Hi Tim First time poster but I've enjoyed reading all of the posts since being allow to and thank you for that. The Ornamental turners frequently substitute a pen for the cutter and a paper holder in place of the material..Provides an accurate, cheep look. I realize ornamental lathes are more accurate than a legacy so maybe substitute a lite cardboard for the paper and find a proper sized pen to fit the router chuck. Cheers Tom Dotta
On Thu, Jul 26, 2012 at 10:48 PM, Tim Krause <artmarb...@comcast.net> wrote: > ** > Hello All, > > I had a crazy idea that a continues single start spiral can be made on the > rotary table. The goal is to get the pitch right on the x-axis. I started > looking into the geometry required with a 1/2" cove bit. It looks like a > spacing of .375" would do the job. In other words, the x-axis would move > 3/8" with each rotation of the rotary table. I think this would create a > spiral pattern but I'm not sure. Maybe the pitch needs to decrease as it > get closer to the center? > > Then I started to consider the problem a little further. It's not quite > that easy. You see, the problem is my pitch is right, but I did not take > into consideration the spindle turns 8 times to make the rotary table turn > once. So, I really need to take that .375" pitch and divide it by 8. The > new pitch number that I need is actually .046". That way the x axis > travels the .375" per rotation of the rotary table ( 8 x .046 = .375 ). > > Now, I can think of two ways to get the pitch so that's not my concern. > The real concern is if I've come up with the right pitch in the first place > and if a fixed width would even work. > > Any thoughts would be appreciated. > > -Tim > > > -- > You received this message because you are subscribed to the Google Groups > "Legacy Ornamental Mills" group. > To post to this group, send email to > legacy-ornamental-mills@googlegroups.com. > To unsubscribe from this group, send email to > legacy-ornamental-mills+unsubscr...@googlegroups.com. > For more options, visit this group at > http://groups.google.com/group/legacy-ornamental-mills?hl=en. > -- You received this message because you are subscribed to the Google Groups "Legacy Ornamental Mills" group. To post to this group, send email to legacy-ornamental-mills@googlegroups.com. To unsubscribe from this group, send email to legacy-ornamental-mills+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/legacy-ornamental-mills?hl=en.
