RailCore II

thingiverse

KITS ARE NOW AVAILABLE: https://www.filastruder.com/collections/railcore RailcoreII is a cutting-edge Core-XY based Reprap 3d printer designed by J. Steve White & Tony Akens. The idea to collaborate on a printer began in the #RepRap IRC channel, focusing on common goals for a new printer design. Core-XY motion provides smooth movement. All Linear rails offer precise control. Space and Cost Efficient, enclosable frame design maximizes room use. Key components are printable or easily milled. Flexibility and Scalability are built into the design. A professional-looking printer meets high standards. Self-Sourced and Easily customizable options abound. Steve had previously built the "railcore," an alpha version of this printer. We took what he learned from it, designing a new printer with improved features. All design work was done in Fusion360 software. As we progressed, we decided to share our design in an open format for others to build and contribute to. The frame is made from 1515 aluminum extrusion, providing space efficiency and ease of building. Standard M3 hardware fits perfectly into the extrusion like a T-Nut. To add rigidity, we originally used melamine sides but have since switched to milled HDPE side panels. These can be cut out of various materials, including plywood, acrylic, or aluminum. The total cost for the frame components (extrusion, corner cubes, and sides) is approximately $100. Some key design decisions included making the build volume a 250mm cube to keep the printer size reasonable. The design is easily expandable to 300mm cubed, with an updated version planned. Notable features include: Dual leadscrew Z-Axis with a belt drive between them Stacked idlers duo-planar belt path Lots of flexibility in the design The electronics are comprised of the Duet (Wifi or Ethernet), 24v PSU, and 0.9 degree steppers. We used an E3D v6 hotend, which is the most common at this time. Support for other hotends will be added soon. A special thanks to Filastruder, Duet3d, E3D, SeeMeCNC, and 713Maker for their support of the project. Visit my site for BOMs, Fusion 360 Models, Assembly Guides, and more: https://www.kraegar.com/railcoreii View a gallery of sample prints: https://imgur.com/a/QNLli Join our Facebook discussion group for RailCoreII builders and owners: https://www.facebook.com/groups/RailCore/ Visit the community-based site with a wiki, build guides, user contributed configs, FAQ, and more: http://railcore.org