Comments on: Flywheel turning hits a problem – 4 jaws to big! http://mikes-models.com/blog/index.php/2010/01/flywheel-turning-hits-a-problem-4-jaws-to-big/ A website for the novice and expert model engineer. Thu, 01 Mar 2012 21:18:38 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Mike Freeman http://mikes-models.com/blog/index.php/2010/01/flywheel-turning-hits-a-problem-4-jaws-to-big/comment-page-1/#comment-12270 Mike Freeman Wed, 01 Feb 2012 16:20:08 +0000 http://mikes-models.com/blog/?p=2158#comment-12270 Thank you but I don't have it come up the same. Have you tried it in Explorer? I use Firefox myself and its fine. Thank you but I don’t have it come up the same. Have you tried it in Explorer? I use Firefox myself and its fine.

]]> By: Ora Brymer http://mikes-models.com/blog/index.php/2010/01/flywheel-turning-hits-a-problem-4-jaws-to-big/comment-page-1/#comment-12110 Ora Brymer Fri, 27 Jan 2012 14:33:20 +0000 http://mikes-models.com/blog/?p=2158#comment-12110 Hello admin, I just wanted to give you a quick heads up that your Web address: <a href="http://mikes-models.com/blog/index.php/2010/01/flywheel-turning-hits-a-problem-4-jaws-to-big/" rel="nofollow">http://mikes-models.com/blog/index.php/2010/01/flywheel-turning-hits-a-problem-4-jaws-to-big/</a> is being flagged as a possibly malicious web page in my internet browser firefox. I'd highly suggest having someone look into it. You can certainly lose a lot of guests due to this issue. Best of Luck. Hello admin, I just wanted to give you a quick heads up that your Web address: http://mikes-models.com/blog/index.php/2010/01/flywheel-turning-hits-a-problem-4-jaws-to-big/ is being flagged as a possibly malicious web page in my internet browser firefox. I’d highly suggest having someone look into it. You can certainly lose a lot of guests due to this issue. Best of Luck.

]]> By: Dave H. http://mikes-models.com/blog/index.php/2010/01/flywheel-turning-hits-a-problem-4-jaws-to-big/comment-page-1/#comment-1088 Dave H. Fri, 26 Feb 2010 01:54:01 +0000 http://mikes-models.com/blog/?p=2158#comment-1088 Maybe a hollow aluminium stub mandrel to match the inside diameter (maybe 1/2 to 1 thou' interference fit), with a shoulder for the faced end, brass in the oven, ally in the freezer, pop together and allow temp's to equalise. That would leave the outer surface of the flywheel and the shoulder on the mandrel to check with the dti to true in the 4-jaw, then once you've finished (*Light* cuts!) either pop 'em back in the freezer or machine away most of the ally then dunk in strong caustic soda for a few hours? Might mean sacrificing a chunk of scrap ally, though.... It looks like there's not quite enough depth for an expanding stub mandrel, which was my first thought :( Maybe a hollow aluminium stub mandrel to match the inside diameter (maybe 1/2 to 1 thou’ interference fit), with a shoulder for the faced end, brass in the oven, ally in the freezer, pop together and allow temp’s to equalise. That would leave the outer surface of the flywheel and the shoulder on the mandrel to check with the dti to true in the 4-jaw, then once you’ve finished (*Light* cuts!) either pop ‘em back in the freezer or machine away most of the ally then dunk in strong caustic soda for a few hours? Might mean sacrificing a chunk of scrap ally, though…. It looks like there’s not quite enough depth for an expanding stub mandrel, which was my first thought :(

]]> By: Mike Freeman http://mikes-models.com/blog/index.php/2010/01/flywheel-turning-hits-a-problem-4-jaws-to-big/comment-page-1/#comment-1005 Mike Freeman Tue, 19 Jan 2010 18:40:50 +0000 http://mikes-models.com/blog/?p=2158#comment-1005 I can use a 3 jaw chuck as suggested, but the accuracy difference between 3 and 4 jaws is such that flywheel wobble is easier to create with three jaws, and I want wobble free flywheels! That's not to say I won't use the 3 jaw because the final turning will be made when the flywheels are mounted on a mandrel and turned between centres. I have yet to make my mind up as to the approach to take. Perhaps the first step will be to check the size the 3 jaw will take...... Mike I can use a 3 jaw chuck as suggested, but the accuracy difference between 3 and 4 jaws is such that flywheel wobble is easier to create with three jaws, and I want wobble free flywheels!

That’s not to say I won’t use the 3 jaw because the final turning will be made when the flywheels are mounted on a mandrel and turned between centres. I have yet to make my mind up as to the approach to take. Perhaps the first step will be to check the size the 3 jaw will take……

Mike

]]> By: Mike http://mikes-models.com/blog/index.php/2010/01/flywheel-turning-hits-a-problem-4-jaws-to-big/comment-page-1/#comment-1004 Mike Tue, 19 Jan 2010 11:41:21 +0000 http://mikes-models.com/blog/?p=2158#comment-1004 Why can't you use a 3-jaw to clamp on the inside diameter of the cavity? Why can’t you use a 3-jaw to clamp on the inside diameter of the cavity?

]]>