EVA 3 GT1.5 belt remix
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This is a remix of the original Eva 3 belt tensioner, belt grabber, and front plate in order to work with a GT1.5 belt.
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Model information
- Source
- Printables
- Category
- Other Printer Parts & Upgrades
- License
- Creative Commons — Attribution — Noncommercial — Share Alike
Print it with at least 4 walls and 25% infill, preferably in ABS.
I'm using 26-tooth motor pulleys with 0.9° LDO-42STH48-2504MAC(F) motors. With this setup, the rotation distance for the A and B belt (X and Y) should be set to 39 in the printer.cfg.
1.5 × 21 = 31.5 (21T pulley)
1.5 × 26 = 39 (26T pulley)
I tensioned the belts to around 60 Hz over the full free belt length on a RatRig V-Core 3.1 300 mm, which equals to around 130 Hz over a 150 mm span. I'm still using smooth idlers on the toothed side of the belt. Switching to toothed idlers might improve performance further, but overall I'm satisfied with the results.
The comparison image shows the surface finish of the same model using a standard GT2 belt and the updated GT1.5 belt on my modified RatRig V-Core 3.1, alongside a Bambu Lab X1C.
If you try this remix, please share your experience, especially whether the GT1.5 belt helped reduce or eliminate VFAs.