I found that the hand drawn supports only worked for the bearing clips; on the turntable base they mostly fell apart before they could do any good. For the camera holder print they were doing the same thing, but my printer broke about a quarter of the way through the print (Bowden push fit came out of the hotend mount) and so I never printed the whole thing. While I was working on repairing my printer I redesigned it in OpenSCAD to suit the hybrid Ciclop/FreeLSS design, and made it much more printable too.
As for warping, I discovered that when trying to print parts for GUS Simpson a while ago, and upgraded to a heated bed in order to prevent it. I've never looked back; I use the heated bed even for small prints because it makes them stick so much better, and it's essential for large things like these. I was never able to get blue tape or anything else to stick well enough to resist warping.