[PSUBS-MAILIST] SeaQuestor progress.

[Alan via Personal_Submersibles]

Rick,
I used a stick welder & ... can't remember the rod I used as the hot wire.
Very fast & foam temporarily caught on fire a number of times.
I got it in the ball park with the hot wire then used a wire brush & a rough
grade sand paper to finish. If you use the wire too hot the polystyrene surface
gets a plastic sheen that makes it harder to work with the brush & sandpaper.
I once made a 1/4 size polystyrene ambulance mainly using an electric chainsaw.
With the chainsaw you need an area to contain it as it is really messy.
Alan

> On 6/01/2019, at 7:04 PM, Rick Patton via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
> 
> David
> 
> Have you come up with a method yet for creating your hot wire rig? I have a chunk of Styrofoam that I want to shape for my MBT molds and the first layer has to be the OD of my hull as close as I can get and my concern was that if I use a hot wire/knife, the Styrofoam would shrink away from both sides of the source.
> Rick
> 
>> On Sat, Jan 5, 2019 at 2:32 PM David Colombo via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>> Hi guys, I aquired 380cf (4) 4ft x 3ft x 8ft blocks of foam for the exoskeleton shaping process. First I need to build the platform for the (16) station ribs to be attached at 12" o.c. The station ribs have been cnc cut from 3/4" plywood and are hanging on the wall ready to be assembled.  Then build a hot wire cutting rig to slice the foam into 11.25" wide blocks. Then the shaping process can begin. 
>> David
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