Offset Vslot idler pulley plate

thingiverse

[Update 2022-08-10] I was messing around trying to increase the strength and found the holes were quite close to a 2020 inline connector. I uploaded that here: https://www.thingiverse.com/thing:5450455 I am so grateful to dmatsumoto for the original offset mount! I assumed I was doing something wrong and gave up trying to figure out how to use the mounts for the pulley and motor without having the belts rub or only using a single row of fasteners. This is just a version for the idler pulley - all I did was to move the hole for the pulley up a row to be inline with the screws. This centers the pulley between the middle opening and top, allowing the belt to move without rubbing anywhere. I saw a bit of flex on mine (with a 3nm nema 23 under load) at 3mm thick, so I added a rib rather than make the entire thing thicker. The rib makes the plate non-reversible, so there are right and left versions as well as one without a rib. I did use PLA+ for this that has much more flex than PLA.