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The custom fabrication thread! (Post pics of stuff you have made)

Old 08-04-2018, 03:49 PM
  #1181  
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I think the tool marks on anodized surfaces still look good. Even dye ano black which usually hides a lot. Tool marks on HC look good too.



Eh this is a bad example. The camera can't handle the fine details.
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Old 08-04-2018, 11:57 PM
  #1182  
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One thing I've learned from Emachineshop is the finishing processes are ridiculously priced. The finish is baked into the total cost, so you don't actually know how much it costs. I've found it to be 30-50% of the total cost for anodizing or powdercoating.
I had them waterjet and cnc bend my seat mounts and it was $180 for one seat (two brackets) unfinished OR about $350 with black powdercoat. No thanks, I can drop those off locally for easily <$40. $180 is quite reasonable for custom mounts, when off the shelf stuff is easily $100.
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Old 08-05-2018, 09:11 AM
  #1183  
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Anodizing is a huge process. So it makes sense for it to be expensive for one part. Especially If it requires custom racking .

For example our process tank time is about $600 an hour. Parts generally run for 45 - 60 minutes. Pair this with a ton of other factors that easily drive the cost up and you have your answer.

We are a high volume automated facility though. I'm unsure what our smaller devisions with hand run lines would charge. (We're doing $5k+ loads at a time)
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Old 08-05-2018, 01:37 PM
  #1184  
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Had to build an alternate set of downpipes and exhaust for Hyper to pass Laguna Seca's sound limits. 100% stainless nose to tail, great opportunity for a lot of practice on the TIG. Mostly made up of 304 welded with 308L, muffler is 400 series and welded with 309L filler, ran a backpurge on everything. There were just a few details that threw me some curve ***** - a couple spots welding hanger rod to the muffler case that just refused to weld right, had to experiment a ton with cleaning, filler, tungsten tip shape, etc. to struggle through there, but overall really pleased with how it all turned out. Going to experiment with some titanium soon (they say Ti is like SS but everything has to be perfect, particularly shielding gas and purge).





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Old 09-17-2018, 11:59 PM
  #1185  
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Few things are as exciting as holding a big piece of raw metal stock just waiting to be machined.

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Old 09-18-2018, 12:38 PM
  #1186  
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I made dis! Land Rovers wooden box that someone made for the back looked really neat, but design wise it had less than 3" of space in the middle... new one has about triple that depth wise and is stout.

Square steel tubing, galvanized trim panel (matches galvanized all over truck), mahogany wood table top that is on its own hinge to keep the front/back locked door separate and a top door for access if back bed is fully loaded.
Attached Thumbnails The custom fabrication thread! (Post pics of stuff you have made)-img_20180828_135603.jpg   The custom fabrication thread! (Post pics of stuff you have made)-img_20180908_142522.jpg   The custom fabrication thread! (Post pics of stuff you have made)-img_20180908_142541.jpg   The custom fabrication thread! (Post pics of stuff you have made)-img_20180908_142553.jpg  
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Old 10-06-2018, 01:10 PM
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So I am building a manifold right now and expect to mount the turbine inlet right over cylinder two. How would the brain trust build this manifold given the option?

1.



2.

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Old 10-06-2018, 02:03 PM
  #1188  
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I would weld it.








really tho I'm not sure what you're asking? cut a hole in it and weld the flange on, or add a short piece of pipe if you want it to stick out. Flange right on the els is usually best. The even sell them with the backside radiused for this.
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Old 10-06-2018, 02:12 PM
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Yes the t2 flange i have is radiused to the pipe. The question was weather it would be a better idea, flow wise, to use two tees or three 90's, and if the effort would be worth it.
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Old 10-06-2018, 03:03 PM
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I would do the 2 tees for simplicity alone. I cant see there even being a noticeable difference.
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Old 10-06-2018, 04:34 PM
  #1191  
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Use the 2 tees in the middle.
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Old 10-06-2018, 08:12 PM
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Use the 2 tees. There wont be a difference.
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Old 10-06-2018, 08:27 PM
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I did a mixture of both. lol. Flow 45* and straights to make tees.
Turbo sat forward at #2 cylinder exhaust port.

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Old 10-07-2018, 12:25 AM
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That'll work. Once its welded of course...


Last edited by Oh4One4; 10-07-2018 at 12:46 AM.
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