KS 34: Mason A - The Weighoff
By Christopher2 comments

KS 34: Mason A - The Weighoff

Identifying which keys lift less than target upweight is a sensible starting point for weighing off an action. At the most basic level, any key that will not lift 20 grams may have repetition problems. This criterion can point to excessive friction somewhere in the system or an error in the original weighoff or a filing of hammers that left some too light for their key's compensatory lead. Ironically, the quickest fix for this situation may be to add a key weight on the other side of the balancerail. Or you can remove one from the player side, but this should include mending the hole left behind...
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KS 33: Mason A Regulating - First Pass
By Christopher0 comments

KS 33: Mason A Regulating - First Pass

Hammers hung, parts prepped, and action assembled, the regulation must begin with a serious hammerline touchup! A combination of new capstans turned in at speed, wippens with two heights of heels, and other variables produces what you see in the lead photo. For key leveling, all shanks must be off their cushions, lost motion eliminated and the overly-lofted brought into a semblance of order. Keysteps under notes #1 and #88 (set to spec in the piano) support the WNG Key Level Stick for naturals, and Rocke Sharp Leveling Blocks on these two keys support it for sharps. The second step of the blocks...
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