10" in 13 days
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kevyluvu
23:25:36 Sun
May 1 2011
10" in 13 days
Poof gone.

baub
00:41:21 Mon
May 2 2011
Re: 10" in 13 days
Wow !!!!

dredger
06:48:02 Mon
May 2 2011
Re: 10" in 13 days
Kevin, would or could a extra winch on the bow make it easier to move the hose/nozzle, ??. left or right, ??????.

peluk
18:11:57 Tue
May 3 2011
Re: 10" in 13 days
There will be a lot of wracking strain on those welds Kev.

peluk
16:22:30 Thu
May 5 2011
Re: 10" in 13 days
My thoughts were that it would be best to have a double deck or box construction to keep the twisting to a minimum.It would be much more expensive but twisting or wracking will embrittle the aluminum and crack the welds.Nobody on here has mentioned the dredge that busted up last year.

dickb
17:08:09 Fri
May 6 2011
Re: 10" in 13 days
If you built a 36" or 42" trussed railing system around the perimeter of the deck you would gain a lot of twisting stability, plus add safety from water washing over the sides and ends.

I really like what your building, and think that it will be a very stable platform to work from.

Lots of good fortune to you!:smile:

Dickb

peluk
03:30:03 Sat
May 7 2011
Re: 10" in 13 days
Kev,I don't know when Cripple Creek camp closes but I don't think it's that early.That railing idea sounds promising.A box deck would be heavy as well as expensive.

I had been looking at plastic pontoons out of curiosity.I really don't see a problem with aluminum ones but plastic was what I read up on.I like the take apart feature.One manufacturer uses a joint between sections that comes and goes in any kind of sea.It works well in protected waters however.

dickb
14:47:25 Sat
May 7 2011
Re: 10" in 13 days
Kevin:

I'll offer two opinions and say that they are food for thought. It's up to you to decide what works best for your conditions.

1, I would have reversed the deck lay out and dredged off the stern. Put the pilot house at the bow and built a spray shield across the bow to be able to point the bow into the swell.

2, I would make up 4 55 gal poly barrels filled with concrete with an cross at the bottom to hold them in the sand and a 3/4" rebar u-bolt that is welded to the cross and ends as a loop at the top to attach the anchor rode. The cross would also provide stability while stowed on deck. By using a 4 point anchor system you can adjust winchs to move the hull while dredging and when an area has been worked all that you need to do is re-position two of the anchors to work the next block.

Lots of good fortune to you.

Dickb

dickb
16:56:33 Mon
May 9 2011
Re: 10" in 13 days
Kevin:

Really taking shape nicely! Looks like you will be ready for the barge in time.

Lots of good fortune to you.:smile:

Dickb

Diamondhunter
20:01:50 Tue
May 10 2011
Re: 10" in 13 days
Beautiful!

dredger
21:12:15 Wed
May 11 2011
Re: 10" in 13 days
:clap::clap::clap:

dickb
23:04:35 Wed
May 11 2011
Re: 10" in 13 days
Kevin:

That is an unbelievable amount of work that you've accomplished.

Certainly looks great.

You have every right to be proud of her.

Lots of good fortune to you! :smile:

Dickb

dickb
19:08:10 Fri
May 13 2011
Re: 10" in 13 days
Hi Kevin:

Glad to hear you made it on time. Look forward to seeing the pictures now that she is pretty much finished.

You seem to have a good understanding of the pump and jet capabilities, so until you get wet and see the suction that it develops you won't know for sure if it will deliver the performance you expect. By copying a past proven design, you probably will get the results that you designed her to deliver. Thats a lot safer way to go that just building a project like this one and praying that it will work.

I expect that you will be pleased with the way she works, just expect that there will be some tweaking necessary to get her running the way you want.

If your not getting enough suction at the nozzle, by adding extra 10" between the jets and the flair should help. The water from the jets begin pushing on the 10" water column when the water from the jets enter the 10" pipe and the pressure from the water jets forces the 10" water column to move up the log, until friction depletes the water energy, or the increased size of the flair increases cross sectional area of the water column.

All in all, I think you did a spectacular job in just 15 days. Kudos to you and the build crew. :smile:

Lots of good fortune to you.

