From PICLIST@MITVMA.MIT.EDU Fri Nov 15 05:53:29 2002 Received: from LIME.EASE.LSOFT.COM [209.119.1.41] by dpmail10.doteasy.com with ESMTP (SMTPD32-7.13) id AC59162F00EA; Fri, 15 Nov 2002 05:53:29 -0800 Received: from PEAR.EASE.LSOFT.COM (209.119.0.19) by LIME.EASE.LSOFT.COM (LSMTP for Digital Unix v1.1b) with SMTP id <13.006775D4@LIME.EASE.LSOFT.COM>; Fri, 15 Nov 2002 8:40:28 -0500 Received: from MITVMA.MIT.EDU by MITVMA.MIT.EDU (LISTSERV-TCP/IP release 1.8d) with spool id 2358 for PICLIST@MITVMA.MIT.EDU; Fri, 15 Nov 2002 08:39:13 -0500 Received: from MITVMA (NJE origin SMTP@MITVMA) by MITVMA.MIT.EDU (LMail V1.2d/1.8d) with BSMTP id 9390; Fri, 15 Nov 2002 08:37:23 -0500 Received: from nameserv.rl.ac.uk [130.246.135.129] by mitvma.mit.edu (IBM VM SMTP Level 320) via TCP with ESMTP ; Fri, 15 Nov 2002 08:37:22 EST X-Comment: mitvma.mit.edu: Mail was sent by nameserv.rl.ac.uk Received: from sstdwkiwi (sstdwkiwi.ag.rl.ac.uk [130.246.189.231]) by nameserv.rl.ac.uk (8.8.8/8.8.8) with SMTP id NAA00352 for ; Fri, 15 Nov 2002 13:37:22 GMT References: <013e01c28c90$d1c2f7b0$e7bdf682@sstdwkiwi> <086c01c28cab$3183c250$fe01010a@cartman> X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4807.1700 X-MIMEOLE: Produced By Microsoft MimeOLE V5.50.4807.1700 Message-ID: <01fe01c28cac$20f07bd0$e7bdf682@sstdwkiwi> Date: Fri, 15 Nov 2002 13:37:23 -0000 Reply-To: pic microcontroller discussion list Sender: pic microcontroller discussion list From: "Alan B. Pearce" Subject: Re: [EE]: Printer to PCB? To: PICLIST@MITVMA.MIT.EDU X-RCPT-TO: Status: R X-UIDL: 277600648 X-Evolution-Source: pop://mailinglist%40farcite.net@mail.farcite.net/ Mime-Version: 1.0 X-Evolution: 0000075d-0000 >Actually... It can know if it has a pen. >It all depends on the arm. My CalComp 2024 knows >it has a pen by the thickness. OK so the calcomp has an active clamp on the arm, but all the HP plotters I have seen just clip the pen into the arm using the force of the motor to drive the arm into the pen in the carousel. Hence the way I described that software "plays games" to find out if there is a pen in the arm. -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.