[PSUBS-MAILIST] SeaQuestor progress

Tue May 7 18:06:09 EDT 2019

Hank, I am gluing two blocks of Styrofoam together, not to concrete. Will
this Mono foam still be the thing to use? If so, where can you buy it? Is
the Ice starting to melt up there???
Rick

On Tue, May 7, 2019 at 12:02 PM hank pronk via Personal_Submersibles <
personal_submersibles at psubs.org> wrote:

> Rick I glue styrofoam blocks to concrete with plain old mono foam.  It is
> very strong.
> Hank
>
> On Tuesday, May 7, 2019, 3:43:28 PM MDT, Rick Patton via
> Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>
>
> Can someone recommend a good adhesive for joining Styrofoam together?? I
> went to Home Depot and they recommended a product called Gripper made by
> PPG. When I got home and read the instructions, it didn't say how to use
> it, just how bad it was if you breath it!
> Dave, what have you been using?
> Also, is there a specific date of the year for the convention and anyone
> know were it will be? Gonna try and make this one.
> Rick
>
> On Mon, May 6, 2019 at 7:08 AM Rick Patton <satwelder at gmail.com> wrote:
>
> Thanks David, quite a set up! glad it worked well for ya. I'll check it
> out.
> Rick
>
> On Sun, May 5, 2019 at 8:49 PM David Colombo via Personal_Submersibles <
> personal_submersibles at psubs.org> wrote:
>
> Hi Rick, here are photos of the hot wire rig I built. Parts are 300w
> computer power supply, use 5v output wire. Two j boxes, one std outlet to
> be wired as 5v. Second j box has variable control. Two std two wire
> extension cords, i used 12ft., 1 inch pvc pipe, sweeps, and caps. 4
> eyebolts with nylock and std nuts. Nicrome wire. I built my large bow to be
> able to cut 36"  x 12" deep foam blocks, the two hand held wands i use 24"
> wire. The hand held rig runs hotter and cuts faster. The large rig cuts 48"
> in about 4 min.  I did not put a bow tightner and so it cuts with slight
> arc as it cuts, nothing that has caused any issues with straightness. For
> straight edges i used two drywall squares which are 48" long, and with a
> couple of 3" screws they are held to the foam,  and i draw the hotwire
> against them. It works pretty slick. All of the foam pieces i have cut have
> been done with these two rigs. Total cost, less than $30. Built in about
> an hour. Have fun.
> David
>
> On Sun, May 5, 2019, 12:19 PM Rick Patton via Personal_Submersibles <
> personal_submersibles at psubs.org> wrote:
>
> Thanks David.
> Rick
>
> On Sat, May 4, 2019 at 6:14 PM David Colombo via Personal_Submersibles <
> personal_submersibles at psubs.org> wrote:
>
> Hi Rick, I'll send pictures and notes tomorrow on my rig.
> David
>
> On Sat, May 4, 2019, 8:25 PM Rick Patton via Personal_Submersibles <
> personal_submersibles at psubs.org> wrote:
>
> Looking good Dave! I have yet to form my styrofoam block but it's my next
> hurdle. I think you explained how you made your hot wire but I can't find
> the thread. Would love to know how you did it or let me know what date you
> sent it and I'll try and find it in the archives. I have a welding machine
> but it may be too much oomph even on it's lowest setting to cut without
> setting the styrofoam on fire.
> Rick
>
> On Fri, May 3, 2019 at 11:09 PM hank pronk via Personal_Submersibles <
> personal_submersibles at psubs.org> wrote:
>
> Dave, pretty clever using tin foil.
> Hank
>
> On Friday, May 3, 2019, 9:02:41 PM MDT, David Colombo via
> Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>
>
> Hi Guys, working on the first inner mold form for the ballast tank today.
> Sliced the foam to 1/4" sheets, and trapazoid shapes to sit over each of
> the tribs. Then tapped it into place and then spray glued and tinfoil
> applied to protect the foam. Tomorrow a couple of coats of wax and then the
> first layer of matt glass. The inner shell will be attached to the
> exoskeleton to create the ballast tanks. Plan is 4 total, two aft and two
> adjacent to the rear pilot.  Now that i got the form work dialed in, three
> more to go.
>
> David
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