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View Full Version : 30-degree rule angle templates for hand training



dr_dave
05-29-2007, 11:01 AM
FYI, I just posted a set of angle templates in the instructor and student resources section of my website (http://www.engr.colostate.edu/~dga/pool/resources/index.html) to help with learning how to use the 30-degree rule to predict cue ball motion for roll shots. The templates can be used to help you train and calibrate your hand peace-sign (see my April '04 and June '05 articles (http://www.engr.colostate.edu/~dga/pool/bd_articles/index.html)). Here's a direct link (http://www.engr.colostate.edu/~dga/pool/resources/30-degree-rule_angle_templates.pdf) to the templates. For more information, see the links under "30 degree rule" here (http://www.engr.colostate.edu/~dga/pool/threads.html).

I hope you find this stuff useful,
Dave

slow_roller
05-31-2007, 11:09 AM
I very much appreciate this and your many other contributions, Dr. D.

dr_dave
05-31-2007, 11:15 AM
<blockquote><font class="small">Quote slow_roller:</font><hr> I very much appreciate this and your many other contributions, Dr. D. <hr /></blockquote>You are very welcome. If you are true to your user name "slow_roller," the 30-degree rule probably applies to almost every shot you take.

Regards,
Dave

wolfdancer
05-31-2007, 12:03 PM
Good stuff, Dr.D.
I settled a minor disagreement that I had with a certified BCA
instructor, over the 30' rule, by quoting from your site.

dr_dave
05-31-2007, 12:23 PM
<blockquote><font class="small">Quote wolfdancer:</font><hr> Good stuff, Dr.D.
I settled a minor disagreement that I had with a certified BCA
instructor, over the 30' rule, by quoting from your site.<hr /></blockquote>Now I'm curious. Are you willing to share a description of the disagreement and the resolution?

Thanks,
Dave

wolfdancer
05-31-2007, 01:19 PM
I think it just had to do with terminology...mixing up the tangent line, or 90' ...on her part
She's a good instructor though, been doing it for some time now

TipMan
06-20-2007, 08:45 PM
Hello Dr. Dave - I want to chime in with the graditude group also - I purchased your book and consider it 1 of the 2 best purchases I have made to date as far as improving my game and I can tell you that over the years I (like most players) have spent plenty trying to make even the smallest improvement. tip o the hat to ya!

DeadCrab
06-21-2007, 06:45 AM
It is easy to get confused because for stun shots, the 90 degree cue ball deflection is relative to the IMPACT line, and for the 30 degree rule (rolling cue ball) is is relative to the AIMING line.





<blockquote><font class="small">Quote wolfdancer:</font><hr> I think it just had to do with terminology...mixing up the tangent line, or 90' ...on her part
She's a good instructor though, been doing it for some time now <hr /></blockquote>

dr_dave
06-22-2007, 10:01 AM
<blockquote><font class="small">Quote TipMan:</font><hr> Hello Dr. Dave - I want to chime in with the graditude group also - I purchased your book and consider it 1 of the 2 best purchases I have made to date as far as improving my game and I can tell you that over the years I (like most players) have spent plenty trying to make even the smallest improvement. tip o the hat to ya! <hr /></blockquote>Thanks for the nice message. I'm glad you've found my stuff useful. Please help spread the word.

Regards,
Dave