Hi to all I just finished the install of the ESU 58741 decoder, OWS 9x16mm speaker with large 3D printed backcase, and LED lighting. This one required very little work...
First is the view of the shell, the frame and the speaker on the backcase with a 12mm extension. I print these in my Mono2 resin printer. The decoder is loosely installed at this point. [ Guests cannot view attachments ]
Next is the side view of the frame and speaker. The extra volume is accessed thru 2 internal ports to help retain the shape during printing.
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The top view showing most of the wiring. The front headlight is a warm white 3mm LED filed down for clearance. The rear light is a 0402 white LED with a 2.2kOhm SMD resistor. The shell pushes the wiring down into a Kapton lined cavity for the rear light.
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Side view of the assembly before putting on the shell.
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Finally a close-up of the mounted speaker showing the form factor of the speaker case. The extra volume helps a bit with the sound. The LED in the background was stuck to the motor magnet when I took the picture (oops!).
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I downloaded the SD70MAC sound file from ESU, made a few modifications, and it started at "1" on my PowerCab without any changes to the CVs!!