<!doctype html public "-//W3C//DTD W3 HTML//EN"> <html><head><style type="text/css"></style><title>Two more on-line images of the Overs-Kawai 200 grand piano</title></head><body> <div>Hi all,</div> <div><br></div> <div>David S., you mentioned that the images online weren't as clear compared to the image Terry posted. The images were shot with a 7Mp Sony camera, launched in Photoshop and resized and resampled to 72 dpi for the web. The images certainly seemed quite sharp on-screen when I prepared them, but things can go wrong when the file is uploaded. It is also possible that for some of the images there was some camera movement, since the larger overheads were taken with the camera held overhead just under the 9'2" ceiling level of the workshop. On the other hand, I have known instances where web browsers will display images at a different magnification to that of the original document. Occasionally a browser will make serious pixel errors when it re-samples an image, displaying it at a different size. I have noticed that Firefox isn't as capable at handling jpgs as Explorer on a Mac. Although it isn't sufficient reason for me to use Explorer. Firefox is so much faster I wouldn't think of using anything else at this time. If you are having trouble seeing the images clearly, drag them from the browser window to the desktop and open them in Photoshop at 100%. I digress.</div> <div><br></div> <div>I thought some of you might be interested in seeing an image of the plate struts which we fitted between the pinblock flange and the belly rail. Here's an image of the upper most one which is located on the break between the agraffe and first capo section. The main body of the strut is made from 0.5" mild steel bar, with a 60 degree taper turned at each end. A countersunk hole is drilled into the plate flange with a centre drill, to receive one end of the strut, while the other end fits into the end of a fitting made from 11 mm hexagonal free machining steel. A turned thread on the fitting is wound into a female thread which is cut into the belly rail. The thread is 0.5" Whitworth with a 70 mm length of thread contact. When the plate is installed the machined fitting (which is firstly wound all the way into the belly rail female thread) is then screwed out to make the strut a neat fit at each end. I don't apply any preload. There will be more than adequate load on the strut by the time piano is pulled up to pitch. For our 225 piano, we fit a strut to each of the string breaks in the treble section. I suspect that this measure might also help tuning stability. The house technician at Sydney Conservatorium reports that our 225 no. 5 is the most tuning-stable instrument in their entire fleet of grand pianos. It sometimes shares the same recital hall as a couple of late model Hamburg Ds. So both pianos on occasions are sharing the same environmental conditions.</div> <div><br></div> <div><font face="Lucida Grande" size="-3" color="#000000" >http://www.members.optusnet.com.au/ronovers/overskawai6.jpg</font></div > <div><br></div> <div>Apologies for the sostenueto tongue line. These dampers have had only one regulation since their installation. They are due for a second reg'.</div> <div><br></div> <div>The final image below shows an end shot of the Kawai action with the Overs action parts fitted. The hammer rail is just about right without any modification. The only hammer flange modifcation is shortening it by 1 mm. The wippen rail has to be cut narrower using a tungsten saw blade, then relocated closer to the hammer rail by 12 mm. So in all, there's isn't much involved in fitting an Overs action to a standard KG series keyboard, rails and brackets.</div> <div><br></div> <div><font face="Lucida Grande" size="-3" color="#000000" >http://www.members.optusnet.com.au/ronovers/overskawai7.jpg</font></div > <div><br></div> <div>Ron O.</div> <x-sigsep><pre>-- </pre></x-sigsep> <div><font face="Times New Roman" size="+1" color="#0000FF"><b>OVERS PIANOS - SYDNEY</b></font></div> <div><font color="#000000"><i>   </i></font><font color="#0000FF"><i>Grand Piano Manufacturers</i></font><font color="#000000"><br> _______________________</font></div> <div><font size="-2" color="#000000"><br> </font><font color="#000000">Web http://overspianos.com.au</font></div> <div><font color="#000000">mailto:ron@overspianos.com.au<br> _______________________</font></div> </body> </html>