The document provides instructions for installing an X2 ball screw upgrade kit on a machine. It details removing the existing lead screws and nuts on the X, Y, and Z axes and installing the new ball screws and nuts. It emphasizes that reinstallation will require tweaking and adjusting to achieve proper alignment and avoid binding. Instructions are provided for mounting the new ball screw assemblies and reassembling the machine.

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X2 INSTALLATION
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Remove the handles from X and Y

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Remove the two cap screws attaching the Y
lead screw

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Remove the two cap screws for the end piece
of the table

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Remove the two cap screws at the handle
end of the table

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Now you can slide the table off to expose this

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There are two set screws to remove the lead
nut of the X axis

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You will want to remove the way cover

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There is a set screw to remove the Y axis lead
nut

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Lay the machine over on its side and you can
get the Y lead screw out

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While the machine is on its side, install the
new ball screw and nut

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It will install the same way the old one was
installed

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• You will find that when you start to install things, they will bind up on
you.
• This is where the tweaking process comes in.
• You will need to loosen and tighten things more than once to get the
alignment correct.

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Install the X ballnut block the same as the old
lead screw and nut

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Now you can slide the table back on

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Use the long 6mm screws that came with the kit.
Put the extension on and also the end cap from the
handle end. Use the existing thrust bearings

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You can still get to the set screws for the X
ballnut, to make adjustments

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Bolt the X motor mount to the other end of
the table

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Remove the ¼” plate from the Y assembly to
bolt it to the machine

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Screw on the two nuts, and put the coupling
back on

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Bolt it down to the machine

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Re-attach the ¼” plate to the Y assembly

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Now we can move on to the Z axis

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Start by removing the gas spring

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Detach this cap screw from the back of the
machine. It holds the gas spring from inside the
column

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This is the stop for the head. Remove it.

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With the head all the way down, remove the
screws for the spline rail

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Now move the head all the way to the top,
until it is in this position

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You can now remove the other two screw
from the spline rail, and remove

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Remove the cover for the fine feed.

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Remove the handle

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Remove the two cap screws for the fine feed

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Remove the two cap screws from behind the
handle

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The 12mm bolt that came with the kit will go
in the hole where the spline gear was

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Bolt the block with the 12mm cap screw, and the
2 6mm screws that had the plate bolted to the
head

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Slowly move the head down until the Z top
mount sets on top of the column

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• We have heard some feed back on issues with the Z axis binding.
• When starting to install the Z axis ball screw, bolt down the side block
with the existing holes from the machines first.
• Then you can hold the top plate in place and move the head up and
down with a drill attached to the coupling. This will allow you to get
smooth movement from top to bottom before deciding on where to
drill the mounting holes for the Z top plate.
• We also slotted the Z top plate for some final fine adjustment just in
case.
• Mounting of the Z axis should be a slow and steady process to insure
alignment is correct. This will avoid any binding issues.

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You can drill the holes thru with a ¼” drill, or you
can drill and tap them for a 6mm cap screw

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Either way, you can use the 6mm cap screws
and nuts that come with the kit

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Now you are ready to tweak everything in,
and start on the electronics