I took mechanical drawing in high school (1972) and loved it! This brought back fond memories! I agree with you, anything you can do on a computer is much better understood if you know how to do it manually. Thank you for taking the time to make this video.
This is great! I need to make a cone for a dust collection system for my shop. Just what i was looking for. Understanding the “how” makes using programs more meaningful.
Hi Dave, first of all your tutorial is very clear. One remark I have is the same as some of the other comments found. Points 1 and 7 for the small slanted opening are correct, but 2,3,4,and 5 should be horizontally transferred to the right side of your cone. You would then swing those numbers from the slant side to their corresponding numbers on the from the baseline stretchout.
I'm a sheet metal apprentice going through school. we're in our radial line development class right now and i'm naturally a slower learner. i appreciate the extra help youve provided here! thank you, God bless you -Gabe
Thanks a lot, feel like a moron in class when teacher trying to make us do these with little information at hand, suppose they want us to learn through figuring out how to do it in our heads so a video like this will be of tremendous help and easier to understand imho. Again thanks!
You bet! If I haven't done one of these layout in a while, I have to scratch around bit to get it right! You're learning something that gives you a basis that goes beyond having a computer program spit it out for you.... Dave
A lot of negative comments here. I didn’t realize that sheet metal fabrication employed the precision of watch gears. Good grief ok how about all you naysayers upload a video of how “you” would have done it. Great video I’ve been raking my brain trying to figure out how to make a cone for an old grain bin we have. This video has been the very helpful think I’ll do a scaled version first. Thanks for posting. To the naysayers stop being snobs.
You are suggesting that people offering the correct technique are snobs, and that sheet metal fabrication employed the precision of watch gears. I teach old school hand technical drawing and make no apology for correcting this wrong technique. Accuracy is very important when creating patterns for sheet metal fabrication or the parts wont fit together without gaps. A close look will reveal that the truncated portion of cone, when rolled and formed from paper, is not flat. I have made and sold videos of many pattern development techniques.
Dave, I was able to put this to practice using acad. I followed your paper and pencil method and used the acad tools. I came out pretty accurate-Thanks again!
+robert morin Don't ya love ACAD? One has to improvise a bit using ACAD from drawing by hand, but the concepts/procedures are the same! Good to see you doing it! Dave
I did okay on the one but when i tried the triangulation it became more difficult. Its easy to swing arcs with a compass and dividers on paper. With ACAD i am swinging arcs using the redius of a circle and then conecting the dots. Like i said i cannot dedicate myself to just doing layouts. I have to multitask on various jobs and it becomes difficult. I am going to try using ticks which i remember using on earlier ver of ACAD to mark the points. Do you have any suggestions in that arena?
+robert morin Sorry, but i use the arc method, too! you might have to set aside multi tasking for a bit while laying out the patter! Let us know if you develop any shortcuts! Daver
Oh yeah by the way I don't know any carpenters that can do this layout, The only people I know are sheet metal guys. This is straight out of my sheet metal drafting book. Good job explaining and also nice vid!
Dave, when properly laid out each developed line should touch the flat table, without rocking. Lines 1 & 7 are true as drawn, all other true lengths are developed by projecting points at the miter line to 1or7 at a right angle from center line. Swing arcs from apex adjusted to the new developed positions on line 1or7. When complete all points on the miter line will touch the table.
You're saying to wrap the template around your pipe, then center punch it...ok, that's a given....the big part is ...using your soapstone to trace it the pattern....then cut it w/ the torch...the center punch mark s assure you that you'll stay on the line or follow the path in the event those soapstone marks get rubbed off...- very good vid...Dave..thanks..~
Hi Dave- great video! I learned a lot. I have a bit more complex shape: a Volcano cone shape: wide at bottom, tapers inward as it ascends then small opening at top. Could you help me solve this problem. 10”h x 6”dia/bottom x 3”dia/Top. The Taper should start 1/3 up from bottom if possible. Think of the police megaphones but standing up. The tapers has me stumped
I am horrible at math but somehow great at understanding architecture drawing so maybe I have a brain that has a dyslexia about calculating numbers just for calculating numbers sake but if I have to make something then I can attempt it with some degree of success. I have become great at determining angles etc by folding paper. Luckily this is all for crafting so I am not building a house, or landing an asteroid on the moon. I was able t do this by studying a 4 volume set for plumbing cutting their on parts.I guess it also helps that I sew and when I have to draw up an original pattern you are working from a flat pattern to a shaped object. Who knew the same skills would be used with plumbing and clothing construction. At least this is the first explanation that I have come across concerning calculations and cone etc. everyone wants to tell you how to calculate but they do not show you how to use raw measurements and draw it out. That is more useful for me as a crafter.
