Math formula to lay out bevel angle

[DeafBoyzAudio]

Hello.
I've been struggling with this for a while... Never been able to figure it out. No help online... I know there is a way just not sure how...

So given a specific wall thickness how far back do you have to measure, then wrap and grind to set line to get a specific bevel angle?

Example: 1/2" wall... Measure 1/2" back (on square pipe) to get a 45 degree bevel...

What about 37.5? 30? 5/8 wall... Etc etc...

Yes I know there are gauges, eye it... But I want a good starting point for random pipe sizes.

I know there is a formula where you can plug in wall thickness, then the bevel angle and get a measurement on how far back to measure to get said angle....

Just not sure what it is...

[davec]

Depends which way you want to define the bevel. It's basic trigonometry. Attached.

[Woznme]

Forget about it. Nobody does it that way. Cut yourself a gauge out of a scrap piece of sheet metal. Get used to standing and holding your grinder or torch the same way. Grind 1/2" of bevel, check with the gauge and adjust. Then hold the same angle as you go. Keep checking and adjusting. Keep doing it and eventually it becomes muscle memory and you don't need the gauge.

[LalunAddax]

Can someone share with me the final solution? I know that it's basic trigonometry, but I'm really bad at it. Most of my study tasks were done by some sources or other people, so... I would be happy if you guys help me with this question.

[MetalMan23]

You could literally just lay it out on a table and just measure it.

No calculations needed

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[SweetMK]

Can someone share with me the final solution? I know that it's basic trigonometry, but I'm really bad at it. Most of my study tasks were done by some sources or other people, so... I would be happy if you guys help me with this question.

If you are on a computer laptop,, etc, with a scientific calculator, the answer is in that calculator.

Tangent is the function, you need to stop by the local high school, or someone math oriented, to demonstrate that calculator function.
I could type how to do it, but, it is like riding a bike,,
you can watch a dozen videos on riding a bike,, you will still not know how to ride a bike.
Someone teaches you hands on how to ride a bike,, in 10 minutes you have it figured out.

Get a hands on demo of a calculator,, you will then be an angle wizard!!

[cwby]

Buy a construction calculator. Simple to learn, easy to use.

https://www.homedepot.com/p/Calculat...4050/100324426

[farmersammm]

Carpenters bevel, set to the bevel angle you want, check it as you grind/cut. You'll be damn close when you're done.

[farmersammm]

When you have to cut an angle in tubing, square or round, cut the bevel first, then cut the entire piece to length. This gives you room for error when you make the beveled cut. It's pretty simple stuff.

[LalunAddax]

Can someone share with me the final solution? I know that it's basic trigonometry, but I'm really bad at it. Most of my study tasks were done by some sources such as https://plainmath.net/textbooks/ or other people, so... I would be happy if you guys help me with this question.

If you are on a computer laptop,, etc, with a scientific calculator, the answer is in that calculator.

Tangent is the function, you need to stop by the local high school, or someone math oriented, to demonstrate that calculator function.
I could type how to do it, but, it is like riding a bike,,
you can watch a dozen videos on riding a bike,, you will still not know how to ride a bike.
Someone teaches you hands on how to ride a bike,, in 10 minutes you have it figured out.

Get a hands on demo of a calculator,, you will then be an angle wizard!!

Understood you, it makes sense...

[tapwelder]

Adjust your project to fit the bevel. That is the way my dad did it.

[Country Metals]

Sounds like you just need a tri square

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