Originally Posted by
handlewanker
This build is going above and beyond the realms of credibility....too many variables...…….one micron?....try .02mm at best.
If Kitamura have claimed to get repeatability of that figure it's because they've been in the game for years to achieve that claim.....you are not even near to getting anything off the ground this century.
I did say you.....this is regarding the one off prototype build you are anticipating as any production models would no doubt be built by a fully competent workplace that had the equipment and expertise to get the specs right.
Just cooling a ball nut does not achieve anything...…..cooling the ball screw itself would if you have a problem, but pushing a machine so hard to overheat the ball screws does not give you room to achieve 1 micron accuracy.
You forget that the ambient temperature all year round fluctuates and that will make any dissimilar metal on your build also fluctuate differentially one to another...…..this will also affect the epoxy granite mix as it's not a good heat resistant material.
BTW.....are you also going to temperature control the linear ways...…..being tied down at 60mm intervals will make them exert pressures longitudinally like a railway track in the sun.
I realise you have high ambitions and expectations, even if not immediately achievable, given the very fullness of time no doubt you will get to where you are thinking of, so with my very best wishes.....go forth where not many men have been before and do your best but at the same time accept your failures too.
BTW....I like the idea of the wood panel mock up to see if the design is actually feasible...….my exact mode d'employ…..though I don't aspire to the notion that if it looks good it is good......total BS......if it looks good it's a toy.
Ian.