X axis pulleys, front or rear?

[Edward]

If you tend to cut in one location on the machine for most jobs, or at least in one half of the machine, then a pulley mounted at the same end will reduce the amount of twist in the ballscrew on rapid changes of direction. This in turn gives a minor positioning error but I would guess this is very small and could be ignored on DIY machines.

Thank you. I tend to read the forum posts from all over the place, using the search function for whatever interests me. I just read and keep it in my mind, I do often bookmark, but I have hundreds of bookmarks and trying to find the right one eludes me;)

I think I intend to use the router for larger pieces, so they would tend to be centred on the bed, no area being predominant. For the smaller pieces I think I will tend to use my milling machine.

Yes, I will seek to minimise the length of cabling to the control box. Initially I thought of placing it under the table, rather than fixed to the wall, but I have to think of the pros and cons about that one. One thing is certain, the VFD will be separate from the control box.

Edward