Hi Paul,

 you think ? As you can see the ring is retained by four roll pins, is
 this a good idea ?

 cheers Chris Hoskins.

 The role pins are a good idea. They act like 3 keyways. At that
 radius the load is low. This was back in the days when people were
 lucky to get 150 HP.

 Paul Lamar

Hi Paul,
how do 4 roll pins act like 3 keyways?
I think the 6 or 8 tapped short screws around the peripheral are a much
 better idea, especially when the ring gear is a snug fit in the housing.
Dave Mccandless in Perth


Sorry Dave! 4 keyways.  I had been working my butt off getting this RX8
water block so
the machinist is happy :-) The weight is down to .65 pound.

True the extended point set screws would work good as well.
This Ross design is 47 years old. Long before  the extended point
set screw was invented.


Paul Lamar

Paul,
Does that indicate you have enough interested customers to
build a batch of the RX8 water block ??................

Kelly Troyer


Well I think so. The problem we are running into (I think) is the lack of 5 axis
NC mill software and the skill of the 5 axis NC mill operator (I think :-))

This is a tough job.

Paul Lamar

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