Not every ASM user is very intelligent... There are a lot of good guys there, but its mostly the elitists who think they're better than the rest of the community.
When you put an O pinion on a D shaft, chances are you are only getting 3 points of contact, and not a full round surface. The idea of a chemical bond is also unappealing to me.
My quietest setups are those that use SHS motors with SHS 12:1 and 13:1 gears, as well as Siegetek builds with 10:1 using Gen 2 bevel paired with a Tienly 30k with Siegetek pinion mounted. ASG 18k seems to be a decent motor, however the housing is slightly larger than a standard one and the motor seems to cause more whine, regardless of bevel height. I need to spend more time looking into the root cause of that.
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