Hey guys, did one of these about 2 weeks ago, and shipped it off. Meant to take pics but forgot! Whoops!
Guy really liked it, so much so that he sent 2 more to do!!! This time I decided to document it so I could show all of you, I’m sure there’s some, “yoyo gearheads” that want to check it out!!
2 Old (2003??) Yoyojam Matrixxs. I brought them to 2013 standard playability by converting to a C bearing & adding silicone. The tough part was the need to add an acrylic ring due to the fact the existing oring/silicone groove starts at ~0.510" diameter, and the bearing is 0.500", and we need approx 0.010" clearance… So the the ring is machined & laminated in place to basically add material.
Check out that old bearing… 3/8" (0.375") Outerdiameter, vs the 0.500" of a C bearing
First step was to highwall it. There was an adjustable gap, the way it worked was the bearing was able to really sink into this side, to a recession depth of near 0.057" or so. I chopped off 0.040", the result is approx a 4.1mm gap.
As mentioned earlier, that ID of the silicone/oring groove isn’t thick enough to support a C bearing as is. More material is required. The work around is actually getting more material in there. To do that I’ll use some acrylic stock, cut some rings to size & glue them in, joining them in as part of the yoyo, and then be able to carry on about the mod