X-Authentication-Warning: delorie.com: mail set sender to geda-user-bounces using -f X-Recipient: geda-user AT delorie DOT com Message-ID: <53C6B815.10108@sonic.net> Date: Wed, 16 Jul 2014 10:36:21 -0700 From: Dave Curtis User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:16.0) Gecko/20121028 Thunderbird/16.0.2 MIME-Version: 1.0 To: geda-user AT delorie DOT com Subject: Re: [geda-user] Octagon flag on Pad[] References: <53C69EB6 DOT 6030003 AT sonic DOT net> In-Reply-To: <53C69EB6.6030003@sonic.net> X-Forwarded-Message-Id: <53C69EB6 DOT 6030003 AT sonic DOT net> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Sonic-ID: C;JkJ4sw8N5BGHKE2zUc16mQ== M;uluTsw8N5BGHKE2zUc16mQ== X-Spam-Flag: No X-Sonic-Spam-Details: 0.0/5.0 by cerberusd Reply-To: geda-user AT delorie DOT com On 07/16/2014 02:56 AM, Peter C.J. Clifton wrote: > On 2014-07-15 05:41, Dave Curtis wrote: >> On 07/14/2014 09:09 PM, DJ Delorie wrote: >>>> "octagon" flag appears to do nothing on Pad[] directives. Is this >>>> correct? >>> >>> Correct. >>> >> Is that by plan? A friend and I are looking at "challenging footprint >> specs" (we're easily entertained..) and I've seen a couple where an >> interpolated octagon could be helpful. > > Thats a poly-curve. > > (As are ROUND pads, obround pads, square, .... (you get the idea). Well, but octagons are a RS-274X pad macro primitive, both flashed and stroked, so they are fair game for footprint pad construction. I guess I don't understand the logic of not allowing the octagon flag on Pad[]'s, since they are allowed on Pin[]'s. It seems to me that all the logic should be there to draw them -- wouldn't they be handled the same as a square aperture, even when the pad is parallel to the X/Y axes? > > Bonus points for allowing "HOLES" to be non-round (poly-curve) too, to > support manufacturing slots ;) > > (And for footprints which use slots to pass wide tabs on a big power > connector, for example.) How are footprint slots communicated to the fab house? Outline layer paths are routed after fab, but slots would need to be routed pre-plating. Would another mechanical layer be added that contains slot routing information? And do you communicate slot outlines or a toolpath and tool diamater? > > Peter >