Re: [CAD_CAM_EDM_DRO] Re: dual motors on Plazma Gantry
Posted by
ptengin@a...
on 2000-10-08 22:57:04 UTC
In a message dated 10/08/2000 7:00:48 AM Hawaiian Standard Time,
tom@... writes:
<< I shouldn't be too difficult
to build a closed loop circuit that would keep the torch at a
constant height above the work, but is that all that is required?
I know that a lot of the guys are just interested in making
chips (so am I) but I am also trying to figure out a way to "retire"
from working for someone else >>
Tom,
If you can come up with a good torch height system, I know you could
retire. Proximity sensors will give different readings over different metals,
the response will vary if caked with slag or clean. I think a lot of outfits
have tried this and other schemes with only limited success. If your sensor
goes over the edge of the palte, will it drop down and cause the nozzle to
hit the plate? If your plazma blast turns around and hits the sensor, will it
be toast? These are some of the obstacles that must be overcome to retire
early on this one ;)
Peter
THRD, Inc.
Some of the newer hypertherms have an air cooled drag nozzle which allows the
torch to be simply dragged on the surface. The thing still has the problem of
hanging up on stuff on its journey.
tom@... writes:
<< I shouldn't be too difficult
to build a closed loop circuit that would keep the torch at a
constant height above the work, but is that all that is required?
I know that a lot of the guys are just interested in making
chips (so am I) but I am also trying to figure out a way to "retire"
from working for someone else >>
Tom,
If you can come up with a good torch height system, I know you could
retire. Proximity sensors will give different readings over different metals,
the response will vary if caked with slag or clean. I think a lot of outfits
have tried this and other schemes with only limited success. If your sensor
goes over the edge of the palte, will it drop down and cause the nozzle to
hit the plate? If your plazma blast turns around and hits the sensor, will it
be toast? These are some of the obstacles that must be overcome to retire
early on this one ;)
Peter
THRD, Inc.
Some of the newer hypertherms have an air cooled drag nozzle which allows the
torch to be simply dragged on the surface. The thing still has the problem of
hanging up on stuff on its journey.