Quote from: StevenG on November 12, 2014, 09:26:19 AMCouple questions, quite likely rather uninformed on the topic, but that is why I am asking the experts.Could the assumed weak section be lined to strengthen it? Is that what through tube basically does, by not stopping at the receiver?Is there any concern of galvanic corrosion between the aluminum receiver and ferrous airtube?A liner could be made, and soldered or brazed in... but would require resizing valves, blocks, etc. Thru-tube will be easier. Galvanic reaction would be no more than stock, and the bonding agent may even reduce it.Quote from: Kailua on November 13, 2014, 02:00:05 AMMy question is can a tank block be used like the Mrod mod? If the receiver was to be drilled or machined out from the front short of the hammer striker block. Can the tube be expoxied in? Being that the valve fits into the tube. Predrilling for valve screw and transfer port would be also necessary. Anyways its was something rattling in my head.That makes 2 of us with that rattling sound. Been doing mock-ups... this winter will reveal the best ways (I hope).Guys, I am proto-ing with steel, but any 3Ks that see the street will have Chro-Moly tubes. Wide safety margin, and 4.5K upgrades won't be out of the question. I will respond to the upcoming cap analysis in 3D asap... either way.T's Cothran valve will be here soon...
Couple questions, quite likely rather uninformed on the topic, but that is why I am asking the experts.Could the assumed weak section be lined to strengthen it? Is that what through tube basically does, by not stopping at the receiver?Is there any concern of galvanic corrosion between the aluminum receiver and ferrous airtube?
My question is can a tank block be used like the Mrod mod? If the receiver was to be drilled or machined out from the front short of the hammer striker block. Can the tube be expoxied in? Being that the valve fits into the tube. Predrilling for valve screw and transfer port would be also necessary. Anyways its was something rattling in my head.
Yep, stalwart is the guy, I'm just helping with ideas, development, and tuning (once I get the parts).... This project has been on the back burner all summer because neither of us had the time to work on it.... With winter here, it's "clear the decks, full speed ahead".... I hope....Bob
.... or would you not bother and just make all the internals 0.720" (would be easier).... Bob
Even if it did fit, you would be losing precious room for the magazine to clear the tube, particularly on the MRod mags .....The remaining wall on the sides of the receiver would be 0.040", I didn't check the bottom, and in fact they may not be consistent?.... Bob
No idea why you insist on such heavy wall thicknesses....Bob
Normalized CrMoly (4130) - Tensile 97K, Yield 68K:Pressure at yield: 11866 psi.... Safety Margin 4.0:1....Pressure at burst: 16926 psi.... Safety Margin 5.6:1....
QuoteNormalized CrMoly (4130) - Tensile 97K, Yield 68K:Pressure at yield: 11866 psi.... Safety Margin 4.0:1....Pressure at burst: 16926 psi.... Safety Margin 5.6:1.... That is for 7/8" x 0.065 wall without threads at 3000 psi.... Why would you blame me?.... Sorry, I don't get it....Bob
I meant this...Quotethe thinner portion that is threaded, between where the thread is engaged and the full diameter section of the tube....That is for 7/8" x 0.065 wall without threads at 3000 psi.... Why would you blame me?.... Sorry, I don't get it....Bob
the thinner portion that is threaded, between where the thread is engaged and the full diameter section of the tube....
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