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Author Topic: Will a smallish drill-angle produce a CG-Axis like motion?  (Read 7450 times)

Bavant

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Will a smallish drill-angle produce a CG-Axis like motion?
« on: March 07, 2020, 12:42:21 PM »
Interested in replicating the arcing reaction in 3 balls each drilled CG-Axis w/balance hole on axis.

Tried plugging the hole on one of the balls for the rule change. The ball is still quite useful but lost some continuation and the arcing motion, reaction now is “almost” like a pin-axis drilling. Other than surface adjustments the only thing I can think of trying on this ball is drilling the thumb-hole deeper. I like my solid (Forest-Green Quantum) so much I’m leaning toward not plugging it until I’m more confident I won’t ruin it.

Saw an interesting YouTube ball video with 2 bowlers where the lefty bowler used a small drill-angle  (20x4.75x55) on asym balls https://www.youtube.com/watch?v=odCg5__tMEc called it forward roll layout.

Anyone have experience or thoughts about a smallish drill-angle producing a CG-Axis like motion?
« Last Edit: March 07, 2020, 06:54:14 PM by Bavant »

 

Jesse James

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Re: Will a smallish drill-angle produce a CG-Axis like motion?
« Reply #1 on: March 07, 2020, 04:07:06 PM »
According to Mo Pinel, with the new USBC rules your drill basic drill angles are irrelevant now! Check out some of his more recent videos on You Tube!
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Bavant

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Re: Will a smallish drill-angle produce a CG-Axis like motion?
« Reply #2 on: March 07, 2020, 06:15:04 PM »
According to Mo Pinel, with the new USBC rules your drill basic drill angles are irrelevant now! Check out some of his more recent videos on You Tube!

Thanks for the reply. Perhaps I'm wrong but I understand Mo Pinel's latest guidance to mean that drill angles are only irrelevant in symmetrical balls but remain relevant in asymmetrical balls.

If I'm not off base then my question remains unanswered.

Adrenaline

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Re: Will a smallish drill-angle produce a CG-Axis like motion?
« Reply #3 on: March 08, 2020, 03:55:47 AM »
drill angles are only irrelevant in symmetrical balls but remain relevant in asymmetrical balls.

This is correct.

Small drill angles place the MB of the ball near your VAL.
Ball motion or shape is moreso effected by the core of the ball.  The Layout matches up the bowler to the ball, as the goal is for the ball to effectively go through all 3 phases of motion at the right time, to create the highest carry possible.

With the MB near/on the VAL, the axis migration happens earlier and sooner.  The sooner the axis migrates across the Pin to Spin line (Pin to MB) the sooner the core revs up.  By forcing this to occur as soon as possible you create a stronger and earlier hooking ball, which is rounder and more arc like motion, as it depletes energy sooner, resulting is less right to left movement when the ball encounters friction down lane.
The later this happen, (MB in the thumbhole appears to be max before experiencing diminishing returns IMO) the longer/sharper the reaction, because the axis migration
 doesn't cross the pin to spin line until much later.

I'm not familiar with older layout terms, but if CG Axis is... what it sounds like (CG on your PAP?) then I would tell you that, CG doesn't matter, and it should have nothing to do with how you layout the ball.

Pick a Pin to Pap distance that matches your tilt so that your tilt burns at the proper rate.
Pick a VAL angle based on how quickly you want the ball to respond to friction.
Then pick a Drill angle based on how much length you want to see out of the first transition.

Bigger drill angles correlate to longer PAP to PSA distances in the Storm VLS system. (More length, more skid, more energy retention)  They are accomplishing the same thing.

Bavant

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Re: Will a smallish drill-angle produce a CG-Axis like motion?
« Reply #4 on: March 08, 2020, 07:54:30 AM »
Thanks Adrenaline.
 
My pap is right 5” up 13/16”. So far, I’ve only drilled symmetric balls with this layout I’m calling cg-axis. CG/balance hole is always on my axis and PIN is in ring finger or on a line from PAP to the ring finger (3.5-4.5”) thus implied MB is well past the VAL. Estimated typical dual angle about 0x4.5x45. When I can use my Forest-Green Quantum it makes the lanes look easy also I can trust it to always arc and still carry well even when I have to step inside. This is what I’m hoping to duplicate.

Your reply reinforces how I was already thinking. I’ll sleep on it a bit more but I’m leaning toward trying something like 20x4.5x50 in an asymmetric.