Dickb

growler
01:09:56 Mon
May 16 2011
Re: 10" in 13 days
I do not know how use full this link is, or how accurate it is. Another tool or /fool.http://www.natice.noaa.gov/ims jimmy

growler
01:52:10 Mon
May 16 2011
Re: 10" in 13 days
nother link fwiw. http://www.natice.noaa.gov/products/products_on_demand.html

cubsqueal
02:26:53 Mon
May 16 2011
Re: 10" in 13 days

Is that craft beautiful or what! You guys should get a contract building the next space shuttle!

ME
03:34:40 Fri
May 20 2011
Re: 10" in 13 days
And here you led us to believe you were barely making wages under the ice- beautiful dredge, hope you have a great season. HH Mark

Lanny_in_AB
04:01:43 Fri
May 20 2011
Re: 10" in 13 days
Fantastic project. Nicely done. Beautifully built.

All the best getting that Nome gold--it's bright and beautiful stuff,

Lanny

Muley
02:33:57 Sat
May 21 2011
Re: 10" in 13 days
Kev,
Maybe I missed it or maybe not but what her name? She's beautiful and like you said let's hope she works as good as looks.
Muley

popandsonminers
01:01:29 Mon
May 23 2011
Re: 10" in 13 days
Well, it has been fascinating to follow this chapter in your Nome/gold/dredge experiences. You are unique in your drive and passion. I hope you learned enough and made investor contacts to build your own dredge, now, as it seems your getting close to ready to be your own owner/operator??

dredger
05:48:25 Mon
May 23 2011
Re: 10" in 13 days
I will second that motion, Popandson.

:clap::clap::clap:

ArcticDave
16:37:13 Tue
May 24 2011
Re: 10" in 13 days
Kev,
Great thread! I just read your ice diving thread too, good stuff man! I feel I owe you a beer just for the entertainment alone, not even counting the great info!
Hope all your hard work pays for you this year, Good luck!

Electrumau
17:36:14 Mon
Jul 11 2011
Re: 10" in 13 days
Amazing, just AMAZING in that short a period of time. I'll look for you offshore when I'm there at the end of the month. MUCH SAFETY and success in filling the boat with that oro de mer....

dredger
10:16:11 Tue
Jul 12 2011
Re: 10" in 13 days
Hey Electrumau,

Please check out " Ice Diving Thread " ( front page,)

That will show you how Amazing this guy is, :smile:

dylanemcfarlane
11:26:45 Sat
Oct 1 2011
Part II ???
Great execution, and very impressive.

Is there a Part II to this story - how did the dredge perform in Nome? Recover your costs? What did you have to modify? Other problems/lessons?

I'm in Nome the next several months, so I'll have a look and see if you're out there till termination dust..
Dylan

DanfromNY
00:19:04 Sun
Oct 30 2011
Re: Part II ???
Great story Kev, Great Pics too.I took some pics of the "Argo" before I left Nome so I could send them to Igor. He told me thats the way its supposed to be, not quite on the trailer with the I beam bending the pontoons,ha ha oh well, he makes me laugh too. His first few clean ups he was having someone else clean his concentrates, I strongly suggested he learn to pan and do his own clean ups.That may of helped with his average too:smile:

Greg_in_BC
04:21:21 Tue
Nov 1 2011
Re: 10" in 13 days
That is a very cool build. I know aluminum is strong and is good because it can flex, I was wondering if there were any issues with stress cracking of any of the arch members from the swell of the ocean while operating with full weight load of equipment and slurry?

Sure would love to try ocean dredging - or any dredging again for that matter.

dickb
19:57:33 Mon
Jan 9 2012
Re: 10" in 13 days
Phenix:

How do I send a PM to You or are you on GPAA.

Dickb

Phenix
21:53:10 Mon
Jan 9 2012
Re: 10" in 13 days




Lanny_in_AB
01:19:53 Thu
Jan 12 2012
Re: 10" in 13 days
Kevin,

Great update! Nice to know a few of the things that happened.

