3D printing: a moving object in one go

It stays together – and would have to be broken to get it apart – because the gears are all double-helical types (actually herringbone gears) – and I thank Wise Mr Kurt of this parish for helping me with this nomenclature – and, if you scroll down this Wikipedia link, you will discover why the Citroen logo is as it is.

It was printed on a raft, which peeled off perfectly (whew). The planet gears were each initially just stuck to the annulus, but snapped off with minor finger wiggling, and there is no notchy feeling to suggest there are substantial substantial bond remnants. It spun without any force, from he moment the last planet was unstuck.

Guiltily, I cannot put the Thingiverse link here right now because I have left the details at home.

As I remember, the original (which is suspect is this thing from Emmett Lalish, who appears to be a total design star) was designed to be used as a 3D printable bearing, and only later did someone turn it into an objet d’art by adding the outside bumps.

And while I am thanking folk, thanks to Toria at EW Towers for her camera work and video editing (while the hand model should be sacked with immediate effect….)

I also have a thanks here for kelokera, for Hero Me, a very nice way to add a cooling fan to certain Creality 3D printers – and to MediaMan for enthusiastically honing the initial concept.

I used a single 5015 blower fan version of MediaMan’s shrouds, made in PETg. .

As I didn’t have a cooling fan at the time (but did stand a USB fan next to the printing bed), it came out as a real mess.
However, with a lot of cutting, then gluing with silicone RTV, it has been functional enough to make a huge difference to the prints – and I must use it to print its own replacement (which sound slightly sinister?).

BTW, if I had the CAD skills, I would print MediaMan’s double 5015 version, but first remix it to point the left hand blower to face outwards (the port would be at the rear underneath, for those who can never get enough detail).