Initial commit

README.md

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-# vcore2-kinematic-bed
+# vCore2-kinematic-bed
+
+This project implements a kinematic bed solution for the RatRig vCore2, it designed to be used with [easy mod](https://github.com/EVA-3D/easy-mod) and [EVA](https://pkucmus.github.io/EVA/) for XY motion.
+
+![alt text](./assets/assembly.png "Logo Title Text 1")
+
+# Variants
+
+- [MGN12H](./stl/mgn12h) - Tested
+- [MGN15C](./stl/mgn15c) - Untested
+- [MGN15H](./stl/mgn15h) - Untested
+
+# Bill of materials
+
+- 3x mgn rail + carriage with `Z motion length` + 100mm
+    - [Tested with](https://www.banggood.com/Machifit-MGN12-100-1000mm-Linear-Rail-Guide-with-MGN12H-Linear-Sliding-Guide-Block-CNC-Parts-p-1156260.html?rmmds=myorder&ID=515971&cur_warehouse=UK) - cheap with EU wear house, not the best quality
+- 3x 12mm sphere with 5mm thead
+    - [Tested with](https://www.ratrig.com/steel-ball-12mm-threaded-m5.html)
+- 3x 4mm aluminum spacer 5mm bore
+    - [Tested with](https://www.ratrig.com/aluminium-spacer-40mm.html)
+- 3x m5 12mm flat/countersunk screws
+- 6x 3mm x 40mm dowel pins
+    - [Tested with](https://www.ratrig.com/dowel-pin-3-0mm-x-40-0mm.html)
+- 3x 10mm x 20mm x 4.8mm magnets with 2 4mm holes
+    - Provided by RatRig, no link at the moment but the 3d model is [here](./assets/magnet)
+- 1x `Z motion length` + 160mm 2020 aluminum extrusion
+    - One of the four original Z rails can be cut to length
+
+
+# Modifications
+
+- A 3rd hole was done in the bed plate to interface with the center rail in the back
+- All the bed plate holes were chamfered to embed the countersunk screws
+    - This step is not mandatory if you don't use a full glass bed
+- One of the original vertical Z rail extrusion was cut to length (`Z motion length` + 160mm)
+
+# Printed parts
+
+- 3x Motor holder
+- 1x Right Holder
+- 1x Left Holder
+- 1x Back Holder
+- 2x Alignment jig
+
+# Assembly photos
+
+There is an [Album](https://photos.google.com/album/AF1QipPb8UzY6MsozT46tPPoFIl3qnk6D_y54e8xmwLS) with some assembly pictures, not the best o more descriptive
+
+# Sources
+
+https://cad.onshape.com/documents/498b6fb757259c8f1d1f64b7/w/7653b27b7ea7c391e082a810/e/2b3cc91744991a6a9c3920e2
+
+# Contributing
+
+- If you have any doubts or have found any problems just open an issue
+- If you have any modifications make a pull request
+- If you enjoyed the project buy me a [coffee](https://paypal.me/eduardoliveira2009)
+
+# Special Thanks to:
+- My wife for putting up with all the assembly, testing and printing done in the living room.
+- Jorge Lino, a friend that helped me with all the drilling and cutting that "can't" be done in the living room.
+- [RatRig](https://www.ratrig.com/) for offering the spheres, dowel pins, magnets and some screws.
+- McAbra for [easy mod](https://github.com/EVA-3D/easy-mod), [EVA](https://pkucmus.github.io/EVA/) and the awesome onshape vitamins
+
+