No pictures. They were on eBay. Looked fairly simple, just a hefty slide
mounted between the head and where it attaches to the nodding joint. Would
certainly require less power than using the knee for the CNC Z axis.
On Thu, 7/11/13, Stuart Stevenson wrote:
Subject: Re: [Emc-users] Buying
Sweet - I've never seen one. Do you have a picture?
On Jul 11, 2013 1:25 AM, "Gregg Eshelman" wrote:
> I've seen pics of a couple of Bridgeport style CNC mills where the Z axis
> is a slide inserted between the head and the turret so the entire head
> moves up and down. That can have greater trav
I've seen pics of a couple of Bridgeport style CNC mills where the Z axis is a
slide inserted between the head and the turret so the entire head moves up and
down. That can have greater travel than moving the quill and the head retains
all its manual functions.
-
On Wed, Jul 10, 2013 at 11:59 AM, Ron Bean
wrote:
> I've mentioned before that a friend has a Bridgeport with an old 2-axis
> CNC conversion, which he'd like to upgrade to a modern 3-axis system.
>
> For various reasons, he'd like to power the knee rather than the quill
> (I know there are pros an
On 10 July 2013 16:59, Ron Bean wrote:
> There seem to be some reasonable deals on Ebay, but how big does the
> servo need to be?
The much smaller knee on my Harrison could not be moved at all by my
7Nm servos with the original leadscrew. It works OK with a ballscrew.
That is with 4:1 belt drive
I've mentioned before that a friend has a Bridgeport with an old 2-axis
CNC conversion, which he'd like to upgrade to a modern 3-axis system.
For various reasons, he'd like to power the knee rather than the quill
(I know there are pros and cons to this, but I'm not likely to change
his mind on t
