I had a great time printing my model Dragon Wine Bottle Holder. I chose to print using Eryone Tri color Dual Extrusion Filament Found Here: https://www.amazon.com/dp/B0BN5PLJ69?psc=1&ref=ppx_yo2ov_dt_b_product_details I have heard from a lot of printing enthusiasts about this material and how hard it is to get it printed without line striking. So I thought I would provide some information that I have found that has helped tremendously. I suggest testing this material using a round ring Model approximately 20mm high by 40 mm round. Using this type of model for print testing first will greatly improve your chances of printing with this medium by Using the print settings below. I suggest a 5% increase in speed until all of the verticle line striking fades. By all means, do not exceed 150mm speed as this will reduce the quality of your print drastically. Once you have found the correct spend and temp save those settings and proceed to print a larger abject. I chose my model Dragon Wine Holder and the effects were awesome. Print Settings for the K1 Max Layer .02 Speed 100mm Layers first layer 120% 4 outer layers (this helps to deepen the merging effect. Infill 15% Small feature speed 50% NO COAST NO WIPE Nozzle temp 225 HB temp 45