use unions and negate parts to make a circle The most efficient way to create accurate curves is by using the Archimedes plugin. [compassCenteredSmall2] Archimedes Plugin Page A Roblox building plugin that allows users to easily create smooth arcs.

You could use blender as its good for models as studio Roblox is not great with models. To combine this into the smooth round corner you would have to set it to the same size as the cylinder and try to put it into place. You can use the Resize and align plugin or use spheres on your own

This plugin allows you to make smooth arcs / circles. Simply activate the plugin, select a part, select the axis you want on the UI, modify your angle, and then hit render.

RoCurve is a tool for building curves inside Roblox Studio. With this, you can design any curve you want, with however many parts you want it to be made out of. It makes building curves easy. Where Can I Get RoCurve? You can find it here: RoCurve - Make Smooth Part Curves - Roblox How Do I Use RoCurve? Set up 2 parts - the Start, and the Finish.