Progress this afternoon…
This is the bottom plate, viewed from the underside. The penciled outline is for the lipo battery. The 4 ‘pin-pricks’ are centers for the 1/4” drill bit that will set the corners.
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To removethe bulk of the material I used a 1” forstner bit in several places. The drill press was set to drill to 1/4” deep.
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The edge and non drilled material was removed with a chisel. The workpiece is clamped to the table top.
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The lipo battery temporarily installed to test the fitment. This is the bottom plate temporarily installed and viewed from the underside.
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Here we have two pieces; the bottom plate and a “cap piece” (the thinner piece). The work is being held upside down… the thinner piece will be facing down when the lantern is assembled. The thinner piece is slightly over 1/4”thick at this point. That is the two color led that indicates what stage the charger is in.
There will be two of these thinner”cap pieces” on the bottom. The smaller will be more or less permanently secured over the led and charger while the larger cap will be the battery cover.
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The led is fitted into a recess drilled and chiseled out of the bottom plate.
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The charger board is set into another recess. There willbe additional slots cut to route the wiring through.
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That is only a 1 amp charger. There will be a small heat sink that protrudes through the bottom cap piece. I have yet to decide which heat sink I’ll be using.
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For those not familiar with woodworking this is the router with bit and fence that was used to cut a “rabbet” out of the edge of both the top and bottom plates. What this cut out is for will become readily apparent in a future photo. The fence sets the width of the rabbet to 7/16” and the router base height is set to limit the depth of the cut to just under 1/4”.
The photo is just for illustration. In use the work piece is flipped over with the edge where the rbbet is against the black router fence. And the router and work is flipped over, the work piece clamped to the table with the router moving left to right along the edge.