JazlarVonSteich

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Re: Will a smallish drill-angle produce a CG-Axis like motion?
« Reply #5 on: March 09, 2020, 11:33:22 AM »
Thanks Adrenaline.
 
My pap is right 5” up 13/16”. So far, I’ve only drilled symmetric balls with this layout I’m calling cg-axis. CG/balance hole is always on my axis and PIN is in ring finger or on a line from PAP to the ring finger (3.5-4.5”) thus implied MB is well past the VAL. Estimated typical dual angle about 0x4.5x45. When I can use my Forest-Green Quantum it makes the lanes look easy also I can trust it to always arc and still carry well even when I have to step inside. This is what I’m hoping to duplicate.

Your reply reinforces how I was already thinking. I’ll sleep on it a bit more but I’m leaning toward trying something like 20x4.5x50 in an asymmetric.

If you have a thumb hole, your MB/PSA will be in or around your thumb. The balance hole may pull it away some, but it's not going to be well past your VAL. This is with regards to your symmetric balls.

Juggernaut

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Re: Will a smallish drill-angle produce a CG-Axis like motion?
« Reply #6 on: March 09, 2020, 09:26:10 PM »
Here is something you might look into.

 Find the ball with the RG and diff #’s you’re looking for, and get you shop to order you one with really low topweight. That way, when you put the cg on your pap, it wont need a hole there to make it “legal”.

You’ll still have some side weight, but as long as it is only an ounce or so, it might work.
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Bavant

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Re: Will a smallish drill-angle produce a CG-Axis like motion?
« Reply #7 on: March 11, 2020, 05:50:33 AM »
Here is something you might look into.

 Find the ball with the RG and diff #’s you’re looking for, and get you shop to order you one with really low topweight. That way, when you put the cg on your pap, it wont need a hole there to make it “legal”.

You’ll still have some side weight, but as long as it is only an ounce or so, it might work.

Thanks Juggernaut, interesting idea I hadn't really considered. Sounds like a possible solution.

TWOHAND834

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Re: Will a smallish drill-angle produce a CG-Axis like motion?
« Reply #8 on: March 11, 2020, 11:45:24 AM »
https://www.youtube.com/watch?v=mo4Az5ZNAL0

Watch this.  Towards the end of the video it has a layout similar to what you are describing and the ball motion.
Steven Vance
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Former Classic Products Assistant Manager

Bavant

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Re: Will a smallish drill-angle produce a CG-Axis like motion?
« Reply #9 on: March 11, 2020, 02:49:01 PM »
https://www.youtube.com/watch?v=mo4Az5ZNAL0

Watch this.  Towards the end of the video it has a layout similar to what you are describing and the ball motion.

Thanks TWOHAND834.

In an earlier post I mentioned something like 20x4.5x50. This video sure looks like it nails the motion I'm hoping to replicate. Getting excited about this, must calm down now, lol.

You guys are awesome!!!

TWOHAND834

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Re: Will a smallish drill-angle produce a CG-Axis like motion?
« Reply #10 on: March 11, 2020, 03:23:34 PM »
https://www.youtube.com/watch?v=mo4Az5ZNAL0

Watch this.  Towards the end of the video it has a layout similar to what you are describing and the ball motion.

Thanks TWOHAND834.

In an earlier post I mentioned something like 20x4.5x50. This video sure looks like it nails the motion I'm hoping to replicate. Getting excited about this, must calm down now, lol.

You guys are awesome!!!


No problem.  Remember though.  This layout may only be legal once August 1st rolls around unless you can find a ball with a 1-2 inch pin and low top weight which may be really hard to find.  Good luck!
Steven Vance
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Former Classic Products Assistant Manager

MI 2 AZ

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Re: Will a smallish drill-angle produce a CG-Axis like motion?
« Reply #11 on: March 11, 2020, 06:27:00 PM »
https://www.youtube.com/watch?v=mo4Az5ZNAL0

Watch this.  Towards the end of the video it has a layout similar to what you are describing and the ball motion.




Thanks TWOHAND834.

In an earlier post I mentioned something like 20x4.5x50. This video sure looks like it nails the motion I'm hoping to replicate. Getting excited about this, must calm down now, lol.

You guys are awesome!!!


No problem.  Remember though.  This layout may only be legal once August 1st rolls around unless you can find a ball with a 1-2 inch pin and low top weight which may be really hard to find.  Good luck!



