I'm currently working on a software for production scheduling for the jewelry factory I'm working for (Yes, in fact I'm directly in charge of the operation of the factory). They have more than 1,000 models produced every month. Different models take different lengths of time to make. And also, more than 50% of procedures are processed by hand. So, it's impossible to schedule the production without software.
If you're facing this situation also, I'm willing to share my software or even custom make one for you for free. Why "for free"? Because I want to gain experience and even international experience from the coorporaton.