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RE: Duplicating an existing hull...ETHICALLY! - 6/9/2009 4:28 PM   
Dreamin Hemi



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Status: offline 		Thanks Mart, just the perfectionist in me I suppose.  I'll still either repair the mold or just make another some day.   Either way is not too much work.  Lunch break and off to get the glassing started. 

By the way Mart, what time is over on your side of the pond?  It's about 11:30 am here.  Just curious.....


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RE: Duplicating an existing hull...ETHICALLY! - 6/9/2009 6:43 PM   
martno1fan



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Status: offline 		It was 4.28 pm lol ,its now 6.39 pm lol.
    Listen Scott i know your a perfectionist but trust me no one is going to grumble about the fit of that cowl in fact if you hadnt mentioned it i doubt anyone would have noticed  it .Ive been online ordering materials and a new hull today this ones a large cruiser style hull but has no top so ill design my own.When i do ill start a  thread on it,should be a nice project as no one seems to have done one so far on here.
Mart

< Message edited by martno1fan -- 6/9/2009 6:44 PM >


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RE: Duplicating an existing hull...ETHICALLY! - 6/10/2009 12:36 AM   
Dreamin Hemi



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Status: offline 		Just a few picture updates.  All molds are glasseed in and waiting for me to get back home!  At a DJ gig right now and will be a couple hours.  So far so good.  Once I return home, I'll assemble the halves.


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RE: Duplicating an existing hull...ETHICALLY! - 6/10/2009 3:01 AM   
nothinbetr2do


 

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Status: offline 		looking good scott, i'm eagerly awaiting the rest of the process. thanks for the updates

< Message edited by nothinbetr2do -- 6/10/2009 3:02 AM >

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RE: Duplicating an existing hull...ETHICALLY! - 6/10/2009 3:33 AM   
nvs motorsports


 

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Status: offline 		Looks like your having fun there Scott  
You cant help it its a disease you have to make one so you can get it out of your system
BTW i sent a pm to you

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RE: Duplicating an existing hull...ETHICALLY! - 6/10/2009 3:56 AM   
Dreamin Hemi



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quote:

ORIGINAL: nvs motorsports

Looks like your having fun there Scott  
You cant help it its a disease you have to make one so you can get it out of your system


Your absolutely right about that.  Have to get one out, at least a decent pull.  This should be a decent part......had to work a couple sections over a few times, and my only concern there is tripe.  Also had an area where the PVA wasn't completely dry and floated to the surface as I was spraying the gel in.  Could possibly have some minor gelcoat repair on this first one, but at least it helps season the mold.....and like NVS says get's one out of my system. 

Here are the latest from this evening.  Will hopefully install my 2" rails and transom wood tomorrow. 

This is where things really get messy.  Thickened up a slow brew bog of gelcoat and micro chopped strand glass and applied it to all the mating areas of the mold.  Carefully, I aligned the other half of the mold and mated it to the bogged half.  Quickly bolted things together and snugged the wingnuts.  As I do this, the bog mixture oozes everywhere filling in any voids and cracks around the seam.  Using gelcoat to do this makes for a perfect cosmetic apearance on the exterior. 

Inside you see the oozing of the bog everywhere.  I mixed up a batch of laminating resin and using the same technique as I do with my other seamless V hull, I applied 2" wide strips of cloth tape directly over the joint..  Looks very sloppy, however there really isn't any neat way to get this accomplished.  I did however use a rag with acetone and cleaned up any splatter around the inside visable areas.  Makes for a neater appearance.



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< Message edited by Dreamin Hemi -- 6/10/2009 4:02 AM >

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RE: Duplicating an existing hull...ETHICALLY! - 6/10/2009 12:05 PM   
nvs motorsports


 

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Status: offline 		Practice make perfect you just use a little less bog on join only do the bottom hull with bog not both parts
You just need to do upper and lower more towards front as its a pain to glass up there
always put gelcoat in your bog it has a better chemical joining capacity as oppsed to just resin bog
also dont use wood in transom try 3 to 5 mm cormat far more stable and wont shift from dampness good for keeping running gear in accurate position


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RE: Duplicating an existing hull...ETHICALLY! - 6/10/2009 12:25 PM   
martno1fan



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Status: offline 		Be interesting to see how much of that bog seeps through on the outside and how much cleaning up you need to do.Look forward to seeing it when you pull it.
Mart


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RE: Duplicating an existing hull...ETHICALLY! - 6/10/2009 12:26 PM   
Dreamin Hemi



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Status: offline 		lol....yeah, I only had a 1" brush as I was out of the acid brushes.  Would have been a slightly neater placememnt of the bog I suppose.  Also I only applied it to the bottom.  Only gelcoat was used for the bog....no laminating resin; that was used for the cloth strip on the inside.  I have a sheet of 5 ply 1/4 birch that I've been using for my builds.  Would have to order Cormat and don't have that time for this build.  It gets bogged in and sealed with resin where exposed to seal it.  Will order some Cormat and try that for future builds


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RE: Duplicating an existing hull...ETHICALLY! - 6/10/2009 12:30 PM   
Dreamin Hemi



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quote:

ORIGINAL: martno1fan

Be interesting to see how much of that bog seeps through on the outside and how much cleaning up you need to do.Look forward to seeing it when you pull it.
Mart

There will be a LOT that seeps through.  The point of that is to spread out.  It will probably have a 1" or less "flash" all the around, just as designed to do.  Each pull will require knocking off the flash, flush sanding and a quick hit with a buffer to polish up....at least that's how I'm doing it.  Just about 10 minutes of extra work will make each one perfect.

NVS, once this is pulled, please throw in picts of yours....I was also suprised of how much spread the flash had when clamped.



