jacobs

I suspected that might be the case snowygrouch... Well, I went ahead and ordered the chinese rods. I thought I might as well try them in the event that they do work, before spending 140dollars on good ones. Thanks for the help.

http://www.ebay.com.au/itm/2pcs-OD-8mm-x-400mm-Cylinder-Liner-Rail-Linear-Shaft-Optical-Axis-/290765610622?pt=LH_DefaultDomain_15&hash=item43b2fb1e7e&_uhb=1 that is the chinese supplier I found. The australian supplier wrote the following regarding precision tolerance: Asia tolerance standard g6(um): -5-14 Europe tolerance standard h6(um): 0-9 which made me think they might mean the same thing.

Owen, yeah that could be an idea. I did spot his site but didn't look further as he didn't have 8mm. However, I think I found the same rods from china in 8mm. But these say tolerance g6, is that the asian standard equivalent to h6 tolerance, or something different? Well, if anything, I am learning more about steel rods than I ever thought I would need to know haha

Thanks for that, I just thought I could get away with something a bit cheaper. I didn't see any with high enough precision and specs on ebay, so if nothing else I'll get the ones snowygrouch suggested, but 140dollars ouch.... Otherwise the ones I was looking at, were these ones: http://www.smallparts.com.au/store/item/sh08000x037500c1060/shaftinggroundprecisionchromesteel/ They are a bit cheaper, but still the same specs, I think. -Diameter 8.000mm -Length 375.0mm -Straightness 0.0003 mm/mm -Surface finish 0.25-0.4 um -Hardness 60-63HRC -Diameter tolerance -0.000/-0.009 (which i think is h6) I was thinking if I get these I might not need to cut them down, as I lack proper equipment for this... or is that a bit of a gamble?

Hey everyone, I've been wanting to do this mod for quite a while, but am having a bit of trouble finding a supplier for the shafts. I was looking at the ones snowygrouch suggested from conrad.de, but they charge 40euros to ship to australia, which is a bit steep considering the shafts are only 10. The only local ones i have found that meet the specs are a bit overkill, costing around 50dollars each. Or maybe I just don't know where to look. Someone suggested one of the rod sets from ultimachine, maybe this one: https://ultimachine.com/content/prusa-mendel-smooth-rod-set I could get this while ordering some other things, but are they suitable? So, If anyone could point me in the right direction, that would be fantastic... Cheers, Jacob