Sent: Thursday, January 29, 2009 3:59 PM
Subject: [FlyRotary] reverse engineering
I am designing some parts that must fit the drive pulley hub tightly. my question is, since I've never done this before, involves measuring the existing pulley. can I assume that measurements are typically even numbers, and that a hole diameter isn't 49.12mm for instance? I can fit drill bits thru the bolt holes and drive pins to get accurate measurements there. I discovered that, indeed, the bolt holes aren't at 90 degrees, but appear to be at 85 and 180 degrees, which means the reluctor wheel only fits one way. I located the holes by measuring the distance between adjacent holes. again, can I assume an offset of an even 5 degrees? I am using some electronic calipers from harbor freight. do you find these accurate enough?
kevin
Keven,
The calipers are fine.
I am waiting for the other shoe to fall.....................
What are you designing?
Lynn E. Hanover
From the Southern
Command in Zephyrhills
Florida
Clear and 73 today.
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