LR 3D Printer

LR (LabRat) 3D Printer.
3d printer intended at first to test different mechanical parts and firmware proved to print decently to be used as learning printer or backup printer.
I like to test any upgrade before implementing it but I feel uncomfortable to do this on a calibrated printer so I designed this printer and used parts laying around after upgrading both main printers.
Main features:
- as simple as possible;
- easy to assamble and disassamble;
- configurable according to desired dimension and/or available components. Can be configured for any square or rectangle bed below 200x200 mm
and, why not, upgradable to I3 configuration [LR 2.5](https://www.thingiverse.com/thing:4320334);

As my both printers are wheels based the adopted solution was simple.
For the base frame I used 2020/2040 european aluminium profile 5mm slot. Can be used any type. For the X/Y/Z axis V-slot profile.
For tapping the extrusions holes ( M6x10 and M5x10 screws) I used an actual screw with cham