The “RC drone” sub-group is currently putting together a group buy for the parts to build at least 3 Kossel Delta Printers. One of the group members has already built one from a kit (which was somewhat beta), and most of the bugs have been worked out. The Kossel printer that we are building in this group buy is this style. The idea of sourcing the parts ourselves is to reduce the price and also to allow some flexibility in the choice of components beyond what is included in the kit from FolgerTech.
One of the alternate component choices would be substituting a controller that utilizes a 32-bit ARM processor for higher performance. The kinematics of delta printers are computationally intensive, and a standard 8-bit Mega 2560 Arduino board is really working hard to keep up. There would be other options you could choose, such as an LCD display and SD card reader.
We would need the $300 up-front before we placed the orders so we don’t get stuck with a bunch of extra parts. This price might have to be adjusted slightly in the end if you choose to omit parts, or to add optional components.
You will be responsible for printing the plastic parts, or finding someone that will make them for you.
This is an opportunity for members to build a high quality 3D printer that is fast, accurate, and just plain fun to watch. They are a bit more complicated to setup than a conventional Cartesian printer, but we will help you if you get stuck.
Please understand that we aren’t going to build the machine for you, you MUST be willing to roll up your sleeves and devote some serious time to both assembling the hardware, and configuring the firmware. Ultimately, you MUST understand how the machine works in order to be able to maintain it.
One other option we discussed was the idea of building one for The MakeSpace. We are willing to donate our time and some parts to build the machine, but the group would have to support a major part of the expense.
We are probably going to be placing our orders for parts within a week or so. If you are interested in getting in on this, please post a reply. If you have any questions, feel free to ask…
Here are a few youtube video links for Delta printers to give you feel for how they work:
Mini Kossel Pro and Kossel Air printing together