Pattern Making for Sheet Metal- Offset Transition

[@johndublyoo9360]

As an apprentice in the early sixties I was convinced that no machine could take pattern development skills away from the tradesman. How wrong I was, computer software programmes allied to CNC punch presses or lasers can knock out the piece full size in a fraction of the time it used to take me all those years ago, although at 71yrs, I'm still capable of doing it. Old metalworkers never die, they only lose their tools.

[@assabetmetalfabrication6143]

Excellent layout I am a vocational sheet metal worker teacher /welder/fabricator and these days all sheet metal fittings are cut out with plasma machines but it’s great to go back to a sheet metal worker grass roots of triangulation radial line development and parallel line development I still, teach this to the kids Thanks A life time of learning no mater how long you have been doing it Navy Seabee welder sheet metal worker

[@daveosland3199]

Thanks- I had to learn layout techniques years ago, but know it's fallen by the wayside for many in the trades...Dave

[@thomasanderson3785]

Thanks for the best demonstration I've done a couple things and I had to go by the book myself and not having someone to explain it to the book was frustrating now I can expand to more jobs and opening my options to more jobs

[@hangngoaigiare]

So great for you to share this. I’have been looking for these kind of videos for a while. Now i understand what the hell is triangulation is. I think if you put more of these in a videos and sell im the first one to buy it. Please do more patterns whenever you like. Thank you very much again sir.

[@brobdingnagianone900]

Subscribed! Thanks for making these pattern drafting videos. I was a sheet metal work in my younger days. I never have found a good book on pattern drafting. This is great!

[@JahidHasan-hm9yb]

This book name

[@jamescosta1174]

Love it, thank you. Old pipeliners lay it out tranfered ONTO the pipe itself, elimanating the paper trail, however great to see and now know how to ADD the wall thickness, duh!!! ,i ruined a lot prior to learning this!

[@valentinlishkov9540]

FREE sheet metal, gears, curves and others www.onlinecadtools.com/myindex_en.HTM www.onlinecadtools.com/english/html/sheet_metal/index.HTM www.onlinecadtools.com/english/html/index_gears.HTM www.onlinecadtools.com/english/html/index_curves.HTM www.onlinecadtools.com/english/html/index_st.HTM

[@bokswagon6387]

a very thankful for a clearly teaching on how to lay out the round fitting... thanks you sir

[@lakhdariboualem1550]

bonjour mr dave merci pour la video c'est tres instructif felicitation bon courage

[@joeyravage4798]

Omg. The most expensive fitting ever! I have done similar measurements but not on a round to round fitting. Salutations, Sir!

[@kingco-bruh7271]

this is very helpful to me as we'll be starting pattern development in our course

[@daveosland3199]

+Imrite Hurr Good luck on your studies! Dave

[@kingco-bruh7271]

cheers and thank you for making these tutorials

[@briandejesus4160]

awesome way to explain offset transition piece. thank you very much.

[@daveosland3199]

Hope it can be put to use! There are many custom applications where you can't buy a pre-made piece...Dave

[@danrobins4631]

Hey Dave. So is it possible to draw an offset truncated cone where the base is fitting on a pipe?

[@Yeska34]

Thank you. Great video.

[@ChrisBrown-qg4xo]

Will this also work for a sitting on a 5:12 pitch? In other words the bottom isn’t parallel with the top. I know you have a radial mapping for a truncated cone, but I am asking because this takes less paper!

[@jolitomad6905]

very nice.....and a very good teacher..

[@daveosland3199]

+jolito mad Well, thanks!!

[@narendranishad5994]

identical radusar seet matal

[@michaelrichardson8437]

Nice video Dave! I learned this way as well. There`s only a few fittings left in the HVAC field which computer driven plasma cutters can`t make. This is why I am needed and make a decent buck. You should do a video on a Parker fitting, I know they are not SMACNA standards, but they have their place in the field, usually it`s a lazy-ass field guy who won`t cut back the supply or return drop from the RTU and just add a change of direction with an elbow, other times there`s just no room.

