Hi burritodude. Thanks for reaching out with your question.
Robot Coupe does sell just the dicing grid for the R-model slicers. That said, we would need your model number to track down the appropriate replacement piece for you. Please give a member of our Tundra Restaurant Supply team a call at 1-888-388-6372 with your model number on hand, and we'll order the part for you.
The slicing blade and dicing disk can be purchased separately. The slicing blade is part #29334 and the dicing disk is part #101853. Have those part numbers handy and give us a call at 800-447-4941 and one of our sales team members will be able to get those parts for you.