Template to Miter Tube

To help making tube to form straight T or according to the desired angle of T, I have done another online tool to generate paper template. Previously I made this instructable to make angle tube cut.

In the middle of the page, url here under, you will have to enter :

• diameter of main tube in millimeter
• diameter of the inserted tube
• angle in degree of insertion

Then click to generate a pdf file.

http://briconosaure.com/patron-de-decoupe-de-tube-t/

Before printing the pdf be sure that the document will not be scaled by your computer, you would loose the correct dimensions.

Step 1: Cut Template and Apply

The pattern cut after printing is placed around the tube with a tape.

Step 2: Marking

I mark in black the trace on the tube "receiver" by plating the inserted tube.

And let's go for the cutting, I made a test with a metal tube of 42mm and another of 20mm. My handling of the grinder did not make it possible to make something super clean, hence my illustration with cardboard rolls.

Step 3: Cut

As said above we can make T from tubes of different or equal diameters. For small tubes cutting is difficult but the next time I need a T with PVC pipes I think it will help me out.

Hoping this will be helpfull.

Cheers.

Comments

[ricehq]

I tried. The pdf I received generates a error

"An error exists on this page. Acrobat may not display the page correctly. Please contact the person who created the PDF document to correct the problem."

[MathB3]

Sorry to hear that, I made just a test and firefox did show properly the pdf.
Perhaps pdf format incompatibility ? The test I just made was diameter 100, inserted diameter 80 and angle 20.

What were your parameters ?

If you have decimals, separator is the point , not the coma.

Thanks for the feedback

[ricehq]

Today I tried and it worked just fine! I am not sure of the numbers that I did use, ButI did not use decimal separators at all. I hate computers!

[seamster]

This is really useful. Thank you for creating this, next time I'm working with tubing I will give your template generator tool a try. Bookmarked for later! Thanks! : )

[MathB3]

Thanks :)

[TheNecromancer13]

The way I always do it is to clamp the metal piece in an angled vise in a drill press, then use a hole saw of the correct diameter to make a perfect cut. Then I don't have to screw around with templates or computers or anything like that.

[MathB3]

I completly agree with you, this method fits when you cannot clamp or you just have a grinder and no hole saw.

Have a try, it might help you one day : )

[belsey]

Your method is probably easier when you are working with metal tubes... but this has many other applications (papercraft comes first to my mind) making it really useful!

[Willys36]

I wrote a routine to generate these templates for my TI 59 programmable calculator probably 30 years ago. Really dating myself!!!!

[MathB3]

For me it was hp 48 gx but I did not have a printer then i wrote a tetris ;)

[HughB19]

Remember the magnetic strips and the thermal printer? That calculator was fantastic. Also the library cartriges... I think I still have the Master Library book with all the equations. Thanks for the memory.

[Willys36]

Yep. In fact I still have my 59 and the printer! It quit reading the mag strips. I was a real power user, wrote a lot of engineering programs for it, published a few technical articles featuring the programs. Then PCs came out and zoomed past me leaving me in the technical dust.