Carbide 3D SHAPEOKO 3, Assembly Manual

22

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Position the X‑Rail

1.  Place the X-rail, with the decals facing the 

front, across the top of the two empty Y-Axis 
Left and Right Assembly boxes, as shown in 

Figure 3‑15

. 

Install the Y1‑Carriage

1.  Identify the Y1-carriage. See 

Figure 3‑15

.

2. 

Use the 4mm hex key and four (4) M6

×

12mm 

button head cap screws to attach the 
Y1-carriage to the 

LEFT

 end of the X-rail as 

shown in 

Figure 3‑16

.

When properly attached, the motor body will be 
to the inside and behind the X-rail. The V-wheels, 
idlers, and motor pulley will be facing out as shown 
in 

Figure 3‑16

.

3.  Snug the Y1-carriage to the X-rail, but do not 

fully tighten the screws.

Install the Z‑Plus

1.  With the router mount facing front, line the 

four V-wheels up with the two V-rails, and 
slide the Z-Plus onto the open end of the X-rail. 
See 

Figure 3‑17

.

Pay special attention to all four V-wheels, making 

sure they are seated properly on the V-rails. Once 

the Y2-carriage goes on, the Z-Plus is locked in 
place.

Install the Y2‑Carriage 

1.  Locate the Y2-carriage.
2. 

Use the 4mm hex key and four (4) M6

×

12mm 

button head cap screws to attach the 
Y2-carriage to the open end of the X-rail. See 

Figure 3‑18

.

When properly attached, the motor body will be 
to the inside and behind the X-rail. The V-wheels, 
idlers, and motor pulley will be facing out.

3.  Snug the Y2-carriage to the X-rail, but do not 

fully tighten the screws. 

NOTE:  

Each extrusion rail has a pair of 

V-rails running the entire length of one side. 
These V-rails serve as linear tracks for the 
V-wheels, securing the carriages to the 
gantry and allowing them to glide smoothly. 
The V-rails will face to the front (X) or inside 
(Y1 and Y2) of the machine. See Figure 3‑14.

PRO TIP:  

Screws going into the ends of the 

extrusion rails are prone to cross-threading. 
Prior to installation, pre-screw each extrusion 
rail to clear any debris from the threads. 
These “practice” screws should thread easily, 
with little resistance and without wobble. 
When you’re ready to attach the carriages, 
partially thread all screws before tightening 
each one a little at a time in a cross pattern.

PRO TIP:  

Center the Z-Plus on the X-rail and 

use several strips of masking tape to keep it 
from rolling back and forth.

Figure 3-14

Figure 3-16

Figure 3-17

Figure 3-15

Figure 3-18