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Scuba Forum / General / June 2006SPAM: Backplates for sale
We just finished a run and I have a couple extra's to offer at the bro discount for my friends on rec.scuba. Regular size only, 1/8" 316L. We had a friend with a CNC router run a chamfer tool on all the edes, holes and slots, so the edges are gorgeous, and not a chance of ever cutting anything. Ping me off line if you want one. "Scott" <pugetsounddiver@gmail.com> sputtered: > Ping me off line if you want one. Drop it off at the Peace Arch. > We just finished a run and I have a couple extra's to offer at the bro > discount for my friends on rec.scuba. [quoted text clipped - 6 lines] > > Ping me off line if you want one. I'm still waiting for the brass backplates  Signature“TANSTAAFL” ____________________________________________________________________________ "A prudent man foresees the difficulties ahead and prepares for them; The simpleton goes blindly on and suffers the consequences." - Proverbs 22:3 “The strength of the pack is the wolf” Rudyard Kipling > > We just finished a run and I have a couple extra's to offer at the bro > > discount for my friends on rec.scuba. [quoted text clipped - 8 lines] > > > I'm still waiting for the brass backplates If you are serious, you are going to have to be ready to drop $250 or so. > If you are serious, you are going to have to be ready to drop $250 or so. I had been under the impression that brass / bronze was cheaper than stainless steel... Of course, it's definitely a hell of a lot easier to machine... Checking at www.onlinemetals.com, I find the following: Full sheets of the material is 36"x48"... Assuming approximately 0.125 thickness needed... Stainless 316 (4.9594 lbs/sq-ft) is approx $29 / sq-ft Brass (5.554 lbs/sq-ft) is approx $47.73 / sq-ft Copper (5.796 lbs/sq-ft) is approx $82.58 / sq-ft Aluminum 6061 T6 (1.764 lbs/sq-ft) is approx $9.58 / sq-ft Titanium (2.934 lbs/sq-ft) is approx $198 / sq-ft Mild Steel (5.094 lbs/sq-ft) is approx $5.92 / sq-ft Prices from a local supplier should be considerably cheaper than through this web site though... Of course, if you're going to have a brass backplate, you *must* have the rest of your hardware brass, right? Hell, you could even machine yourself out a few weights out of 1.5"x3" solid rectangle stock (16.578 lbs / linear foot) for the ultimate "pimp my dive gear" configuration... <grin> Kind of expensive at $123.30 / linear foot though... Hmmm... That works out to $7.43 / lb... Damn... Sounds about like what some of the local dive shops like to charge for weights... Still, you gotta have at least brass D-rings and keepers... They can probably be cut out of the same brass sheet that the backplate was being cut of out so as to waste as little metal as possible... > > If you are serious, you are going to have to be ready to drop $250 or so. > [quoted text clipped - 12 lines] > Aluminum 6061 T6 (1.764 lbs/sq-ft) is approx $9.58 / sq-ft > Titanium (2.934 lbs/sq-ft) is approx $198 / sq-ft Hmmm, for about $500, I could have the ultimate travel plate :-) > Prices from a local supplier should be considerably cheaper than > through this web site though... [quoted text clipped - 10 lines] > probably be cut out of the same brass sheet that the backplate was > being cut of out so as to waste as little metal as possible... > Hmmm, for about $500, I could have the ultimate travel plate :-) Material alone would be around $300, at that price. Sometimes you can luck out at Boeing surplus, but you would have to be there very day. http://www.boeing.com/assocproducts/surplus/so_cal/locations.html Also, because of the higher strength of titanium (try to get a piece of 6AL4V), and since you arent worried about weight or trim, you wouldnt need anywhere near a 1/8" plate, you could do very well with a piece of .06" plate. > > If you are serious, you are going to have to be ready to drop $250 or so. > I had been under the impression that brass / bronze was cheaper than > stainless steel... Of course, it's definitely a hell of a lot easier to > machine... > Checking at www.onlinemetals.com, I find the following: > > Full sheets of the material is 36"x48"... > Assuming approximately 0.125 thickness needed... > Stainless 316 (4.9594 lbs/sq-ft) is approx $29 / sq-ft > Brass (5.554 lbs/sq-ft) is approx $47.73 / sq-ft > Copper (5.796 lbs/sq-ft) is approx $82.58 / sq-ft > Aluminum 6061 T6 (1.764 lbs/sq-ft) is approx $9.58 / sq-ft > Titanium (2.934 lbs/sq-ft) is approx $198 / sq-ft > Mild Steel (5.094 lbs/sq-ft) is approx $5.92 / sq-ft > Prices from a local supplier should be considerably cheaper than > through this web site though... A piece of 1/8" thick Naval brass (C46400) plate big enough to make a backplate out of would cost about $135 per plate, not including shipping. In order to get anywhere near a decent price on the material, you have to buy a whole sheet. While it is easier to machine (a better term would be "different") than stainless, it is far from easy, and is very abrasive. Brass drings are readily available. > If you are serious, you are going to have to be ready to drop $250 or so. How about 1/8" aluminum diamond plate? $11.36 / sq-ft at www.onlinemetals.com, so it's probably pretty cheap from a normal metal supplier... I can see it appealing to a certain market segment... Perhaps the redneck tek divers in the Florida Panhandle? http://www.onlinemetals.com/merchant.cfm?pid=1254&step=4 > > If you are serious, you are going to have to be ready to drop $250 or so. > How about 1/8" aluminum diamond plate? $11.36 / sq-ft at > www.onlinemetals.com, so it's probably pretty cheap from a normal metal > supplier... I can see it appealing to a certain market segment... > Perhaps the redneck tek divers in the Florida Panhandle? > > http://www.onlinemetals.com/merchant.cfm?pid=1254&step=4 How about not. > How about not. Awh, come on... Where's you're sense of humor / adventure? It seems that there is a certain segment of the truck and Jeep owners who want the diamond plate added to certain parts of their vehicles... You see it in the truck bed tool boxes, tailgate protectors, and rail guards... It only follows that they would also want their backplate in the same thing, right? It would be a niche market, but I would not be surprised if some guys wouldn't buy one even though they might already have an aluminum plate... The market might not be such that you would have people buying it instead of a regular plate, but you might get some people to buy it as an additional plate even though they really don't need an additional plate.. Cost wise, it should cost about the same since the prices for the whole sheets are nearly the same... $136.33 for a 36"x48" sheet of 0.125" diamond plate $115.00 for a 36"x48" sheet of 0.125" regular aluminum sheet I don't have a ruler handy, so I can't measure your plate right now... Best I remember, it's around 16" long, right? What was the width of the blank before the bends? Rough guess is that a 36"x48" sheet should be able to produce at least 6 plates... Thus, a material cost of $22.72 for the diamond plate vs $19.17 for the regular aluminum sheet.. An extra $3.55 per backplate in material costs... I suspect that the labor costs for the rest of it would remain the same... The only concern might be the alloy since it's 3003-H32 instead of 6061-T6... If a company was mass producing the plates, they would be considerably cheaper... They could be stamped out instead of being milled... Since a backplate lasts nearly forever, I seriously doubt that the market is there for that sort of thing... Hey, here's an idea... How about anodized aluminum diamond plate? All you would need is to rig up some LED edge lights around the tank like some of these kids put on their coffee can muffler rice-cars these days... <snicker> > > How about not. > > Awh, come on... Where's you're sense of humor / adventure? It seems > that there is a certain segment of the truck and Jeep owners who want > the diamond plate added to certain parts of their vehicles... You see > it in the truck bed tool boxes, tailgate protectors, and rail guards... On fire engines, we used it to hide "scabs". I've seen a backplate made from diamond brite, but I don't remember who had it. >From what I remember from building firetrucks, it bent ok on the brake with a decent radius toolset, but it didn't do well on the Fasti folder. > > How about not. > > Awh, come on... Where's you're sense of humor / adventure? I have plenty of things to waste time and money on as it is. > I don't have a ruler handy, so I can't measure your plate right now... > Best I remember, it's around 16" long, right? What was the width of [quoted text clipped - 4 lines] > costs for the rest of it would remain the same... The only concern > might be the alloy since it's 3003-H32 instead of 6061-T6... Go right ahead, I'll send you the CAD files. It would have to be 5053 or 3003, 6061 