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First we want to know what angle the hole in the tailstock is.
Place a tailstock center backwards in the 3 jaw chuck.
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place a Dial test indicator on the small support and place the support in the maximum position. and place the dial indicator to the surface of the center.
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move the small support backwards. The dial indicator tell you that your small support isn’t the right angle.
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Rotate the small support until the dial indicator stands on zero when you moves forwards and backwards.
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on my machine is that about 1.5 degrees.
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Take the center out the chuck and measure the maximum diameter and the length.
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Now we gonna make this part.
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First we make the bevel side to the right diameter.
Then we make a straight part so we turn the other side.
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I have make this the same diameter as my biggest drill.
( in my case
18mm -0.05mm = 17.95mm )
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So now the other part. Make a cylinder. Diameter 45mm - length 90mm
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Drill first a 16mm hole and then a 18mm hole through the whole cylinder. This is accurate.
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measure the size. Length and diameter
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make a chamber of this size
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At the half of the chamber depth drill a m5 hole and make thread in it.
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Now it’s ready.
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