[@nnadozieonukafor4434]

Thank you Mr Dave for your videos, but please do you have any videos on the fabrication of eccentric reducers using a piece of pipe or template

[@simonmoshi922]

Thank you Dave you been great help 👍🏻

[@oragonhvac5602]

Ive learn this video sir thank you for sharing your talent,

[@daveosland3199]

You're most welcome! Glad it was a help to you!

[@oragonhvac5602]

From which country you come from sir?can you pls visit my channel sir we are same content but i am new of this work..

[@mikaell.1784]

If I was to do an elleptical cone (top view being basically two ellipses), how could I lay out a pattern? I would have two different side views, one like a larger trapeze and the other narrower. Should I use triangulation?

[@hopesmith8994]

Dave love the layout videos would love to see your take on a rectangle to round fitting

[@kellygibson7299]

Great, great video my friend

[@pubgbot1194]

I realy apreciate your help you are good teacher on the triangulation i do industrial insulation and i works great for me thank big thums up....:)

[@baronweber6801]

What is the make of the compass you are using and how long is it ? Thank you.

[@mixedandcontrol2277]

Please upload about about offset related to sheetmetal job .

[@Yuti23]

thank for the videos sir..I have question....this steps also works for the eccentric reducer!

[@danieldavid1580]

very nice

[@londonchristian4768]

Nice video will comeback when beeded got square to rounds pipe miters pitched cones but this is alot

[@daveosland3199]

Another great resource for layout is "Sheetmetal" by Meyers- Dave

[@fikrukassahun7306]

Thank Too Our Dear!!!

[@ronaldodamot3673]

mr dave do you know lay out elbow reducer square...

[@sunilpratapsingh6300]

Sir,can you upload valves box,flange box fabrication and how to get measurement for its too

[@NOOne-im5vg]

This can be done using the radial line development technique

[@rogelioramos9437]

ok. Máster. Buena. Triangulacion. Saludos desde veracruz

[@tookalook1777]

So much Thanks to You for explaining it well Thank you!

[@junsmackalbos4565]

i liked to know square to round...thanks and more power to you

[@orlanmoreno7611]

hi dave , thank a lot f u could share a video of segmented elbow pattern development it will be great ,

[@gdrreddy7530]

Really nice video

[@keithlibby4701]

Could you possible do a eccentric lateral layout sir?

[@ManongErwelTV]

sir can you make a video on how to do boots elbow square to round?

[@TheAdrianjjohnson]

Called the take away method or centerline method

[@krabila]

Hi, Dave in your catalogue of patterns have you made a video on small take off shoe on a larger pipe such as 100 dia shoe on 300 dia pipe if you have can you direct me to it or can you do one please.

[@daveosland3199]

I'm not sure what exactly you have in mind.... You might look at this- kzbin.info/www/bejne/a36udKyheMSpa6M But this may not be what you're looking for. There are dozens of ways to saddle pipes together and at different angles.. All my videos are under " Dave Osland" - Thanks

[@ferminulit5360]

thank you. it worth to watch and learn.

[@vic.1703]

Nicely done. Thanks!

[@jamesthompson6673]

Awesome

[@thomasanderson3785]

Very good teacher I can understand very thoroughly done sir I'm excited again had some hard things happen and I lost my desire to keep my studies up and I'm excited because I have a good teacher to help explain things I didn't understand from book totally no one to tell me what book meant

[@kashem851]

vary very very good jobs

[@louiejoerosario242]

Good day sir.. can you make a video of how to lay out the concentric reducer... thanks..

[@danielkushla2383]

Lol

[@isaaccruz8024]

these are awesome do you have a video for making complex shapes like spheres or do you have a link... again awesome.

[@tonycarmen4034]

I appreciate your knowledge.iwant only as my reviewers.kindly add more pattern in rectangular air duct.

[@valentinlishkov9540]

FREE sheet metal, gears, curves and others www.onlinecadtools.com/myindex_en.HTM www.onlinecadtools.com/english/html/sheet_metal/index.HTM www.onlinecadtools.com/english/html/index_gears.HTM www.onlinecadtools.com/english/html/index_curves.HTM www.onlinecadtools.com/english/html/index_st.HTM

[@thamimbasha4140]

you are good teacher. thanks

[@Hassankhan-sg2ne]

sir one request cane u make a video for b-tupe center out cone

[@Illsky9]

can you lay out a square to round transition for us?

