[PSUBS-MAILIST] fiberglass

[via Personal_Submersibles]

I appreciate the info David.

Thank you,
Scott Waters

>  -------Original Message-------
>  From: David Colombo via Personal_Submersibles <personal_submersibles at psubs.org>
>  To: Personal Submersibles General Discussion <personal_submersibles at psubs.org>
>  Subject: Re: [PSUBS-MAILIST] fiberglass
>  Sent: Sep 20 '16 21:15
>  
>  Hi Scott, while I'm not an expert on the gel coat / fiberglass
>  materials, I will give you my advice on the mold process. On the
>  SeaQuestor project the exoskeleton was modeled in Rino. From there the
>  mold patteren is being sent to a 5 axis cnc machine. The mold will be
>  cut out of the cheapest styrofoam. We will then be spray gluing tin
>  foil from your local store to the surface. Once the entire surface is
>  covered in foil, a wax coat is applied like normal. The majority of
>  any fine wrinkles from the gluing process will disappear with the wax.
>  Then the parts are ready to be laid up by the fiberglasser. The foam
>  mold will be able to pull at least two parts or more depending on the
>  amount of foam remaining after the cnc process.
>  
>  Here is the best part of the process. For the SeaQuestor, two molds
>  will be made, cnc time 2 days, prep time 1 day, fiberglass layup and
>  demold, 1 day. Final surface finsh, varies based upon quality of foil
>  job, 1-2 days, ready for paint if desired.  Then repeat for next part.
>  
>  
>  My cost for 2 molds, approximately 18 ft x 7 ft x 4 ft each from foam
>  blocks, cnc work at around 5k ready to glass, glass work around $11.00
>  per sq.ft. surface area.
>  My opinion is the 3d molds from the Rhino type program with cnc is
>  the most time efficient, and I can easily make additional matting
>  parts from the model.
>  
>  Just my two cents worth.
>  
>  David Colombo
>  On Sep 20, 2016 3:19 PM, "via Personal_Submersibles"
>  <personal_submersibles at psubs.org> wrote:
>  
>  > Thank you everyone for your help. I think I got a great plan for the
>  > fiberglass for Pisces VI now.
>  >
>  > Thank you,
>  > Scott Waters
>  >
>  >> -------Original Message-------
>  >> From: MerlinSub at t-online.de via Personal_Submersibles
>  > <personal_submersibles at psubs.org>
>  >> To: Personal Submersibles General Discussion
>  > <personal_submersibles at psubs.org>
>  >> Subject: Re: [PSUBS-MAILIST] fiberglass
>  >> Sent: Sep 19 '16 13:20
>  >>
>  >>
>  >>
>  >> Hi Scott
>  >>
>  >> 01) make a positiv from plywood, foam, concret whatever. Make
>  > the surface smooth and stable and with overlength of 2-5 inches
>  >> 02) make a negativ copy from Polyester and Glasfiber
>  >> 03) Make your positiv orginal copies - cut the overlength.
>  >> Thats a short description of a long way.
>  >>
>  >> 0A) make a positiv from plywood. Make the surface smooth and
>  > stable
>  >> 0B) Bring this positiv to a small boatsbulder and let him make
>  > the 02) and 03)
>  >> Because that the most labour hours are in 01) - 0A) the rest in
>  > sometimes cheap.
>  >>
>  >> If the Pisces is normaly storage is outside the water -
>  > Polyester resin with a Gelcoat outside and a epoxypaint inside is a
>  > good and unexpensive and easy to handle way. If it is long time
>  > exposende in the water maybe Epoxy resin is the better solution but
>  > more tricky to handle and more expensive.
>  >>
>  >> vbr Carsten - I can send you more pictures because here the
>  > pictures are very limited in size and amount.
>  >>
>  >>
>  >>
>  >>
>  >> -----Original-Nachricht-----
>  >> Betreff: [PSUBS-MAILIST] fiberglass
>  >> Datum: 2016-09-19T17:27:27+0200
>  >> Von: "via Personal_Submersibles"
>  > <personal_submersibles at psubs.org>
>  >> An: "PSUBS" <personal_submersibles at psubs.org>
>  >>
>  >> Hey everyone,
>  >>
>  >> For someone such as myself that doesn't know much about
>  > fiberglass. Can I get some help for what I need to do to build the
>  > fairings for Pisces VI?
>  >>
>  >> *What fabric and resin do I use
>  >>
>  >> *I know of the foam plug method, but how do I get the outside to
>  > be pretty and smooth. do I have to use a negative mold for that?
>  >>
>  >> *How do I correlate how much fabric I need to equal a specific
>  > thickness?
>  >>
>  >> Any help and links to websites/videos are appreciated.
>  >>
>  >> Thank you,
>  >> Scott Waters
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