How to make 90 degree sheet metal elbow

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Learn how to make a hole sheet metal elbow.
To understand it more easy, it´s good to have a 3D vision.
I will try to explain the geometric, i hope you understand. the rest is to transfer the marks to make the template and use it to copy segment by segment for the elbow.
And use the bead roller for the segments to complete and assembly the elbow.

Опубликовано:

16 авг 2020

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Комментарии : 16

@sambiepaweynphirie5061 7 месяцев назад

This is very clear.. Thank you for sharing

@jimweda Месяц назад

I know this is 3 years old and don't expect Mr Larson to answer this but what kind of tape measure is that where he is able to make his marks from either end of the tape measure.

@odacreations4080 Год назад

Thank you for sharing sir

@Mikael.D.Larsson Год назад

My pleasure

@AZIMALION 2 месяца назад

Добрый вечер Сер я тоже делаю теплоизоляцию труб но у меня не как не выходит как измерить отводы научите меня как определить радиус колены

@twisted_ps2743 3 месяца назад

i understand that the diameter of the pipe is 146 , but how is the radius 98 ?? isn't radius half of diameter? i am new to this .. what is the "r" value and how do you find it?

@Inquisitiv3Mind Месяц назад

Answer pls

@otimphilip2401 6 месяцев назад

If I Wana draw with the radius bigger than the one you used . How can I expand it for 3 part bend?

@Mikael.D.Larsson 6 месяцев назад

This is working with any radius. Calulation is: radius x 2= Diameter. And Diameter x pi(3.14) = the leght of the circle. (You might need to add the 4th segment to get the elbow litle amother.) ohterwise the calculation is the same.

@Mikael.D.Larsson 6 месяцев назад

If you only make radius little bigger. Then you dont need the 4th segment. But if you want to make around 200mm in Diameter and up, then you need the 4th or more segments.

@Mikael.D.Larsson Год назад

i was at work and i didn´t have anything to do, so i rig the camera on to my helmet and started recording.

@tonycarmen4034 4 месяца назад

madilim sir,

@user-gy4rh2qu1g 7 месяцев назад

Where do you come from brother?

@Mikael.D.Larsson 6 месяцев назад

I’m from Sweden, were are you from?

@JahidHasan-hm9yb 7 месяцев назад

Don't understand 146/140 problem solve please

@Mikael.D.Larsson 7 месяцев назад

Hi, back in the time when elbows were made, they had a start and end piece in every elbow, and the size was to match the size of the claddings. So, the start segment is straight on one side and at an angle on the other side. The start segment is half the size of the middle segments. In this millennium, the making of elbows skips the start and end pieces because it is faster to assemble the elbow. When making the elbow segment, it is a must to shrink the diameter so it can fit the size of cladding because the segments are assembled at an angle. Connecting a straight piece to another straight piece is best when they have the same diameter.