How much to build a RepRap on Average?

[old man emu]

OK, so it costs $600 to build one (perhaps even less). , how much time does it take to build one from scratch?

You can pick up a kit delivered in the USA for around $600.

To build from scratch, you have to take into consideration the time you will spend researching and solving design problems; sourcing components, cutting and joining and redoing the steps that caused your mistakes.

While the desire to DIY is commendable, I'd suggest that you buy an entry level kit, get some experience with it, then go on to build your own. Remember, the expensive components used in a store bought kit can be recycled into your DIY machine. As well, toy will start with a machine that can print a lot of the components you will need for your DIY machine. Remember that RepRap started out to be a self-replicating machine.

Old Man Emu