1st Build, Second machine

[JAZZCNC]

Agreed, the more important factor is to attain good alignment of the rails. It also explains why the sides of the bearing blocks are ground.

Also Jonathan If you look carefully the rails are ground or have ref edge not just the blocks. . . Very easy to miss.!

[JAZZCNC]

Here ya go Lads. . . I knew I had some pics of a Z axis I'd made (really should take more pics of stuff made!!) that used linear rails on front plate with stationery motor, Also with pockets for bearings to give datum ref and slightly recovers some lost stick-off.!

It also inverts the stepper and drops it down the backside out the way connecting to screw with belts and pulleys. The number 1 looking bit in the pics is for a drop down bracket that attach's to the y axis screw.

Also a pic showing the Yaxis stepper again inverted in on it's self, reason being this machine was designed for small spaces or sheds so wanted to minimise foot print and eliminate any sticking out bits, The X axis does the same with everything under the bed out the way. . . Nothing protudes past the frame foot print.



In the pic showing rails n bearings they are just lent against the backplate for the pic, the bearings actually go to the bottom of the back plate. They also need cutting to length. . . . . ( Jonathan those are 20mm SBC bearings n rail.)