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Author Topic: Exactacated thumb mold  (Read 6569 times)

tgs300

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Exactacated thumb mold
« on: October 17, 2008, 05:48:18 AM »
When making a thumb mold, does the resulting insert have the pitches from the original thumbhole or must the pitches be drilled into the ball which will be getting the Exactacated thumb insert?
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Brickguy221

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Re: Exactacated thumb mold
« Reply #16 on: October 19, 2008, 11:48:12 PM »
MTD 300...Look at the mold on the right that Nick drew a circle around and then a line thru.   www.brunsnick.com/molds.jpg

That is how the mold came out of my ball and is how Duggan places my molds in the cylinder. Then she drills the hole in the ball 0-0 and the pitch is exactly the same as the pitch in the ball the mold was made from. Duggan doesn't intentionally put the mold in the cylinder in an angle. The way she makes the mold, it automatically enters the cylinder in an angle like that.

Now Nick does his like the middle drawing and in that case the hole in the ball must be drilled to the pitch you want the thumb to be.


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Edited on 10/19/2008 11:53 PM
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MTD300

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Re: Exactacated thumb mold
« Reply #17 on: October 20, 2008, 07:31:31 AM »
Yeah Brickguy that method will work also. Learn something new everyday

I have always lined up my mould as close to straight as possible then pitched the outside hole of my ball to the pitch the bowler requires. Then put the mould in. (same way as Nick)

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qstick777

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Re: Exactacated thumb mold
« Reply #18 on: October 20, 2008, 08:10:00 AM »
I don't have the Vise kit, but came up with something similar.  My experience has been exactly as Brickguy described - but I just attribute that to not having the "official" kit.

Without having the kit and being able to see it, I just don't understand how you get the top of mold to be dead center.

As Nick's picture shows, when the mold sits flat, it is actually angled.  I don't see how the mold fits in the cylinder and is able to be centered and sit straight up and down.
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tgs300

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Re: Exactacated thumb mold
« Reply #19 on: October 20, 2008, 10:00:40 AM »
Thanks to everyone for the excellent information and discussion.

My goal is to move from my current grip loc set up to a mold in all my equipment. I've already got the pitches drilled in the ball....so it sounds like when I make my insert I need to make sure the mold is centered in the cylinder.
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Brickguy221

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Re: Exactacated thumb mold
« Reply #20 on: October 20, 2008, 10:54:54 AM »
quote:
My goal is to move from my current grip loc set up to a mold in all my equipment. I've already got the pitches drilled in the ball....so it sounds like when I make my insert I need to make sure the mold is centered in the cylinder.
 


What I love about the molded thumb inserts is that you can drill the hole in the ball, insert the insert and go bowl with no adjustments needed such as sanding, beveling, and whatever to get the thumb to fit.
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EboHammer4ever

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Re: Exactacated thumb mold
« Reply #21 on: October 31, 2008, 02:15:31 PM »
I just had this same issue.  Made a mold of my friends thumb the other day.  His pitches are 1/16th right lateral and 1/4th reverse.  I drilled 2 balls with a 1 1/4th bit for the thumb mold so they would be ready when the mold is done the next day and I can make the insert and just install them and they are ready to go.  I drilled the ball with his current pitches (mentioned above) thinking thats what you do because I have made inserts for another friend, she has 1/8th right and an 1/8th forward and I have always got her's right.Get down to the lanes the next day and install the new mold in the cylinder and mix up some Wizard plug and proceed to make the inserts.  Go to install them into the ball and BAM!!, the backside of the insert is sticking up in the air while the front in flush.  Stick a pitch gauge in there and yup, 1/8th right and 1/2 reverse.  ARGH!!!  So I am going to drill a play ball he has at 0 and 0 and I bet it will work out just right.  

Just for reference, there were no instructions from Vise as to what pitches you are to drill this at in my kit by the way.

Roto4ever
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EboHammer4ever

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Re: Exactacated thumb mold
« Reply #22 on: November 05, 2008, 07:57:32 AM »
Just to follow up on my last post, drilled that play ball at 0 and 0 and installed his thumb mold and just what I thought, the pitches came out just right.  I am making him a new one using the 1 3/8th mold this time and see how it comes out.  I will let you guys know.

Roto4ever
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tgs300

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Re: Exactacated thumb mold
« Reply #23 on: November 05, 2008, 08:46:28 AM »
Roto4ever....I'll be interested in hearing the results of your test.

It would seem to me that there should be a way to do both...drill 0,0 and drill with pitch.

I know personally, I've got one great feeling thumb hole that I absolutely hate the way it's pitched. Being able to mold it and drill the pitches into the ball would be the best of both worlds for that situation.
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notsohotshot

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Re: Exactacated thumb mold
« Reply #24 on: November 19, 2008, 12:48:42 AM »
I have been making these things for years and I drill my pitches into the ball but I center my dummy into the sleeve although it will not always look like it is sitting straight on the bench. I make them for myself and several of my customers and the pitches always come out correctly.
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Gunny

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Re: Exactacated thumb mold
« Reply #25 on: November 19, 2008, 08:48:47 PM »
just out of curiousity, where can i get an exacticator kit?
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