One of the original ideas behind the RepRap project was to let the machine create its own upgrade.This philosophy is [Ivan Miranda] CNC milling machine project, which has been used in Upgraded its aluminum and 3D printed frame components to steel.
For the precision machining of hard metals, the rigidity of the machine tool is very important. [Ivan]The original CNC milling machines made extensive use of lightweight aluminum extrusions with 3D printed accessories. The machine works, but the lack of rigidity can be seen in the surface quality of the machine parts. The latest upgrade includes a new frame made of welded steel pipe and heavy-duty aluminum mounting plates. The original machine was used to slowly machine grooves on steel pipes to maintain the adjustability of the Z axis.Some 3D printed motor brackets are still there, so in the second video after the break [Ivan] Use newly upgraded machines to mill some aluminum substitutes.
Although this machine may not be perfect, we must respect [Ivan]Willing to toss myself to the deepest and show all the failures and the lessons learned from the difficulties. This project was obviously used as an opportunity to improve his welding and machining skills. His manufacturing skills mainly come from 3D printing projects, such as giant crawler tanks and spiral tanks.