From PICLIST@MITVMA.MIT.EDU Fri Nov 15 06:25:49 2002 Received: from cherry.ease.lsoft.com [209.119.0.109] by dpmail10.doteasy.com with ESMTP (SMTPD32-7.13) id A3ED177D0060; Fri, 15 Nov 2002 06:25:49 -0800 Received: from PEAR.EASE.LSOFT.COM (209.119.0.19) by cherry.ease.lsoft.com (LSMTP for Digital Unix v1.1b) with SMTP id <8.007DB84E@cherry.ease.lsoft.com>; Fri, 15 Nov 2002 9:11:45 -0500 Received: from MITVMA.MIT.EDU by MITVMA.MIT.EDU (LISTSERV-TCP/IP release 1.8d) with spool id 2746 for PICLIST@MITVMA.MIT.EDU; Fri, 15 Nov 2002 09:11:40 -0500 Received: from MITVMA (NJE origin SMTP@MITVMA) by MITVMA.MIT.EDU (LMail V1.2d/1.8d) with BSMTP id 0141; Fri, 15 Nov 2002 09:11:39 -0500 Received: from ezy.net.au [203.220.72.210] by mitvma.mit.edu (IBM VM SMTP Level 320) via TCP with ESMTP ; Fri, 15 Nov 2002 09:11:38 EST X-Comment: mitvma.mit.edu: Mail was sent by ezy.net.au Received: from localhost (localhost.localdomain [127.0.0.1]) by ezy.net.au (Postfix) with ESMTP id 195F51EB263 for ; Sat, 16 Nov 2002 01:13:38 +1100 (EST) Received: from n7e2i8 (198dnas.nas.speedlink.com.au [203.220.73.198]) by ezy.net.au (Postfix) with SMTP id 48F031EB239 for ; Sat, 16 Nov 2002 01:13:37 +1100 (EST) X-Mailer: Mozilla 3.04Gold (Win95; I) MIME-Version: 1.0 References: <3DD1F5D4.2F87@ezy.net.au> <003d01c28b33$2d194920$0800a8c0@dal9002> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Virus-Scanned: by AMaViS new-20020517 Message-ID: <3DD4FF4A.2F51@ezy.net.au> Date: Sat, 16 Nov 2002 01:06:02 +1100 Reply-To: pic microcontroller discussion list Sender: pic microcontroller discussion list From: Roman Black Subject: Re: [EE]: Printer to PCB? To: PICLIST@MITVMA.MIT.EDU X-RCPT-TO: Status: R X-UIDL: 277600658 X-Evolution-Source: pop://mailinglist%40farcite.net@mail.farcite.net/ X-Evolution: 00000767-0000 Dal Wheeler wrote: > > When I played with this kind of thing on an old HP plotter, the recommended > resist pen ink was a staedler red felt marker. I replaced the felt soaked > core of the standard plotter pens with a scavanged staedler pen. You can > get a bottle of the same ink (although it's special order around here.). > Might try to see if it will work in an ink jet nozzle. Just about any waterproof marker will work as an etch resist, as long as the coating is thick enough. I've even used the waterproof felt tips sold in supermarkets. To get the ink to a decent thickness you need to ensure the pen traverse is slow enough, meaning the plotter speed has to be run on slow which is exascerbating the problem with the plotter solution. There is also a slight tendency for the tip to "scrub off" ink from previous passes, making it harder to do large inked areas, which is one area (pun?) that the bubblejet will really outperform the plotter. :o) -Roman -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.