How is this smooth edge created ?
In the attached image of a tank adapter I can understand the 4 centerlines (red,green,blue,yellow) needed to turn this piece. What I don’t understand is the purple circled area. How is that shaped so nicely to blend with all the other curved surfaces ?
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There is no material where your purple triangles are. That is th radious of the original piece of round stock edge. Nobody wants to make it because nobody wants to pay $200.00 for it. It is time consuming process. Male and female threads to cut.
It’s because the blue line is not an axis in making this part.
I got it. You start with a round shoulder cut and then expand outward. following the red outside lines. The next cut from the other end (yellow lines) does the same and another cut centered on the whole piece (purple line) wacks off the purple area leaving the ovalated flat face.
I’m not sure of th order of the cuts, but guessing 3 should do it ???
Remember the design needs to match the taper of the frame and also have enough space inside for a Regulator to prefill the chamber.
http://jdsairman.com/Regs.html
Now that I’ve done all the hard work, would someone start making these :popcorn:
Easy now is it 😀 😀
It’s so easy even a “Baz” can do it 😀 😀 😀 😀 😀
Easy now is it 😀 😀
Can someone explain the “taper” that talked about in this thread. I see the blue line being an axis for the cut, but I don’t understand how that can go all the way down into the purple circle. Just trying to visualize the lathed action and it dosen’t look possible, where the lathed surface meets the extension for the threaded area so perfectly ?
It’s almost as the lathing around the blude axis also moved upward at a 45 degree angle, but that won’t work.
yep its very easy
Thats just the result of what happens when you mill a flat onto a taper. Can easily be done on manual machines.
i know this is asking a lot but woud u happen to have specs on it it would save me tons of time like thickness, angle degrees, thread size an length total length and hight. u can pm it to me if u want or post it here i dont wana make them and sell them i just want one for my gun. and senes thats the only one u control it . thanks in advance
oh i see now thats easy it look so much more complated then it really is thanks i so under stand now thanks thats all i need to see. and thanks all for bouncing ideas around
its abit naughty but if you don’t mind losing a couple of fingers its ok, but what i do nowadays when i make these parts, is start with a rectangle piece of stock thats at the right width so i don’t have to cut the sides
Nice. I guess if you don’t have a mill you figure out ways to get it done.
Yes that step is 3 jaw chuck to cut the taper. But to get to that point it had to be done in a 4 jaw to get the off set of the holes. Now you put it in the mil and make the sides flat. I new there were pics on here.
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Ok – enlighten me. How much for mateiral and how much labor time.
Maybe I can convince myself to go buy a Grizzly Mini Lathe and tooling for $800 and start making these. I don’t know, Maybe I’m dreaming… 😯