Hello, depending on the complexity of the machinery, and the number of parts, and the specifications required for each it could change the amount of the bid. Bid place, for example, could work for a toaster without the electronic design.
I´m a Mechanical engineer and I have 5 years of experience in the field an on paper on the design of machines, structures, products etc, this sustained by concept design considering the needs of the client or the regular requirements, cost and all consideration in the design process.
In my portfolio, you can see some work that was already built.
Thanks a lot.