Changing the orientation of jgro linear bearings

[js530]

I'm practically done with my first cnc wood router, 20" by 12" by 4", and I have a problem with the X axis. The X axis has a slight wobble. I am using jgro style linear bearings (al. angle with four skate bearings). Right now, the X axis, which has the table mounted to it, just rides on top of the pipe (unlike the Y axis, which has the bearings sandwitched by the black iron pipe). Initially, I hoped to use pressure on the lead screw to press the table against the pipes. This did not work, because the couplers were slightly eccentric. What I want to do now, is rotate the linear bearings 90 degrees, so they ride on the inside of the pipe. I don't want to move the position of the pipe or the motor, so I will attach two pieces of MDF perpendicular to the table, which will have the linear bearings attached to. I'm not sure if this is the best idea as far as stability, but this is the best I have thought of. Any ideas?

[DieGuy]

I'm practically done with my first cnc wood router, 20" by 12" by 4", and I have a problem with the X axis. The X axis has a slight wobble. I am using jgro style linear bearings (al. angle with four skate bearings). Right now, the X axis, which has the table mounted to it, just rides on top of the pipe (unlike the Y axis, which has the bearings sandwitched by the black iron pipe). Initially, I hoped to use pressure on the lead screw to press the table against the pipes. This did not work, because the couplers were slightly eccentric. What I want to do now, is rotate the linear bearings 90 degrees, so they ride on the inside of the pipe. I don't want to move the position of the pipe or the motor, so I will attach two pieces of MDF perpendicular to the table, which will have the linear bearings attached to. I'm not sure if this is the best idea as far as stability, but this is the best I have thought of. Any ideas?

How about a piece of angle iron to make the rotation? Should be able to find a scrap yard to let you have a piece at scrap prices.

[js530]

Nearest scrap yard is a thirty minute drive away, so I may just buy some at lowes to save myself the trip. Would 1/8" thickness be enough? I have a mig welder, so I could add some 1" square tubing if the angle flexes too much. Thanks for the idea.