< Message edited by Dreamin Hemi -- 6/10/2009 12:44 PM >

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RE: Duplicating an existing hull...ETHICALLY! - 6/10/2009 12:31 PM   
nvs motorsports


 

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Status: offline 		A very small amount seeps out will be approx half to 1mm thick flashing that can easily be cut off an detailed smooth and being where the join is on the boat  would hardly notice it


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RE: Duplicating an existing hull...ETHICALLY! - 6/10/2009 12:35 PM   
Morspeed


 

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Status: offline 		Hey Scott, you gotta end your relationship with "pva", your tools are sweet, prep is excellent, you'll cut down on build time,  your mouldings will come out with a much higher gloss.....you'll never look back!!  

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RE: Duplicating an existing hull...ETHICALLY! - 6/10/2009 12:39 PM   
Dreamin Hemi



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quote:

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Hey Scott, you gotta end your relationship with "pva", your tools are sweet, prep is excellent, you'll cut down on build time,  your mouldings will come out with a much higher gloss.....you'll never look back!!  


Your absolutely right.  Sort of like quitting smoking I suppose.  Just have to stop cold turkey!  This hatch is my first test of NOT using it.  Hate the stuff, but just as mentioned before it's a safety net.  Once this pull is made, I'll add a few more coats and next hull will be PVA-less.



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RE: Duplicating an existing hull...ETHICALLY! - 6/10/2009 12:44 PM   
nvs motorsports


 

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Status: offline 		This is what the join will look like fresh out of mold


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< Message edited by nvs motorsports -- 6/10/2009 12:49 PM >

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RE: Duplicating an existing hull...ETHICALLY! - 6/10/2009 12:52 PM   
martno1fan



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Status: offline 		So when its sanded you will still see the line i supose even after buffing ?.
Mart

< Message edited by martno1fan -- 6/10/2009 12:53 PM >


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RE: Duplicating an existing hull...ETHICALLY! - 6/10/2009 12:54 PM   
nvs motorsports


 

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Status: offline 		And this is a sneak preview in with a comparison boat beside it (YUCK)


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RE: Duplicating an existing hull...ETHICALLY! - 6/10/2009 1:03 PM   
nvs motorsports


 

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Status: offline 		Yes mart you will still see a join but its at the bottom of a spray knuckle on side of hull not very noticable at all
But at least its not a join mark in middle of a flat sided hull panel like some well known brands
Ive got a hydro marine boat here paid big dollars for an i have to bog the join im not happy but its just they way they are made not a lot of thought to make it easier for end user


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RE: Duplicating an existing hull...ETHICALLY! - 6/10/2009 1:18 PM   
martno1fan



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Status: offline 		Ah i see what you mean the top half is a tad wider than bottom looking at the transom pic?.I know what you mean about some of the big brand name boats out there,some are shocking quallity.
Mart

< Message edited by martno1fan -- 6/10/2009 1:23 PM >


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RE: Duplicating an existing hull...ETHICALLY! - 6/10/2009 1:51 PM   
Dreamin Hemi



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Status: offline 		Exactly......the sides will have a slight overlap, however the transom will be seamless once the flash is trimmed.  Makes it easy to mount hardware, no seam to inhibit placement.


Update:

Transom wood selection is the same as my mono....5 ply aircraft grade birch.  Bought in 4' x 8' sheets, had to cut down to workable size.  Using the plug as my template, marked the cut lines and finally cut out using a scroll saw.  Trial and error placements for trimming to make this transom fit snugly using an upright belt sander.  Should have made a template with notches for the rails, but perhaps next build.  They get glassed in anyway, more than adequate. 

Used a bog of laminating resin, cabosil and chopped strand glass I placed the trimmed transom in place making sure all areas had contact with the mixture and spooged out.  Just used a gloved finger and smeared the bog into place sealing the edges.  Will seal the transom with the rails once they are installed.  Also used a block of wood cut at 90 degrees to make sure I placed it in there square.  Headed out to visit my dad so rails will wait.  Have to wait for the resins to harden anyway. 


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< Message edited by Dreamin Hemi -- 6/10/2009 1:59 PM >

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RE: Duplicating an existing hull...ETHICALLY! - 6/10/2009 3:58 PM   
Hesco Racing


 

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Status: offline 		Remember to notch the bottom end of the rail at 45 degree to leave a gap for water to drain.


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RE: Duplicating an existing hull...ETHICALLY! - 6/10/2009 5:59 PM   
Dreamin Hemi



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Status: offline 		Already thought of that, but thanks.  Rails and notches were cut before I left and will be installed tonite.  Removal of the hull will be tomorrow morning.

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RE: Duplicating an existing hull...ETHICALLY! - 6/10/2009 9:32 PM   
Hesco Racing


 

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RE: Duplicating an existing hull...ETHICALLY! - 6/10/2009 10:31 PM   
c-cat


 

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Status: offline 		Exellent mold work, and a quick build to boot. Bet you wish the hatch was bigger for laminating purposes, looks pretty tight from the pics. whats the weight on her?

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RE: Duplicating an existing hull...ETHICALLY! - 6/11/2009 12:28 AM   
Dreamin Hemi



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Status: offline 		Will weigh once the first hull is pulled.


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RE: Duplicating an existing hull...ETHICALLY! - 6/11/2009 12:56 AM   
Dreamin Hemi



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Status: offline 		Was able to quickly assemble and glass in the rails before leaving for my DJ gig for the evening.  Hmm, hard to get in there while assembled, but had to try it this way.  Will be able to make a template once I'm able to outfit one of these hulls and be able to use less wood which would require less trimming of the rails.  The process is self explanatory.....using a bog mixture as a fillet in the corners and 2" 6 oz glass cloth tape.  The pictures tell more than I have time to write....(playing lots of music at a bar now and screaming into a mic!!!)


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