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looks cool as hell, but i think you need to go down a size on the holes. you can see where the far right hole has broken out.
 

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GTaholic
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Discussion Starter · #7 ·
It´s only prototypes, I will go down 0.3mm in hole size.
Thanks for all tips.

It´s fairly light, I have even lighter ones in 7075-T6 alu at home, approx 2.4 gr/pcs.

But I would not use alu ones as upper pulley, the stiffness may be not enough, I haven´t compared to carbon fiber ones.
 

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GTaholic
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Discussion Starter · #10 ·
It´s because I do prototypes, breaking new grounds for usability of components.
The bearings sure are tiny, they have to hold up or I use these pulleys as keyrings.
 
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