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With what frequency should I expect to calibrate the jointer infeed/outfeed tables on my a3-31 (2007 vintage)? My workflow is quite mobile: I move this machine in and out of its parking spot under a miter saw stand whenever I use it. I went through the calibration process a year or so ago and have done a few projects that seemed to produce great results. I just started a new project today and my infeed table has >.010" dip in it towards the outfeed near the cutter head. The outfeed table is still solid and without issue.

It is entirely possible that I screwed something up originally and haven't noticed but I'm wondering if I should set my expectation to calibrate regularly given how often I move it and the style of machine it is?

Hi Richard, I only recalibrated mine once in 13 years because I was making flooring and didn’t want a sprung joint. Afterwards I reset it to a slight sprung joint.

I guess technically I have calibrated it twice.

Regards, Rod

…and technically, these two actions relate to ? changing ? the geometry of the cut, as opposed to solving an issue related to the machine having ? lost ? its calibration.

The joys of communication and semantics! ?

Thanks for the follow up. Small sample size so far, but I'm going to classify this as I screwed something up originally - whether incorrectly calibrated or maybe didn't properly tighten a jam nut somewhere i'm not sure yet.?

I was adjusting monthly on mine using heavier stock but i know other people who don’t have that experience.

Richard, my A3-31 has not required recalibration in the 10 years of ownership. It gets used 2-3 days each week. Notably, compared with your use, mine does not move from its spot in the workshop …. well, perhaps 6” back-and-forth. I assume your moving it around may upset its sensitivities.?

Regards from Perth

Derek