Re: [CAD_CAM_EDM_DRO] Z axis on the knee, how practical????

Tim,
Ok I give up. What the heck is "AIR ASSIST" on the knee?
I'm still testing Z-AXIS on the knee on my bridgeport.
I'm using 600 oz. in. servo & G340 drivers with Master5.
With stepper motors on my Jet Mill/Drill, I can go to one location & go back
to X0.00.
I can not get this to work with Servo motors. Also I hooked up a Shooting
Star scale on the
knee & (I remove the wires from the encoder on the Servo) & when it stops
moves
at a test setting, the Servo motors are hunting.
Thank you,
Al Alfano

----- Original Message -----
From: "Tim Goldstein" <timg@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Tuesday, May 14, 2002 9:39 PM
Subject: RE: [CAD_CAM_EDM_DRO] Z axis on the knee, how practical????


> Bridgett does not care if I lean on the table while she works. For that
> matter she doesn't care if I jump up and dance on the table as long as I
> have the air assist on. Just moves to where she is suppose to go. My
> Shoptask is a driven quill so I have experience with both. The knee
> moves plenty fast, but it is not a problem, but something different to
> get used to.
>
> Tim
> [Denver, CO]
> Close out stepper drives, encoder, stepper motors
> http://www.KTMarkting.com/CNC.html
>
> > -----Original Message-----
> >
> >
> > Group,
> >
> > I've been following the discussion of Z-knee conversions. I
> > understand why this is done...because it's easier than fitting a ball
> > screw to the quill.
> >
> > My question involves what it's like to machine parts on a B'port or
> > larger machine with the Z on the knee. Personally, I can't imagine
> > it would be a desirable situation. First off, sometimes I lean on
> > the table as a part is being cut, that wouldn't be possible with the
> > table moving up and down. How about part visibility, isn't it hard
> > to closely watch the cutting action if the part is moving up and down?
> >
> > So, tell me what it's like. Are you guys who are doing this type of
> > conversion experienced with more conventional Z axis (quill) machines
> > or don't you have any basis for comparison? Maybe the Z-knees move
> > so slowly there isn't a problem?
> >
> > just curious,
> >
> > Doug
> >
> >
> > Addresses:
> > FAQ: http://www.ktmarketing.com/faq.html
> > FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
> >
> > OFF Topic POSTS: General Machining
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> > to reach it if you have trouble.
> > http://www.metalworking.com/news_servers.html
> >
> http://groups.yahoo.com/group/jobshophomeshop I consider this as a
> sister site to the CCED group, as many of the same members are there,
> for OT subjects, that are not allowed on the CCED list.
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> FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
>
> OFF Topic POSTS: General Machining
> If you wish to post on unlimited OT subjects goto:
aol://5863:126/rec.crafts.metalworking or go thru Google.com to reach it if
you have trouble.
> http://www.metalworking.com/news_servers.html
>
> http://groups.yahoo.com/group/jobshophomeshop I consider this as a
sister site to the CCED group, as many of the same members are there, for OT
subjects, that are not allowed on the CCED list.
>
>
>
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