Want to get involved with 3D printing but don't have a big enough budget to buy even one of the current low-cost machines? If you aren't particular about the print quality or size, and don't mind waiting quite a while for delivery, then you might find the Peachy Printer Kickstarter project just what you've been looking for.
The design approach is minimalist, to say the least, and was originally hacked together using parts that Rylan Grayston happened to have laying around on his workbench. It looks very much like a school science project - which I'm not negative or being critical about. Actually I admire his ingenuity and creativity quite a bit.
Rylan, with some help and assistance from his local hackerspace, managed to put together a resin based 3D printer that actually produces parts of surprising quality - surprising given the total lack of precision mechanical drives or other commonly used techniques. Instead of using a z-axis drive mechanism, Rylan decided to keep the build platform stationary while slowly increasing the resin level, drop by drop. By counting the number of drops that fall in the build container, and knowing the container dimensions, his application calculates the current resin level and drives the resin curing laser accordingly.
He eliminated the need for a dedicated micro controller and other electronics by using the audio headphone and microphone jacks on his PC. Of course, this approach is marginally robust and requires that you don't use your PC for anything else while printing - but it does work, which is brilliant.
At first I was a bit concerned that The Peachy Printer Kickstarter project might be a scam, but after watching the introductory video and looking at the associated photos, I decided that it's probably real. In any case the cost is extremely low - basically CAN$100 for one of the Peachy Printer kits.
As I mentioned above, if you do decide to back the project be prepared to wait a while. Most of the reward options have dates in the Fall of 2014 - about a year out at this point in time.
How's Rylan doing so far? Pretty good actually. The initial project funding goal was CAN$50,000, which he needed to improve some of the design and to order parts for the printers. As of October 12th, with 8 more days left to go, he has totally blown away the goal and clocked up CAN$591,450 all ready.