I've ordered some SC8UU bushing blocks and mounts for 8mm pipe for the Z-axis. I'm also looking for well priced lead screw sets to move the drill plate. The sideways work area was reduced because the pipe guides are far apart from each other. I think its a necessary sacrifice, it also allowed me to flip the lower central sled up to reduce the height of the gantry. Thanks to everyone following the project, it's encouraging to see that there is interest in such an apparatus!