All the best,

Lanny

trnelson
10:18:31 Mon
Jan 16 2012
Re: 10" in 13 days
That thing is a beautiful work of art. My favorite thing about mining is the fabrication process. I had no metal working experience until I started building mining contraptions. Just remember the golden rule: don't turn your yet-to-be-mined gold into some other lesser-valued metal (iron, aluminum, etc).

Anyone know the status of that dredge submarine on an excavator undercarriage in Nome? I heard it went out once and hasn't left its fenced 'sub pen' since.

peluk
04:49:06 Tue
Jan 17 2012
Re: 10" in 13 days
trnelson,the amphibious submersible dredge sits beside the road in the penned in area you mentioned.The owner has put his hopes into a clambucket dredging operaton and I don't know how that is doing.They were hard at it last season for extended periods with that clamshell operation.

Word was the sub got some water into its hydraulic system but I did not ask the owner so it may not be accurate.

trnelson
02:48:09 Wed
Jan 25 2012
Re: 10" in 13 days
Quote: peluk at 04:49:06 Tue Jan 17 2012

trnelson,the amphibious submersible dredge sits beside the road in the penned in area you mentioned.The owner has put his hopes into a clambucket dredging operaton and I don't know how that is doing.They were hard at it last season for extended periods with that clamshell operation.

Word was the sub got some water into its hydraulic system but I did not ask the owner so it may not be accurate.


Sheesh. For such a beautiful contraption you'd think they wouldn't just give up because of a leak. Must have more money than ambition to see the machine pay for itself.




dickb
21:11:37 Sat
Feb 4 2012
Re: 10" in 13 days
Here's a Utube Video that might interest some of you ocean dredgers. Argo on steroids. SMILE

http://www.youtube.com/watch?v=0yXIlfdpxlM&feature=mfu_in_order&list=UL

Check out video # 16 also.

Dickb

jrcrumii
05:05:58 Sun
Feb 5 2012
Re: 10" in 13 days
Looking at this thread has my engineer going in overdrive...lol... I was looking at building a ship, boats go in lakes..lol... tell me if anyone has used this material for decking..http://www.mcnichols.com/product/6715316324?navCode=cc:bar&navCode=avc:swgrecbar2&navCode=avc:bargrtswaged2

looking at the strength to weight on it, impressive..

thanks,

Jeff

dickb
18:41:23 Sun
Feb 5 2012
Re: 10" in 13 days
I have installed it and it's a good product. They also make a similar product out if fiberglass with Tungsten carbide grit on the surface. It's nasty to touch and will sand the bottom right off your shoes.

Most of the time I see tread plate used as decking.

Here's a hot link to your post, you need to put the link on it's own line.

http://www.mcnichols.com/product/6715316324?navCode=cc:bar&navCode=avc:swgrecbar2&navCode=avc:bargrtswaged2

Dickb

Sloane72
15:31:02 Sun
Feb 12 2012
Re: 10" in 13 days
So how did this rig do, it's impressive but I was hoping to see how well it pulled in the gold?

overtheedge
18:54:57 Sun
Feb 12 2012
Re: 10" in 13 days
Sloane, I think it was Mark Twain that said something to the effect that, "A mine is a hole in the ground with a liar standing next to it." I'm not disparaging anyone.

Few miners will be completely open about their success. Some will brag about their modest successes and many will tell you all about the problems they faced and modifications they MUST do to achieve success. I would contend that most just get by from season to season and admit it. Many have to take a day job in the off-season. Expenses are real high. Air freight eats cash fast and that is the only way to get needed repair parts in. Then factor in the weather and the season gets real short real quick. Even a few great days might fail to cover the season's expenses.

Would you brag about getting a bunch of gold on a public forum? Nicht ich. But it sure would be nice to recover enough gold to be in the position to decide about whether or not to brag.

dickb
01:08:33 Mon
Feb 13 2012
Re: 10" in 13 days
Hi Kev:

Interesting report on the boat. The diesel should not be running dark. The injector pump is probably not set right. They set them in the factory to run at max load. A good diesel mechanic can lean it out to the point that it's running at the same load point on the pump but only burning enough diesel to develop that much Hp. The black smoke is excess diesel that is not being consumed by the engine because the load of the pump in not enough to burn it.

Looks like the new build is comming along well. Keep the photos and reports coming.

