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 Post subject: Re: Need Help With Tank Calculation
PostPosted: Wed Apr 04, 2018 5:04 pm 
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First thing that comes into my mind is laser engraving.
How about asking the tube cutting guys if they can engrave, too?

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 Post subject: Re: Need Help With Tank Calculation
PostPosted: Wed Apr 04, 2018 5:24 pm 
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Started eyeballing titanium sheet. Will need 2.

Not sure the exact size I need yet, but I think 8.125 inches square is enough. The thickness should be around .205 inches (or more). Then, the design could be about .125 inches deep, and still have a couple of mm of thickness left over.

Before I buy the titanium sheet, I need to make sure the designs can be transferred to a CAD drawing and CNC cut into the plate.

Thanks, Martin. After I get the 2 CAD drawings done, I'll check with the laser cutting shop. Got a feeling it might be more expensive than CNC, but we'll find out. Whatever it takes to do a good job.

If everything works out, it should be quite a work of art! :mrgreen:


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 Post subject: Re: Need Help With Tank Calculation
PostPosted: Wed Apr 04, 2018 5:42 pm 
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 Post subject: Re: Need Help With Tank Calculation
PostPosted: Sat Apr 07, 2018 10:57 pm 
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 Post subject: Re: Need Help With Tank Calculation
PostPosted: Mon Apr 09, 2018 7:05 am 
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How about laser engraving the logos on Ti sheet and weld it to the ring of segments?
(or even better : engrave after welding?)

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 Post subject: Re: Need Help With Tank Calculation
PostPosted: Mon Apr 09, 2018 7:46 am 
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 Post subject: Re: Need Help With Tank Calculation
PostPosted: Mon Apr 23, 2018 9:21 pm 
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Worked on the drawings for the tank filler and cap.

Problem was the cap. Threads inside and design cut into the outside. Pretty much impossible for my local machine shop. So, I changed the design to make it easier to fabricate.

Now, on the filler neck, threads inside and smooth outside, no design. Cap is now like a bolt with threads outside. Will make a sleeve to slip over the filler neck and be held on by the cap.

If the machine shop can't cut the design into the sleeve, the Laser cutting company can.

Waiting on the machine shop to get back to me. The bottom of the titanium filler neck needs a 1.5 inch radius, to sit flush on the 3 inch tubing. Also needs a counterbore (internal thickness reduction at the bottom), to make welding easier. Machinist needs to figure out if he can do that. I'll bet if I send the threaded filler to the Laser company, they could cut the radius. Still need to ask about laser cuttting the filler hole, too.

Whatever it takes. Should know more soon.


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 Post subject: Re: Need Help With Tank Calculation
PostPosted: Tue Aug 14, 2018 9:38 am 
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Laser cutting company told me to ship my tubing to their Sun Valley location and talk to Steve.

Sent the tubing and spoke to Steve. He knew nothing. Had to forward all my email to him so he can see what his company told me.

Not very confidence inspiring.

I'll just keep plugging away.


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 Post subject: Re: Need Help With Tank Calculation
PostPosted: Fri Aug 17, 2018 7:04 pm 
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Laser company said they need to send a formal quote to my company before proceeding. :mrgreen:

Yesterday, the quote comes by e-mail. No mention of the holes or indexing.

Also notice, it says 12 pieces. Surely, after all the e-mail, they know it's 16 pieces (so I have extra). Maybe they're writing it up like this to give me a break on the price. I okay the quote.

Today I'm sitting here and my heart stops for a second. There was already lack of communication on their part and I'm dealing with 2 people at different locations. I'll be fucked if I okayed the wrong info. I might have to pay another mimimum fee to get the rest done, and wait longer.

Got on the phone and got it straight. I hope. Dude did know exactly what I wanted. Just wasn't on the invoice. Evidently, I didn't need to call.

Need to work on more parts for this pronto.


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 Post subject: Re: Need Help With Tank Calculation
PostPosted: Sat Aug 18, 2018 4:24 pm 
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Hopefully, I can draw the filler neck and have it machined at my local machine shop. Working on that.

Want to make 2 titanium plaques, one for each side. Will need help with these.

This is the "Man in the Maze" design. I think the first step is to scan the design to CAD. Then, I want to add a couple more rings around the outside. To match with my tattoo design. (Photo coming soon.)



Once I get the CAD drawing done, I'll figure out who can machine it out of titanium. Laser or CNC or ?

Need to find someone who can scan the design to CAD. Not looking for freebies, happy to pay whoever can do it.


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 Post subject: Re: Need Help With Tank Calculation
PostPosted: Sat Aug 18, 2018 8:30 pm 
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Back to where I was before. :mrgreen:

On the plaque construction, looking at a single 5mm 6Al4V plate with the design carved into it 3mm deep. Not sure cnc could cut out the details on the "Man". Might need laser. Hope laser can do it.

Would be cool if the floor of the 3mm deep cutout could be DLC coated black, but not the sides of the cutout. I doubt it's possible, though.

One way would to be to cut out the design straight through a 3mm plate and attach it to a solid 2mm plate. The 2mm plate could be DLC coated. Could make the 3mm plate a cap, out of 5mm plate- so the DLC plate could be inset from the back. Eliminates welding around the circumfrence. Problem is, when the cap is welded to the urn, it will mess up the DLC coating.

And there's a design issue. If I cut the design all the way through any plate, the "Man" in the design has to be negative, cut out like a keyhole. I want the "Man" to be positive, if possible.


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 Post subject: Re: Need Help With Tank Calculation
PostPosted: Mon Aug 20, 2018 2:20 pm 
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Have the hole thing machined out of one piece of stock. Paint it. Then have the paint machined off of the sides. Not cheap but feasible.


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 Post subject: Re: Need Help With Tank Calculation
PostPosted: Mon Aug 20, 2018 2:59 pm 
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 Post subject: Re: Need Help With Tank Calculation
PostPosted: Tue Aug 21, 2018 2:22 pm 
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I'm saying the paint could be machined off of the inside walls of the design.


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 Post subject: Re: Need Help With Tank Calculation
PostPosted: Tue Aug 21, 2018 3:13 pm 
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