Roomba S9+ Brush Rollers - Remix

I love the original and it's nearly perfect, but my dogs' hair was burning up the tiny bearings about once a month. I redesigned the end to use 2 larger bearings (13mmx6mmx5mm) and the hex-end uses a 6mm shaft to go into the larger bearings. This creates nearly 0 space for the hair to get in and bind id up and create a heat issue. This also removes the need for the round bar in the original, so any cost increase is offset by those savings. I printed mine in PA for the heat resistance and durability.

When printing with PA the bed is so warm that brim isn't needed, even for the taller rollers. If you choose to use a brim, it will make cleaning out the slots for the brushes a real PITA.

Follow the original instructions except for the round rod. - https://www.thingiverse.com/thing:6831319

Bearings I used - https://www.amazon.com/dp/B0CGX88BFK?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1
Square Bar (key stock) I used - https://www.amazon.com/dp/B0DTKJ2PRM?ref=ppx_yo2ov_dt_b_fed_asin_title&th=