Your vids are simple consise and to the point-love it! Could you do a demo using ACAD? I have to do layout for heavy fabrication at work in our boiler shop. I am not given the time to dedicate to straight layout. I have to do multiply tasks along with helping others. I need a quick tutorial for triangulation using ACAD-thanks.
+Adam Unruh I found it on line. the downside is it'll only accept a pencil-sized diameter pen/pencil. I'm going to Tig a larger diameter pencil tube on it- Dave
I searched the internet for your larger dividers to no avail. I may end up making my own out of wood. I may be able to get a pair at work that nobody knows what to do with. They may even throw them out! I will do a search for suppliers in the Pittsburgh area-thanks. How about the acad tutorial for this method?
Wow sorry to be negative however you are not even close to completing this layout correctly or accurately. Lines 2-6 on you front or what you call the side view are not true length, and how can you be accurate with out using drawing aids such as a tee squares and set squares. Math should be used to accurately determine your apex height ect. Setting your compass on 1/12 of the circumference and plotting them around your striking radius only leeds to accumulative error. One should work out the circumference of the base by multiplying the large diameter by pie 3.142 and measure this around the large striking radius. Once again I am sorry to be negative however you may well be miss leading students. Regards a boilermaker of 35 years. Not a carpenter
Sally Cheater you are quite correct. He should be drawing the points you mention through to the outer line of the elevation. I also agree that the circ should be measured rathet than stepped out.
dear sally cheater. im mechannical student from indonesia. can you tell me the best hand book to learn sheetmetal from basic until expert? Best Regard M. harry Fikri
This video is an incorrect and an inaccurate technique. The true lengths should be transferred to the right hand side by taking them perpendicular to the centre line.
I took mechanical drawing in high school (1972) and loved it! This brought back fond memories! I agree with you, anything you can do on a computer is much better understood if you know how to do it manually. Thank you for taking the time to make this video.
This is great! I need to make a cone for a dust collection system for my shop. Just what i was looking for. Understanding the “how” makes using programs more meaningful.
Hi Dave, first of all your tutorial is very clear. One remark I have is the same as some of the other comments found. Points 1 and 7 for the small slanted opening are correct, but 2,3,4,and 5 should be horizontally transferred to the right side of your cone. You would then swing those numbers from the slant side to their corresponding numbers on the from the baseline stretchout.
They are called true length lines and his aren't true lengths. You are correct. All lines except the 2 lines at the very edge are incorrect.
I'm a sheet metal apprentice going through school. we're in our radial line development class right now and i'm naturally a slower learner. i appreciate the extra help youve provided here! thank you, God bless you
-Gabe
+Gabriel Campos
Gabe- Practice and persistence makes up much more than "natural" talent!
Keep at it!!!
Dave
Best video so far ,thanks.
this video helped me layout a sheet metal lighthouse for Big Storm Brewery here in clearwater, fl. What a life saver! thank you
I love to hear that!
Dave
Well explained and presented Dave, Thanks
Thanks, Dave. Your pattern layout videos are very helpful.
Thank you Dave. That's gold!
thanks for the upload. you hit the spot. out here on the field we don't have computers.
You are a very good instructor. Thank you.
+Tommyd Archbald
thanks! I hope Ive' helped people learn some practical skills!
Dave
+Dave Osland do u have the layout for a pointed top cone
Thanks a lot, feel like a moron in class when teacher trying to make us do these with little information at hand, suppose they want us to learn through figuring out how to do it in our heads so a video like this will be of tremendous help and easier to understand imho. Again thanks!
You bet! If I haven't done one of these layout in a while, I have to scratch around bit to get it right!
You're learning something that gives you a basis that goes beyond having a computer program spit it out for you....
