Thread: Serious Bevel issues. Never seen one this bad. Any Hope?

I think I remember reading each layer of tape adds about 1 degree,or slightly less than 1 degree of angle.

I am now looking and seeing that the different material makes a difference in gauge thickness.

steel, aluminium, zinc.

I learn something new every day!

Originally Posted by xiaotuzi

I think I remember reading each layer of tape adds about 1 degree,or slightly less than 1 degree of angle.

I have seen that too, but it was wrong.

Originally Posted by dta116

If I remember right 3m's website says 7mm per layer. I think it is probably more like 5.
3m Temflex 1700

7mm ? Are you sure ? How can a piece of tape be over 1/4 " thick ?

Most electrical tape is about 7 mil, or 0.007 inches, thick. 3M Super88 tape is 8.5 mil, or 0.0085 inches thick. That converts to 0.2159 mm. Thus, 5 layers of tape would be just over 1mm thick.

Gauge and "mils" are the biggest pain as far as measurements go. Especially when you're make boats out of stainless, mild steel and aluminum. A "mil" is a "thou" or a thousandth of an inch.

33+ tape = .007" thick; .014" doubled over the spine
88 tape = .0085" thick; .017" doubled over spine

Just another reason to hate the imperial measurement system

If it were me I'd drop back to a single layer of tape and set the bevel same as I would if the thing were breadknifed. I can't stand one layer of tap, much less 5. That would drive me up a wall.

You should be looking at a angle around 16 to 18 degrees if you own a little digital bevel box you could easily find out how many layers of tape you need to get near an exceptable bevel. I forgot to say that angle should be about 9 degrees both sides so combining through the center of the bevel apex to make it 18 degrees.

You will need to remove some metal, if you have a diamond hone try that with one layer of tape

According to this link and King David I of Scotland I have a large mans inch. 1 1/8" Modern inch since 1959 in the USA.

https://en.wikipedia.org/wiki/Inch