MicroRos v1.0

thingiverse

This is my design for a mini 3D printer that's small and efficient, with auto-bed leveling and possibly equipped with a dual Bowden extruder or double bowden in one extruder. The X, Y, and Z size can be adjusted by changing the rod length. The resolution of this design is precise: X & Y at 0.01mm, Z at 0.001mm. Attention is required here because this project is still a work in progress, and some pieces might need to be redesigned. I'm mounting it as we speak and have already printed some basic parts. Due to limited availability of time, updates may not come quickly. On December 16, 2015, a new version, v15, was uploaded. In this release, the filament plug hole was corrected and the MicroRos text on the RAMPS cover was introduced. By December 18, 2015, another update was released. Now available is a new display cover, Y, and Z blocks for accommodating the new bearing belt. A spacer was also added to set the distance between Z and Y parts properly. As of January 9, 2016, I redesigned the y-carriage; it's smaller and features four blocks that can hold glass without needing any clips. The filament Bowden adjustment was adjusted for a better fit. This design is more manageable compared to the old one. The LCD support was also redesigned (working as a stabilizer) with increased length for enhanced stability. Up next is to reduce and rotate the x-carriage, as it currently has a wasted printed area due to the hotend being placed on its side. Redesigning the x-carriage to have the extruder in the same direction as the rod should improve performance. On January 12, 2016, I redesigned the x-ends of the printer and the hotend mount by rotating it on the X axis. This also introduced a cable accommodation system for guiding them on top of the printer. The hotend was redesigned, and "Solid inspector" from SketchUp was used to fix non-manifold parts that needed correction. I shifted the y-carriage to minimize wasted printeable area with the new hotend mount kit. Also corrected was the versioning series number; since it's now in alpha development, this is v1.0.24a. As of March 29, 2016, I printed all the basic parts necessary for mounting and posted some pictures. Some parts require correction so new versions are being designed (expected to be published soon). A lot of time was spent on autobedleveling as it was used for the first time; however, all is working fine now. Printed models already show a need for some tuning. Next steps include improving cabling (the current look with cables everywhere is quite ugly) and doing fine tuning to increase printing quality. Print settings: - Printer: Self-made 3D printer, a derivative of Prusa i3. - Rafts: Doesn't matter - Supports: Yes - Infill: 40% - Notes: Shield (top, bottom, and X-Y) at 1mm; infill at 40%. This is an experiment, with results to be reported soon. As of March 29, some pieces need higher infill percentages, which will be published on a list available soon. Also being compiled is the Bill of Materials (BOM) for all non-printed parts used in this project.