Hi Paul,
I took you data and did and analysis of Balance Weight BW and Friction Weight F
Then I took a Balance Weight Specification BWspec and calculated how
much to change the Front Weights FWdev to get and even balance. This
can be done with most spreadsheet programs. With your touch
designers tool kit you could put each key on the scale for Front
Weight, tare the scale to zero and add or subtract key leads to make
the Front Weight Deviations. Here are the calculations:
BW = (D+U)/2
F = (D-U)/2
FWdev = BW - BWspec
D2 = BWspec + F
BW2 = BWspec
U2 = BW2 - F
There are other ways to skin this cat but I think this approach is
the most expedient because it saves a lot of time with tuning the
spring tension. If it were me I would do a double balancing as David
Love mentioned. It takes more time. All that's left is to work on
smoothing friction.
Good Luck,
David Stanwood
Note BWspec FWdev D BW U F D2 BW2 U2
1 38 M M M M M M M M
2 38 6.0 58 44.0 30 14.0 52 38 24
3 38 4.5 54 42.5 31 11.5 50 38 27
4 38 4.0 54 42.0 30 12.0 50 38 26
5 38 2.5 51 40.5 30 10.5 49 38 28
6 38 4.0 54 42.0 30 12.0 50 38 26
7 38 3.0 60 41.0 22 19.0 57 38 19
8 38 6.0 58 44.0 30 14.0 52 38 24
9 38 5.0 57 43.0 29 14.0 52 38 24
10 38 2.5 54 40.5 27 13.5 52 38 25
11 38 0.5 50 38.5 27 11.5 50 38 27
12 38 3.5 54 41.5 29 12.5 51 38 26
13 38 3.5 54 41.5 29 12.5 51 38 26
14 38 1.5 50 39.5 29 10.5 49 38 28
15 38 2.5 54 40.5 27 13.5 52 38 25
16 38 3.0 54 41.0 28 13.0 51 38 25
17 38 -1.0 48 37.0 26 11.0 49 38 27
18 38 0.0 49 38.0 27 11.0 49 38 27
19 38 0.0 51 38.0 25 13.0 51 38 25
20 38 3.0 54 41.0 28 13.0 51 38 25
21 38 5.0 55 43.0 31 12.0 50 38 26
22 38 3.5 54 41.5 29 12.5 51 38 26
23 38 2.0 52 40.0 28 12.0 50 38 26
24 38 -1.5 46 36.5 27 9.5 48 38 29
25 38 0.0 50 38.0 26 12.0 50 38 26
26 38 -1.5 48 36.5 25 11.5 50 38 27
27 38 M M M M M M M M
28 38 M M M M M M M M
29 38 -1.0 49 37.0 25 12.0 50 38 26
30 38 -1.0 49 37.0 25 12.0 50 38 26
31 38 -2.5 45 35.5 26 9.5 48 38 29
32 38 -1.0 47 37.0 27 10.0 48 38 28
33 38 -0.5 47 37.5 28 9.5 48 38 29
34 38 1.5 51 39.5 28 11.5 50 38 27
35 38 0.0 50 38.0 26 12.0 50 38 26
36 38 0.5 51 38.5 26 12.5 51 38 26
37 38 0.5 51 38.5 26 12.5 51 38 26
38 38 0.0 51 38.0 25 13.0 51 38 25
39 38 -0.5 51 37.5 24 13.5 52 38 25
40 38 1.0 47 39.0 31 8.0 46 38 30
41 38 -1.5 47 36.5 26 10.5 49 38 28
42 38 -0.5 49 37.5 26 11.5 50 38 27
43 38 2.0 50 40.0 30 10.0 48 38 28
44 38 0.0 49 38.0 27 11.0 49 38 27
45 38 -0.5 48 37.5 27 10.5 49 38 28
46 38 -0.5 49 37.5 26 11.5 50 38 27
47 38 0.0 50 38.0 26 12.0 50 38 26
48 38 -0.5 50 37.5 25 12.5 51 38 26
49 38 0.5 50 38.5 27 11.5 50 38 27
50 38 -1.0 48 37.0 26 11.0 49 38 27
51 38 -1.5 48 36.5 25 11.5 50 38 27
52 38 -2.0 48 36.0 24 12.0 50 38 26
53 38 -1.5 48 36.5 25 11.5 50 38 27
54 38 -1.0 49 37.0 25 12.0 50 38 26
55 38 M M M M M M M M
56 38 M M M M M M M M
57 38 -1.5 48 36.5 25 11.5 50 38 27
58 38 -1.0 49 37.0 25 12.0 50 38 26
59 38 -1.5 49 36.5 24 12.5 51 38 26
60 38 -3.0 47 35.0 23 12.0 50 38 26
61 38 -2.5 48 35.5 23 12.5 51 38 26
62 38 -4.5 44 33.5 23 10.5 49 38 28
63 38 -3.0 47 35.0 23 12.0 50 38 26
64 38 -4.0 48 34.0 20 14.0 52 38 24
65 38 -1.0 48 37.0 26 11.0 49 38 27
66 38 -1.0 50 37.0 24 13.0 51 38 25
67 38 -4.0 44 34.0 24 10.0 48 38 28
68 38 -1.0 46 37.0 28 9.0 47 38 29
69 38 -0.5 47 37.5 28 9.5 48 38 29
70 38 -3.5 44 34.5 25 9.5 48 38 29
71 38 -5.5 40 32.5 25 7.5 46 38 31
72 38 -9.5 37 28.5 20 8.5 47 38 30
73 38 -9.5 37 28.5 20 8.5 47 38 30
74 38 -9.5 37 28.5 20 8.5 47 38 30
75 38 -11.0 35 27.0 19 8.0 46 38 30
76 38 -6.5 40 31.5 23 8.5 47 38 30
77 38 -7.0 42 31.0 20 11.0 49 38 27
78 38 -9.5 39 28.5 18 10.5 49 38 28
79 38 -9.0 38 29.0 20 9.0 47 38 29
80 38 -6.0 41 32.0 23 9.0 47 38 29
81 38 -7.0 43 31.0 19 12.0 50 38 26
82 38 -5.0 43 33.0 23 10.0 48 38 28
83 38 M M M M M M M M
84 38 M M M M M M M M
85 38 M M M M M M M M
86 38 M M M M M M M M
87 38 M M M M M M M M
88 38 M M M M M M M M
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