4 square wave oscillators passing thru a low-pass filter. Makes droney spacey sounds, hence the name Space Drone.
The Plan to produce a final working product.
Testing is complete and the project needs to move forward into the production phase.
My plan for a final product is to submit my CAD files to a Manufacture/Assembler in order to produce the needed completed PCB's for the project as I can't assemble the PCB's by myself in order to meet demand.
I decided to use a Guitar style pedal as an enclosure as this is the best option for cost and reliability as the enclosure is quite rugged and the people at Pedal Parts Plus do a good job. They can drill, paint and apply the graphics to the enclosure at a reasonable price and they offer discounts for multiple quantities.
The first run will consist of 40 to 50 completely assembled PCB's and drilled/painted enclosures, this offers the best option of cost upfront and price per unit and will be enough to get production started.
The Units will be assembled by hand , this is very easy process as the PCB's will already be soldered/assembled and just needs to be placed inside the enclosure.
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PCB Fab houses can take as long as 2 weeks to deliver the goods and the enclosures can take longer, as it's somewhat a manual process.
Plus the PCB needs to fit inside the enclosure and all the holes and components need to be aligned.
The first prototype was a tight fit and needed spacers on the bottom plate to fit all the wires and electronics.
The Second one I used a deeper enclosure and was a much better fit, I later re-designed the PCB as not to use as many wires and connectors. I simply designed the PCB so the potentiometers are soldered to the board, this eliminates most of the wires, but they need to line up with the drilled holes on the enclosure as this will hold the PCB to the enclosure without having to mount it.
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