Two rods will go through the front of the X Axis
Bearing Plate in holes underneath the Y Axis Rails as
shown. These rods are going to end up with a washer
and a nut tightening against each side of the Front
Frame Piece and Rear Frame Piece. Leave about this
much rod sticking out, and put on a nut onto the end
of the rod that is now inside the frame. Slide the bed
forward to get to it, or flip the machine on its side.
Thread the nut a couple inches (about 50mm) down
the rod, then slide on an M5 washer. Now slide that
end of the rod through the matching hole in the Back
Frame Piece. Slide an M5 washer onto the end of
that rod then just thread a nut onto the very end of
the rod. Now thread on a nut on the other end of the
rod, which will be inside the perimeter of the frame
right now. Put on a washer, then pull it back through
the hole in the front frame that you first put the rod into. Now slide on an M5 washer then screw
on a nut. Looking at the front of the machine, you will end up with a nut, washer, Front Frame
Piece, washer, nut, long run of threaded rod, nut, washer, Back Frame Piece, washer, then the
nut. Do this with the other threaded rod that runs underneath the other Y Axis V rail. Now run
the remaining threaded rod that uses the middle holes at the bottom of the Left and Right frame
pieces the exact same way. Tighten these up, but make sure that you aren’t warping the frame
when you do this. Turn the outside nut at the same time you turn the inside nut to sandwich the
Frame Piece tightly betwee
n the two nuts. If you can’t turn them both at the same time, get
both finger tight then turn the outside a half turn, then the inside a half turn, and so on until it is
sufficiently tight. Once you get all these tightened up the rod will be taught and improve the
strength of your frame.
CONTROLLER BOARD MOUNTING
Locate your Uno board. There are four small holes at the back of the Left Frame. Mount the Uno
board here, on the outside, using just THREE M3x20
screws. The top left hole on the Uno board can be
a bit too close to the pin socket for the head of the
screw to sit properly, so just leave that one empty.
See the picture for the three holes that will get
fastened. If you feel like you just must have a screw
in that fourth hole, a standard #4 (not a metric M4)
has a slightly smaller head than an M3. The USB
socket will point towards the back. IT IS VERY
IMPORTANT THAT YOU DO NOT OVERTIGHTEN
THESE, OR YOU WILL CRACK THE BOARD.
Page 28 of 35
