Pet steps/stairs - adjustable, extendable, modular

Firstly - apologies for the mixed colour images, I've been using leftover filament for the prototypes to clear out space! Obviously you can use whatever colour(s) you like. Fully modular pet steps with no limit as to the number you can add. Individual step height fully adjustable - simply scale the Z axis. If you wish to make the steps wider and deeper simply adjust the X and Y axis (with uniform scale selected) - then adjust the z axis with uniform scale turned off if you wish to adjust the height. Ensure you apply the same adjustment to all steps. You can assemble layer by layer (bottom up) or step by step. Note - assembling layer by layer is significantly easier. Simply slide the male section of the side joint into the female section GENTLY on the adjoining block. Ensure the block is flat when you attempt to join and do not force otherwise they will get stuck. The fitting is meant to be snug to keep the steps stable. Once you start on the 2+ layer simply slot the socket of the upper