[PSUBS-MAILIST] SeaQuestor progress

[David Colombo via Personal_Submersibles]

Hi Tim, it comes in a lot of sizes. I am using 22ga.
David

On Sun, Feb 24, 2019, 2:34 PM T Novak via Personal_Submersibles <
personal_submersibles at psubs.org> wrote:

> Thanks, David.
>
> Very educational.  Looks good.  Does the nicrome wire come in various
> gauges?  If so, what gauge of nicrome wire are you using?
>
> Tim
>
>
>
> *From:* Personal_Submersibles [mailto:
> personal_submersibles-bounces at psubs.org] *On Behalf Of *David Colombo via
> Personal_Submersibles
> *Sent:* Sunday, February 24, 2019 1:43 PM
> *To:* Personal Submersibles General Discussion <
> personal_submersibles at psubs.org>
> *Subject:* Re: [PSUBS-MAILIST] SeaQuestor progress
>
>
>
> Hi Tim, the rig i have is built from a 300w computer power supply salvaged
> from an old computer.  Attatched to it is a dc dimmer, and a duplex outlet
> at 12v.
>
> My cutting rigs consist of a  bow made from 1" pvc with sweeps vs short 90
> coupler. I ran an extension chord thru the bow to each end with an internal
> knot at the exit point. On each end is a eyebolt with an internal nut,
> washer, wire, washer,  and nylock nut. The nicrome wire is pulled taught,
> and wrapped thru the eye bolt. The bow dimensions is 12 x 40. The power
> supply provides enough power for the nicrome. It cuts at about 12" per
> minute. This rate gives a pretty smooth finish. The second rig is a pair of
> pvc pipes about 16" long.  Any shorter without the dimmer, is two hot and
> cuts to fast. Your arms are the tension, but lots of flexibility.
>
> David
>
>
>
> On Feb 23, 2019 9:45 PM, "T Novak via Personal_Submersibles" <
> personal_submersibles at psubs.org> wrote:
>
> Hey David,
>
> Please show us a photo of your hot wire foam cutting rig.  It would be
> interesting to see how you made and control it.
>
> Tim
>
>
>
> *From:* Personal_Submersibles [mailto:
> personal_submersibles-bounces at psubs.org] *On Behalf Of *David Colombo via
> Personal_Submersibles
> *Sent:* Monday, February 18, 2019 10:12 PM
> *To:* Personal Submersibles General Discussion <
> personal_submersibles at psubs.org>
> *Subject:* [PSUBS-MAILIST] SeaQuestor progress
>
>
>
> Hi guys, I completed the hull rib stations on my keel form. Built my first
> hot wire rig and cut the first piece of foam. The hot wire rig built from a
> recylcled transformer from an old computer and pvc pipe. It works pretty
> well, but discovered that i need to make a few modificatations to wire
> connection points, but im happy with how well it works for my first
> attempt. Placed the first piece of foam i sliced from the 8 ft block, and
> then cut the shape of the ribs. I'll be taking videos as i go along.
>
> Best Regards,
>
> David
>
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