Skewed X axis

Assembly questions and answers for the Shapeoko 3 CNC Mill
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Joined: Fri Dec 26, 2014 8:45 am

Skewed X axis

Post by Sorwrith » Thu Jan 21, 2016 7:06 am

So I currently have an issue with my machine. The bed of the machine is straight, maybe not as square as I would like but seems square enough. Problem is, the X-axis is skewed on one side by about a millimeter or two. If I bring the gantry completely to the front the left side plate will make contact to the steel plate that the Y-axis extrusion is bolted on to, but the right side is about 1 or 2 millimeters off. Would shimming the back 2 bolts on the X-axis extrusion on the left side fix the issue or is there something fundamentally wrong with my plates or extrusion?
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Re: Skewed X axis

Post by WillAdams » Thu Jan 21, 2016 12:06 pm

Yes, shimming the parts is one way to fix this.

Before that, instead (after squaring the frame) try:

- loosen the X-axis belt
- loosen the gantry end plate bolts
- clamp the end plates against the front panel
- measure the location of the X-axis extrusion relative to the front panel, carefully square and plumb as necessary
- gradually tighten the bolts, checking and adjusting as you go.
Shapeoko 3XL #0006 w/ Carbide Compact Router w/0.125″ and ¼″ Carbide 3D precision collets

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