Go to "resources" tab, select 3D models, upload your model. Go on your projectile mod element, in visuals, in the list "model", you might can select your model, and BOOM : you got it!
you can make models with blockbench. in BB you can download plugins, try to find one, that adds templates. there should be a template for an arrow. you can use that as refference.
Go to "resources" tab, select 3D models, upload your model. Go on your projectile mod element, in visuals, in the list "model", you might can select your model, and BOOM : you got it!
you can make models with blockbench. in BB you can download plugins, try to find one, that adds templates. there should be a template for an arrow. you can use that as refference.