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+# FR-1 Trace lengths
+
+## The experiment
+For the experiment, I used FR-1 that has a thickness of 35µm. On there I will mill 4 trace sizes (0.4 mm, 0,6 mm, 0,8 mm and 1 mm) and they all have the same length of 7.5 cm’s. The traces are seperated by 1 Cm.
+
+![alt text](FR-1-Traces.jpg)
+
+In this experiment I will measure the temperature of the traces with a multimeter and a thermal laser. I will also watch the board closely for any damage. Since it is FR-1 I expect it to shows signs of damage under heat
+
+## Results
+
+the power. So I grabbed an old robot with 4 stepper motors attached but I could not get them to draw more than 30 watts. So that is why the maximum in this test is 30 watts. I also had a hard time finding a way to measure the temperature of the traces because we only had a heat gun here and the laser was not the place it was actually measuring. So 0,4 mm is not measured properly.
+
+| Trace Width Trace | Resistance | Maximum safe wattage | Burn out wattage |
+| :---------------- | ---------- | -------------------- | ---------------- |
+| 0,4mm             | 3,1Ω       | 15                   | 20               |
+| 0,6mm 2           | 2Ω         | 22                   | 26               |
+| 0,8mm             | 2Ω         | 27                   | ??               |
+| 1mm               | 1,85Ω      | ??                   | ??               |
+|                   |            |                      |                  |
+
+## Recommendations for next time
+Make bigger pads to hookup the power easier to the pcb.
+![alt text](image.jpg)
+![alt text](image-1.jpg)
+
+## Files
+* [KiCad](TraceThicknesTest.zip)
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