From PICLIST@MITVMA.MIT.EDU Fri Nov 15 05:41:25 2002 Received: from cherry.ease.lsoft.com [209.119.0.109] by dpmail10.doteasy.com with ESMTP (SMTPD32-7.13) id A98515530048; Fri, 15 Nov 2002 05:41:25 -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 <3.007DB901@cherry.ease.lsoft.com>; Fri, 15 Nov 2002 8:27:18 -0500 Received: from MITVMA.MIT.EDU by MITVMA.MIT.EDU (LISTSERV-TCP/IP release 1.8d) with spool id 2267 for PICLIST@MITVMA.MIT.EDU; Fri, 15 Nov 2002 08:27:10 -0500 Received: from MITVMA (NJE origin SMTP@MITVMA) by MITVMA.MIT.EDU (LMail V1.2d/1.8d) with BSMTP id 9215; Fri, 15 Nov 2002 08:26:11 -0500 Received: from *unknown [80.202.87.129] by mitvma.mit.edu (IBM VM SMTP Level 320) via TCP with ESMTP ; Fri, 15 Nov 2002 08:26:09 EST X-Warning: mitvma.mit.edu: Host *unknown claimed to be timmy Received: from cartman (cartman.kre.southpark.sec [10.1.1.254]) by timmy (8.12.5/8.12.5) with SMTP id gAFDT7Tj019996 for ; Fri, 15 Nov 2002 14:29:08 +0100 (CET) (envelope-from kreature@c2i.net) References: <013e01c28c90$d1c2f7b0$e7bdf682@sstdwkiwi> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2720.3000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Message-ID: <086c01c28cab$3183c250$fe01010a@cartman> Date: Fri, 15 Nov 2002 14:29:04 +0100 Reply-To: pic microcontroller discussion list Sender: pic microcontroller discussion list From: Kyrre Aalerud Subject: Re: [EE]: Printer to PCB? To: PICLIST@MITVMA.MIT.EDU X-RCPT-TO: Status: R X-UIDL: 277600646 X-Evolution-Source: pop://mailinglist%40farcite.net@mail.farcite.net/ X-Evolution: 0000075b-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. In other words: - if it can close it's claw, there is no pen. - if it can close it just right, there is a pen! - if it can't close it enough, there is a malfunction! My CalComp wants pen's with a diameter of 9mm I think. Kyrre ----- Original Message ----- From: "Alan B. Pearce" To: Sent: Friday, November 15, 2002 11:21 AM Subject: Re: [EE]: Printer to PCB? > >I'm not sure the plotter arm is smart enough to know > >if it has a pen already loaded in it? > > Well the arm isn't :) > > But on my HP7475 it goes through various motions at times to try and grab a > pen from the carousel, or put one in it. I suspect it measures arm position > and motor current to determine the relative states of arm/carousel empty or > occupied. The arm and carousel certainly do a little dance together at > various times as pen requests occur. > > -- > http://www.piclist.com hint: The PICList is archived three different > ways. See http://www.piclist.com/#archives for details. > > > -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.