IDK what you consider large part But here is how I print most Nylons successfully should be true for NylonX too as the warping is caused by the Nylon My go to Nylons are Taulman 910 and Hobby King CX12.
1.) I got the Bed at 85
2.) I use gluestick on top of it
3.) I print directly from the print dry
4.) I got a sheet of plastic draped over both the print dry (homemmade food dehydrator conversion) and the printer
5.) I don't take the part of the build plate until it cools down
As for size

The ringgear/hub is about 130mm in diameter the gears are about 30ish mm in diameter. the bearings are 608s Its all taulman 910 and printed solid with a .8mm nozzle. .8 outside perimeters 1.4mm inside perimeters 7 perimeters (less on the smaller gears) The tire of course is TPU as that gives better grip and more flex as you want in a tire. The layer height is .32

Thats it running in an ABS holder Which on the OD is an 8 inch hexagon