Dave
A lot of negative comments here. I didn’t realize that sheet metal fabrication employed the precision of watch gears. Good grief ok how about all you naysayers upload a video of how “you” would have done it. Great video I’ve been raking my brain trying to figure out how to make a cone for an old grain bin we have. This video has been the very helpful think I’ll do a scaled version first. Thanks for posting. To the naysayers stop being snobs.
You are suggesting that people offering the correct technique are snobs, and that sheet metal fabrication employed the precision of watch gears. I teach old school hand technical drawing and make no apology for correcting this wrong technique. Accuracy is very important when creating patterns for sheet metal fabrication or the parts wont fit together without gaps. A close look will reveal that the truncated portion of cone, when rolled and formed from paper, is not flat. I have made and sold videos of many pattern development techniques.
Dave, I was able to put this to practice using acad. I followed your paper and pencil method and used the acad tools. I came out pretty accurate-Thanks again!
+robert morin
Don't ya love ACAD? One has to improvise a bit using ACAD from drawing by hand, but the concepts/procedures are the same! Good to see you doing it!
Dave
I did okay on the one but when i tried the triangulation it became more difficult. Its easy to swing arcs with a compass and dividers on paper. With ACAD i am swinging arcs using the redius of a circle and then conecting the dots. Like i said i cannot dedicate myself to just doing layouts. I have to multitask on various jobs and it becomes difficult. I am going to try using ticks which i remember using on earlier ver of ACAD to mark the points. Do you have any suggestions in that arena?
+robert morin
Sorry, but i use the arc method, too! you might have to set aside multi tasking for a bit while laying out the patter!
Let us know if you develop any shortcuts!
Daver
Sure, can you send your email?
Amazing
😲 nice 👍🙂
Thanks
this is the video I've been looking for.
Sir you the best help me very very much
Oh yeah by the way I don't know any carpenters that can do this layout, The only people I know are sheet metal guys. This is straight out of my sheet metal drafting book. Good job explaining and also nice vid!
Very nice way to explain
Thank you
The way you instruct is good
Oh ok that is awesome. Not exactly what i doing but great explanation, i can take it from here. Thanks for sharing.
Thank you so much! This has been eye opening!
Awesome! Thanks!!
Good job I want to learn from you.
Hope to helps you! Dave
Thank you , You are brilliant
No smarter than the average person, just took the time (and several mistakes) to get it right. Dave
and in the video you still made mistakes,you did not obtain the true lengths of lines 2-6
Thank you sir for explaining with clarity
Could you use the same method if it were not an angled top
Dave, when properly laid out each developed line should touch the flat table, without rocking. Lines 1 & 7 are true as drawn, all other true lengths are developed by projecting points at the miter line to 1or7 at a right angle from center line. Swing arcs from apex adjusted to the new developed positions on line 1or7. When complete all points on the miter line will touch the table.
Your accurate John.
You're saying to wrap the template around your pipe, then center punch it...ok, that's a given....the big part is ...using your soapstone to trace it the pattern....then cut it w/ the torch...the center punch mark s assure you that you'll stay on the line or follow the path in the event those soapstone marks get rubbed off...- very good vid...Dave..thanks..~
Hi Dave- great video! I learned a lot. I have a bit more complex shape: a Volcano cone shape: wide at bottom, tapers inward as it ascends then small opening at top. Could you help me solve this problem. 10”h x 6”dia/bottom x 3”dia/Top. The Taper should start 1/3 up from bottom if possible. Think of the police megaphones but standing up. The tapers has me stumped
Thank you from a handbuilding potter.
Do you have video for cone you raised first, slanted on larger circle?
Good technique.
I am horrible at math but somehow great at understanding architecture drawing so maybe I have a brain that has a dyslexia about calculating numbers just for calculating numbers sake but if I have to make something then I can attempt it with some degree of success. I have become great at determining angles etc by folding paper. Luckily this is all for crafting so I am not building a house, or landing an asteroid on the moon. I was able t do this by studying a 4 volume set for plumbing cutting their on parts.I guess it also helps that I sew and when I have to draw up an original pattern you are working from a flat pattern to a shaped object. Who knew the same skills would be used with plumbing and clothing construction. At least this is the first explanation that I have come across concerning calculations and cone etc. everyone wants to tell you how to calculate but they do not show you how to use raw measurements and draw it out. That is more useful for me as a crafter.
