Turning Archive 2007

Subject:
PM3520 bed twist

John Dillbeck
>A thread a few days ago talked about horizontal alignment and bed twist and mentioned using a machinist level to measure. Also using winding sticks. My 3520 is misaligned a few thousand and I have lived it for years.My method of checking for bed twist was using a cheap 6in. laser dot level. On each end of the bed angled toward the center and projecting about 15 ft. Mark the center of the dot go to the other end and superimpose the dot. I was about 3/8in. off. Raised one foot about 1/2 turn and the dots are dead on and so are the centers.

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PM3520 bed twist
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