[How much filament do I need to buy for an Ultimaker 3 Extended?]

Well you could slice a few things in cura which is free and you will need it anyway to use your UM3. That will tell you how much filament you need - typically in meters but I think it's possible to get it in weight. Filament is sold by the weight. For example UM sells .75kg spools. Some companies sell 1kg or 2.2kg spools.

I recommend you try faberdashery filaments - I've never tried them but hear great things and they are in the UK. Also I recommend UM for the PVA as their formulation doesn't absorb water quite as fast (keep PVA very very dry).

I also recommend you start out with prints that take less than 3 hours - start small! You will learn more faster. It took me about 100 prints before I really understood all the main issues and was getting perfect prints every time. This will come much slower if you are doing 20cm multi day prints.

Thanks for your reply! This will be really helpful to me.

So, to check that I've understood the basics:

- Buy non-PVA filaments from faberdashery (I just checked it out and it looks perfect!)

- Buy PVA support filament from Ultimaker themselves (or at least from a reseller)

- Start small

Also, which diameter filament do I need? Faberdashery offer 1.75mm or 3mm and the Ultimaker website says it needs 2.85mm :/

[How much filament do I need to buy for an Ultimaker 3 Extended?]

Hi there, I've bought an Ultimaker 3 Extended and it's going to arrive soon. I was wondering how much filament I need to buy and what types I should look for. How much filament will I get through in a month, for example? It will be used maybe once or twice a week for an object about 20cm cubed. I will need to use a build material and a water soluble one together.

Thanks for your help