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SNobsessed
Grand Poobah Joined: October-21-2007 Location: IA Status: Offline Points: 7102 |
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How about a 1-1/2" mounted stone bit powered by a hand drill?
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“Beer is proof that God loves us and wants us to be happy.”
Ben Franklin |
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8122pbrainard
Grand Poobah Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41045 |
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Abe, You really shouldn't have that much of the old radius left even with saving some for a reference point and a spot to put the filled epoxy for bedding in the new wood. The flap disks may get in there as they will comform to some shapes but they wear out fast. A stone will get loaded up real quick. A flap wheel will get in there but it too will wear fast. I'd say go after what's left with the resin bonded disk. At a tangent to the radius a 4" disk will do it. Tim, I see your question has been answered regarding the resin bonded abrasive disk. Yes, the one that Andy pictured. |
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abolton
Groupie Joined: September-07-2005 Location: United States Status: Offline Points: 81 |
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Thank you, we have a Harbor Frt. here in town I will pick up some things. I just ordered all new skins and carpet from Christine's, and I'm working on getting new gauges from Livorsi S/W style ofcourse. I need to repaint the dash, restore the steering wheel and speedo's and re-chrome the Ski Nautique dash emblem. I hope to complete it with a new long block with the GT40 heads, a bit more cam and new carb. I love being on the Nautique year round, thats hard to do in Buffalo.
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ABE
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Hollywood
Moderator Group Joined: February-04-2004 Location: Twin Lakes, WI Status: Offline Points: 13513 |
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JoeinNY
Grand Poobah Joined: October-19-2005 Location: United States Status: Offline Points: 5698 |
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To me the issue of the stringers being glassed over the top comes down to how do you do that and still end up with a flat floor. With the wood to wood joint you simply sand down the stringers till they are flat and level, but to glass over you need to leave a predetermined gap and then add glass and then resand. Not a deal breaker with wood, but a lot more work and definitely harder to get perfectly flat. Certainly not something the factory was going to do, if someone else has worked out how to do it well I would interested to see it. When I did my mustang with non structural foam stringers I had to fully wrap them with many laminations for strength and because I was unwilling to sand through the layers of glass that I was relying on for structure I ended up with a very not flat floor. Coosa was my solution in the second set of stringers to get around this problem. Basically I glassed fully up the sides of the stringers, cut and sanded everything flush (making the tops of all stringers and supports that were going to have floor attached to them bare coosa on top), and then I would soak strips of fiberglass mat with thickened resin and place them on tip of the exposed coosa before putting the floor on top. I just didn't see another way to get a flat floor? Okieboarder if you are using those sanding disks and going through 10 a stringer you should really consider getting some flap disks. One diamond cutting wheel and 3 flap disks was the sum total of equipment I used to remove and grind the entire job on my 83 SN. Those tools produced better finish, cheaper cost, and quicker progress than previous methods which included combinations of sawzalls, bodys saws,grinder cutoff wheels, sanding disks, and the regular grinding disks. For any radius or cutout work I used the zip saw with flex attachment and mostly cartridge rolls, but also some with a 1 inch diameter flap disk drum. Many ways to skin a cat of course but with things that wear relatively quickly like the cutoff wheels and the sanding disks I find you spend most of the project working at less than ideal cutting speed, or stopping frequently to change disks/wheels. |
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TRBenj
Grand Poobah Joined: June-29-2005 Location: NWCT Status: Online Points: 21169 |
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Joe, flap discs look like this? Are these a home depot item? |
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JoeinNY
Grand Poobah Joined: October-19-2005 Location: United States Status: Offline Points: 5698 |
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ThAt would be them, I buy them at a manufacturing supply place. They are commonly used in metal body working. Less pressure yields excellent control and a flat surface, more pressure and the will remove a ton of material quick.
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abolton
Groupie Joined: September-07-2005 Location: United States Status: Offline Points: 81 |
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To get a Flat Floor...
