[PSUBS-MAILIST] buoyancy

[Rick Patton via Personal_Submersibles]

I up sized the MBT vent tubing on my 350 to 1" and so I need to have it
wrap around the con until it gets below the external exhaust valve and the
con is 24" dia. I have the sand and the tubing already so I'll let everyone
know how it comes out.
Those tube rollers are nice but you need a dye for ever size tube you want
to roll which can get expensive unless you only roll one size all the time.
Rick

On Wed, Apr 15, 2020 at 1:47 AM Alec Smyth via Personal_Submersibles <
personal_submersibles at psubs.org> wrote:

> Ouch, I forgot you were in Hawaii. I actually can't recall what sort of
> jig I used because that little experiment was quite a few years ago. What
> I've been using in recent times is this:
>
>
> https://www.harborfreight.com/automotive/auto-body-trim/metalwork-tools/tubing-roller-99736.html
>
>
> I've been very happy with it, but it's not for small diameter work. What
> is it you're trying to make?
>
> On Wed, Apr 15, 2020 at 1:49 AM Rick Patton via Personal_Submersibles <
> personal_submersibles at psubs.org> wrote:
>
>> Did you use a rose bud and was your jig something welded to the table
>> like flat bar or steel tabs tacked to the table close together? that was
>> what i was thinking of doing. I hate to send it to the East coast from
>> Hawaii if I don't have to.
>>
>> On Tue, Apr 14, 2020 at 5:49 PM Alec Smyth via Personal_Submersibles <
>> personal_submersibles at psubs.org> wrote:
>>
>>> It dimpled just like it had without sand. Its a well known technique,
>>> but there must be something more to it beyond than filling the pipe with
>>> sand and blocking the ends.
>>>
>>> :)
>>>
>>> On Tue, Apr 14, 2020 at 11:28 PM Rick Patton via Personal_Submersibles <
>>> personal_submersibles at psubs.org> wrote:
>>>
>>>> Thanks Alec,
>>>> What happened when you tried it and did you have a good jig to bend it
>>>> around?
>>>>
>>>> Rick
>>>>
>>>> On Tue, Apr 14, 2020 at 5:13 PM Alec Smyth via Personal_Submersibles <
>>>> personal_submersibles at psubs.org> wrote:
>>>>
>>>>> Hi Rick,
>>>>>
>>>>> I've attempted the sand technique with no luck. I do have a couple of
>>>>> simple bending machines, but if its something difficult there's an outfit
>>>>> in Maryland that does nothing but bending. I've used their services many
>>>>> times, and can't recommend them more highly.
>>>>>
>>>>> https://www.josephkavanaghco.com/
>>>>>
>>>>>
>>>>> Best,
>>>>> Alec
>>>>>
>>>>> On Tue, Apr 14, 2020 at 10:52 PM Rick Patton via Personal_Submersibles
>>>>> <personal_submersibles at psubs.org> wrote:
>>>>>
>>>>>> A reach out to the K-350 gang. Do any of you happen to know the total
>>>>>> payload weight (two people)  the boat is designed for with the MBT's and
>>>>>> VBT flooded?
>>>>>> Also, has anyone hot bent SS tubing with sand im it in a tight radius
>>>>>> before with good results?
>>>>>> I am going for a 25"/26" diameter.
>>>>>> Thanks
>>>>>> Hope all are doing OK with this friggin virus going around.
>>>>>> Rick
>>>>>>
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