Quote Originally Posted by mbele View Post
Thanks for the hint dazp1976. I was thinking to go with BST Automation BK supports with AC bearings - they are a bit more expensive than "standard" ones, but nowhere near the brand name prices I saw on ebay.

Re ballscrew shaft rigidity, 20mm dia 1100mm travel shaft has about the same rigidity as 8mm dia 180mm travel shaft :)
Sounds good.
I was glad to have the Seig X2 to make my own parts for the new bigger PM25 size machine.
I'm using budget and Dunlop AC bearings sizes 12x32x10mm & 10x30x9mm with DFU1605 all round. Both brands work well.