I am currently selling off a load of surplus materials at bargain basement prices. The lot is a mixture of PLA and ABS but by far the majority is 1.5mm PLA. A variety of colours available. See my ebay auction here if you are interested. Would prefer someone else got the use of it instead of it going to waste.

http://www.ebay.co.uk/itm/50kg-of-assorted-3D-Printing-Filament-PLA-ABS-Various-colours/282651686894

It’s 1.5mm and not 1.75mm?

Sorry yes - 1.75mm