Fabricate an offset with two elbows

[@Yjdjdjfjfjc]

Buenas tardes amigo, soy de Guanajuato, México, tengo un pequeño negocio de aislamiento térmico, estoy en proceso de capacitación, veo tus videos por qué están muy completos en la información, además son muy motivantes por la forma en la que haces las cosas, gracias.

[@sinironheart8413]

Brilliant explanation! Much appreciated!🙏🏿

[@sheetmetalwork]

@@sinironheart8413 thank you!

[@bgd3239]

Great way of teaching, appreciate it a lot!

[@fredyventura3123]

Great job , master!

[@sheetmetalwork]

Thanks Fredy,

[@SardarTariqMahmood]

،Thanks

[@PaNaMaMa1981]

What's up with the OWL method? I am a first year apprentice so I am not going to act like I am some experienced pro, but an old head at the shop showed me this method and it (majorly) simplified things for me. I was so grateful.

[@sheetmetalwork]

I think your looking at the wrong video regarding OWL, This video explains how to fabricate an offset using to elbows………..The OWL method is the allowance you must remove from both ends of a straight piece of duct to CREATE a MITRED OFFSET. But don’t forget this is simply one way to accomplish the mitred duct and that there are others ways also. If your really interested in learning how to fabricate a field mitred or so called slashed duct? Check out my video on how to fabricate a field mitred duct. The important thing here is that you must try and pick up tips and tricks from many Journeymen along the way :)

[@Tinman1479]

And what happens when you have a fixed offset amount and a fixed overall length? How do you find the degree of the elbows?

[@noahoyeah]

Amazing

[@sheetmetalwork]

Thank you Noah.

[@sergioflores913]

Fácil, nada del otro mundo!!

[@huntersf7704]

Ack! what's the book?

[@sheetmetalwork]

book by Joseph J. Kaberlein called Triangulation Short-Cut Layouts page 267.

[@thepurposeofmyexistence2511]

nice video

[@sheetmetalwork]

Thank you very much.

[@samueldiaz8024]

What is name of book

[@AntEng95]

Nice

[@sheetmetalwork]

Thanks👍🏻

[@Nostalgic709]

Did you add your 2" allowances for slips after?

[@sheetmetalwork]

Hi Jay, That’s a good question, in reality on a job site adding an extra 1 inch or 2 inches would not make much difference, but to answer your question if you look back at the video I have been working from my Finishline therefore I would only add 1 inch total if I was working from the 1 inch line or the working line, then I would be adding 2 inches.

[@armandoguerra8448]

Is it all the same for let’s say a square elbow 60° with a 6/10 throat.

[@sheetmetalwork]

@@armandoguerra8448 all 60s, yes it would, the longer the throat, the shorter the in between duct will be.

[@armandoguerra8448]

Nice these are good examples. Can you do it with just math using a calculator.

[@sheetmetalwork]

@@armandoguerra8448 yes, instead of drawing a physical line straight up the centre of the cheek, you can use trigonometry to figure out the centreline length.

[@juanlopezhenriquez8990]

From what book did you get that paper.

[@sheetmetalwork]

Hello Juan, sorry for my late reply but the book is by Joseph J. Kaberlein, the title is Triangulation (Short-cut Methods)

[@awaisahmed7380]

Very useful video 👍 thanks for share😊 Please tell use how to check elbow degree 45° 30° and 60° please. I m waiting for your reply thanks.

[@sheetmetalwork]

I’m not sure what you mean by how to check elbow degree, sorry.

[@mikerivsrivs9591]

Would this lay out method apply to round elbows as well? Thankyou for the video.

[@sheetmetalwork]

Yes it does, The only difference is with round elbows you will have to add an inch and a half for overlap on both elbows, therefore you would do the math and add 3 inches to the net length of the in between pipe.

[@mikerivsrivs9591]

Oh ok thankyou that makes sense. Your videos help out a lot as an apprentice just starting out thanks again.

[@-slurmdaddy-8147]

Couldn't you measure off the wall and use a laser to go around obstacle high up?

[@sheetmetalwork]

Yes you definitely couldThere are many different ways to measure, as there is for most anything else we do in the trade. I believe it;s best to pick up tips and tricks from all the different co-workers and then choose the ones you prefer.

[@-slurmdaddy-8147]

@@sheetmetalwork yea I’m starting to pick things up from other workers. I just started hvac few months ago! But I’ll be tuned on on your channel for more insight. Thanks a ton you rock!

[@sheetmetalwork]

@@-slurmdaddy-8147 Thank you!

[@omozusibenji]

Would this method work the same way with round 45s trying to go up and down obstacles

[@sheetmetalwork]

Oh Yes it does, just make sure to add for The overlap on the Big Ends.

[@omozusibenji]

@@sheetmetalwork thank you

[@omozusibenji]

@@sheetmetalwork 1 more question I’m a helper trying to get better, how would you find an elevation to run ur duct or taps if one isn’t giving on the print

[@sheetmetalwork]

@@omozusibenji That’s a difficult one to answer. Is it residential? Commercial? What type of ceiling? Just make sure to run your ideas by your supervisor before doing a whole lot of work for nothing ☹️

[@omozusibenji]

@@sheetmetalwork Tenet work ,9 3” Ceiling hanging 10*10 duct, I understand when no elevation is giving you pick one or run high as you can but do you have to calculate the depth of the duct When you pick an elevation or just pick that Elevation

[@LIBERTY0RDEATH]

Always heard it pronounced oh-gee offset

[@sheetmetalwork]

Your right, Ive heard it pronounced that way many times also. Thanks for the comment. 👍

[@PaNaMaMa1981]

That's how we say it in our shop

[@dineshbhoibhoi583]

Sir I am duct fitter you have vacancy

[@zeeshanalimehar6633]

Hi sir me AC DUCt mem jobs