This design is a simple kitchen roll holder. there are many around but I could not find one that fit my needs. In particular I wanted one that was
- fairly easy to print
- not too many parts
- easy to fit together and operate
- that would accomodate different sizes of kitchen rolls
- roll cannot come out from the top
- can be held and transported hanging by the head (which should be fairly sizable)
- minimal post-processing
How it works: simply put the roll onto the shaft, slide the head into the shaft, rotate the head until it locks (try both directions, only one will work :)). The head is quite big so it's easy to rotate even with greasy hands, to transport to the table, and to hold while ripping a sheet :)
Printing tips:
- Make sure you take measures against warping, especially if you are going to use an open-frame printer, (glue, brim or even a raft) - the bottom has a very large surface area so warping is possible
- supports are not needed, and I actually advise against that (hard to remove in the shaft). rather use a decent number of bottom layers (at least 3, ideally 4) and then the print is done, take your clipper and clean up the fluffy bits until everything fits together :) this areas will never show so they do not need to be perfect, but functional
- I used the colors as you see in the picture because the inner part is invisible, so I used a cheap filament, while the show parts are printed in the beautiful (and more expensive) Prusament galaxy green. I did this with a multi-color printer, but it should be fairly easy and quick to do it manually.
other than that, use whatever settings work best for your filament, kinematically it's a very low stress print, but make sure you are melting quick enough in the bottom base, there is quite a bit of output needed! No need for extreme infils, I used 15% grid also because it looks good with a semi-transparent filament, but you could go up to 20% gyroid if you want better mechanical properties.
Happy printing!
Marco Ponzetti
