Sieg SX2 Plus build

[John S]

My SX2 isn't to hand at the moment, packed away whilst a workshop move is going on.

However looking at the design of the Z and Hoss's machine is there any reason that the Z screw cannot be mounted to the side in the conventional manner ?

[rnr107]

However looking at the design of the Z and Hoss's machine is there any reason that the Z screw cannot be mounted to the side in the conventional manner ?

The only down side of having it on 1 side rather than in the center is that the screw will tend to pull on one side and therefore twist something...
and may not pull straight. You could fix that by having a linear bearing on a round bar on the other side?

Laurent

[russell]

However looking at the design of the Z and Hoss's machine is there any reason that the Z screw cannot be mounted to the side in the conventional manner ?

I guess you mean something like this.

Obviously it can be done as many people have done it. However I have the same concerns as Laurent. I have read a number of threads where people have had to add a counterweight to avoid jerky Z movement and I don't want to get caught like that. It seems to be almost universal with the X1 where the leadscrew is behind the column and I guess it is due to the head nodding on the column. It strikes me that the closer the lift is to being in line with the C of G the less the problem will occur. Ideally I would like to mount the ballscrew further forward still but that would involve moving the motor out to the side.

You are the expert on these machines so I would appreciate your opinion. Perhaps it is not a problem if the gibs are properly adjusted.

A secondary consideration is the difficulty of keeping the ballscrew clean from swarf at the side. On top it is well clear of any flying chips.

Russell.