilling it is important to use a low depth per pass setting so the tool retracts often and allows fresh water to reach the bottom of the hole.




Machining the cable slot:





  • Finally clamp the stone so the lower side is level...




Glueing the cable:



  • Insert the cable...
  • Connect the phone...
  • Put it into the stone and turn everything upside down...
  • Then glue the cable into the slot and fill the hole completely with hot melt glue...
  • It is important that the phone is inserted during glueing.
    This makes sure the power plug will be exactly aligned the way it needs to be...
  • You can seal the area between connector and phone with some play dough before glueing - this way no glue can leak between connector, phone and slot. There is almost no risk with hot melt glue - but if you use something like epoxy this is extremely important otherwise you may not be able to remove the phone or cable again!



Christian Knüll / Heidelbergerstr. 6 / 74746 Höpfingen / Deutschland / christian@estlcam.de