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PostPosted: Wed Jun 04, 2014 8:34 am 
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I am trying to machine a new masthead sheave out of delrin for my older H16 (non comp tip) but I am seeing varying reports as to the dimensions and mine is so disintegrated that it is not measurable.

shadme indicates here (viewtopic.php?f=14&t=28129) that they are 4 7/8" diameter, 4 3/8" diameter in the groove, with the groove being 3/8" round. The whole sheave is 13/32" thick and has a 3/8" hole.

PurdueZach measures one here (viewtopic.php?f=14&t=46565) that has a 5" diameter, 4 1/2" diameter in the groove The whole sheave is 3/8" thick and has a 3/8" hole.

Which dimensions are most correct?
Thanks for any help you can offer.


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PostPosted: Wed Jun 04, 2014 10:09 am 
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Location: Indianapolis, IN
I may still have one extra. I was keeping it in case I ever need to replace my own. Let me go out and see.

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Zach


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PostPosted: Wed Jun 04, 2014 11:22 am 
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Location: Indianapolis, IN
Bingo Image

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Zach


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PostPosted: Wed Jun 04, 2014 2:33 pm 
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Awesome Zach! So how big is it?


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PostPosted: Wed Jun 04, 2014 2:35 pm 
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Do you just want this one? I can get you dimensions too if you want to still make one.

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Zach


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PostPosted: Wed Jun 04, 2014 2:42 pm 
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Thanks for the offer but I already have the delrin in the lathe so I would like have some solid numbers to finish it up. I am hoping the fresh delrin might last longer than the nylon or whatever the old one was made out of.


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PostPosted: Wed Jun 04, 2014 5:12 pm 
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Location: Oceanside, California
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Matt Miller
Director of Parts and Accessory Sales
Hobie Cat USA


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PostPosted: Wed Jun 04, 2014 6:20 pm 
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Now that's what I call some fantastic commitment to the customer!

Way to go above and beyond, Mr. Miller!


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PostPosted: Thu Jun 05, 2014 8:24 am 
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Matt!! Thank you thank you thank you! This is awesome and exactly what I needed. I see why there was some discrepancy in the measurement. I will share a picture once its been made.


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