i need a calculator for this

[rictec]

anybody knows of one that does this?
I need to calculate the length a roll of tape
without unwinding the tape. I know the diameter and thickness of the
tape. The tape is wound on a core. I know the diameter of the core.
Given that information, how do I calculate the length of the tape

thank you

[saldous]

Why on earth do you need to know such info?!!

[BoSJo]

use a loop in a script or something.

Do Until OutDia =< InDia
TempLength = OutDia * 3.14
OutDia = OutDia - Thick - Thick
Length = Length + TempLength
TempLength = 0
Response.Write "" & Length & "
"
Response.Write "" & OutDia & "
"
Response.Write "" & inDia & "

"
Loop

Response.Write "Total length is " & Length

havent tested this though

[cruisin-thru]

Man that is neat.

[rictec]

i got the math formula to do it but using excell is a bit slow
yo dont know any prog that simple does that

to saldous
imagine you have a tape if you cant unwrape it how can you tell its lenght?

maths is the answer lol

nice one bosjo thanks

i hoped some day they port mathematica to pocket pc :-DDD never lol

[BoSJo]

Don't know of any prog. that will calc. it for you

Use the code

Dim Length, OutDia, InDia, Thick, TempLength
Length = Your Input
OutDia = Your Input
InDia = Your Input
Thick = Your Input

Do Until OutDia =< InDia
TempLength = OutDia * 3.14
OutDia = OutDia - Thick - Thick
Length = Length + TempLength
TempLength = 0
Response.Write "" & Length & "
"
Response.Write "" & OutDia & "
"
Response.Write "" & inDia & "

"
Loop

Response.Write "Total length is " & Length

and youll get your result, just notice that this is not 100% accurate since it dossent calculate the center line off the material, thus using thick material will give an inaccurate result

[BoSJo]

Heyyy just came across this little proggi (http://www.saltire.com/xpander.html).

You can try and fool around with it, maybee you can get it to calc. it for you

[buzz_lightyear]

Don't know of any prog. that will calc. it for you

Use the code

Dim Length, OutDia, InDia, Thick, TempLength
Length = Your Input
OutDia = Your Input
InDia = Your Input
Thick = Your Input

Do Until OutDia =< InDia
TempLength = OutDia * 3.14
OutDia = OutDia - Thick - Thick
Length = Length + TempLength
TempLength = 0
Response.Write "" & Length & "
"
Response.Write "" & OutDia & "
"
Response.Write "" & inDia & "

"
Loop

Response.Write "Total length is " & Length

and youll get your result, just notice that this is not 100% accurate since it dossent calculate the center line off the material, thus using thick material will give an inaccurate result

WOW!
i would never figure it out... cool!!
...was never good at mathematics... :o))

buzz