Cabinet Pedistal Feet

So this model actually wasn't something I was going to put up because it was super simple, but I did something I was actually pretty impressed with and figured it would be neat to show others what the printer can do.

I wanted to lift the desk I bought for the XL printer so it was level with another desk I had put up.  I bought a plain old melamine desk from Ikea and a cabinet and two legs.  The legs and cabinet were 27.5", but my existing desk was 2 3/8" higher.  So I figured I'd just make some legs to go under the cabinet and something to extend the other legs.  I made this entire design to be one solid piece, and planned on making it from TPU, but when I set up the print it was something like 1 day and 18 hours or thereabouts.  TPU is a pain in the next to start with, and takes so much longer to print, and costs quite a bit more than other filament, so I thought maybe I would try to print part of the print with TPU and the other with something else.  I also thought that having the entire foot being TPU would be a bit unstable, so I thought it would be better to have something more stiff comprise the larger volume of the print.

After some research, I saw someone said it's much easier to have TPU stick to PET over PLA, so I decided to make the majority of the print from PET.  I didn't know if the TPU would just stick to the PET layer to layer, so I decided to make the PET “envelope” the TPU by having the TPU be somewhat of a plug… a wide surface that dropped to a skinny surface and back to the full shape.  You can see my sort of plus sign in the middle of the print.

I also wanted a small infill on the PET, but I wanted the TPU to be pretty stiff, so I did 50%.  I think if I did it again I'd try to drop that to 30 to get a little more ductility and deformation.

I can say I wouldn't have even considered doing TPU on my old MMU on the MK3s.  I had a hard enough time doing TPU as a single filament… the printer would never have survived loading and unloading the TPU every layer by itself.  Having the multiple extruders on the XL made this model a breeze.  It didn't even blink, just plugged away at the two materials with no issue.

For what it's worth, I got a bed heating error with this print and ended up moving the parts around.  I'm not sure if it's due to something about the surface area of the print and the high print temps for the bed for PET, but keep that in the back of your head if you use my gcode.

I also added some pictures while it was mid print to see it doing the two different materials simultaneously.  There's also a before picture of the table to give you an idea of the concept.

Made with PET and TPU, message me if you want the fusion 360 files as always.