Dickb

Darkstar_Mining
05:02:17 Thu
Mar 29 2012
Re: 10" in 13 days
Hands down the most exquisite of vessels I've seen headed to Nome yet. You guys are seriously something pulling that off in the time frame you did. I'm sure you are, but I'll say it any way you should be proud of your baby! WOW!Cant wait to see it up close..

Trevor87
23:09:44 Thu
Mar 29 2012
Re: 10" in 13 days
Wow, impressive! I hope you have fun, and do well!

Darkstar_Mining
15:51:53 Thu
Apr 12 2012
Re: 10" in 13 days
HEY KEVIN, how aboutb some pics or vids of the new build..thats nice platform to start with, how long is she?. thanks good mining.

Darkstar_Mining
18:34:24 Sat
Apr 14 2012
Re: 10" in 13 days
Looking really good Kev, I really like the undercurrent on this box, it shows this is getting on in your number of builds. I also really like how you used the new angle and curved connections for the jet, this should solve the problem with the 22.5degree angle slowing suction you saw with the Argo. This being an existing tritoon platform, you answered the question, what to do with the tailings over the center toon as well.. Looks like you have the majority done. I sure can't wait to see her up close.. God bless and good mining...

dickb
22:02:56 Sat
Apr 14 2012
Re: 10" in 13 days
Really looking shipshape! :smile:

Dickb

BobAK
23:06:32 Sat
Apr 14 2012
Re: 10" in 13 days
Well, I'm definitely impressed, Bob

growler
14:32:03 Sun
Apr 15 2012
Re: 10" in 13 days
Beautiful, Jim

dickb
15:38:39 Sat
Apr 21 2012
Re: 10" in 13 days
The build is progressing nicely. I really like the gantry to launch the jet.

Thanks for the update. :smile:

Dickb

thegoldgopher
01:24:36 Mon
Apr 23 2012
Re: 10" in 13 days
I am tremendously impressed with the scope and detail of your work. I worked for Frank Wade, founder of Offshore Pipelines, Inc, one of the world's largest pipeline burying outfits.

Your efforts are commendable, sir, and that is from someone who was there on projects of a scope of a magnitude of 10 of this project.

Your project is well thought through. It is well planned. Reality takes over, and then it succeeds or fails, according to so many variabies in the equation.

At least you have anticipated and planned for many things that most newbies just ass-u-me, and then find out about later.

I wish your project well, and I can see quality planning, welding, design, and other things.

There are three things that are vital to any gold mining operation: picking up the ore, separating it, and extracting the last 15% of the fines. If any one of those falls down, the end result suffers.

Concentrate on those three. Fancy systems are nice, but remember:

The old guys used to take rough sawn lumber and make sluices, and come up with some respectable quantities of gold.

It's all hair splitting. Do the basics, and after that, it is what it is. If you hit those three areas accurately, your results will be as good as they will be.

Steve

Darkstar_Mining
03:35:07 Mon
Apr 23 2012
Re: 10" in 13 days
I really like it all..IMPRESSIVE...God bless and good mining. :doublethumbsup::clap::clap::

Macheteman
20:40:19 Tue
Apr 24 2012
Re: 10" in 13 days
Does she have a name yet?

dickb
22:27:10 Tue
Apr 24 2012
Re: 10" in 13 days
Here's one for her.

"MISS MY LIFE SAVINGS" :confused:

Dickb

thegoldgopher
02:32:43 Wed
Apr 25 2012
Re: 10" in 13 days
re: anchor points: on the large barges I worked on in the Gulf of Mexico, we used four or eight point anchor systems. I would not go with less than four. With two, I think you'd spin a lot.

thegoldgopher
04:40:44 Wed
Apr 25 2012
Re: 10" in 13 days
As a weldor since 1974, I must say that I am impressed. I see what looks like a gun in one picture, and in another what looks like a SpoolMatic. Just what welding processes did you use on this, and what machines? Did you use any pulsed MIG? Lastly, which alloy wire did you use as filler and why? Which shielding gas?

Very nice work.

