Originally shared by Nicholas Seward
This is my first printer that can be inverted so what do I do? Invert it! It printed well on its side also. The 3/8" screws sag enough that you can see each orientation transition. I plan to bump the size of the screws so that the system is 2.5X stiffer. reprap
I’d been troubleshooting my 3DR today and figured it’d be a whole lot easier to do so with it upside down…I guess I can see what would happen if I did so.
I’d like to request some extreme bridging tests, please.
@Dale_Dunn Sure. How big is extreme?
How is the z wobble from the screws on this variant?
@D_Rob One screw has a slight wobble but the screw has a 1" pitch so it would be very hard to make a part that you would notice an artifact on. I have better screws that are 2.5X the stiffness that won’t have this problem.
Extreme bridging? This looks pretty extreme: http://i.imgur.com/0gTrc22.jpg
@Dale_Dunn Here I did a test with a 71mm bridge. http://forums.reprap.org/read.php?4,287747 I suspect that I could do a little longer but I hardly design with overhangs that are longer than 40mm.
Is that 71 mm inverted, or printing upright? Can you bridge farther inverted?
@Dale_Dunn Ohh! I will have to test it inverted. I suspect that when the printer is sideways the bridging will be the best.
Only in the right direction. 
