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Member
Member
Good evening everyone, I want to replace the very worn central mortises; I noticed that they are glued in an L-shape where the horizontal part is inside the key. I am asking if I should replace them in the same way or if, as already seen in some videos, it is possible to glue the horizontal part of the cashmere on top of the key. Many thanks.
Member
I would also like to replace the felt pads of the pedals, which are now flattened by the players; can you explain how to replace them and how to purchase new felts? Thanks to everyone in advance.
Member
Placido wrote:23 hours ago, Placido said:
Member
Placido wrote:23 hours ago, Placido said:
Placido wrote:1 minute ago, Placido said:
Moderator
Placido, good evening. Please write the last two messages again, as they are unreadable to me. Thank you
Moderator
If it concerns the mortise bushings, I tell you that one must have graduated CAULS and identify the thickness of the cashmere. Everything depends on the thickness of the keyboard pins (which, moreover, must not be even slightly oxidized and/or rusted). It is not an easy intervention. Certain precautions must be observed, otherwise the keyboard might not slide or the keys may have too much play. The gluing method and the type of glue also significantly affect the success of the smoothness. The smoothness of the bushings is extremely important because a sudden key blockage, especially under lateral stress (that is, those created by the pianist when not pushing the key perfectly vertically), can significantly compromise the fluidity and continuity (uniformity) of the touch.
Suggesting the procedure is not easy from a distance because numerous variables intervene in choosing the thickness of the cashmere and the CAULS.
There are also cauls made of wood, plastic, and brass. Heat can be applied to the latter so as to obtain perfectly parallel mortise walls and have the same MINIMUM play (almost zero) both when the key is at rest and at maximum depression.
I remind you that this Forum does not wish to replace DIY, but rather to help pianists understand what causes their dissatisfaction regarding the instrument's malfunction. A good technician will be able to intervene and achieve, I hope, a good result.
