I have this project which I shared with the group some time
ago from the guy to made a Voigt Pipe setup and build details
are in the form that I can use to show how to do the lumber
cutting.

The Goldwood 8" is a $20 full range available from PE.

T/s for the Goldwood are:

PARAMETERS

Re 7.20 [ ]
Fs 39.11 [Hz]
F1 29.01 [Hz]
F2 51.58 [Hz]
Zm 29.38 []
D 162.00 [mm]
Qms 3.60
Qes 1.17
Qts 0.88
Bl 6.52 [N/A]
L1K 1.16 [mH]
L10K 0.42 [mH]
Ms 28.09 [g]
Vas 34.97 [l]
dBSpl 84.94 [dB]
Cms 0.59 [mm/N]
Ma 48.00 [g]
FsMa 23.77 [Hz]

Elsewhere it's said that making a Voigt is sort of a
crap shoot... results are unpredictalble.

But the design still appeals to me:

Here's the orginal piece:

• Voigt pipes