We've uncovered another resin-based 3D printer project. The "Sedgwick Open Source 3D DLP Printer" by Ron Light is now crowd funding on Kickstarter with the very precise goal of USD$24,750 by July 14th.
So far the project has had limited success raising funds, but there is plenty of time left to achieve their goal.
The 3D printer uses a regular DLP projector, as most resin 3D printer projects do. This projector is not included in the standard kit you'll receive for funding the project, but they are generally available at low cost.
The resin used in this device is said to cost between USD$80-100 and some will be included in the assembly kits produced by the project.
We found the build specifications interesting: while the build area is not particularly large (77 x 102 x 125mm or 3 x 4 x 5 inches), the build speed is "5mm per minute or more". Resin 3D printers such as the Sedgwick's design operate by printing entire layers in a single operation, thus "5mm per minute" could accurately describe the speed. But that works out to 30cm (about a foot) per hour. The tallest possible object (125mm) could evidently be printed in only 25 minutes. That's very fast for a 3D printer! Unfortunately we don't know the resolution or layer size involved, so it's more than likely the rapid speed is achieved at the cost of resolution.
The price of this kit is a surprisingly low USD$495 and we think that's a great price for a super fast 3D printer.