Re: [CAD_CAM_EDM_DRO] Re: re: WIRE RETHREADING EDM

----- Original Message -----
From: <ballendo@...>
To: <CAD_CAM_EDM_DRO@egroups.com>
Sent: Monday, January 15, 2001 11:15 AM
Subject: [CAD_CAM_EDM_DRO] Re: re: WIRE RETHREADING EDM


Ballendo

How far is the upper guide from the workpiece?

*About 25 to 50mm above the job

"Does the wire re-thread through the existing path (which perhaps
is 'cleared of debris' by the water jet, or does it restart through
the original start hole?

*Actually the rethreading is designed for starting a new profile with a
new start hole in the same block of steel as a typical motor stamping die
could have 50 seperate cavities.Using a quality machine,quality wire the
wire should not break during its normal path.

Surely these wire edm's do not contain a waterjet 'cutter' for re-thread?!?

*The wire cutter is a simple mechanism similar to a lawn mower with a small
geared motor

Is there a "blip in the edge where the re-thread/ restart occurs? If not,
do you know how 'they' avoid this problem?

* As you guessed a blip is very possible at the point of restart.There is
not
much one can do with a blip

regards

Byron