I have a 27' Magnum that has fully glassed stringers, how they did it was on each side of the stringer they glassed on L-tabs set slightly higher than the top of the stringer to attach the floor to. When Idid it I through bolted two 5/4 x 4 P.T. pcs. of wood the entire lgth. of the stringer set slightly higher than the top. I then screwed my floor into those runners. It makes for a nice flat floor just be sure to seal the through holes in the stringers and use Stainless Steel nuts and bolts. |
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ABE
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TRBenj
Grand Poobah Joined: June-29-2005 Location: NWCT Status: Online Points: 21169 |
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Nothing listed at Home Depot, but Lowes shows that they have them. I assume go with the most aggressive grit that I can, right? DEWALT 36 Grit 4-1/2" Flap Disc |
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skfitz
Senior Member Joined: October-15-2009 Location: Herculaneum Status: Offline Points: 138 |
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regarding abolton's post ^^^
Is it necessary to bond the floor to the stringers and hull for structural reasons? I initially considered using a bolt-down floor mounted on tabs bonded to the stringers (very easy, better sub-floor maintenance, and easy to get a flat floor), but then I began having concerns whether the stringer-floor-hull bond was necessary for structural integrity. |
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JoeinNY
Grand Poobah Joined: October-19-2005 Location: United States Status: Offline Points: 5698 |
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Tim, those are good disks, a bit pricey and 24 grit would be nice but 36 will certainly tear right through. Is there a Harbor Freight around. These go a little quicker but the price is right and they get the job done.
As to attaching the floor to the stringers, It depends on how you design the system. I am usually trying to get additional strength out of the system by tying together. Additionally these boats bang pretty hard through the waves, a boat constructed with a floor screwed down to the stringers instead of as one bonded piece feels, sounds, and performs differently than a nautique. |
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TRBenj
Grand Poobah Joined: June-29-2005 Location: NWCT Status: Online Points: 21169 |
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Well, as luck may have it there is- and they have a bunch in stock. I didnt even know H-F had retail stores. Good looking out, Joe! |
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JoeinNY
Grand Poobah Joined: October-19-2005 Location: United States Status: Offline Points: 5698 |
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Dont get me wrong the harbor freight ones are not what I would go with if you could get some good industrial quailty ones in the 6 dollar each range, but buy two packs of the harbor freight ones and you will go a long way.
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8122pbrainard
Grand Poobah Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41045 |
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Not necessarily. I have found that a real coarse grit like the 24 wears out faster than say a 36. There are less abrasive particles the coarser you go so they get dull faster. I'd go with the 36. I don't get anything coarser than that anymore. The only advantage a 24 may have is with real soft materials. It won't load up as fast. |
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TRBenj
Grand Poobah Joined: June-29-2005 Location: NWCT Status: Online Points: 21169 |
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All good advice here. Looks like H-F has a bunch to choose from in the 24-80 grit range, so I may try a few different ones and see what works best. Lord knows Ill use them all eventually. Thanks guys!
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BuffaloBFN
Grand Poobah Joined: June-24-2007 Location: Gainesville,GA Status: Offline Points: 6094 |
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I also liked the 36 grit. We don't have a H-F around here so I got mine at Lowe's. They lasted a good while for the purposes Joe mentioned and leave a great finished surface. I think their only weak spot is that green glass clogs them up quick, but a quick buzz on rough concrete will usually clean them up.
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8122pbrainard
Grand Poobah Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41045 |
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Greg, I'm surprised you don't have one of these: They work great too. Plus, it saves the concrete!! |
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82 Nautique 1
Senior Member Joined: January-06-2007 Location: Rock Island, IL Status: Offline Points: 265 |
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I have used the plap disk, they work well
Just need to be carefull when you get close to the original mat because it chews up the mat faster that the resin !!!!! I have found the thin disk, or diamond wheel cutting to about 1/8" above the original glass then grinding works well. I am trying to figure out the best way to confine/collect the dust ??? I purchased a floor attachment for my shop vac to place near grinding work... hopefully it will suck in most of the dust What do you others to to contain the dust ??? |
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WakeSlayer
Grand Poobah Joined: March-15-2006 Location: United States Status: Offline Points: 2138 |
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I am waiting til it is about 30 or 35* out and windy. I refuse to do this inside my shop.