Steve

thegoldgopher
16:32:51 Wed
Apr 25 2012
Re: 10" in 13 days
The first inspsection after the first year's use should be highly interesting. MIG does have some negatives, lack of penetration and cold lap being a couple. You will flex and load this to the max during the first month by just loading up the pipes and bringing on board a lot of material. I will be interested in your reports of the first inspection, and how everything held up. IIRC, you said some people gave you advice for extra gusseting, etc, and it will be interesting to see what held and what worked loose. There will be a lot of flexing, and a lot of cold water. Not to worry, the next one will be much better.

Darkstar_Mining
13:34:38 Thu
Apr 26 2012
Re: 10" in 13 days
I am Feeling a tad bit of looking down of ones nose in some of the posts on your thread here Kevin. I personally think that this is going to be one of the most productive of vessels we'll see on the water this summer. If one thinks that what has been created in this project of yours is in any way lacking or that they can create a better piece of equipment in the same stature and size, or their skills of fabrication are superior to yours , or that you have no clue as to what your vessel can endure at sea, or even if they have a crystal ball that can predict your outcome of your next project, let the pictures fly!!! Otherwise lets keep it positive on here This dredge is an example of perseverance, ingenuity, and good ol' determination. So when we feel the urge to offhandedly condescendingly compliment another's work, let us first remember where we started ourselves, and TRULY respect the hard work of others even if we would have done something differently. Looking like we'll be admiring mediocrity Kevin cause I still haven't seen a new thread!!!:confused::devil:

thegoldgopher
23:00:30 Thu
Apr 26 2012
Re: 10" in 13 days
I have no surviving pictures of a 8' x 20' trailer I built to mine placer in Mojave county, Arizona. 5hp pump, 2 incher, 10' sluice, trommel, 100 gallon recirculating water system. Three times, we did 2 oz. in one day, less, other times, you know how consistent gold mining is. I have no surviving pictures of offshore platforms I helped build, erect, or service, nor any of the underwater work we did. The pipelines are underwater.

Other than that, if you go to Hoover Dam, you will see my work all over the place. I will not bore everyone here with the listings of what and where, but it is there. In Las Vegas, I still have commercial structural steel that's standing. Miles and miles of fencing, and ornamental metal. Water and Power Building in Boulder City, NV. The awnings may still be on the enlisted men's and officer's mess halls at Nellis, AFB, haven't been on base lately.

Then there's all the structural welding that is covered up and not visible.

As to building a gold dredge, I don't see anything I could not do, given the time, equipment, and money. It's just metal. And some of the stuff I have seen, I would not lay claim to having laid a hand on it, it's so bad. Who cares if anyone has built a bad gold dredge? And who judges what is good and what is bad?

The dredge under discussion sure looks pretty. But I'll bet you a double pepperoni pizza that they find problems the first week. And make changes. And identify outright mistakes. And find bad welds. We just do our best, and roll the dice. Or stand to the side and criticize.

I have decided to stick to my dredge head(s) ideas, get them patented, and make money while sitting at home. Alaska already seems to have its share of unique people.

Steve

kevyluvu
03:35:19 Fri
Apr 27 2012
Re: 10" in 13 days
Well, when you find someone to give you the money to build your Nome dredge because of all your great ideas be sure to post pictures so I can point out all your flaws. Your ideas so far hold no merrit and they come off as nonsense because you lack the experience. The dredge won't work, but I'm sure all your welds will hold.

My reputation preceeds me as someone who can build and operate a succesful dredge. I am a proven commodity. I don't build dredges to sell them. I build them to staff them and pull up gold.

I will do my best, which is better than good enough and you can stand to the side.

-Kevin



dickb
04:32:09 Fri
Apr 27 2012
Re: 10" in 13 days
Hi Kevin:

Looking real good. See the end in site. Safety pipe should do the trick. Nice shots of the sluice. Trailer should hold her nice and tight.

What's her length and beam? When does she need to be at the barge?

Keep up the good work. :smile:

Dickb

thegoldgopher
16:29:25 Fri
Apr 27 2012
Re: 10" in 13 days
Kevin, would you PLEASE make notes of the welding failures, and their failure analysis? Causes - flexing, vibration, lack of fusion, collision, etc. I am always interested in things welding, and would like a recap, and think it would be highly informative to all fabricators and weldors here. Failure analysis is highly educational. At least for those of us who don't know it all already, that is.

