Yeah, I second the recommendation for SpaceClaim.
"I have a whole FDM optimized collection to bend, to optimize it for SLS printing." What do you mean by this? Can you explain further? I know about the two printing method but I can't figure out how you're optimising by bending into a cylinder.
One way of doing it in Zbrush is to make a height map; in Zbrush, the command is called GrabDoc. From there you would apply the height map image to a cylinder comprised of millions of quadrilaterals and then make a displacement using the Apply DispMap command.
The advantage would be there would be little to no distortion like you'd get via bending. The disadvantage is, it would be hard to setup since once you had your height map image you would need to make adjustments to the image in an image editor and or adjust the initialize on the Cylinder3D primitive so that the image would be mapped to the cylinder without distortion. Another disadvantage is there can be no undercuts. What I mean by undercut is, take a look at my
bas-relief rhino in the turntable mode. See how that ear is filled in behind it?
I made this bas-relief via a height map image and displacement. I could have easily hand sculpted behind the ear to make it look good after doing the displacement, but at the time, I did it for a 3 axis CNC milling machine. To machine behind the ear, one would need at least a 4 axis machine, either that or a number of inconvienent repositions of the workpiece at intervals as the part was machined. I could put this same bas-relief on a cylinder and the distortions would be minimal. If interested let me know and I could walk you through it. You can get Zbrush as a
45-day trial if you don't already have it.