T6 doesnt bend worth a damn at those tight radii, it splits. > Go right ahead, I'll send you the CAD files. Awh, 'ell, I might just do it if you'll send the CAD files... How do you normally cut the plates out with? Abrasive water jet, some type of milling machine, or some sort of heat based method? > > Go right ahead, I'll send you the CAD files. > > Awh, 'ell, I might just do it if you'll send the CAD files... > > How do you normally cut the plates out with? Abrasive water jet, some > type of milling machine, or some sort of heat based method? Depends upon the material and thickness. Sometimes laser, some times water jet, some times milling machine and CNC router. > Depends upon the material and thickness. > > Sometimes laser, some times water jet, some times milling machine and CNC > router. Does the water jet method allow you completely finished edges so that you don't have to smooth them down? I need to replace the rubber door ding protectors on my Jeep... The right side loosened enough that I ripped them off and I'll probably do the same with the left side... I was thinking of having some 1/8" aluminum diamond plate cut in the same shape and glued there as a replacement... While I'm at it, I might just get a diamond plate backplate cut out if you send me the CAD files... That ought to be a hoot the next time I'm diving the springs in the Florida Panhandle... Of course, I'll send 'em your way if any of the redneck tek divers want one... Of course, if there was a way to cut the Stars & Bars into the backplate, it would definitely be more popular around there... Quite a different culture up there as compared to South Florida... Might be because South Florida is mostly just inhabited by people from somewhere else whereas only the natives live in the Panhandle... Or people displaced by whatever the current hurricane might be... <grin> <snip> > While I'm at it, I might just get a diamond plate > backplate cut out if you send me the CAD files... That ought to be a > hoot the next time I'm diving the springs in the Florida Panhandle... > Of course, I'll send 'em your way if any of the redneck tek divers want > one... Of course, if there was a way to cut the Stars & Bars into the > backplate, it would definitely be more popular around there... Why not just paint it on? > Why not just paint it on? Anyone could put a decal on or have it painted... Having it cut into it would be considerably more impressive... The stars would probably be cut all the way through, the blue stripes would still be left as metal, the white borders seperating the blue stripes from the red background would need to be cut, but there would need to be intermitant pieces left in so that the whole thing didn't just fall apart... The red background would also be left as solid metal... Considering the fact that I've seen teenage girls in Bars & Stars bikinis at some of the springs in the Florida Panhandle, I suspect it would go over well there... Of course, pictures like this definitely swell one with southern pride... http://www.bikini-beach.com/bikini_joes-rebel-flag-full-bottom-bikini-l.jpg <snip> > Of course, pictures like this definitely swell one with southern > pride... http://www.bikini-beach.com/bikini_joes-rebel-flag-full-bottom-bikini-l.jpg I'll take three... of the bikinis... for my wife. Yeah, that's it. I am just slammed right now. 130 hours of OT in the last 30 days. Let me whip this dog, and I'll get with you on the hobby sh.t. > > Depends upon the material and thickness. > > [quoted text clipped - 18 lines] > else whereas only the natives live in the Panhandle... Or people > displaced by whatever the current hurricane might be... <grin> >I am just slammed right now. > > 130 hours of OT in the last 30 days. > > Let me whip this dog, and I'll get with you on the hobby sh.t. Who do I gotta sleep with for some of those 3/8ths back plates? How many do you need to make a run? What do they retail for? <weg> SignaturePopeye "If one does as God does enough times, one will become as God is." -Dr. Hannibal Lector. www.finalprotectivefire.com > >I am just slammed right now. > > [quoted text clipped - 7 lines] > > What do they retail for? <weg> You can sleep with whomever you want, Bro. They are 1/4", weight ten pounds, but for you I would make a custom just to fit. Normally, I get 28 plates out of a 4 x 10 sheet, but the price of a sheet has doubled since my last run. email me or call |
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