buffer-bearing-insert.stl - end snaps off

[geoffrey-young]

buffer-bearing-insert.stl - end snaps off

[whi-tw]

I think I've got a solution.

The existing part looks like this when put together - note the space between buffer-screen-a and buffer-bearing-insert inside the bearing:

My solution is to make buffer-bearing-insert longer, meaning that it butts up against buffer-screen-a, so the two parts clamp down against each other when the M3 screw is tightened:

I've modeled this, and the .stl and .step are available here: longer-buffer-bearing-insert.zip (onshape project).

[geoffrey-young]

hi :)

it’s pretty simple to make the bearing insert longer. in my own setup there is no space, so maybe you have different sized bearings? can you provide some measurements of the bearings, and maybe some images of the bearing in the wheel?

[whi-tw]

It’s a 608ZZ bearing - I’ll send a picture when I’m next by the printer!It looks exactly like the cross section in the image though. I bought the bearings for the ERCF buffers, and thought they’d be the same ones for this - I believe you said it’s the same wheel, just with a hole bored through for loading (amazing idea btw - works super well!)On 22 Feb 2023, at 04:00, Geoffrey Young ***@***.***> wrote: hi :) it’s pretty simple to make the bearing insert longer. in my own setup there is no space, so maybe you have different sized bearings? can you provide some measurements of the bearings, and maybe some images of the bearing in the wheel? —Reply to this email directly, view it on GitHub, or unsubscribe.You are receiving this because you authored the thread.Message ID: ***@***.***>

[geoffrey-young]

ok, try the m5-bearing branch and buffer-screen-b-m5.stl. I'm not sure how standard m5x12 button head screws are, but if you have any sitting around this setup should be a bit stronger. let me know how it works out :)

[whi-tw]

Sorry it's taken so long to get back to you.

what kind of bearing are you using? I'd assume they are flush with the flat parts of the filament walls like mine are?

I can't see how there could possibly be no space between the bearings, unless your bearings are ~5mm thick? AFAIK 608 bearings are 7mm thick as standard, so surely there must be a gap?

[geoffrey-young]

fixed. thanks!