Filament amount formula

Anyone have a formula to calculate the length of filament needed for the Cubic Centimeter result of the Slic3r ?

 

1 cm Filament = 0.9625 cm3
1 cm3 volume = 1.03896 cm Filament

or lets just say you'll roughly need same length in cm as Slic3r calculates in volume

i feel stupid to have wasted time on this

 

I think you will find that
1 cm filament = 0.025 cm3
or 42 cm = 1cm3

all numbers approximate.

volume = (pi x D x D) / 4

 

hmmm....

 

if you devide 1cm/0.175 = 5.7143 number of filament in 1 row of the cube
5.7143 x 5.7143 = 32.65 pcs in a 1cm square area
32.65 x 1 cm hight = 32.65 cm total 1cm pcs you need to fill the 1 cm cube so, you'll need 32.65 cm length for each cubic centimeter volume you need

 

I suggest you use the calculator you had in the example and enter the RADIUS instead of the diameter. Also take note of where the decimal point is in the answer.

 

whoops ! >_<

 

Well done.

So, filament sells by weight, how can we calculate total volume of 1kg of PLA?

I'm so slow (

 

divide it by the density, i think it's around 1.25, 1kg/1.25 = 0.8liter

 

And if you don't want to do it yourself, Cura has a calculator that will do both amount and cost per kilo or mm.

 

please, post link on it, maybe it can be better

 

@DobryG; If you download Cura (it's free), you can use it to slice and generate gcode. In the expert settings, or tools, I forget which, you can add the price/kilo and it will calculate the individual piece price after is slices your project. It isn't a direct link to a calculator.