Steve

Darkstar_Mining
13:45:29 Sat
Apr 28 2012
Re: 10" in 13 days
Attitudes change real quick when confronted with an actual challenge,seems we all have an opinion but very few have the actual experience of doing a build like this. I am taking pictures and building as we speak and just before we leave for Seattle we will post pics. I cant wait for the master fabricators to point out all my mistakes, it,s going to be awesome!!! She isn't as big as the juliana but she will be a fine vessel for my first build..

THANKS FOR ALL THE INSPIRATION KEVIN... God bless and good mining. -Bill- :doublethumbsup:

Macheteman
14:18:58 Sat
Apr 28 2012
Re: 10" in 13 days
Kevin,

She's a thing of beauty. I think it's a perfect design for the vessel, especially the stern center pontoon, and the craning jet/flare. Brilliant... I might have kept the power hose single til after the 180 for laminar flow, and would certainly think about hinging the riffle frames, with the hinge side vertically adjustable for quick clean outs on site and the ability to change up the sluice medium. But what do I know......

thegoldgopher
14:32:57 Sun
Apr 29 2012
Re: 10" in 13 days
Did she ever get a name? It's bad luck to have a boat with no name. Even Forrest Gump knows that! I know there was one about money, but hey, she's a classy lady. Give her a classy name.

dickb
04:23:38 Mon
Apr 30 2012
Re: 10" in 13 days
Hi Kevin:

The lay flat to the jet worries me. Lots of unsupported water weight there. Every thing else looks really good and shipshape.

JMHO. :smile:

Dickb

AuTSaurus
07:30:58 Mon
Apr 30 2012
Re: 10" in 13 days
Kev,

If you made another cradle like the one you have with the rubber, maybe you could attach it at/with the two bolts at the top of the flare connection shown in your picture.

That way it would always be supported, even when you raised and lowered the winch cable for the jet.

Maybe?

Greg

Darkstar_Mining
15:21:07 Mon
Apr 30 2012
Re: 10" in 13 days
Looking AWESOME!!!God bless and good mining. :doublethumbsup:

dickb
18:35:26 Mon
Apr 30 2012
Re: 10" in 13 days
Hi Kevin:

I saw the support, my worry is strain on the camlock on the eductor and chaffing at the support bracket. You'll know how she works after sea trials. Way easier to work out the bugs in WA, than AK.

Still think she is a super dredge. :smile:

Dickb

Prospect09er
20:50:46 Mon
Apr 30 2012
Re: 10" in 13 days
Stick out any further and that train is gonna get ya. :smile: j/k

Awesome job!

What blade are you using in your saw to cut that 6061?

Darkstar_Mining
13:39:34 Tue
May 1 2012
Re: 10" in 13 days
You ain't kidding Kevin, I had safety goggles on and was getting pommeled by slivers! HOT!! I want a spool gun, we Tig welded all of our welds, needless to say again I want a spool gun!! It took 3 days just to reinforce the framing between the pontoons. We would have been done in a half day leaving alot more time for other work. I see how clean the gun welds and I am convinced. God bless and good mining.:fish_whack:

Darkstar_Mining
17:23:17 Tue
May 1 2012
Re: 10" in 13 days
Ya, all those hard to reach places are going to get mig welded when we get to Nome, it would probably be fine as is but you never know, the Bering Sea is an unforgiving mistress. Well, Mike and I are climbing into the truck in 10 mins. I will upload the photos this eavening we want to beat the rush hour traffic in Cleveland. Our journey will be 24000 miles of freeway, wish us luck. Igor is expecting us by the fifth. God bless and good mining.:doublethumbsup:

thegoldgopher
14:44:02 Wed
May 2 2012
Re: 10" in 13 days
check this out:

http://www.lincolnelectric.com/en-us/support/process-and-theory/Pages/pulsed-mig-detail.aspx

It is about pulsed MIG. What pulsed mig does is to form a ball of molten metal on the end of the wire, then like TIG, at the proper moment, it zaps it with current, putting it at exactly the proper spot. It is a preprogrammed thing in the computer that choreographs a series of changes in voltage and wire speed to lay down a series of puddles that form good penetration, good fusion, and really great looks.

