Let The Fun Begain, New build on the Table.

**Ross77** · 28-04-2013

Ross i did say that the plate could be moved further back. In this design there is no reason why the ballnut could be more central and the spindle moved closer to centre. There is no need to have the nut pushed further away from centre.

Paul I think we must be looking at different drawings

If you look at the Z axis drawing in post #18 there is barely enough room to flip the plate over. if you then centralise the ball screw you will have to move the Z axis assembly further away, making the situation much worse.

As I said there are other more pressing issues with the design but as the parts are bought and he wants that size working envelope then there's not much that can be done other than maximise the other components. Another reason for not moving the ball screw is that despite the large plate on the back the y axis could still twist if Mike decides to cut larger pieces of Ali. with the ball screw in the front it is a simple case of widening the y beam to increase its torsional rigidity.

Anyway I think we will just have to agree to disagree on this one.

We all have different ideas and its up to mike to decide as ultimately he knows what is needed from the machine.

**Bush Flyer** · 18-05-2013

Right, I have made one small change to the Y axis to tie it all together. So no more changed till it is built. I ordered some 6082 aluminium plate and have started to construct the Z axis.
I can only do a little at a time before the pain is to severe and I have to stop, It will be a slow build but I will get there. Anyway one drawing of the change and two pictures to keep you going.

**Ross77** · 19-05-2013

looks like some good progress Mike. that back plate will help stiffen it all up.

glad all the comments didn't put you off. keep it up

**Bush Flyer** · 28-05-2013

Ok here is another part done I had to cut 3mm off the aluminium plate, as they came to large. Now the only way I could cut the 3mm off was with a hand held router and a M6 end mill with the plate held in a wooden jig. That was hard going. Anyway with stops to rest I did start to assemble the bed.