OK, I'll not call this a "Tutorial" as this is only the 3rd yo-yo I've made, thus, I'm still learning
I used some "Quince" wood for this, I thought it was harder than it actually is, but the end result is still fairly good, I think.
I started by cutting two pieces of wood about 7 cm square by about 3 cm thick (2 3/4" x 1 1/4").
I marked the center of each piece and then I drilled a 35mm hole 10 mm deep
It is really important to get the depth of the hole just right, I drill a bit under and check, several times, if it is too deep you can fix it on the lathe, but it is a bother, I find it quicker to sneak up on it on the drill press.
I next test fit each piece, like I said, it is much easier to get it right here, than fix it later, IMHO.
Now I glue them in place, the instructions say that they are "Press fit" and if you need to glue them, well my drill bit is exactly 35mm and they are way too loose, so I glue them. I use the medium thickness CA glue, then a spritz of accelerant and wait for about 5 minutes and they are good to go
Here is a shot of the Yo-yo mandrel in the drill chuck (yes the drill chuck has a draw bar in it, to keep it from coming out). The mandrel is a must for doing these, but it is also cheap, maybe $8 I don't remember
OK, now I have one piece on the madrel with the tail stock up for support. The manrel is steel and the inserts are aluminium, so you have to go easy on roughing the squares out, as you CAN strip an insert DAMHIKT
Once round-ish, I change to a bowl gouge and make a nice smooth cut, this yo-yo is for my eldest daughter, so I made it a bit bigger as she has larger hands than her sister and cousin.
I then part it off to a bit over sized from what I want........
Do some shaping, to add some interest to it, but nothing to complex to replicate, as I have to make another one as close to the same as I can make it!
I sand from #120, #240, #320, then I put a good coat of sanding sealer on it, then I let that dry for about 5 minutes then I sand it with #400, again a coat of sanding sealer, dry then sand #600 and #800. I then use my stick of turners Carnuba wax on it, first buffing with a cloth, but then power buffing with a small buff in the drill.
here I've inserted the ballbearing shaft of the yo-yo.........