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I mostly make thin two sided parts with X-Carve. Some areas of the part are only .030" thick. But my parts always turn out too thin. I’ve stiffened the machine on x,y, and z; calibrated it well, am very careful with zeroing, use a faced-flat backboard. After all that, the parts come out about .030 too thin, consistently.
Looking for ideas on what the cause might be. Hysteresis due to a worn delrin nut, perhaps; although it doesn’t seem to have any slop? Spindle deflection maybe? This is kind of driving me crazy.
I dont know what program you are using but in easel and only easel I have to add .04 to every measurement. all other software i use the measurements are spot on. so I hope you get a answer because I would love to know.
If you are cutting a thin part thinner the way you hold it down is important, I would say try the CA glue and painters tape method on the first cut but making sure the 2nd side is held properly can be an issue too… I am not fully sure how precision these units can get also depends on the zeroing method to the face of the material, flipping over securing and then zeroing a second time could also be a factor.
