Tell us about yourself!
I think the point of this project is "boost" . light up 7v led with 2.5V. The motors are acting like transformer.
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you should try this.https://www.amazon.com/gp/aw/d/B01I51ME1S/ref=mp_s_a_1_4?ie=UTF8&qid=1494378657&sr=8-4&pi=AC_SX236_SY340_QL65&keywords=silhouette+cameo+3&dpPl=1&dpID=418G7NOWvVL&ref=plSrch
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I consider the resistor is part of the led.
The design is wrong. The led should be parallel with 5v, not in series
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did you measure the power output? I don't think it can light up a LED.
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