Franklin;
See below for answers to your questions. Also see the following website
for an in depth review of drill / rout program code by Excellon.
http://www.excellon.com/manuals/program.htm
Dave Simonik
Process Tech.
Sanmina SCI
Owego NY Division
-----Original Message-----
From: Franklin Asbell [mailto:[log in to unmask]]
Sent: Friday, November 18, 2005 5:25 PM
To: [log in to unmask]
Subject: Drilling questions
Can someone explain to me what the Letter/Numbers in a drill program mean?
The following is a line from a drill program (This is actually a program
'header', and not the actual program.) Dave
C0.0098F036S110.B0800Z-0.012H350 (C=Diameter or .25mm, F=Feed Rate or 36
inch per minute, S=Spindle Speed or 110Krpm, B=Retract Rate or 800 ipm,
Z=Tool Offset beyond Down Limit setting or 12 mil (or Blind Hole depth),
H=Max. Hits or 350 max hits. This is similar to the format I use for Hitachi
drill equipment. An N (N0 - N10) command on the end of this string will
engage or disengage special functions, such as peck drill, or blind hole
mode. In the case above, no N command is specified, therefore the above
example is for standard drill mode and Z axis offset is tool point offset
into the backer board below the backer board machine down limit setting.
Dave
C0 = Starts the program
0098 = Drill (tool) size
F036 = Feed, but what is 036?
S110 = 11000 or 110000 RPMs
B0800 =
Z-0.012 =
H350 = 350 drill hits
Also, can someone provide a simpler method for determining chip load? (Feed
rate divided by Spindle Speed, or .327 mil per inch chip load in the above
example.) Dave
Thanks,
Franklin
---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 1.8e To
unsubscribe, send a message to [log in to unmask] with following text in the
BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or
(re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet
NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send
e-mail to [log in to unmask]: SET Technet Digest Search the archives of
previous posts at: http://listserv.ipc.org/archives Please visit IPC web
site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional
information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100
ext.2815
-----------------------------------------------------
____________________________________________________________________________
_
Scanned by Sanmina-SCI eShield
____________________________________________________________________________
_
_____________________________________________________________________________
---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 1.8e
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL)
To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest
Search the archives of previous posts at: http://listserv.ipc.org/archives
Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815
-----------------------------------------------------
Scanned by Sanmina-SCI eShield _____________________________________________________________________________
|
