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Each time installing or gluing on keyend felt, something new is learned. The result is never perfect nor ideal. At least for me, it is ideal if the result can be improved each time. "Ideal", for now, means the felt width follows the shape of the keyend exactly, not rubbing each other after returning the keys to the key frame. During the previous keyend felt installation, the key sticks were pressed against each other leaving the felt end (or damper end) a bit apart from each other. Usually the keyends are slightly tapered. After gluing and trimming, the felt often rub each other. This time, the keyends are placed close to each other leaving the key sticks a little apart, as shown in the middle picture. A tiny gap is left, still, between the keyends for the cutting knife to pass by later on. The felt is cut exactly the same length of each gluing section. The glue is applied only to the felt instead of on the keyends. I spread glue on the wood part before, only to find the keyends glued to each other. For the Roo Glue we are using, it takes a couple of hours to dry. I left them to dry over night for a cleaner cutting result. Dividing the keys in small sections is essential for a clean and uniform result. It allows the felt not to be stretched much, maintaining its original density/shape. The clamping is easier, too, only one spring clamp is needed for each section. On the next day, cut the felt with a very sharp blade. Stick the tip (further end) of the blade in between the keys, aim the closer (operator's) end right above the slot between keyends, cut in one shot for cleanliness. Check that all keyends are separated. Return the keys back to the key frame and check clearance. The result looks much better this time. But some of the felts are still rubbing each other which need to be further trimmed. Next time, the keyends will be pressed right against each other. We'll see if the result can be improved.
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