Monday, September 15, 2014
It has been 6 months since I last posted here. It has been a very busy 6 months with 4 major rebuilds happening at once. I am grateful for the full schedule, but am glad to be finishing up the second of these projects. After the bridges were glue to the soundboard, the board was finished and installed. Following that the piano was sent to the refinisher.
Saturday, March 22, 2014
After the proper thickness is determined, the bridge tops are planed, and sanded smooth. The bridge pin hole locations are placed on the new top using the patterns made earlier. Then the holes are drilled, the top dyed black, and the bridge is notched. Finally the new pins are installed.
Tuesday, March 18, 2014
Setting the bearing involves planing the tops of the new bridge caps to the correct thickness. The goal is to achieve proper overall down bearing as well as correct front and rear bearing. This is achieved by dry fitting the bridges to the soundboard, and dry fitting the soundboard into the piano. The plate is then installed at it's intended location, and a string is used to determint the new string line. A small kurf is cut in the bridge at numerous locations at the desired height and angle. These notches are then used as a guide to plane the entire bridge top to the correct thickness and angle.
Wednesday, February 26, 2014
Installing a new pinblock requires the rebuilder to mate the wooden pinblock perfectly to the cast iron plate. I a Steinway it also needs to be perfectly fit toe the case, with ends tight and the front mated with the stretcher. The pinblock must also be the correct thickness and also located correctly both side to side and front and back. The pictures below tell some of the story.
Friday, February 7, 2014
This post will review re-capping the bridges. In summery, the bridge pins are removed, patterns are made, and then the caps of the bridges are removed with the band saw. The original bridge bodies are then reused by filling the old holes with wooden pegs, and gluing a new cap of quarter sawn hard rock maple. At a later time the caps will be planed to the correct thickness (setting the bearing) and the patterns will be used to locate the new bridge pins.
Tuesday, January 28, 2014
Sunday, January 19, 2014
I have recently begun a new project. This will be a total restoration. The first step is to remove all case parts, and then the strings, and finally the soundboard, bridges and pinblock. Then the real work begins.