Shaping

Discussion in 'All Discussions' started by BassMon2, Jan 20, 2019.

  1. Mitchell

    Mitchell Well-Known Member

    Jan 5, 2009
    If you use tint (not pigment)...tint appearance is pretty finicky about how well finely sanded out your shaped blank is. The color shows up more vividly where the depth of the resin (of thickness of the wetted cloth) is greater and less vividly (to the point of near whiteness) where the coat is shallower. Any divots, scratches, changes in the texture of the sealer coat you used with the spackle, places where you applied more pressure with the squeegee drawing out more resin and flattened the cloth, places where you used less pressure and left more resin in place will have varying amounts of color.

    When you glass the deck, you will especially notice this where the free laps overlap near the rails and there will be spots of transition between three layers of glass, two layers and one layer. Also the free lap edges themselves will show up with color variation.

    I've only messed with tint (pigment is different than tint) a few times and would most likely only use it on a poly blank fine sanded with at least 220 grit paper ENDLESSLY... and then only with cut laps.

    The shape looks really good, and like jay said...color dont affect the ride, and the ride is gonna be fine!
     
  2. BassMon2

    BassMon2 Well-Known Member

    Jan 27, 2015
    Thanks guys! JayD, i tried with those bottom contours. Single to double to vee. I find it very important especially with the boards i ride. Im going to have to mess with the placement of the single and double im sure, but shaping wise i think i got a handle on it. Im actually really stoked on the way the vee came out.

    And mitchell, i totally get it now. As i did the deck i started realizing exactly what you mentioned. The resin hardened, i did the deck. Immediately realized why LB suggested the cut lap. Oh well. Im more concerned with a good sound board then color. But lesson definitely learned.

    A guy i work used to get on my case alot when i first got in the field. He'd give me some advice, and I'd ignore it. Not because i didn't believe him or trust him. But because i tend to learn better if i make mistakes. I'll always have that memory of why i shouldn't do somthing a certain way. Rather then just being told. Odd, i know. But it's how i am.

    Anyway, i did get the deck much darker then the bottom. On the second go i had a bit of the technique figured out.... slightly. It went smoother except one oh shit moment. I must of shifted the glass at some point, relief cut on the nose was way off. Frantically used scissors to adjust. Not ideal but disaster avoided. Glad I'm using quick kick. It's definitely a bit tougher as a first timer glassing, but i was able to handle it and i'll only improve from here.
     
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  3. LBCrew

    LBCrew Well-Known Member

    Aug 12, 2009
    As an educator, I've always told students, "You learn 100 times more making mistakes than you do getting it right on the first shot." It's the truth.

    I think you got pretty damn close to "red," brother... nice work. Lam looks tight and flat. It will get a shade darker when you hotcoat over it, and if you polish it out well, you'll get a deeper, richer color. If you leave it sanded, it will be pinker.

    The white spots you see might be due to the blank sucking up resin, leaving the cloth a little drier. Even if you wetted out the cloth completely, if EPS is not completely sealed it will pull resin out of the wet cloth. It's easy to miss spots with the spackle, especially early on in your board building life, and especially on the rails. Usually, I tell first-timers to double spackle... the first coat thinned with a little distilled water, the second coat straight out of the bucket, with a light sanding with 220 on a soft pad in between.

    With tint, decks are usually darker than the bottom because you have double layers of cloth. That's just how it goes. Either that or you put in more tint in that batch of resin mix. Pigments are generally opaque (if done properly) so it shows almost nothing in terms of color variation over laps, stratches, relief cuts, etc.
     
  4. BassMon2

    BassMon2 Well-Known Member

    Jan 27, 2015
    Makes sense. I'll definitely do the double spackle on the next board. When i sealed, there were spots (deep gouges) that i went heavier on then other spots (smooth flat spots). I tried keeping it thin. I did think about doing a second coat since with the white on white it's hard to tell what's missed and what's just a thin layer. Perfect example though. I'll have this in the back of my head on the next boards and won't make that mistake again.

