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.
Tomba - vacuum barrel system
-
-
Thanks tromic, every thing on my airbalete is holding up well mate.
Cheers, Don
-
It is better to use rubber tubing for closing muzzle relief ports. This is a good idea how to make it.
http://www.youtube.com/watch?v=UZ3Efma28SQ&feature=player_embedded
-
This is my son Marko making new TombaF7 - Free shaft Tomba adapter for Cyrano.
http://www.youtube.com/watch?v=VHwrbst22v8This is a drawing of TombaF7:
-
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.
-
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".
-
This Tomba11E (Tomba11 easy) for new Mares Sten 11 for 7 mm shaft.
It uses O-ring 11 x 6 x 2,5 mm. -
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.
-
Great stuff Tromic.
Cheers, Don
-
Great stuff Tromic.
Cheers, Don
Thanks Don!
I hope I will have it ready soon.
Cheers, Tomislav -
-
-
-
I wondered which is currently the best vacuum kit for a shaft with a slider. I believed, based on my measurement, that it might be Tomba and I was right. An Italian guy (kalama at www.pescasubacquea.net - pesca subacquea: foto, video, prede, tecniche, apnea, attrezzature, sicurezza) did some tests with the kits he had on his guns, from Mamba, STC, LGS and found Tomba to be the best in shooting performance. This was one of his last comments on a forum:
"... ps attualmente la palma di miglio kit sottovuoto testato da me tra mamba, stc, lgs, va al Tomba"
I already told that Tomba700 was even better in performance that TombaF700 (free shaft Tomba). Not a significant difference, but was better. TombaF700 is more reliable than Tomba700, (it is more simple), and maybe easier to use.
My opinion is that the best and the most reliable free shaft vacuum systems (between STC, Evo-Air, TomabaF, Tovarich) are TombaF and Tovarich. TombaF is easier to maintain, to change O-ring in muzzle despite O-ring is deeper in muzzle. -
-
Ti on the way;) will PM the track # later.
Cheers, Don
-
Ti on the way;) will PM the track # later.
Cheers, Don
OK, thanks! :thumbsup2:
Cheers, Tomislav -
-
-
For choosing a right Tomba (Tomba700, Tomba715...) it is very important to know the exact shaft diameter. It is not same if the shaft is 7.0 mm or 7.15 mm.
Here is a trick how can one easily take a measure of a shaft diameter without a caliper. I suppose it is clear from the picture how to make a tool and how to use it.
Create an account or sign in to comment
You need to be a member to leave a comment.