Thread: calculating the radius of a curve

Originally Posted by Andy Pope

This page explains about bend allowances.
http://www.mlevel3.com/BCIT/Bend%20Layout.htm

The formula appears quite straightforward but you will need to create a lookup table for the K-factor values.

Hi Andy,

thanks for that, a bit over my head; I am trying to make life easier for staff around me to work out track sizes thus speed up production.

Any chance of helping me out on this one

Originally Posted by shg

This can be done in Excel (because you can do most anything) but it requires a fair amount of computational geometry -- stuff that is already built in to any CAD program. Or Visio.

Hi Shg,

I am building a quoting system, I appreciate that their are cad programs and such, but I am building this to be converted into a web based system.

Any help would be much appreciated

stephen

Hi Steven , Try your amended File.
Its a bit messy,at the moment, but it can all be cleaned up.There's your worked example with calculations and a Command button to automate the answer from data in "A2 to F2".
See what you think for starters.
Regards Mick

Originally Posted by MickG

Hi Steven , Try your amended File.
Its a bit messy,at the moment, but it can all be cleaned up.There's your worked example with calculations and a Command button to automate the answer from data in "A2 to F2".
See what you think for starters.
Regards Mick

Hi Mike,

I am gob Smacked WOW

Thats amazing

cheers

Originally Posted by MickG

Hi Steven,
I should continue this, on this thread.
Attached is an example.
Your thoughts.
Regards Mick

Hi Mick, its looking very nice

the bay needs to have the option of entering the amount of facets ie 3, 4, 5, 6, 7, 8 ,9

we dont really need a drawing, but if this can be acheived that would be great.

the angles need to be inputted seperatly, as these can differ as you go round.

also the radius changes from track / pole chosen, probably done through table and lookup or index

the radius is taken from the center of the track or pole.

Cheers

stephen

Hi,Steven.
Please confirm, if you have for example 9 Facets, will the Facet lengths for one side of the bay be the same as the other i.e. If the Facets are the same then a 9 Facet Bay would only need 5 Dimensions for the Facet lengths.
Regards Mick

Originally Posted by MickG

Hi,Steven.
Please confirm, if you have for example 9 Facets, will the Facet lengths for one side of the bay be the same as the other i.e. If the Facets are the same then a 9 Facet Bay would only need 5 Dimensions for the Facet lengths.
Regards Mick

Hi Mick

attached is a pdf

Originally Posted by stephen1000

Hi Mick

attached is a pdf

All facets could be different, never done a 9 facets bay, but could in the future.

Hi Stephen, Sorry about the misspelling !!
I have added a couple of examples.
Is this what you want.??
Any thoughts.
What's this about a Back bend, Have you got some dimentional details.
Regards Mick

Mick, Shg

you guys are amazing,

what I am looking for is a box or drop down that has 1,2,3,4,5,6,7,8,9 once thats chosen you then enter the info in the amount of boxes,

ie 3 facet bay 1,2,3

5 facet bay 1,2,3,4,5

regards

stephen