If you’re trying to customize the piece and can’t seem to get it to extrude, try going back to your sketch and trimming the little lines that are leftover. You also may have not created an enclosed shape. The shape has to be enclosed for the software to successfully extrude it.
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The hardest part is definitely soldering the one lead to the PCB right next to the IC. You really have to be careful.
If you’re trying to customize the piece and can’t seem to get it to extrude, try going back to your sketch and trimming the little lines that are leftover. You also may have not created an enclosed shape. The shape has to be enclosed for the software to successfully extrude it.