Triangulation - Drop Cheek Elbow, fabrication

Рет қаралды 36,917

Duane Maillet

3 жыл бұрын

#ductwork #hvac #sheetmetal #ventilation #triangulation

Пікірлер: 45

@jamesedwards5931 3 жыл бұрын

It’s a pleasure to watch a real Sheetmetal man and a very good teacher. I just found your videos today. This is the third one I’ve checked out. Glad to see you have more, hope to watch them all. Thank you.

@sheetmetalwork 3 жыл бұрын

Thanks James, comments like yours do encourage me to make a few more :)

@Faceripper4000 2 жыл бұрын

Thanks for the video. Haven’t made one of those in quite a while and this was a great reminder of how to do it. Cheers!!

@sheetmetalwork 2 жыл бұрын

Your welcome Dan.

@jermsash424 2 жыл бұрын

This was so much better than using a book from the 70s. Thank you.

@sheetmetalwork 2 жыл бұрын

Don’t lose that book from the 70s, the theory and methods haven’t changed much. 😀

@vnesmuonnam 2 жыл бұрын

Thank you for taking you time to show us.

@sheetmetalwork 2 жыл бұрын

Im happy to hear that Minh, Im hoping to do more.

@harrygilbert4593 Жыл бұрын

A true tin knocker. What you don’t want to be the magic marker mechanic? Punch and scribe is all I know. Nice work and I’m glad I found your channel.

@sheetmetalwork Жыл бұрын

Thanks Harry. By the sound of your comment, I’m pretty sure your work is nice and neat.

@harrygilbert4593 Жыл бұрын

@@sheetmetalwork I use red pencil to mark holes on spiral

@anthonylosego Жыл бұрын

It's my first time doing any sheet metal work, I have to transition an 8x20 base box opening to an 8x24 return feed as a vertical 90 yet FOB (bottom being the right side in this case). I have only a folding tool and a hand former. So I am trying to get my Pitts to go by hand. Should be a lot of fun! This video will be instrumental in my design calculations.

@sheetmetalwork Жыл бұрын

Well it looks like you got your work cut out for you for your first time doing any sheet-metal. But by the sounds of it you seem to have the dimensions, names and acronyms correct. Good luck you have nothing to lose except perhaps $20 worth of galvanize. 👍😀

@jamesedwards5931 3 жыл бұрын

I have watched 43 of your videos and compiled them all in Notes on my iPad and iPhone. They are all excellent! Also have shared them with other potential Sheetmetal layout men. Your lesson of a drop cheek elbow is great. Will you be doing one on a transition elbow with slant throat? Like in Kaberlein - Triangulation Short Cut Layouts- plate 51. Since 1969, I have fabricated both types of elbows, but 100 more of as we call them “rising throat reverse elbows.”

@sheetmetalwork 3 жыл бұрын

Thanks for your comment James:) One of these days I just might find the time to demo the elbow in question. I really appreciate your comments. Duane

@davidmarshall9160 6 ай бұрын

Wel done, i use the peewe tape for radius lengths too., Very few folks know trommel pionts, triangulation ,and all the good formulas for layout by hand Anymore...👍

@sheetmetalwork 6 ай бұрын

Thanks,,,,,,,Peewee tape doesn’t lie :)

@DrewCauthen Ай бұрын

Just multiply the whatever the radius is by 1.57 and you'll get a perfect answer in one second

@enriquegudino6990 Жыл бұрын

good job

@sheetmetalwork Жыл бұрын

Thank you Enrique.

@danbenacquisto4390 3 ай бұрын

The alowance for pgh seam is 15/16" not 1"

@sheetmetalwork 3 ай бұрын

No it’s probably more like 31/32” I’m happy to hear that you paying very close attention to details.

@qeesher 2 жыл бұрын

Hi. Great videos. Thank you. I just recently found them. 1. Why wouldn't you add hashtags for your videos like #sheetmetal #ductwork #hvac so that others could find them easier? 2. There is 3 day sheetmetal fabrication workshops in US. Don't you have the similar here in Canada? Thanks

@sheetmetalwork 2 жыл бұрын

Thanks hvacker, This stuff is all new to me and I’m not quite sure on how the Hashtag works. But I will look into it, Thanks!!!

@boneyetephlon3442 2 ай бұрын

Sir,try to do the work somewhere visible..I cant seem to see the lines with my bare eyes...

@sheetmetalwork 2 ай бұрын

I will somehow try to make it clearer next time.

@boneyetephlon3442 2 ай бұрын

@@sheetmetalwork Thank you sir.

@bradleycornwall2612 2 жыл бұрын

Great video, is it the same process for a drop cheek reducing on both cheeks?

@sheetmetalwork 2 жыл бұрын

Yes Bradley, it is. The amount of drop may be different for both cheeks, depending on the drop of the top cheek and the width or depth of the duct. Great question! 👍

@bcornwall2785 2 жыл бұрын

I see, so how do you find the length of the throat and heel, as you don’t have a flat cheek to measure around?

@sheetmetalwork 2 жыл бұрын

The lengths will comes from the cheek working view, which is the same as a flat cheek. Do you have any SM textbooks on hand? If so which one?

@bcornwall2785 2 жыл бұрын

Yes I have a few Kaberlein books but they are sometimes quite confusing to follow. It’s a lot easier to follow along with your videos 👍

@BradleyLye-Lee 4 ай бұрын

What is that block you are using when forming the fitting when just racking the Pittsburgh down

@sheetmetalwork 4 ай бұрын

Solid flat bar 1” x 1/2” x aprox 6” long

@ethanpedeglorio5201 2 жыл бұрын

Or use pa pentel pen to draw a line

@punitgnjunan4166 3 жыл бұрын

75 chanal ki description sokar kaise

@Oxatolla 2 жыл бұрын

Thanks. I have subscribed. Can you recommend a good trade school? I am Canadian.

@sheetmetalwork 2 жыл бұрын

Great question! I’m in NB and we only have one training facility in this province, PEI comes to NB for their training. Rest assure, most provinces offer this trade. Pretty much all trade schools that teach Sheet Metal in Canada are going to follow the guidelines from the National SM curriculum/ course content and will be good. The reason being, it’s an apprenticeship trade and after completing the required hours which is approximately 7200 hours, you will be eligible to write the SM Red Seal Exam, and finally become a Journeyman/Journeyperson.

@sheetmetalwork 2 жыл бұрын

BTW, thanks for subscribing and I hope the info helps you along the way. Do not hesitate to ask if you have questions,

@Oxatolla 10 ай бұрын

@@sheetmetalwork Thank you Duane, only seeing this reply now! I am about to layout and fabricate a 14x12 to 16x8" drop cheek 90 with a fish lock on the 14x12" side. This tutorial has been so helpful!

@user-eh9zh9ox3m Жыл бұрын

But how do you know at what angle to bend on the side of the knee?

@sheetmetalwork Жыл бұрын

Im sorry but there is no knee mentioned in this video 🦵🏻. If so, what minute and second?

@Bro-oc9xk 4 ай бұрын

Ido! Question... In finding the throat radius and heel radius where did you get the lenght setting of your compass. Thanks

@ethanpedeglorio5201 2 жыл бұрын

Next time please use paper the line didn't see

@sheetmetalwork 2 жыл бұрын

I agree with you👍 the scribed lines are very hard to see 🙈that’s why I have been using markers on my last videos. I guess I’m still trying to see what works best for video tutorials or more importantly make it easier to understand. I promise to try and make it clearer next time👍