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Last updated: 08/13/20108
Rev. 9
Step 4:
Step four will be the joining of the front to the rear X gantry plates. When you have all the large wheels
in place, apply a light amount of tension on the M5 nuts to hold everything together. Then, adjust the
eccentrics so that the wheels are as far away from the center of the X axis as possible.
Once the wheels are installed and eccentrics have them spaced out, slide your 250mm length C-beam in
and adjust the tension evenly. Turn ⅛ of a revolution on the two eccentrics on one axle at a time. Start
with the far-left top corner then go to the top right corner, then the right bottom, then the left bottom.
If all are touching, you're done. If not, repeat by turning each axle eccentrics ⅛ of a rev again. Once the
outside wheels all touch, move to the inner wheels.
There are no shims used here except for those between the bearings on the wheel kit. The assembly is
plate, eccentric, wheel, 9mm spacer, wheel, eccentric, plate.
13
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