Hi
here a video i put on youtube a while back
http://www.youtube.com/watch?v=D6dGYsXAPIU
so yes and no, to a VFD for position work, that is in Hz mode, not flux
vector as that drive has a limit of 4000rpm in vector mode and i need at
least 6000rpm for the spindle.
if i was todo it all over,
On Wed, Dec 08, 2010 at 06:21:03PM -0800, Gary McRobert wrote:
Still undecided as how to resolve the tool change challenge.
I think you are asking about how to do spindle orient.
Having used machines with vfd+pid orient and machines with mechanical
orient and lock, I have to say the
I would vote mechanical also - That is how are old machine does it. It
was pretty easy to setup. (I actually wrote a comp for the spindle
gearbox/index for this machine). it sets the transmission into 'lock'
mode then creeps into the dog. Checks to see that the spindle is at 0
rpm and then
Still undecided as how to resolve the tool change challenge.
I am deliberating on two solutions
Option #1 Use a DC servomotor like a Homeshops 850 oz-in
and a drive like the Gecko 320. This will allow positioning the
spindle with plenty of accuracy and spin my cutter at around 3,000