    The deck came out much darker, i added more plus the extra glass. Next board im going to focus a bit more on color, do a cut lap, double seal. I'll go for a prettier look.

    Quick question, in the guides you sent me...it mentions white vinegar. You use that to clean the board prior to the hot coat rather than denatured alcohol? Any particular reason why one over the other?
     
  5. LBCrew

    LBCrew Well-Known Member

    Aug 12, 2009
    Yes... The denatured alcohol cleans surface contamination... particularly oils from your hands... off the laminated board. If it's contaminated in ANY way (oils, tape adhesive, etc), you'll get "fisheyes"... spots where the oils repel the hotcoat resin and leave the lamination dry. DNA removes those oils (use a clean cloth) and evaporates without residue. Once you've lammed the board, your bare hands should never touch it again until after the hotocat has been applied.

    White vinegar is an excellent solvent for cleaning up epoxy prior to cure. I use it to clean my spreaders and other tools... and if I get any on my bare skin, that too. But try not to get it on your skin. While it's not toxic, you can (will) build up an allergy to it if you repeatedly expose yourself to it over time, and get hives from it forever after that.

    Hotcoat brushes are a one-use deal. Don't attempt to clean them.

    Buckets can be left upside down to drain, then pop the cured resin out for reuse as lam buckets only. I use new buckets for hotcoating... then recycle them for laminating.

    Tip... before taping up your drip edge for hotcoating, take a sheet of new 80 grit on your soft pad, and do diagonal scratches across the entire surface of the board... one way, then the other, to create hatch-mark scratch pattern. You're not sanding... just thoroughly scratching up the surface to create a better mechanical bond between the lam and hotcoat. You're just giving it some "tooth" as they say. Then do your DNA wipe, check for dust or fibers from the cloth, flick out all of the loose brush hairs so they don't fall into your hotcoat, then mix up your resin... double the ADD F.
     
    Last edited: Feb 5, 2019
  6. BassMon2

    BassMon2 Well-Known Member

    Jan 27, 2015
    Thanks LB. Did just as you said. Just finished the hotcoat on the deck. Went smoothly. During my first nose to tail passes i was missing some spots. Think it was due to how i poured the resin out. Did my rail to rail passes and got full coverage. Second nose to tail passes. Around the perimeter on the rails. Walked away. Came back 10 min later, saw one little spot i missed on the very edge of the tail just above the tape. Dabbed that real quick. No other spots missed. Walked away. Greenlight suggests having a beer now. Im on it.

    I do see one little hair in there. Honestly, i just left it. Forgot to have tweezers at the ready. Letting it cure. Hitting the bottom with a hot coat. Fin box install tomorrow.

    We're in the home stretch here!
     
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  7. BassMon2

    BassMon2 Well-Known Member

    Jan 27, 2015
    Bottom hot coat is done. Had some trouble getting the resin pushed into the dam at the tail to create that hard edge. Not so much trouble, i was just trying to not hit the tape with my brush. Went over it when i was done and pushed it all in so i think I'm good. Going to be doing a gloss coat anyway.

    Do you still tape with a gloss coat? Im assuming the answer is yes otherwise you'd get drips. Assuming you make the tape dam as well. Clarification would be much appreciated.

    Fin box tomorrow. Another question i have on that. So from what i understand fin box goes in and all that, then it's grinded down flush. Didn't really look at the box until today. So it has tabs on the outside perimeter, on the corners of the long side. I got to assume those 4 little "lips" are supposed to lay flush with the bottom and that's what gets grinded/ sanded away? It's a factory 10.5 in single fin box.
     
  8. BassMon2

    BassMon2 Well-Known Member

    Jan 27, 2015
  9. LBCrew

    LBCrew Well-Known Member

    Aug 12, 2009
    That's right, BassMon... The tabs sit on the bottom of the board, on top of the hotcoat, and get ground off when you sand. Be sure to rout your hole so the box just fits so the tabs span the hole. I assume you did not put down a fin box patch to reinforce the area... that's ok. I always make a little "sock" of cloth for the box to help reinforce it a bit and reduce the amount of resin needed in the hole.

