effects of spin time on ball motion
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effects of spin time on ball motion
I was inquiring on the effects of spin time on ball motion, does a lower spin time cause the ball to stand up easier or does it help for more continuation? I guess I'm trying to understand the effect this variable has on ball motion. I assume lower spin times shorten the hook phase, and cause the ball to have a quicker reaction to friction, correct me if I'm wrong.
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Re: effects of spin time on ball motion
Correct, spin time is a numerical representation of the length of the hook zone.
Lower spin times (less than 5) mean a very abrupt reaction to friction.
Spin times over 7 typically are more lopey and indicative of either a symmetrical core and/or a long VAL angle.
Lower spin times (less than 5) mean a very abrupt reaction to friction.
Spin times over 7 typically are more lopey and indicative of either a symmetrical core and/or a long VAL angle.
Re: effects of spin time on ball motion
Thanks for the reply, I guess what I'm trying to gather is which spin time (over/under 7 sec) causes the ball to stand up (hook stop) or continue motion.
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Re: effects of spin time on ball motion
Higher spin time means the length of the hook zone is longer, and will take longer to hit the roll phase than a lower spin time ball.
Skid-Hook-Roll
Reference: http://wiki.bowlingchat.net/wiki/index. ... all_Motion
Skid-Hook-Roll
Reference: http://wiki.bowlingchat.net/wiki/index. ... all_Motion
Re: effects of spin time on ball motion
Ahh, thank you Megamav, definitely clears up my mental picture.
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Re: effects of spin time on ball motion
If you search for "spin time" and look for things posted by Megamav, you'll find some great info.
Here is one right here from a thread posted by GBuck called "Correct 4-ball Arsenal":
Here is one right here from a thread posted by GBuck called "Correct 4-ball Arsenal":
I would love to see what the spin times on my current arsenal are to get an idea of what my target spin times would be.I am also a 4, sometimes closer to 3.5.
I am going to go a little against the grain on this one.
I personally like to pair my equipment up, mostly because I wont make more than 1 ball change per night.
This is a lineup based on my experiences of being speed dominant for the past 2 years.
I have found myself basing reaction on spin time and friction amount, so I will do so here as well.
#1 - High Surface & Fast Engine - Asymmetrical - DestroyR - You've got this one right, a ball you'll bring when the lane has a volume of oil on it, you're not comfortable using your benchmark ball on. Target spin time - 4.5 Seconds - Double Thumb or Deep P3 may be needed.
My Ball: Double Thumbed LevRG Response @ 1500
#2 - Medium High Surface Blender - Symmetrical or Asymmetrical under .008 Intermediate Differential - .025 to .035 Total Differential - I've found when my #1 is just revving up too hard and too early, I want something with about the same amount of surface, maybe a little less and a slower spin time because the backends are flying. Target spin time - 6.0 Seconds - Strong Layout Again - Will get you that in between symmetric and asymmetric spin time.
My Ball: Double Thumbed Visionary Ogre Particle @ 1000
#3 - Benchmark Asymmetric - Mania - Personally I like my benchmark as an asymmetric being speed dominant. You could argue #2 should be your benchmark ball being the blender, but I have a tendency to reach for the top 2, and a stronger layout on #2 wouldnt make it a benchmark - Target Spin Time - 5.2 Seconds
My Ball: 55 x 4 x 35 Awesome Finish @ 1500
#4 - Weaker Symmetric - Slingshot - You win here on this one, for truly dry conditions, add 10 to your VAL angle. Knock the polish off @ 2000. Target Spin Time - 7-8 Seconds.
My Ball: Legends & Lane Masters - Terminator Rebellion - 2.75" x 45
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Re: effects of spin time on ball motion
Okay I'm going to expose my stupidity here....what the heck is "spin time"? At first read I thought it meant the amount of time on the lane that ball is revving before succumbing to friction & entering the roll phase, but I see you referring to "7-8 seconds" of spin time. From the time the ball leaves the hand until it hits the deck is only 2-3 seconds, so is spin time a theoretical number?
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Re: effects of spin time on ball motion
Read this..junebugfan wrote:Okay I'm going to expose my stupidity here....what the heck is "spin time"? At first read I thought it meant the amount of time on the lane that ball is revving before succumbing to friction & entering the roll phase, but I see you referring to "7-8 seconds" of spin time. From the time the ball leaves the hand until it hits the deck is only 2-3 seconds, so is spin time a theoretical number?
viewtopic.php?f=13&t=1137&p=9659&hilit= ... time#p9659" onclick="window.open(this.href);return false;
I know there are other threads that explain how to calculate spin time but I have somewhere to be in 20 minutes. There are youtube videos as well. I looked in the wiki but couldnt find anything quickly about spin time. Good luck and hope that helps some before others chime in.
[youtube][/youtube]
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Re: effects of spin time on ball motion
Thank you sir. I now understand that it is something best left to my driller instead of concerning myself with it LOL