Copyright (C) 2014,2015,2016,2017 D.Herrendoerfer
The Robin 3D printers share the goal to be simple to build, based on a simple and repeatable principle, and consist of parts that can be produced with smaller 3D printers.
A simple to build 3D printer with a combined X/Y stage. This printer can be used with very high accuracy as well as with very heavy print head assemblies, because the print head does not move except in the Z-direction.
( Robin is licensed under Creative Commons CC0 )
The Rob Plus 3D printer is build with an inverted-H-assembly, not unlike a coreXY setup, but all steppers are connected along a single line, giving the printer a sleek but sturdy frame. Hence the name Robin Plus - the timing belt forms the plus shape. The Z-Axis can be built with either a single or a double-sided crane. The double-sided setup is much less prone to vibrations, while the single-sided setup is very simple and good to use as an educational example.
( Robin Plus is licensed under Creative Commons CC0 )
Bad Robin is the smaller brother of the Big Bad Robin 3D printer. Both printers share the same parts, only the aluminium profiles and the linear rails change in size - all other parts stay the same. Bad Robin has a very low parts count, a high resolution and can go very fast. It is also very affordable with the 250mm rails version costing around 250 Euros in non-printed parts.
( Bad Robin is licensed under GPLv2 )
The Bad Robin project got its own repo and now lives here:
https://github.com/dherrendoerfer/The-Bad-Robin-3D-Printer
Donations:
If you would like to make a donation to keep this project and others going you can do so at:
https://www.paypal.me/dherrendoerfer
This helps a lot !