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Duct Construction and Uses
Discussion in fabricating and use of products that move air including spiral pipe, duct board and typical sheet metal work.
       


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  #1  
Old 05-13-2007, 11:26 PM
sheetmental sheetmental is offline
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Default twist fitting

a 30 degree twist fitting, 1 corner straight, tdc. i think it looks kinda interesting. it took me a little while to figure out how to bend it though.



whadda you think? neat huh? i had to make 4 of them for a job i was on last year. i came across the pic and decided to share
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  #2  
Old 05-14-2007, 02:52 AM
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Thanks! Yes these will get your thinking twisted...
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Old 05-14-2007, 05:48 AM
Stickman Stickman is offline
 
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Very nice fitting.....I am not a air balancer, but this looks like it would play havoc on your air flow ? I can see where bending time is the real thinking time here
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Old 05-14-2007, 10:39 AM
pricer pricer is offline
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Nice job, I know what you mean about the bending part, it can be tricky.
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Old 05-14-2007, 10:09 PM
AmickRacing AmickRacing is offline
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Well..... I woulda made it radiused! LMAO

Sweet looking fitting. I made one that was a 1/4 twist once, thankfully it didn't have to be perfect and would be hidden, it didn't turn out half that nice.
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Old 05-14-2007, 11:15 PM
scootluc scootluc is offline
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Pretty cool. How did you lay it out? I've made one before for a grease duct job. I believe I used a triangulaton method similar to that of a square to round.
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Old 05-15-2007, 04:02 AM
LeadHead LeadHead is offline
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It looks like a fun one to build because it's not center twisted. It appears that the upper left corner is in line...I'll think about that one on my way to work this morning.
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Old 05-16-2007, 05:49 AM
marky marky is offline
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This piece is like the problems my old journeyman used to set me ,he would come in on the Monday and say things like ,can you develop a cone? i would answer yes and he would then produce some obscure sketch and tell me to develop the pattern on template paper ,Iowe this man and many more through the years a big thanks for a love and passion for sheetmetal work and pattern development that has never faded with time . Yours with a lump in his throat Marky
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Old 05-24-2007, 09:07 PM
jw05450 jw05450 is offline
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neat fitting you dont see them everyday on the job site
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Old 04-02-2008, 10:13 PM
fogcrawler fogcrawler is offline
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We went over this fitting in class tonight...
You got it right, I see two valleys there...
BTW- My Instructor, who just happens to be one of my supervisors at work, not to mention a lifelong friend, informed the entire class about this website tonight.
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