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=20161025;
        h=date:from:to:subject:message-id:in-reply-to:references:mime-version
         :content-transfer-encoding;
        bh=T+MvDx/Fgo7634FMHZynCjB5CEgoQ3qPbHUmvLNC1qg=;
        b=dy7J7jeel7tv0wYdo8C3Z/BSmxkl9rbc6ELlpoLSu67DbIrdYrvlpWjU0ur/hrRKLz
         uG5mck4yAsESiCQQkYz4nfPagariMEZWa5uuu1ZmoG5N8v52OjzOqLE7GXrK+B1rsV4F
         NPg5fjx2ZUAmWL+WGHkoS7AT421AZknVmAyW7kbkTHLLG+Pb5g/aZETe5o9RGBHyxpIS
         J9SvDSDFdLYiosQ/XT4ECxCLjsunWHPQi4wH0THHtby4uDW0MVhnEeYBMX39vQ0WGcYp
         zzs9lI0vbGIXqjvzeAJldxokVdhZdsz75p7x4YoOlUyx6yowtayeFjcAJUEG11XUW17j
         XaIg==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=1e100.net; s=20161025;
        h=x-gm-message-state:date:from:to:subject:message-id:in-reply-to
         :references:mime-version:content-transfer-encoding;
        bh=T+MvDx/Fgo7634FMHZynCjB5CEgoQ3qPbHUmvLNC1qg=;
        b=ND0X0Vgf++PX5UoPUrlpnqMJ36Q2TS6JXmhzSGf6sI6NfwrUDcl0l0Dn8AWLEJX4sb
         vGZ7CJNJeSqUNa3S2HD4LG1f85EfiKJjzHDG05ItgcTLNZ9pO2xVs61XHCyWZmtTKR8k
         +p61xRJGmoflzA/s79P/jabhXd7drfKdbRB8M1FdqO/WHwlSU1Zx6LvRp4m6wi3UJXO8
         KfGVjLjqf3aRVeQv9jsfB5wvjMnAa2I4IlSqXlMyNZiJRYHATsgJFzi2PvVKoztZlNE3
         SHGpuHBn/HIxmVCekkFUuqEeMgdiE0eyMGwK4GZFChRjwCbvLuqZnPTmFwuevWc3iIwh
         CInQ==
X-Gm-Message-State: AOAM530RVgsiGK7ChGEz/+XVWU70m9kaJ5QCdYhhqheHsyf0k18zDC0Y
	EhL9mwcfgiGmeHwqogK5lISijKDPYDU=
X-Google-Smtp-Source: ABdhPJymfqluxyu9tJUMKYqjii5538/+0t0klUQKAsi2ZCLjnYx9XaRb6nWsb4JBbi35fsSwhjPgBQ==
X-Received: by 2002:a05:6512:3fa:: with SMTP id n26mr31707132lfq.190.1594109814150;
        Tue, 07 Jul 2020 01:16:54 -0700 (PDT)
Date: Tue, 7 Jul 2020 10:16:52 +0200
From: "N (nicklas DOT karlsson17 AT gmail DOT com) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com>
To: geda-user AT delorie DOT com
Subject: Re: [geda-user] Soldering high current thru hole components
Message-Id: <20200707101652.de762590de33c775301820dc@gmail.com>
In-Reply-To: <CANEvwqh3=xgk3LX7o58JFX1L7PQpZbzGG_qtTwBBG5Ozo3u2Qg@mail.gmail.com>
References: <20200706195132 DOT 310da9ba3737f9727c71821c AT gmail DOT com>
	<CAKakQcdpRWLkynD+vaT6QYewe7qarRPTMB1+aiV1E4jo5isiZA AT mail DOT gmail DOT com>
	<CANEvwqh3=xgk3LX7o58JFX1L7PQpZbzGG_qtTwBBG5Ozo3u2Qg AT mail DOT gmail DOT com>
X-Mailer: Sylpheed 3.7.0 (GTK+ 2.24.32; x86_64-pc-linux-gnu)
Mime-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit
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

> Hi,
> 
> 30 years of experience in assembly and rework of electronic PCB's and
> devices. Use a preheater to heat the board
> up prior to trying to solder the component(s) onto the board. Heat it up to
> at least  110 C and not more than 130 C.
> If the board has a large ground plane, it may take 15 or 20 minutes to
> preheat the board to a workable temperature.
> 
> A good preheater changes everything in assembly and rework...
> 
> Regards
> 
> Marvin

Used small diameter heat gun to locally pre heat. Guess wave soldering is the manufacturing solution then prototypes are done, there are surface mounted components on other side but prefer thru hole for connectors, mechanical reasons.

I have done schematics and layout of circuit boards for a little bit more than ten years but have at least one layer of management in between me and soldering machine. There I worked before I know where it was but had two layers of management in between me and soldering machine. Under these circumstances it is often a little bit hard to figure out which solutions might be best.

No management then working for myself and figured out a solution that should be technically good and should make no difference for soldering except thru hole for connectors. I did not make thermal relief to get low resistance but may have to add to make it easier to solder, at least on electrolytic capacitors. For connectors press fit is also an option but not for the electrolytic I guess.


Regards Nicklas Karlsson