The Lincoln site says it saves wire and gas. In our newsgroup welding group, the guys who have used pulsed mig for aluminum say it is the cats meow, looking like TIG, but as fast as any MIG. I'd get a demo before comitting to any new equipment.

I've pulled many of those little wires out of a lot of parts of my body. Yeah, you hardly feel them going in. That is what safety glasses are all about, but when I'm using a wire wheel, I like a full face shield.

dicklaxt
21:52:27 Wed
May 2 2012
Re: 10" in 13 days
Been following along a bit,but missed out some where.I thought there was going to be some sea trials or is that being done in Seattle and/or Alaska.It appears it is enroute to some where,where's Egor at.

dick

jcazgoldchaser
02:29:15 Fri
May 4 2012
Re: 10" in 13 days
Quote: kevyluvu at 07:37:26 Thu May 3 2012


Took down the pictures so I could run them through a file size shinking codec. Will reupload them soon.
I've been using this online resizer; pretty simple to use:
http://www.shrinkpictures.com/


molecule_counter
17:48:48 Sat
May 5 2012
Re: 10" in 13 days
DS, if you go West from Cleveland, it's much closer to the west coast than going East for 24000 miles. Smile, good luck in your mining project.

thegoldgopher
00:56:31 Sun
May 6 2012
Re: 10" in 13 days
Went online today to research pulsed MIG, just in case I do any aluminum fab: Very efficient. Lower wire and gas use. TIG looking welds. Deep penetration. Less burnthrough. Short learning curve.

The upside, a full rig is $10k. If you have your own gas bottles, that is.

Steve

thegoldgopher
15:23:02 Sun
May 6 2012
Re: 10" in 13 days
http://www.youtube.com/watch?v=LZzAcXapok4&feature=relmfu

pulsed mig youtube

dicklaxt
23:05:48 Mon
May 14 2012
Re: 10" in 13 days
Did it make it to the barge on time?

dick

thegoldgopher
15:40:08 Tue
May 15 2012
Re: 10" in 13 days
Kevin: As I posted once here before, please document welding failures. I think it will make the next dredge better. There will be a tremendous amount of flex in this, as it is built as a box, with two runners along the full length. There is a tremendous amount of diagonal stress that one would not have with a monohull, or barge. Then, like a Hobie Cat, there is a basic trampoline across it all, holding the pontoons together, AND, a tremendous amount of weight on that. Add the flexing and torquing associated when you winch, and it is easy to leverage and put strain on all the welds.

I would personally investigate MIG pulsed weld for the next one. They are $10,000, but you spent way more than that. And with the pulsed MIG, you might be able to get it done with just one, as their production rates are up there. And you can get them used, too.

I'm sure you've already learned a lot from this one, and it is just starting. Your failures and catastrophes will teach you more, and that part will be the important stuff.

Keep us informed on how you're doing, how much you're getting (secretly, of course, with words like a little, some, a lot, etc) and how things are working vs: how they were intended to work. And that includes welding. It is done with the idea that it's going to stick. Then reality, weather, rough seas, other boats, collisions and bumping, torsion, cold temperatures, et al rear their ugly heads.

It did come out looking awesome, tho, didn't it?

Steve

Prospect09er
18:57:02 Tue
May 15 2012
Re: 10" in 13 days
thegoldgopher

In a couple weeks, there will be plenty of dredges in Nome for you to examine. All different sizes. Nearly a full spectrum of manufactured dredges will be present, afloat off Nome this year. Since itís painfully obvious you need to be versed on the functional operation of gold production dredges, this would be the perfect opportunity for you. Trying to reap information strictly from internet forums is poor R&D. You might be interested to know that welding is only one part of the whole equation.

You might also be a bit more circumspect of premature evaluations and unwarranted criticism of others.

kevyluvu
02:42:03 Wed
May 16 2012
Re: 10" in 13 days



dickb
04:50:13 Wed
May 16 2012
Re: 10" in 13 days
Hi Kevin:

She looks sweet. I like the way she is riding in the water.

I suspect that while dredging she will be sitting level in the water. Everything looks real shipshape and well laid out. Should be a real gold getter and turn a lot of heads in Nome.

