1250 x 1250 cnc router (from scratch)

[kingcreaky]

Ok, il try and answer what I can...

First off, I think you are referring to Chai. http://http://stores.ebay.co.uk/linearmotionbearings

Next, have a look at this...


When wording your email to chai, you need to specify your ballscrew dimensions carefully.

For example. I wanted 1500mm of actual travel, I wanted BK type bearings at BOTH ends. and then I wanted to put a pulley on. So I actually ordered
**1603mm Total length so 1500mm PLUS one end machined to type A (except dimension F to be 25mm instead of 15 (to accept pulley), and the other end machined again to type A, but without any F

I personally used HTD bearings from bearing station. However the guy at cnc4u is an extremely nice and helpful chap. In hindsight I should of ordered everything from him! that way I could of just kept ringing him with my questions rather than all the reading ive had to do.



remember; its all in design. dont rush into buying your linear gear until you've got it weighed up properly.... dont design around bearing sizes!. I wish I had spent longer designing as there is an amount of waste on my machine due to my inpatience in the design stages... Look at wilfy's build thread... that boy can design!

hope this helps look forward to seeing design.