This is a yo-yo I made because I couldn't find any yo-yos with the basic shape of a Duncan Imperial with bearings and brake pads. I really like the feel of the imperial in my hand but I needed a yo-yo with better hardware for doing looping tricks. I was worried about the weight so I added some voids that are the right size for five pennies as weights. Please feel free to comment with suggestions.
I recommend raising this above the build plate and turning on supports. A raft may make it look and feel nicer but it is not required. Note: if you use a raft and Cura; Cura starts the first layer of the model at 1 and the layers that build up the raft are negative layers. These must be subtracted from the displayed layer in Cura to find the proper G-code layer.
Note: I use the Creawesome mod for Cura, the Creawesome mod makes the tolerances on the Ender 3 very tight, ~0.25 mm, so if you don't use this mod you may have to fiddle with some settings to make the tolerances more tight.
To insert the pennies you must find the layer just before the voids are closed off and insert these lines in the g-code at the end of that layer:
G1 X10.000 Y200.000 E0; This sticks the build plate out
;(IF YOU HAVE A SMALLER BUILD PLATE THAN 220X220 CHANGE THE NUMBER AFTER "Y" TO YOUR Y CAPACITY)
M1; User stop
M105; Return to current temp
Hardware required for the yo-yo
To join the two halves of the yo-yo you will need one M4 Hex Cap Screws 20 mm long, one M4 Nylon Lock Nuts, one size A yo-yo bearing, and one yo-yo string. If you want to print the yo-yo with the insert for the brake pad you will also need 2 yo-yo expert standard size brake pads. The bearing and brake pads are optional, but you should print the spool to replace the bearing and print the yo-yo with ridges instead of the groove for the brake pads.