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Tomba - vacuum barrel system
Old 03-11-2011, 03:34 AM   #1
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Default Tomba - vacuum barrel system

This is, I suppose, the simplest possible vacuum barrel system for Cyrano. I haven't try it yet, but I am sure it would work.
Tomba12easy uses unchanged - original muzzle on the gun. Water relief ports are closed with adhesive tape. All threads in the muzzle should be sealed too. O-ring is 12 x 7 x 2.5 mm, for 7 mm shaft.
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Old 03-11-2011, 01:19 PM   #2
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Thanks tromic, every thing on my airbalete is holding up well mate.

Cheers, Don
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Old 03-11-2011, 01:34 PM   #3
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It is better to use rubber tubing for closing muzzle relief ports. This is a good idea how to make it.

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Old 03-12-2011, 05:03 AM   #4
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This is my son Marko making new TombaF7 - Free shaft Tomba adapter for Cyrano.

This is a drawing of TombaF7:
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Old 03-15-2011, 03:40 AM   #5
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This is Tomba7F/10. It is supposed to work in different mods. I've tested all the mods except the first on the picture, without O-ring on the shaft.
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Old 03-15-2011, 07:11 AM   #6
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This is a tiny specta-knot slider. I suppose it is strong enough and highly hydrodynamic. I believe this slider will have less drag on the shaft than a "free shaft".
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Old 04-20-2011, 03:16 PM   #7
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This Tomba11E (Tomba11 easy) for new Mares Sten 11 for 7 mm shaft.
It uses O-ring 11 x 6 x 2,5 mm.
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Old 09-20-2011, 06:04 AM   #8
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This might be a new Tomba65S, for 6.5 mm shaft. Difference to the previous design of Tomba11, Tomba12 is that centring of the shaft is done with cone part of the slider so the stainless steel ring need not to be cone shape. This way the steel ring might be even shorter and lighter and the loading should be smoother (S). My idea is to tie constrictor knot on the slider body with 1.5 mm spectra. Cone part of the slider has ID 6.6 mm while the rest is 6.7 mm. OD of the slider is 12 mm.

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Old 09-20-2011, 10:56 AM   #9
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Great stuff Tromic.

Cheers, Don
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Old 09-20-2011, 03:08 PM   #10
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Quote:
Originally Posted by Don Paul View Post
Great stuff Tromic.

Cheers, Don
Thanks Don!
I hope I will have it ready soon.
Cheers, Tomislav
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