X-Authentication-Warning: delorie.com: mail set sender to geda-user-bounces using -f X-Recipient: geda-user AT delorie DOT com X-Original-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=ZwX7vhfxDvP8uoXTtuwruq8qbg9z7VrNZyI9UJruDAg=; b=mgTj+hyq/94Y7p1l36DoIUiTrexVHUBY+bXZh74DPHfd+FV5z3DxyTIP13zeWGYs1b +/d/Yg/HoH7E5EZ+6O+llhbbozwS9/BfppJ59IkmDKX0YWh0n09AP8+/aZCEOwZOnAn6 YnBpwGwyo9i6/2SEinW4mcqJDx9K0O4qKE9J5UXH365rodbvGAhEtYgXrmMjK8j+uo73 bB8rOnOJKVpzPj1U5Ts4/mL9OwtIO6ADaGJYLHX1vDUP3jUQI2H82FLQIu/NLCYQcMjH 4jvG451OK9OPORCsgkriqGUjpwNs7MZZ7r7/75MkZ6iJB3zqAVh0a5g/MoDYQ5Aj+ck7 hmiw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:content-type; bh=ZwX7vhfxDvP8uoXTtuwruq8qbg9z7VrNZyI9UJruDAg=; b=OQw/o6+Gvcgr8DPk6cVXOHSGn+i3YOd97a1nToNj8kaMJQ/eDkYCsaX1nGfbvkxRv5 kpuzg4vwbY2imac5Y5/Q9LpwcC4b+ZsyI5aB2wx/kTlyyRZofDITR0uqiR4ks2WubD3s lU/JFjdiTkYwhnHPfbO4S/h95DesmK2p9nnLroZ7+VN2Ezopdg6P2FTaae+2cbMHxQrO pBFYFnx0KJabiNmuiRr0R61X64R+Ckd4Ro007+L6nLsBZPMWRH/fZB4CK8uQz2M3e5Dq U/W+d/0+dcG364GKVtIqeKT4tU7tYUi9ULiIDvjxGNSsK3Y39O/TwI9tMJGpQliksksY 9HPA== X-Gm-Message-State: ALoCoQmc1hWBJtL+fFeQ3TdpMG7locEAoJYpjnLxS94VorUHCI2j6QLWX5qF7/RkQtSk3nA4uT+4tYmWyURHWAuvYbxcqqTHJA== MIME-Version: 1.0 X-Received: by 10.107.155.146 with SMTP id d140mr20564782ioe.92.1453123300812; Mon, 18 Jan 2016 05:21:40 -0800 (PST) In-Reply-To: References: Date: Mon, 18 Jan 2016 08:21:40 -0500 Message-ID: Subject: Re: [geda-user] [pcb] poll: burried/blind vias vs. pcb and pcb-rnd From: "Bob Paddock (graceindustries AT gmail DOT com) [via geda-user AT delorie DOT com]" To: geda-user AT delorie DOT com Content-Type: text/plain; charset=UTF-8 Reply-To: geda-user AT delorie DOT com Errors-To: nobody AT delorie DOT com X-Mailing-List: geda-user AT delorie DOT com X-Unsubscribes-To: listserv AT delorie DOT com Precedence: bulk On Mon, Jan 18, 2016 at 2:32 AM, wrote: > Hi all, > > after some more code reading I found a way to add support for burried/blind > vias in pcb-rnd with reasonable effort, "The patch to add Blind/Buried vias has been suffering from Bit Rot on Source Forge for years. It was last rebased about a year ago [Aug/22/2011] http://www.seul.org/pipermail/geda-user/2010-July/047949.html " Hypothetical examples of pricing from a vendor: 4 layer board, no blind or buried vias, price = X. 4 layer board, single blind vias (layers 1-2 or 3-4), price = X + 1/2-2/3X. 4 layer boars, single buried vias (layers 2-3), price = X + X. 4 layer board, double blind vias (layers 1-2 and 3-4) price X + X + 1/2X If the blind and buried vias overlap the same layers (say 1-3 and 3-4), the board is not buildable without controlled depth drilling (too expensive to consider in most all cases). For example, say you have an 8-layer board, and you have blind vias from layers 1-4, and 5-8, and buried vias from 3-6, not able to do that since the blind and buried involve the same layers. This is something that needs a DRC warning. > My only problem is that I do not really feel the need for this feature It is what keeps me using Altium and the less than perfect Windows versions. > 1. How many of your boards REQUIRE burried or blind vias? [percentage] 5% > 2. How many of your boards could BENEFIT burried or blind vias? [percentage] 20% > 3. When your board REQUIRED them, do you more often find a workaround to > stick with pcb instead of switching to another design tool? [yes/no] No. Altium. > 4. When your board could BENEFIT using them, do you more often find a > workaround to stick with pcb instead of switching to another design tool? > [yes/no] No. > 5. Have you ever tried pcb-rnd? [yes/no] My next design with PCB will. > 6. Would you try pcb-rnd if it offered blind/burried vias? [yes/no] Yes. > 7. Would you consider switching to pcb-rnd if it offered blind/burried vias? > [yes/no] I may switch even if that is not the case. > 8. Approximately how many boards have you done so far with pcb (pcb > mainline/branches/forks included, using gschem/gnetlist not required)? "1 > board done" means you had one or more physical copies of the board. [rough > estimation, positive integer] 5 > 9. Approximately how many boards have you done with other packages? [rough > estimation, positive integer] 20 > 10. What OS would you prefer to do your pcb layouts on (assuming your > favorite layout tool is/would be available on it)? [one of: (GNU/)Linux, > *BSD, OSX, windows, other; if you like more, select the one you would spend > most time on!] I prefer Linux. However Windows support is still required (contract thing. :-( )