Hi there,
My name is Keith and I am an engineer and a design freelancer here on the site and have experience in many different areas of electrical and design engineering. I am from the US and graduated as a BS in mechanical engineering.
Please see my profile, reviews, and portfolio projects for an idea of my capabilities. Your specific project on the electric pendulum design seems well suited for my work. I will be able to get you professionally rendered circuits, models, and manufacturing drawings for this job.
Thank you for considering!
- Keith B.