Interesting. That's not evident looking at the STLs; there's a wall at the end of the hole there. But I could see how that would make it more rigid.Quote
AndyCart
My design uses an M5 bolt through the hole and into a T nut in the tower to fix the top vertex to the tower.
So if I understand this correctly, you have two flanged bearings side-by-side, with the narrow parts together. This is where the belt sits. Is that right?Quote
AndyCart
This bolt also carries my two flanged 16mm bearings to form the top idler.
If that's the case, I might go back to M5 and see if I can find something flanged with bigger diameter.
So do you have any other hardware up there with the bearings, like a nut or spacer or something? Or do the bearings just wedge in without any extra space, with the whole thing being held by a T-nut?
Is there any way you could add pictures to your Thingiverse entry with some bottom-up images? I can only guess at what you've got going on up in there.
(Forgive me if this information is already somewhere within the earlier two iterations of the printer. It's hard to keep track of which parts of which printer made it to the next iteration and which didn't.)
And thanks for the quick feedback!
-Mason
P.S. While I'm at it, would it be worth making note on the BOM that the SCHS screws that you mill probably shouldn't be stainless steel? Not so magnetic, that stuff.