I'm pretty baffled by my supervisors thinking on this, but he's pretty determined that we won't be using any software that's available and I presented the NECA MLU as a place to start and he doesn't even want me to use that. I'll be building a spreadsheet based system with hundreds of parts all liked together to make it work. I've used a couple of popular software systems in the past and had good success but he won't even consider them. When complete it will work to bid all phases of our work which is fabrication of analyzer buildings, PDCs and measurement skids for the gas and oil industry. I'll have conduit, fittings,wire, cable, enclosures, switchgear, MCCs, breaker panels, controls, transmitters, etc. Should be a challenging project!
