RailCore® is a family of Core-XY based Reprap 3D printers designed by J. Steve White, Tony Akens, and Ben Withem under the CC-Attribution Only license. [ Special thanks to Mandala Rose Works for providing open source files for some parts and design assistance on the Mini ]

RailCore II 300ZL	RailCore II 300ZLT	RailCore Mini

Table of RailCore II Versions

	RailCore II 300ZL	RailCore II 300ZLT	RailCore Mini
X/Y Printable	300mmx300mm	300mmx300mm	150mmx150mm
Z Printable	330mm	600mm	150mm
ABL	Yes	Yes	Yes
Source Files	Model	Model	Github
Bill of Materials	BOM	BOM	BOM
Assembly Guide	Guide	Guide	Guide
Outer dimensions (excl.260mm for loom)	572mm x 495mm x 546mm	572mm x 495mm x 830mm	400mm x 312mm x 470mm

RailCore II Community Resources

There are active communities on both Facebook and Discord. For build help please join the Discord server.

Read all about the design history of the RailCore II and how it came to be. More questions? Have a look at the General FAQ

General specifications

All models	Typical specifications, these may vary by kit and self-source.
Motion system	CoreXY with linear rails and lead screws, capable of moving 200-400mm/s
Bed specifications	6.35mm MIC6 cast aluminium tool plate with Keenovo silicone bed heater
Electronics	Duet2 + Duex or Duet3 recommended
Probe	BL-Touch, IR probe, or Piezo are common.
Z step	Typically 0.01mm, but dependent on leadscrews and Z steppers. 0.0025mm is possible
Steppers	0.9 degree on XYZ
Parts materials	Printed and machined aluminium parts are available
Materials	PLA, ABS, PETG, TPU, TPE, PP, HIPS, Ninjaflex, Laywood, Laybrick, Nylon, Bamboofill, Bronzefill, ASA, T-Glase, Carbon-fiber filaments, Polycarbonate, and more.

Support

A special thanks to Filastruder, Duet3d, E3D, Mandala Rose Works, and 713 Maker, and of course our amazing community of builders, for your continued support of the project.

Thanks as well to former supporters including SeeMeCNC, ProjectR3d, and Printed Solid for helping us along the way.

RAILCORE is a registered trademark of RailCore Labs, LLC

You can support this project by assisting with documentation via our Contributing page.