Cheap And Discounts AD23-Offline Controller Board 3 Axis Offline Cnc Controller For 3018Pro 1610/2418/3018 Engraving Carving Milling Machine Wholesale. Buy Directly From Merchant AD AD WARM Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.