I modelled this Bob-omb tissue dispenser in Blender, sliced it with Luban, and printed it on the Snapmaker J1s. My daughter sent an image of one somewhat like this and so I decided to surprise her and model and print one. It was hard to tell how big it was, so I guessed at the dimensions. This first version is a little small to be an effective tissue dispenser. It is more suited to being an ornament, or perhaps a bank, or hold a small planter.
It was printed in Black/White Creality Hyper PLA and Gold/Silver Bambu Labs Silk PLA. Speeds were 40 mm/sec outer, 80 mm/sec inner and 160 mm/sec infill. Temperatures were: extruder 210C printing, 160C standby; bed 65C.
In the first version of this dispenser there are 10 parts in total. There are two key parts (pin and key-top), two screw-on top parts (threads and top), two feet, two eyes, and two main body parts (bottom which holds the feet, and middle which holds the key and eyes). The body, key and screw-on top were split into two parts to avoid printing with supports. The Bob-omb was assembled and glued together with super glue and two part 5 minute epoxy.
In the image of the bottom middle you can see that it was printed on a different surface. This is Build-Tak placed on the glass side of the build plate. I was concerned about adhesion issues for a 6 hour print and the edge of the bottom is not very wide. I have used Build-Tak before on a previous machine, which worked really well for PLA. The Build-Tak in this print held very well. As this not a flexible bed, it took some thermal shock (cooling the build plate and part and then rapidly heating the part), and some firm tapping with a cardboard tube to get it to release. That was a lot of fun.
A side note on using glue. After trying super glue on some of these parts, I don't recommend it as there is some variability in working time. There was also no way to clean up the PLA if the super glue got somewhere it wasn't needed. In the future, I am going to stick with the 5 minute epoxy I have, as it has lots of working time and wipes off PLA without damaging the surface.
I have printed two of these smaller Bob-ombs. I printed the second bottom middle part on the PEI side of the build plate. There were no adhesion issues and the print completed and released normally (at around 30C), no banging required.
To have a usable tissue dispenser, the model diameter has been increased by 2.5 cm. A larger one has yet to be printed to see if it works. I have also modelled bank and planter holder screw on tops, for the smaller Bob-omb.
Downloadable files are a work in progress.