I modeled the Idler and Idler cap (from XL330 Frame and Idler Wheel 4pcs set), printed them and used on both Leader and Follower arm, it works just fine!
The extra screws that come with the XL440 can be used to screw the Idler and Idler cap on the XL330.
I modeled the Idler and Idler cap (from XL330 Frame and Idler Wheel 4pcs set), printed them and used on both Leader and Follower arm, it works just fine!
The extra screws that come with the XL440 can be used to screw the Idler and Idler cap on the XL330.
It reduced ~$24 of the overall robot price.