As of 1 Jan 2020, you can have 3 oz all around static weights.  The elimination of weight holes goes into effect 1 Aug 2020.

"The specification eliminating the use of balance holes will go into effect Aug. 1, 2020. Balance holes, also known as weight holes, are meant to correct static imbalance in bowling balls, but more recently have been used to change the design intent of balls. By allowing bowling balls (for balls weighing more than 10 pounds) to have up to three ounces of static side, thumb and finger weight – which is up from one ounce – and up to three ounces of top weight, there no longer will be the need for a balance hole to correct static imbalance in the typical ball layout.

The specification increases in static weights take effect Jan. 1, 2020, which will allow bowlers the opportunity to plug balance holes prior to the elimination of balance holes starting Aug. 1, 2020. "



https://bowl.com/News/NewsDetails.aspx?id=23622331019


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Cartybowls

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Re: Will a smallish drill-angle produce a CG-Axis like motion?
« Reply #12 on: March 12, 2020, 07:47:24 AM »
Thanks Adrenaline.
 
My pap is right 5” up 13/16”. So far, I’ve only drilled symmetric balls with this layout I’m calling cg-axis. CG/balance hole is always on my axis and PIN is in ring finger or on a line from PAP to the ring finger (3.5-4.5”)

Sounds like old Axis-Leverage drilling concept.
CG on PAP
Place pin halfway between PAP and ring finger.
Modern variations feature pin on same line as PAP to Ring Finger, so obviously not true leverage.
This is a drilling I use often to get my balls to roll a little earlier to avoid the old skid/flip 4 through the face reaction.

JazlarVonSteich

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Re: Will a smallish drill-angle produce a CG-Axis like motion?
« Reply #13 on: March 12, 2020, 11:38:14 AM »
https://www.youtube.com/watch?v=mo4Az5ZNAL0

Watch this.  Towards the end of the video it has a layout similar to what you are describing and the ball motion.




Thanks TWOHAND834.

In an earlier post I mentioned something like 20x4.5x50. This video sure looks like it nails the motion I'm hoping to replicate. Getting excited about this, must calm down now, lol.

You guys are awesome!!!


No problem.  Remember though.  This layout may only be legal once August 1st rolls around unless you can find a ball with a 1-2 inch pin and low top weight which may be really hard to find.  Good luck!



As of 1 Jan 2020, you can have 3 oz all around static weights.  The elimination of weight holes goes into effect 1 Aug 2020.

"The specification eliminating the use of balance holes will go into effect Aug. 1, 2020. Balance holes, also known as weight holes, are meant to correct static imbalance in bowling balls, but more recently have been used to change the design intent of balls. By allowing bowling balls (for balls weighing more than 10 pounds) to have up to three ounces of static side, thumb and finger weight – which is up from one ounce – and up to three ounces of top weight, there no longer will be the need for a balance hole to correct static imbalance in the typical ball layout.

The specification increases in static weights take effect Jan. 1, 2020, which will allow bowlers the opportunity to plug balance holes prior to the elimination of balance holes starting Aug. 1, 2020. "



https://bowl.com/News/NewsDetails.aspx?id=23622331019


.

This was actually updated and the change has been in effect since August 2018.
https://www.bowl.com/News/NewsDetails.aspx?id=23622331380

"Starting Aug. 1, 2018, bowling balls weighing more than 10 pounds will be allowed to have up to three ounces of static side, thumb or finger weight and up to three ounces of top or bottom weight, provided the ball does not have a balance hole."

I stopped using weight holes back then and went with the new rule specs. Even being in Canada where CTF was just sitting on the fence at the time.

Bavant

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Re: Will a smallish drill-angle produce a CG-Axis like motion?
« Reply #14 on: March 12, 2020, 11:42:22 AM »
Thanks Adrenaline.
 
My pap is right 5” up 13/16”. So far, I’ve only drilled symmetric balls with this layout I’m calling cg-axis. CG/balance hole is always on my axis and PIN is in ring finger or on a line from PAP to the ring finger (3.5-4.5”)

Sounds like old Axis-Leverage drilling concept.
CG on PAP
Place pin halfway between PAP and ring finger.
Modern variations feature pin on same line as PAP to Ring Finger, so obviously not true leverage.
This is a drilling I use often to get my balls to roll a little earlier to avoid the old skid/flip 4 through the face reaction.


Right you are Cartybowls.  Occasionally I can't use the layout but has worked great for me on a number of conditions, one of my favorites.