Reply by Planeman40

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Posted on disc sander runout

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1429 posts in 3213 days

#1 posted 04-18-2019 02:22 PM

My guess is these cheap Chinese machines have cast iron castings for the disk and the castings haven’t been aged to allow stresses that build up in cooling to settle before machining. Thus these machined castings warp AFTER machining. A well known problem with cast iron.

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