I printed it… and i did not see the same difference (that is very extreme xD) but BTW… that printing like a charm. Maybe as another said in comment (on printables or thingiverse) : i did know that i have this trouble before to fix it. That is probably my best upgrade of my SV08 (ratio cost/efficacity).
There’s an “extruder gear fix” that was designed by a woman on a Facebook group for this exact problem. I printed the most current version she posted on 11/11/24 and it worked great. I’m posting the link below for anyone who needs it. Works great!
That link is already posted above, but it doesn’t hurt anything to post in again. 
I did not see the link posted just a reference to something close to it by name. Or it’s just not showing up on my phone. Either way, it’s here for sure now. Edit: and I just looked again and now I see it…
Eh eh, at the same time, it deserves to be better known
I’m a bit late to the discussion but I ran in to the exact same issue and was gobsmacked about the poor engineering that allows the idler gear shaft to slip out of position. There are actually two holes for 2.5mm grub screws to fixate the gear on the shaft, but there are no screws in them.
As I happen to not have the matching screws lying around I turned to a pragmatic solution and printed a small part that will keep it in place. No disassembling (apart from the removal of the toolhead cover) or additional tools or screws needed. Find photos and .stp file attached, I hope it is helpful.
20250525_tensioner-clip_v2.stp (554,1 KB)
2 Likes