Cheesy Holiday Mechanism

Just like an orrery, turn the wheels of the holiday season to see how everything works like a clock on this little desktop toy! :D

It took me several trials and errors to get the right spot between enough seasonal cheesiness and just the right excess of unnecessary mechanical complexity.

I designed the model to be assembled just by using filament pins, the theoretical diameter of each filament hole is 1.95mm which it worked fairly well using my good old i3 mk2.5s.

Here's a couple of videos of the working mechanism:

And a video that I edited to show the build process:

All parts were printed with PLA.

For the build instructions, see the attached PDF file. 

Print settings:

Preview	Name	Qty	Sugested Color	Infill	Resolution	Brim?	Supports	Comment
	Cam Track.3mf	1	Brown	20%	0.2	No	No	Adaptative cubic infill to save time
	Input carrier.3mf	1	Brown	20%	0.2	No	No
	Rudolph.3mf	1	Brown	20%	0.2	Yes	Yes
	Cookie.3mf	1	Brown/White	20%	0.2	Yes	Yes	Color change to white @ 8.20mm
	Tree.3mf	1	Green	20%	0.2	No	No	Adaptative cubic infill to save time
	Base Carrier.3mf	1	Green	20%	0.2	No	No	Adaptative cubic infill to save time
	Bevel-Spur Gear.3mf	1	Red	20%	0.2	No	No
	Drive Shaft Assy_1.3mf	1	Red	20%	0.2	No	No
	Drive Shaft Assy_2.3mf	1	Red	20%	0.2	No	No
	Drive Shaft Assy_3.3mf	1	Red	20%	0.2	No	No
	Idler Gear.3mf	1	Red	20%	0.2	No	No
	Input Bevel Gear.3mf	1	Red	20%	0.2	No	No
	Planet Gear.3mf	2	Red	20%	0.2	No	No
	Sled.3mf	1	Red	20%	0.2	Yes	Yes
	Star Gear.3mf	1	Red	20%	0.2	No	No
	Post	6	Red	50%	0.2	Yes	No	I printed those with 50% infill, the idea was to make them as heavy as possible but maybe would work just fine with 20%
	Santa.3mf	1	Red/White	20%	0.2	Yes	No	Color change to white @ 8.20mm
	Stocking.3mf	1	Red/White	20%	0.2	Yes	Yes	Color change to white @ 7.20mm
	Snowflake ring gear.3mf	1	White	20%	0.2	No	No
	Guide ring.3mf	1	White	20%	0.2	No	No
	Cane.3mf	1	White/Red	20%	0.2	Yes	Yes	Color change to red @ 7.20mm
	Bevel Cap.3mf	1	Yellow	20%	0.2	Yes	No
	Knob cap.3mf	1	Yellow	20%	0.2	Yes	No
	Knob.3mf	1	Yellow	20%	0.2	Yes	No
	Planet Cap.3mf	4	Yellow	20%	0.2	Yes	No
	Star base.3mf	1	Yellow	20%	0.2	Yes	No
	Star.3mf	1	Yellow	20%	0.2	Yes	No
	Bell.3mf	1	Yellow/Red	20%	0.2	Yes	Yes	Color change to red @ 9.20mm
	Filament 1.75mm	AR	Any					Used to fix parts

I also included some files with parts that can be printed as sets:

Preview	Name	Qty	Sugested Color	Infill	Resolution	Brim?	Supports	Comment
	CHM_GEAR_SET.3mf	1	Red	20%	0.2	No	No	Includes: Bevel-Spur Gear, Star Gear, Idler Gear, Input Bevel Gear, QTY 2 Planet Gear, Drive Shaft Assy_1/_2/_3
	CHM_YELLOW_SET_BRIM.3mf	1	Yellow	20%	0.2	Yes	No	Includes: 4X Planet Cap, Knob cap, Bevel Cap, Knob, Star base and Star
	CHM_BROWN_SET.3mf	1	Brown	20%	0.2	No	No	Includes: Cam Track, Input Carrier

 I tested on the slicer if every part fits on a MINI buildplate and in theory it fits… barely, the cam track and the carrier base fit, but there's almost no extra room, so I might change the design to be more MINI platform friendly.

EDIT 12/24/2023: It actually fits in a MINI buildplate as you can see in this lovely video by Prusa Research YouTube channel:

The model was made using Fusion 360 and I included the editable model. If you have any suggestion, doubt or comment please let me know.

Happy Holidays! :)