DIY Build of Aluminium CNC Wood Router without Workshop & Tools

[WandrinAndy]

Here's the end-machining drawing I got from Chai a couple of years ago

Thanks Jonathan. I had already saved those up off a previous post of yours I think.

Which dimensions do you need from the rest?

I'm after the size of the BK and BF support blocks, and particularly the dimensions from the centre of bearing to each of the edges. My current design looks like too tight a fit for these blocks, so would like to know what I need to cater for.

How do you guys normally accurately align the bearings and ballnut?

I'm guessing I need to allow some leeway in order to be able to adjust during setup.... Is this normally done at the ballnut or at one of the bearings and if so which bearing?