    For the gloss coat, I do not create a dam in the tail area, but I do tape a drip edge around the board mid rail. The edge is already there... you're just need to shape it to exactly what you need, then coat it with your gloss layer.

    I recommend sanding the board to perfection... literally a final "shaping" step with the sander done with 80 grit... before I gloss. You want to start your final fine sanding/polishing process with as high a grit as possible... 400 if you can. You're just getting the zits and wax off the surface, then polishing the scratches out. Lower grits mean deeper scratches, which will literally never come out with the polishing process.

    That means your hotcoat has to be sanded as if it was a finished product... no lumps (especially at your lap line and at your relief cuts), no dips, and a perfectly smooth rail and tucked edge all the way around. This will ensure you can start with at least 400 and progress through your grits and compounds to a high gloss.
     
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  10. Barry Cuda

    Barry Cuda Well-Known Member

    Nov 19, 2018
    I think you made a mistake. The red color.
    I would have gone with yellow. Yellow is faster in the tube. And it is so organic, hippie yoga chicks love yellow.......<grin>
    You got some skills, dude. Nice jobs far as I can see from the pictures.
     
  11. BassMon2

    BassMon2 Well-Known Member

    Jan 27, 2015
    Yeah LB no patch. Was doing some reading on swaylocks. General consensus seemed to be either will work fine. Patch obviously a bit stronger but along as you have a tight fit it would be strong enough. Also sounded like any repairs would be easier. So i went with no patch. We will see how it works and maybe do the patch next time depending on what i find.

    And barry! I went with red FOR speed. Damn. I'l have to do a yellow board next time
     
  12. Peajay4060

    Peajay4060 Well-Known Member

    Nov 14, 2011
    Dude, I want a test drive that thing.
     
  13. BassMon2

    BassMon2 Well-Known Member

    Jan 27, 2015
    Hey man, come round my way and id be happy to let you use it!
     
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  14. BassMon2

    BassMon2 Well-Known Member

    Jan 27, 2015
    So things just went south pretty quick. Nothing major, so it's actually pretty funny. This is going to get long winded....

    So let me start off by saying i commercial/industrial HVAC/R. The point being, i work on some heavy stuff. I bend copper and hard conduit up as big as 4-5 inches, hammer drill/core drill through 3 ft thick concrete walls, drill/hole saw I beams/q deck/thick gauge sheet metal. My point here isn't to say "look at how hard i am". You'll see my point in bringing this up, i promise. Also worth mentioning is because i don't do residential, i really don't deal with wood. And iv never been a wood worker.

    So all the tools for this build were my own. Except the router. That i asked pops if i could borrow. Since im using my old room as a shaping bay anyway, i never dug it out until last night. Knowing id need it today. Well his router is a monster. Bigger than my damn head. Felt it was over kill. And just didn't feel comfortable using it. So i decided to head to harbor freight and get my own router and some bits.

    Now, as a guy who uses his tools to make a living, i view harbor freight differently then your average home owner. Some stuff there is great and cheap. Others, like their drill bits..... just cheap. I literally have never drilled a hole with their bits. They snap everytime. All my other bits not from HF work great. I also don't buy power tools there. With the exception of tools that i need seldomly. For instance, i got a band saw that i only use if i have alot of THIN kindorf or conduit to cut. It actually works good but doesn't get heavy use. So anyway, this all crossed my mind. But it's foam and a 1/8th basswood stringer..... it'll be fine.

