[PSUBS-MAILIST] lathe

[hank pronk via Personal_Submersibles]

Yes I agree ugly is okay, there is a saying among motor bike guys " crome don't get you home"  If you google ' Flange Facing  Machine images, you will see what I built. 
I never had a lego set :-)Hank 


    On Wednesday, December 16, 2015 3:05 PM, James Frankland via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
 

 we need pics Hank!  I cant visualise what you mean without it.  And there is nothing wrong with it looking a bit ugly if it works! ... :)
On 16 December 2015 at 19:53, Alec Smyth via Personal_Submersibles <personal_submersibles at psubs.org> wrote:

Pure PSUB philosophy - Hank exemplifies why Lego have it all wrong when they sell kids the exact set of blocks required for assembling a specific model.
:)
Alec 
On Wed, Dec 16, 2015 at 2:21 PM, hank pronk via Personal_Submersibles <personal_submersibles at psubs.org> wrote:

Hi All,For the last four days I have been building a flange facing machine.  For those who don't know what that is, it is a portable lathe that clamps to a pipe or submarine to machine a flange.  In my case the hatch land on my new deep diver.   After welding the conical land ring into the hull it will twist from welding.  The conical face will be distorted and that is no good.   This machine I built will re-machine the face of the seat.  After re-machining the land, I will then machine the hatch conical face in my lathe  to match the seat.  I will also machine the centre shaft of the hatch with a temporary bearing assembly, allowing me to mount the hatch so it rotates on the seat.  This will allow me to lap the seat to a perfect fit.  That is how a guy on a budget builds a deep diver hatch assembly.  :-)
The flange facing machine is built entirely from stuff I have in inventory, the pivot bearing assembly is from a 3\4 ton truck reared, the clamps to hold it in place are tell-post rods, the drive is a hydraulic motor from my old launch cart, the power feed is a wheel chair drive motor, and the compound slide for the cutter is off my old lathe.  I will power it off my mini excavator, so no point in building a hydraulic power pack.
I will be testing it on the mating ring for Gamma's escape pod.Hank
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