its noticeably smoother when printing. prints look better and its quieter even.

How did u print these blocks? The stl has a small 5 layer ledge on the bottom that won't lay flat so it screws up and that is the best way to print it. Not the sides otherwise it needs support or has poor fill in the rounds ?
Am I missing something ? I used the model linked on prior page

Would be .35mm wider in Diameter than recommended in this thread. I am measuring diameter of my Y rod at 6.04 to 6.12mm depending on where I measure it. I measured the diameter of the supposed 6mm bearings at 5.8mm. So if the 6.35mm bearings stay true to the pattern of being .2mm smaller than advertised like the 6mm bearings, maybe they will come out at 6.15mm and will only be slightly bigger than the 6.04 to 6.12mm rod?

What say you guys?

The problem is that they are 15mm wide instead of 13mm so the pillow block will need to be adjusted or redesigned. I would be willing to order these bigger bearings and give it a test run if someone here can modify the pillow block design to accomadate them.

MolecularConcept wrote:

i tried lightly sanding the tips ofthe rod. to no avail... did anyone try heating the bearings ? what temp,  how long?  i dont have anything small enough to sand the inside of the bearings.

Not sure what's up with the rod but I had the same issue, almost like it's not really 6mm but something in between that and 5/16 which I recall is the closest Imperial equivalent. There is a significant delta between the OD of the rod and the ID of the bearings, at least the ones I had on hand, so I would not try heating them to install. Once they cool it's possible that they might be so tight they won't want to turn or in a worst case the inner race may crack although I doubt it given how soft the metal in the rod is.

My solution, I put the rod in my metal lathe and turned the ends down until the bearings fit then cut inward to get to where I wanted to place the bearings. I used two, one on each end since turning the ends left the rod a bit too small for the bushings which I left in place because they didn't want to come out easily and I had enough aggravation getting the shaft out in the first place!

Same exact issue here, see other thread. I don't have a lathe though nor do I know anyone that has one. Any ideas? I need new bearings and a new Y rod because I destroyed the ones I had.

i tried lightly sanding the tips ofthe rod. to no avail... did anyone try heating the bearings ? what temp,  how long?  i dont have anything small enough to sand the inside of the bearings.

Not sure what's up with the rod but I had the same issue, almost like it's not really 6mm but something in between that and 5/16 which I recall is the closest Imperial equivalent. There is a significant delta between the OD of the rod and the ID of the bearings, at least the ones I had on hand, so I would not try heating them to install. Once they cool it's possible that they might be so tight they won't want to turn or in a worst case the inner race may crack although I doubt it given how soft the metal in the rod is.

My solution, I put the rod in my metal lathe and turned the ends down until the bearings fit then cut inward to get to where I wanted to place the bearings. I used two, one on each end since turning the ends left the rod a bit too small for the bushings which I left in place because they didn't want to come out easily and I had enough aggravation getting the shaft out in the first place!