While I don't disagree with your approach and reasons, it's not exactly a Rostock anymore.
The Rostock used the rails as the frame, you are using a frame to hold the rails, this is more along the lines of how the 3DR works and why you can use smaller diameter rails, even on a larger printer. However, you may want to reconsider the 6mm rails, at least one person is claiming that the rails can deflect a full mm while printing on the original design. Remember, the loads are not 100% vertical.
By the way, spinning a cheap rod in polishing compound is not the same as using ground, hardened, polished and plated. Will it be a dramatic effect, probably not at first, but give it a year and I bet your rods do not look half as good as the good ones would.
Again, I'm not saying it's a bad printer or can't be fixed (I liked my Rostock), just that we have newer, cheaper, easier to build designs now. I nearly built two Griffins for what I spent getting my Rostock working well, and the Griffins run faster and quieter.
The Rostock used the rails as the frame, you are using a frame to hold the rails, this is more along the lines of how the 3DR works and why you can use smaller diameter rails, even on a larger printer. However, you may want to reconsider the 6mm rails, at least one person is claiming that the rails can deflect a full mm while printing on the original design. Remember, the loads are not 100% vertical.
By the way, spinning a cheap rod in polishing compound is not the same as using ground, hardened, polished and plated. Will it be a dramatic effect, probably not at first, but give it a year and I bet your rods do not look half as good as the good ones would.
Again, I'm not saying it's a bad printer or can't be fixed (I liked my Rostock), just that we have newer, cheaper, easier to build designs now. I nearly built two Griffins for what I spent getting my Rostock working well, and the Griffins run faster and quieter.
