Sunlu E2 Dryer Internal Spool Holder

I had severe jamming issues when using my Sunlu E2 dryer and 3Kg spools. The spool get angled within 2 minutes of a print. The spool then jam and the printer start to air print or start to severely under extrude. So I decided to design a modular internal spool holder using 608Z bearings. I was able to solve my problem this way while using 3Kg spool. If it can help someone else, I'd be happy.

- Extremely sturdy.
- One plate to print all parts even on smaller 3D printers (250 X 250).
- Spool will remain centered and can't be pulled forward by hard to unroll filement such as engineering material.
- 4 bearings support to better distribute the weight of large 3kg spools.
- Large 50mm shaft to reduce spool movement when the filement is being pulled. A thin shaft allow the spool to swing.
- Shaft will remain centered (left-right) as it fits the dryer chamber width.