Bass G measurements wanted

Whistle
1

Can anyone help with pointing me to a site or by giving me the tube lengths, I.D, O.D and finger hole sizes and placements? I want to have a go at making one of these monsters in CPVC. Any help is appreciated.

Thanks in advance,
Mick

2

http://www.kingsmills.us/twcalc/twcalc.htm

3

Thanks PJ, but I was hoping for something a little more simple. I ain’t the sharpest pencil in the case :slight_smile: . I will try and wrap my head around it though, as it would be most handy to be able to understand that programme.


Mick

4

Mick, you’re in luck. No pencil is needed to use TWCalc. :slight_smile:

Daniel provides instructions with TWCalc that explain how the calculator works. They are fairly easy to follow. I have not used TWCalc for anything pitched as low as you want to go but it works well for what I have made - low d to high E. You’re gonna need a big pipe with a bore of maybe 1.25". :astonished: Then the fun begins. I could walk you through the steps via PM or email if you like. Let me know.

You have options other than TWCalc too.

There is a YouTube video, which is quite amusing actually, where Paul Marshall uses a rubberband/elastic to layout the hole spacing using a proportion scheme. Then he cuts a pipe to hit his base note and stretches the eleastic on the pipe to determine the hole positions. Neat!

http://www.youtube.com/watch?v=E7dLyOutCzY
then
http://www.youtube.com/watch?v=3hODT_WkTkk

You could also try the flutomat.

http://www.cwo.com/~ph_kosel/flutomat.html

Hope that helps.

Feadoggie

5

Sorry for the late reply. Just come back from a short trip away. Thanks for the help.