The Y carriage plate should be created from a piece of
3/4” stock. I recommend melamine coated particle board.
The plate has four holes for each truck and two holes in the
middle to mount the ACME nut.
Several additional holes were added for attaching the
table later. The truck and ACME nut holes have a 3/8”
pocket so that the heads of the hardware won’t interfere
with the table (Figure 7).
The plate is secured to the four trucks with 16 4 mm x
16 mm machine screws. A #8 washer/lock washer combo is
also added as shown in Figure 8.
Once the carriage plate is secured to the four trucks,
move it all the way forward and tighten the front supports.
Next, move the carriage plate to the rear and do the same.
Once you are happy with the movement of the carriage,
tighten all the nuts.
This completes the KReduCNC frame assembly. If you
are building along with me, your machine should look like
the one shown in Figure 9.
Next month, we will add the X carriage to the frame.
SERVO 05.2016 31
A complete bill of materials, as well as additional information
can be found on my website at www.kronos robotics.com/
kreducnc. For any questions or comments, please visit the
SERVO Magazine forums at http://forum.nutsvolts.com/