Stuart pump

Stuart pump

This topic has 6 replies, 3 voices, and was last updated 7 February 2019 at 11:35 by Former Member.

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7 February 2019 at 11:01 #395138
Former Member
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@formermember19781
[This posting has been removed]
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7 February 2019 at 11:01 #9520
Former Member
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@formermember19781
Stuart pump
7 February 2019 at 11:18 #395142
John Rudd
Participant
@johnrudd16576
From the comfort of my arm chair, here's how I would.

Chuck a piece of hex brass bar with the required a/f size. Machine the two diameters to suit taste, centre drill, then drill thru to diameter of pipe cone o/d. Bore out to minor diameter of 3/8 x 40 thread, then tap with appropriate tap to required depth. Part off at required length.

You could use a D bit to form the minir diameter to give a flat bottom inside the nut.

Does this help?

Edited By John Rudd on 07/02/2019 11:18:46
7 February 2019 at 11:25 #395144
JasonB
Moderator
@jasonb
Is it the male thread on the body or the female in the nuts you are asking about?

If it is the male bosses then mark ctr of boss, set up in the 4-jaw or on an angle plate on the face plate to get the mark running true. face off then turn OD to 3/8" and then thread with die or single point if you prefer.. Could also be done on the mill or even the lathe with a boring head set for external cutting to round off the bosses.

For the Cone I drill with a suitably sized ctr drill which will give the angle and then drill the clearance hole.

Edited By JasonB on 07/02/2019 11:33:25
7 February 2019 at 11:32 #395147
Former Member
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@formermember19781
[This posting has been removed]
7 February 2019 at 11:33 #395148
JasonB
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@jasonb
Added method above.
7 February 2019 at 11:35 #395150
Former Member
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@formermember19781
[This posting has been removed]
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