Hi there, welcome to the forum!! I can't answer your second questions but can comment on your design!

You'll need some cross bracing on the frame and gantry, especially if you'll be doing occasional routing!


  • How are you planning to have your Z axis mounted as the 4 tubes going 7' (?) across the table will flex like mad without any cross bracing/support.
  • How are you joining the aluminium together, I'm assuming welding as I can't see any brackets for bolting?
  • What are you planning on using for linear motion, supported round rail, linear profiled rails?


There are more questions but the answers to the above will no doubt throw up some more!