MakerBot Print is our newest print-prepration software, which supports native CAD files and STL assemblies,
allows you to interact with all your printers via the Cloud, and many other exciting new features.
Thanks Doober, really appreciate the reply but sadly they don't ship to the UK. It did however confirm that the smaller bearings could be 5mm and i'd found them for a reasonable price on ebay.co.uk. And it also made me remember to look on ebay.com rather then than the UK site and i've found some for around $4 each which isn't too bad, certainly a lot better than the local sellers as they want at least $10 each.