    Well it wasn't. First off, i didn't use a jig. That's on me, but i lined up the fin box, traced it, and then freehanded the hole. Honestly it was going great. Until i got to the stringer. It would NOT go through the stringer. I was taking it slow, letting the tool do the work.....nope. Wouldnt go. Don't know if it was the router or bit. But it wasn't cutting it, pun intended. So now im getting pissed. Im no longer letting the tool do the work and im fighting it. Whoops. My nice freehand hole turned into a janky mess when i finally got through. After removing the stringer i had two little tabs left of stringer on the nose and tail end of the box. Box wouldn't fit without removing this little itsy bitsy piece of stringer. Back to the router.... wood starts burning..... then i notice the hole getting deeper.....bit is moving in the chuck. Luckily it didn't go through the deck and i noticed it right away so it was contained. Eff this. I grabbed my dremel with a sanding wheel and just grinded the rest of the stringer. That went smoothly.

    So now im left with a bit of a mess, but the box fits and is straight. Although there are spots where i went wider on accident due to me fighting the stringer, other parts are nice and tight and kept the box straight. Due to my router mess, the box looks crooked, but after measuring i realized it's not. It's just my mess that's making it look off.

    Cool, disaster avoided. Time to stick it in there. I don't know how much resin it needs, so i mix up more than enough. Added some color to try and cover up my mess. Pour some resin in the hole, stick the box in.......no overflow of resin. Pull the box out, pour more resin in, stick box back in. RESIN EVERYWHERE! I frantically grab rags to contain it. It worked. But man. That did NOT go smooth.

    Box is in. It's straight. It's flush. It looks like garbage but my main concern isn't with looks. I was not worried about routing out foam and a 1/8 thick stringer. I deal with heavy metal daily. Nope. That 1/8 thick stringer gave me a run for my money.

    Although i think i would of been ok freehanding it if i hadn't started fighting the stringer, next time im getting the damn jig. And im throwing out my harbor freight bits. Not sure if that was the issue or the router or what. Im just happy i didn't ruin the board and was able to save it.
     
    Last edited: Feb 6, 2019
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  15. JayD

    JayD Well-Known Member

    Feb 6, 2012
    Live and learn dude. First time i caulked a bathroom sink it looked like seagull poo lol!
     
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  16. BassMon2

    BassMon2 Well-Known Member

    Jan 27, 2015
    Haha! The funny part is when i realized my pops router wasn't going to be used, i almost decided to use my drill. I do it all the time on metal fan brackets and stuff to get a customer by if it's the weekend and supply houses are closed. Drill a hole or use a existing hole, pull on drill to essentially cut the metal with a drill. It works. Decided not to do that since HF routers are cheap. Just use the right tool......i would of been better off with a drill and winging it.
     
  17. sisurfdogg

    sisurfdogg Well-Known Member

    Jun 17, 2013
    First time I hit a stringer with a router it was damn! this is tricky, the router likes to bounce around and it has a life of it's own. Lucky I had a jig and finished it with a dremel but when I placed the fin box in (FCS 2) and the resin kicked it pushed the box up a tad so it wasn't flush with the deck. Not fun sanding the box flush LOL.
     
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  18. LBCrew

    LBCrew Well-Known Member

    Aug 12, 2009
    Lol! Great story, BassMon. Well told...

    If it's that orange "trim router" sold by HF, I've been using that same "tool" for about 10 years, but I swapped out the bit. The thing sucks. But as a backyarder... I just use a jig and make it work. I put a zip tie around the body once I set the depth so it won't slide while in use... which it does, as you've found out.

    Oh... and I like to use a small, very sharp chisel to get that last bit of stringer out.
     
    Last edited: Feb 7, 2019
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  19. BassMon2

    BassMon2 Well-Known Member

    Jan 27, 2015
    Yeah man. I figured a HF router would be fine for just cutting fin box holes. Turned on me so quick. I can deal with the router, i have a feeling it was the bit. Next time i'll buy quality bits. Like i said, i should of known better.

    I'll totally make my own jig next time. I know I'm opening a can of worms freehanding but it really was going good until the router/bit shortcomings became apparent. Live and learn. Major disasters were avoided so i can get a good laugh out of it.
     
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  20. MrBigglesworth

    MrBigglesworth Well-Known Member

    Jun 29, 2018
    You KNOW Brooke’s favorite color is yellow ... and her birthday is in June.
    You takin orders yet? Hahaha
     
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