 So, curve brushes are awesome, but you wanna make your own. Not a problem. Let's just say that you have three objects, and you wanna turn them into a brush set, like the Army brush or the IMM curve brush. Well, to do that, first make sure that you have divided the object into three poly groups. A top side, a middle, and a bottom. The easiest way to do this is to hold control and drag a mask, control W to group, repeat this for the middle, and again for the bottom. Once you have three groups, make sure the camera is facing perfectly from the front. Then press B, create insert multi-mesh, and it will turn every sub-tool you had into a single brush. Now, if you save the brush right now, it will be a standard multi-mesh brush, like a sword brush, or an axe brush, or a bow brush. But under stroke, if you turn curve mode on, now it's a curve brush. Now, you'll notice they're not properly connected, so to fix that under brush and modifiers, turn triparts on, weld, and stretch. From here, the curve will be drawn properly, and it's even better if you go to stroke and turn lazy mouse on. Now, whatever settings you have here are going to be applied to all the objects in the brush. So if you go under modifiers and enable size and change the shape here, all that stuff, the depth, and the lazy mouse will be constant for all the shapes. Now, once you've got everything set up under brush, if you save as, you can turn all this into a brush file that you can send to your friends or share online. Make sure that you save this file under local C, program files, pixel logic, Z brush, startup, and brush presets. If you save it anywhere else, then you cannot save it to your custom UI. In order to make this brush a part of your custom UI, double-click the file from its new home. It will show up at the bottom of the brush menu. Turn on custom UI and drag the brush from here to wherever you want. Disable the custom UI and under preferences, config, store UI, and save. And from now on, your curved brush will show up in your default UI every time you start up Z brush. Hope that helps, and as always, I hope you have a fantastic day, and I'll see you around.