I recommend buying a few XYZ cartridges so that you keep these things to refill. Then refill all of them with HatchBox. You should be mindful to not wind the filament tight up from the edges of this cartridge spool - should you choose it's going to push the sides regarding the XYZ spool outwards and it'll maybe not change easily into the cartridge. This kind of point is important to getting great images utilizing alternate filament in the XYZ cartridges. I measured the product with a micrometer at several areas along the spool and discovered the diameter is closer to 1. 69mm, an average of. This might be however similar to other filament I've encountered. The typical deviation normally very much in line with the 0.05mm error that is offered into the product description. The conductive 3D printer filament appears without any pollutants, and so far I have passed through an entire spool without incident. Presently you can get one filament Cartridge (0.6kg) for $28 transported. That is $46 per Kg and Makerbot filament is $48 per Kg + Shipping. Indeed you will find less expensive filament on ebay and amazon, but purchaser beware! Sometimes it really works great, but once you jam your extruder on a 20 hour print you almost certainly won’t be a happy camper.