Great video and nice to see younger person that can layout by hand.i have been doing sheet metal for over thirty years now.this is one way to do it.to me it’s just as easy using your square and points,little more precise on the round.every one is going to plasma tables and what we do is a dying art.
Wow. That is super simple now that I see how it's done. Where I work with insulation, square to round is pretty rare and I have never been shown how to do it. Thank you for teaching me
I’m sure this method is fine for a rough job in 1mm aluminium. However try this on a square to round made out of 3mm steel 2m tall. Or an offset square to round. If you are a sheet metal worker you would mark it out properly and accurately by triangulation.
I had to do one out of 18ga stainless from a 40"x40" to a 31.062" Diameter hole, and I had to do the triangulation way to make it as precise as possible.
Thank you so much. I am new school and was asked to do it the old school way at an interview and I was blank. I think old school is easier. Keep on teaching us thank you.
Radial line for sq2rd? No, triangulation or this method which is known as the short method. I actually prefer this method for things that would normally require radial line development..... Nowadays I just burn it on the table!
In 1986 the vulcan plasma cutter came out on the market, I was a old school fabricator when everything was laid out by hand,, to form the radius on a square to round, round to round, step breaking it is ugly ,, I always clamped a vice grips on the square corner and place it in the roller,, mark stop and starting points w a sharpie and rolling up,, tweaking the round is super easy by hand, unless you go 20 ga or thicker , then a wood paddle is used to form the round , a few good whacks should do it .
Im trying to go from a 6inch round stove pipe to roughly 11inch square chimney flue. The Easiest way im thinking is folding long piece of sheet metal into a V, cutting out a spot into the bottom middle and inserting it InTo the stove pipe so ash funnels back down it And riveting the sides up from the insert so its not flat on the bottom. What is the application for this piece you have crafted?
Thanks man i really appreciate this vid. 👍🍻🤙👊. Had to make 3-16×12 to 10" round 18' high today. Got it done bro! By far the easiest way. Now cry union boys!😂😂
The union did not invent radial parallel and triangulation layout they simply just teach it. I am glad that you found another way to get your project done 👍
This is not so much old school, more like a short cut but a very good one. It's actually in a textbook. It's called the short method. And I think it's more useful for short cutting radial line layouts. Like bvent roof flashing or things that layout sort of bib shaped
Who cares. I got the point. I rarely listen to the audio anyway. The mans’ demonstration was clear and understandable. I didn’t listen to the audio in this case either.
David Price this one i use most www.contorion.de/elektrowerkzeug/bosch-akku-blechschere-gsc-12v-13-mit-2-x-2-0-ah-li-ion-akku-l-boxx-2105704?gclid=Cj0KCQjwsuP5BRCoARIsAPtX_wFs0cyGOg68hd4XeZWFSnB8hvNH6Cv4pMjPf7JGNrwUGUk8HwPhNRAaAkQDEALw_wcB&aid=383268462455&targetid=pla-827204589503&ef_id=Cj0KCQjwsuP5BRCoARIsAPtX_wFs0cyGOg68hd4XeZWFSnB8hvNH6Cv4pMjPf7JGNrwUGUk8HwPhNRAaAkQDEALw_wcB:G:s
Sheik alite just Like in the video instead a half square you use a half rectangle as long the round is on the middle line from the rectangle you can make a half just like in the video
that is not an old school method.. that's cheating on an equal square to round, what if it was an off centred square to round and why not do it by triangulation , and teach apprentices to do it... not proper trades men who do this...
John Brady A good sheet metal worker showed me this method for about 25 years ago and told me it’s an old school method , so recently somebody ask me to do a video about it and that’s what I did .
@@Sheet_Metal_Workshop i hope i haven't offended you, that was not my intent, my main reason for commenting was that i have seen many a short cut being done with tricky jobs and easy copied, which makes it easier for people who have not done their apprenticeship to take work off time served trades men... also i dont like the computers that are used for making templates and even a square to round... to me it takes away from our trade.... ive never used one... . i wish you well.....
Sheetmetals a dying trade man. Like my HVAC teacher said, if ya don't move with the times you get left behind. I worked in an old school sheetmetal shop and learned shit. It's useless dude. 100 percent useless. Plenums, round pipe, ductboard, bla bla bla is where HVAC went. Nobody gives a shit about trade anymore it's about that fuckin dollar. Slap it in, get 2 grand, carry yer ass to the next one. Unfortunately that's how it is. I made 17.50 hr and applied at a HVAC place and put 15. The cocksucker said "ain't that a little steep". The piece of shit slapped ductboard in and payed guys 10 an hour if he could. I almost told him "oh, that's right, you use fuckboard". It's a shame, it is, yet that's where the trade's going. To shit.
Was he a good sheet metal worker or a good Lagger? There's a huge difference between ducting airflow and wrapping pipes. Ductwork has bolted flange or slide joints, where lagging has lap joints. Plenty of laggers might use this because they don't need to worry about air leakage, but if you need to have accurate measurements or offsets this won't work out for you at all. A quality sheety would be able to triangulate an equal sq-rd just as quickly as this without having to waste time making a mock-up model. You're not going to be able to make a mock-up when your sq-rd is 3000 x 3000-2100 x 1500H, you'd be wasting 3 sheets just to make a mock pattern for the real pattern. In saying that though, to all the puritan sheeties condemning this method, when was the last time you actually had to triangulate a sq-rd in the shop? If you do it on the reg, good for you, not many people get to exercise the skills of the trade anymore. Most modern sheeties run for help when they have to calculate the cut sizes, let alone actually marking out fittings.
Why bother having these skills anymore, done pattern development for years from thin gauge to thick and from small to very large. 33 years experience and now work as a sheet metal worker in aerospace, and the money is not there for the skill anymore.. Unskilled guy's are less than a £1 behind us...and glorified secretary's who i work with are on more (£35-£40k)🤬🤬🤬
Mensch...... Todo. Die Methode ist sehr alt und nicht präzise.......! Klappt auch nur bei kleinen teilen. Wenn die Objekte ,Maße Größe werden Klappt es nicht. Zu ungenau. Besser ist es Abwicklen oder ausrechnen. Es gibt inzwischen viele Apps 🤪👍 sogar kostenlos 🙃
Ich habe gute Erfahrungen damit gemacht als es noch keine Apps gab , und ich hab sogar große Übergänge damit gemacht hab einfach 1:10 skaliert die Maßen abgelesen und wieder zurück berechnet und es hat gepasst . Und wenn du die Methode ganz genau mach dann sind die Maßen auch genau, das hängt alles von Klempner ab wie genau er arbeitet . Meine Meinung
Roll shortcut is legit. I've seen it in text books. BUT it is a shortcut. Really great for offset/off center fittings. Also works great with the dykem blue.
