Is RepRap Morgan the next default RepRap?

[RepRapVN]

Hi Nicholas,
I agree, $6 and 18 robot hours are not worth considering. But, what if 10, 100, 1000 people are building them (RepRaps), it will be $60, $600, $6000 and 180 hours, 1800 hours, 18000 hours. The aim of RepRap project is to make 3D printing available for everyone and it's goal is to spread over the world not excluding developing countries. Talking about developing countries, $6 makes sense. So it is very nice to know you are working to reduce the weight of the plastic in Wally, that can contribute to the success of Wally in countries like China, Vietnam, Thailand...I see the nice things of Wally is it's design - very elegant and solid. Morgan uses PVC pipes which can save the cost but look odd.
Hung,

[Nicholas Seward]

One more note: $6 and 18 bot hours isn't the whole story. RepRap is about having a machine that can make itself. It would be an easy thing to use no plastic. However, the idea is that you use plastic to replace things that you can't print (vitamins). So you have to consider the overall cost of the bot and the ease of acquiring parts. I am quite certain that Wally is cheaper overall than Morgan. (Don't get me wrong. Morgan is a great machine and more mature than Wally is.) My point is we should really not worry about the amount of plastic or the amount of time it takes to print it. If you are printing a machine for a neighbor what is the difference between a day or two. Plastic is getting cheaper every day. In the last 6 months, plastic costs have gone down by about 25%. Costs could still go down by 50% and the filament makers can still make money. That is not to mention the new hobby level filament extruders that have hit the market.

I am designing a version of Simpson called BOB Simpson. (BOltless and Bearingless) He costs about $20 in plastic right now with hardly any vitamins to speak of. If I could recycle plastic and turn it into filament I can get it for the cost of electricity.

Moral of the story: Minimizing plastic use should be done only after you minimize everything else if you are interested in the cheapest self-replicating bot. (If that isn't your goal then no worries. RepRap has a spectrum of bots. Those that are quick to print and assembly but aren't as self-replicating and those that aren't quick to print and are highly self-replicatable. Pick what works for you. In other words, there isn't really a default. You have a spectrum to pick from. In the future, you will only have more choices to pick from.)

[Vanguard]

Very well said Nicholas ! I have been hoping that somebody would start working on something that would grind up old pop bottles, water bottles, etc, so they could be turned into filament. We have the filament extruders, it is the grinders where we are failing.

I have thought about food processors, and leaf grinders, but thinking about is as far as I have gotten. An easy to build, safe to use, plastic grinder would completely revolutionize the 3D printer world, and the way plastics are recycled. A LOT less trash in land fills !