[@Illsky9]

that was really good

[@MrTim3990]

well done!

[@MrCelestiall]

Thank you so much. Appreciate it. God bless you .

[@noonce]

What are the courses at a college where you can learn these techniques? Thanks and great video!

[@davidosland1440]

Good question!! I taught these in a local CC in a sheet metal class. You'd have to enquire at your near by community college to see if anything like this is offered. The sheetmetal workers union may still teach layout, but I have a feeling that things are going to software programs these days....I refer to "Sheetmetal" by Leo Meyer, when i need to refresh my memory on different pattern making. Dave

[@David-pf8no]

I am a 'Structural Steel & Plate Fitter' in Canada, and part of our technical training for each term included a very in depth pattern development and layout class which taught us the techniques you used in this video plus some. I took that class a while ago and needed a refresher as I am going to be tasked sometime in the near future with forming a dozen 48" to 20" offsets over a 36" height out of 1/2" PL. Everything will be cut on our CNC plasma table but as with seemingly every complex part that we fabricate in our shop, the drafting department overlooks some critical information which sets things back. It almost seems like its routine now for that department to run detail drawings past me before they get the engineers approval stamp. It always makes my foreman smirk when the ego driven engineering techs have to come meet with me (a 22 year old apprentice) so they can issue accurate drawings. It just goes to show, if you can take the time to learn how to manually solve problems or do the work without the aid of technology your value will be seen. These younger techs making the drawings typically are really good with their software and making drawings but their lack of understanding of the fundamentals of metalworking hold them back from being great at what they do.. So I would like to thank you for taking the time to share your abundance of knowledge with the world, and giving people like myself an opportunity to add additional value to ourselves and our work. I hope there are other people that can take advantage of all that you are willing to share and I hope to see more content from your channel that I might be able to use one day. David

[@bud4lyf]

I did it in trade school for my apprenticeship.

[@ronaldodamot3673]

very good sir now I know.thanks sir for this vedio.

[@brentburns111]

Good job! if you ever need tips let me know.

[@jnelsonrosado9414]

Insulator calling hog nose 🤣🤣👍👍

[@jafferali2189]

Thank you so much sir and you are awesome

[@saifkalshekar4941]

Sir plz send me transition elbow marking squer duct 6 point elbow you can’t plz

[@Tamilsongs2813]

very nice to you also thanking

[@sujitsharma5992]

Very nice sir

[@etiennethepenier2743]

Hi Friend, Thank you for your work. Have you ever tried MetalFox, the online sheet metal flattening software? Have a good day ;)

[@daveosland3199]

Please remove your posts from my videos-

[@arbazshaikh6362]

nice

[@Hassankhan-sg2ne]

thanks alot sir me are gladfull

[@mdrupchan9]

Nice

[@awaisahmad5788]

boss i m a duct men ples tell me how to make double ofset up and down and side both in 1 pice ofset pleas pleas pleas you are a great teacher i was learn from your video round to saqare pattern making

[@arbezalamshekh9796]

square down 200+100 up round 150 mm offside 100 video upload sir please

[@thamimbasha4140]

thanks sir

[@dawoodpanhalkar6475]

Thamim Basha

[@dobby3058]

best

[@TheMdwfg]

Thank you so much! 22 people might have shit in their heads though.

[@daveosland3199]

Thank You!

[@Markitos203]

Here learning how to make stuff without solidworks.. i'm sure there won't be no computers after ww3

[@nehalahmad6643]

I thise like its

[@NickRanger]

This video screams auto cad lol

[@hasandonno1722]

Bery bad

[@daved9235]

Ha lame. Gay. Buy a reducer and elbow. All that time to draw that. Then have to have a shop guy make it cost of overhead was exceeded. Cost of buying it 35$. And job done in 2 minutes apposed to 58 minutes.

[@swaytiegooch4444]

A fabrication apprentice could gain many credits for a job like this. Also can make custom sizes and offsets something that would cost alot more than $35. Once templates are done its light work

[@simonmoshi922]

Thank you Dave you been great help 👍🏻

[@daveosland3199]

Thanks- I had my doubts anyone would be interested in these videos when i made them... Dave