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Mike N
1968 Mustang |
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82 Nautique 1
Senior Member Joined: January-06-2007 Location: Rock Island, IL Status: Offline Points: 265 |
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Well, I would not mind doing it outside but sub freezing Illinois prevents that this time of year.
I am doing it in my garage. Devil of a time keeping things clean. Fire up my portable heater and "GIT ER DONE" My wife did ask how much longer her new car had to sit outside ??? |
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TRBenj
Grand Poobah Joined: June-29-2005 Location: NWCT Status: Online Points: 21169 |
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I wont grind inside anymore- it makes too much of a mess. Cold or not, the BFN is getting pulled outside this weekend to get the final hull grinding complete.
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Hollywood
Moderator Group Joined: February-04-2004 Location: Twin Lakes, WI Status: Offline Points: 13513 |
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Tarp off the sides, open up the garage door and setup a fan to blow outside.
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WakeSlayer
Grand Poobah Joined: March-15-2006 Location: United States Status: Offline Points: 2138 |
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We did not even break zero on Tuesday. Some warm clothes under the tyvek suit make it not entirely unpleasant to do it outside. |
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Mike N
1968 Mustang |
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8122pbrainard
Grand Poobah Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41045 |
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And Charlie (Brady) has been outside on a roof for 2 weeks in the twin cities. Carharts and go to work!! His biggest problem is getting the acetylene to gasify and not spit liquid. He's running a big "rosebud" hard brazing 4" copper refrigeration lines/valves/manifolds for something like 400 tons of cooling!!! |
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WakeSlayer
Grand Poobah Joined: March-15-2006 Location: United States Status: Offline Points: 2138 |
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Ouch. We were windy too. We have been throwing on the Carhart's just to feed the horses.... I cannot imagine having to work all day in these conditions. Although, it has been a balmy upper 20's today. Barely requires a jacket.
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Mike N
1968 Mustang |
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BuffaloBFN
Grand Poobah Joined: June-24-2007 Location: Gainesville,GA Status: Offline Points: 6094 |
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Pete, that's one of those things I always forget to order. I haven't seen them for sale around here and somehow they always get forgotten. I did remember once and they were out!
For belts I turn them around and they self clean pretty well, and the 36 grit doesn't hurt the driveway much. |
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8122pbrainard
Grand Poobah Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41045 |
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It's nice that the belts have been coming through with the unidirectional splice in them for quite a few years but have you noticed they still put the direction arrow on them??? woodworker.com for the rubber cleaning blocks. BTW, I get so much from Woodworker's Supply that they've classified me in the "PRO" category. Different web site and pricing. I also have a Woodworkers Supply Visa card for the points! |
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81nautique
Grand Poobah Joined: September-03-2005 Location: Big Rock, Il Status: Offline Points: 5778 |
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It's not really fair Pete that you live a stones throw from both Owl Hardwood and a Wooodworkers Supply Store. Man when I make a trek to those places I have to put aside 3-4 hours besides the time I spend staring at all the cool stuff. I did just realize last week that I have a Harbor Freight store on my home from work, that could be a problem. |
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You can’t change the wind but you can adjust your sails
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8122pbrainard
Grand Poobah Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41045 |
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Owl yes as it's on my way home but no with Woodworkers Supply. That's online ordering! You must be thinking of another woodworker type store. |
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81nautique
Grand Poobah Joined: September-03-2005 Location: Big Rock, Il Status: Offline Points: 5778 |
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Right you are, I was thinking of woodcraft in palatine. Usually my round trip will include both stops. |
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You can’t change the wind but you can adjust your sails
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