Have a great year and be safe. :smile:

Dickb

thegoldgopher
02:15:45 Thu
May 17 2012
Re: 10" in 13 days
Time will write the final chapter, won't it?

Looks great. Going to love to hear the updates on operations.

I fail to see any criticisms on my part. I know there are going to be weld failures in the cold welded cold lapped welds of this MIG rig when it hits cold water. I am stupid in many ways, but I do know just a little about welding. Even owned the types of welders Kevin used on this one, and know their weak spots. So, I suggested that documentation of the failures, and the LEARNING from those would be a good thing. I do also predict that if this season turns out to be a pretty good one, that Kevin will invest in pulsed MIG for the next one, or to service this one.

So, with not even sea trials to base anything on, I guess it's just straight into the fray to find weak spots. Just hope it's not anything major.

Time will tell, won't it?

jcazgoldchaser
08:33:44 Thu
May 17 2012
Re: 10" in 13 days
Man that looks fantastic.

What sorts of safety equipment do they require up there?

kevyluvu
04:07:42 Fri
May 18 2012
Re: 10" in 13 days

To Steve the "know it all troll". The boat was built by a professional company years ago and has already seen multiple years of use in ocean conditions with much more weight than we are running. You know nothing about the process they used to weld the boat. You know nothing about building and operating a successful dredge. If you came to Nome you would fail miserably. I will not document S@%t for you and I will not be giving this forum updates on operations any longer. I joined this forum to help people. People like you leave a bitter taste in my mouth,and I have no desire to give my knowledge to help someone like you.

jcazgoldchaser
04:50:30 Fri
May 18 2012
Re: 10" in 13 days
Well, that sucks. But couldn't say didn't see it coming. You can't change them, all you can do is ignore them. :mad:

Hope you'll enlighten the rest of us. Pretty pictures without a low coherence interferometry graph were doing just fine. :smile:

Stay warm, stay safe, and best of luck in your endeavors!

JCAZ

growler
19:52:40 Fri
May 18 2012
Re: 10" in 13 days
Kevin, That looks Sweet!!!. I believe with your quad jet, you will be processing/recovering 2-4 times than normal. You should be able to use your throtle differently (rpm per depth). I have not seen in your pics or posts mention of trailer tire inner tubes to minimize fight with suction hose ( fullhose pull- empty hose slack ) altho dont look like you will be pumping water only much! Great boat, jim

thegoldgopher
22:06:13 Fri
May 18 2012
Re: 10" in 13 days
Empty propane bottles make a down and dirty flotation device. Mostly cheap or free, and give around 30# bouyancy. If you barge your stuff up there, you can pick them up stateside for free, or $2 at yard sales.

Steve

dicklaxt
12:47:47 Sat
May 19 2012
Re: 10" in 13 days
Darn I wanted to see her at work..


dick

AK_Au_diver
17:05:22 Sat
May 19 2012
Re: 10" in 13 days

Propane bottles? To float a hose? That would be a dangerous and difficult mess.

For 10" dredges, and some 8" ones, people use buoys, the large ones orange ones that have the blue tie point on one end. They tie two or three of those along the hose, cut out a large hole near the blue part. The diver uses their air to add buoyancy as needed, or squeeze the float to let out air as needed.

Jim_Alaska
20:12:07 Sat
May 19 2012
Re: 10" in 13 days
Used inner tubes are cheap, light, and can be deflated and packed around easily.

Darkstar_Mining
07:32:26 Sun
Oct 14 2012
Re: 10" in 13 days
ALL i CAN SAY IS MY EX WIFE FU**ED MY WHOLE PLAN TO BE ON THE ARGO THIS YEAR... NOW YOU STEVE HAVE CHASED THE BEST POST IN THIS WHOLE FORUM OFF..YOU SIR SUCK...KEVIN...IM TRYING AGAIN FOR NEXT FALL..GONNA BE THERE IN 2014 SPRING..KEVIN IF YOU BY CHANCE SEE THIS.. I AM Live Laugh Love on facebook...hit me up...gonna start all over and build exactly what I want this time...shes a bitch...women



10" in 13 days
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