Awesome Dave. Would you do some square to square transition video.
Your vids are simple consise and to the point-love it! Could you do a demo using ACAD? I have to do layout for heavy fabrication at work in our boiler shop. I am not given the time to dedicate to straight layout. I have to do multiply tasks along with helping others. I need a quick tutorial for triangulation using ACAD-thanks.
What are the instruments you used to layout the paper in the video? Great demonstration and thank you btw🙂👍🏾💯
very very useful for my design heartly thanks to u sir
Glad it's of some help....
Great pattern making
Awesome thank you!!
wow amazing
try cone layout program freekn rocks and provides dxf file
what is the correct terminology for this layout? is it radial ?
How to do a drawing cone that been cut straight of at the top of the cone
so good
🙌👏
What are the measurements for the angle? You start the vid with out telling how to do the 1st part? Can someone help here?
Where can I get an awesome compass like that?
+Adam Unruh
I found it on line. the downside is it'll only accept a pencil-sized diameter pen/pencil. I'm going to Tig a larger diameter
pencil tube on it-
Dave
+Dave Osland Try Harbor freight tool! $7.99-
Hi Dave,
Can you do a Flat Back Cone please?
awsome thanks
I'm glad so many find these layout videos useful! I thought when i did them only a few would remotely be interested in them!
Dave
Great video, I much prefer the hand method.
Thanks! Understanding layout principles is a plus, even if one uses a program to layout patterns...
Thank you sir
Hi sir please can you update how to make round elbow .
Nice video , same application apply for just a basic cone ?
Pls send howe is first what won th to do for this making
you can see from the side that the sides are down to low at least 3mm
Where did you find the metal engineer rule?
+robert morin
Blueptint stores sell all kinds od cool rulers and templates
I searched the internet for your larger dividers to no avail. I may end up making my own out of wood. I may be able to get a pair at work that nobody knows what to do with. They may even throw them out! I will do a search for suppliers in the Pittsburgh area-thanks. How about the acad tutorial for this method?
thankyou
can you post eccentric cone development pattern inner dia 1000 and 2000 h=1000
You didn’t transfer true length properly
Sir, I need your help for the development book for the development of plates pl send me pdf file!
sorry Dave but that's wrong you still need to use a true length measurement if that was on a 45° angel that would be way out
I agreed with you, he shoul use a flexi- carved
post your own video or at least include a youtube link for the correct method...
you must be found true lenght of generator line next transfer to development view!
You are doing the pattern incorrect, you need to bring the truncation lines out to the true length, otherwise the top angle will be incorrect.
DAVE I WOULD LIKE TO SEE YOU MAKE A MOONSHINERS COPPER STILL
45 years ago , my cousin and I built one and distilled 500 gallons of plum wine!!
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You can even tell after you were done it was done wrong
Complete balls up , you are supposed to true length the radial lines from the side 🙈🙈🙈
Sorry wrong
Wow sorry to be negative however you are not even close to completing this layout correctly or accurately. Lines 2-6 on you front or what you call the side view are not true length, and how can you be accurate with out using drawing aids such as a tee squares and set squares. Math should be used to accurately determine your apex height ect. Setting your compass on 1/12 of the circumference and plotting them around your striking radius only leeds to accumulative error. One should work out the circumference of the base by multiplying the large diameter by pie 3.142 and measure this around the large striking radius. Once again I am sorry to be negative however you may well be miss leading students. Regards a boilermaker of 35 years. Not a carpenter
Sally Cheater you are quite correct. He should be drawing the points you mention through to the outer line of the elevation. I also agree that the circ should be measured rathet than stepped out.
dear sally cheater. im mechannical student from indonesia. can you tell me the best hand book to learn sheetmetal from basic until expert?
Best Regard
M. harry Fikri
This video is an incorrect and an inaccurate technique. The true lengths should be transferred to the right hand side by taking them perpendicular to the centre line.
Ĺ
Totally wrong......!
Rubbish..!
You didn’t transfer true length properly
post your own video or at least include a youtube link for the correct method...
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