I normally use vector based also. Not sure, but I believe vector based gives you a genuine arc. Not a bunch of segmented lines. Chuck Skyworks Solutions inc. Woburn MA -----Original Message----- From: icu-pcb-forum-bounce@xxxxxxxxxxxxx [mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx] On Behalf Of Peter Hughes Sent: Tuesday, March 07, 2006 12:22 PM To: icu-pcb-forum@xxxxxxxxxxxxx Subject: [PCB_FORUM] Re: Gerber RS274X Question Richard, I normally check Vector based pad behavior Rgrds Peter Hughes, PCB Designer, Concurrent Technologies, 4 Gilberd Close, Newcomen Way, Colchester, Essex, CO4 4WN. Tel: +44 1206 752626 Fax: +44 1206 751116 -----Original Message----- From: icu-pcb-forum-bounce@xxxxxxxxxxxxx [mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx] On Behalf Of Richard E Marion Sent: 07 March 2006 17:16 To: Icu-Pcb-Forum Subject: [PCB_FORUM] Gerber RS274X Question Dear Forum, I am generating RS274X Gerber Files. I am accustomed to 6x00 Gerber (I'm an Old-Timer). My question is: In the Film Control Tab, do you recommend "Vector based pad behavior" (Checked) or Not (Un-Checked)? Thank you all, Richard E Marion 169 Little Mill Road Unit 2 Sandown NH 03873-2554 HOME: 603-887-2266 CELL: 603-247-1610