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</o:shapelayout></xml><![endif]--></head><body lang=EN-AU link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><a name="_MailEndCompose"><span style='color:#1F497D'><o:p> </o:p></span></a></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> esnet [mailto:esnet-bounces@iiate.asn.au] <b>On Behalf Of </b>Tony Pugatschew<br><b>Sent:</b> Tuesday, 10 June 2014 2:50 PM<br><b>To:</b> 'ESNET @ iiate'<br><b>Subject:</b> Re: [esnet] Cold and warping issues on the UP!, print speed<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='color:#1F497D'>Ideal opportunity to extend the concept and link some key areas. We always seem to have many posts regarding electronics projects and here is one!!<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Could we do something a little more related to electronics/STEM concepts.?<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Lets make a temperature controlled environment ( links to air cons, temp controlled ovens, car climate control, how does body regulate, what to use for insulation, thermal mass, green house design, trombe walls in construction, double brick design, SIP panels and integrated insulation and it goes on).<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>For example,<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Find an appropriate temperature sensor – thermistor or PT100 or thermocouple ( what is the sensor used in the UP! heater plate??)<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Look at the output characteristics – linear/non linear – hey !! Sounds a little like mathematics<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Can we convert the raw output of the sensor – current/voltage or something else to temperature – sounds like calibration/fitting to some sort of function.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>How do we control a heater – do we use an incandescent lamp or some other heater?<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>How do we set up a thermostat – do we measure the temperature and turn on the heater full bore because you will overshoot the temperature setting?<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Do we use a bit-bang or proportional control -? Again mathematics<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Nice to use a microcontroller because we can show the temperature on a display or use a potentiometer to set the desired temp<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>What to do if you lose control of the sensing and your heater goes on and on – brings in the concept of aggressive programming and thinking ahead.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Notice that the activities are more than just assembling a kit, soldering it!.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>OR DO WE JUST BUILD A BOX ?<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Thanks<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Tony Pugatschew<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><img width=358 height=228 id="Picture_x0020_1" src="cid:image004.jpg@01CF84B7.0CB93660"><span style='color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> esnet [<a href="mailto:esnet-bounces@iiate.asn.au">mailto:esnet-bounces@iiate.asn.au</a>] <b>On Behalf Of </b>Nordstrom, Andrew<br><b>Sent:</b> Tuesday, 10 June 2014 9:57 AM<br><b>To:</b> ESNET @ iiate<br><b>Subject:</b> Re: [esnet] Cold and warping issues on the UP!, print speed<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Bookman Old Style","serif";color:black'>re warping due to cold and the up2<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Bookman Old Style","serif";color:black'>many overseas schools (read far northern hemisphere) report success enclosing the printer in a clear plastic case, or some other thermal casing <o:p></o:p></span></p></div><div><div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'> <o:p></o:p></span></p></div><div><p class=MsoNormal><em><span style='font-size:10.0pt;font-family:"Bookman Old Style","serif";color:black'>Andrew Nordstrom</span></em><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal><em><span style='font-size:10.0pt;font-family:"Bookman Old Style","serif";color:black'>Head Teacher Technology/Visual Arts</span></em><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal><em><span style='font-size:10.0pt;font-family:"Bookman Old Style","serif";color:black'>Sarah Redfern High School</span></em><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal><em><span style='font-size:10.0pt;font-family:"Bookman Old Style","serif";color:black'>Phone (02) 9820 1566</span></em><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal><em><span style='font-size:10.0pt;font-family:"Bookman Old Style","serif";color:black'>Fax (02) 9820 3050</span></em><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal><em><span style='font-size:10.0pt;font-family:"Bookman Old Style","serif";color:black'>Email <a href="mailto:andrew.nordstrom@det.nsw.edu.au">andrew.nordstrom@det.nsw.edu.au</a></span></em><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:24.0pt;font-family:Webdings;color:green'>P</span><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:navy'> </span></b><em><span style='font-size:7.5pt;font-family:"Bookman Old Style","serif";color:green'>Please consider the environment before printing this e-mail</span></em><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal><em><span style='font-size:7.5pt;font-family:"Segoe UI","sans-serif";color:black'>DISCLAIMER: The information in this message is confidential and may be legally privileged. It is intended solely for the addressee. Access to this message by anyone else is unauthorised. If you are not the intended recipient, any disclosure, copying, or distribution of the message, or any action or omission taken by you in reliance on it, is prohibited and may be unlawful. Please immediately contact the sender if you have received this message in error.</span></em><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'><o:p></o:p></span></p></div></div></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Bookman Old Style","serif";color:black'> <o:p></o:p></span></p></div><div id=divRpF457928><div class=MsoNormal align=center style='text-align:center'><span style='font-size:10.0pt;font-family:"Bookman Old Style","serif";color:black'><hr size=2 width="100%" align=center></span></div><p class=MsoNormal style='margin-bottom:12.0pt'><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'> esnet [esnet-bounces@iiate.asn.au] On Behalf Of Tony Pugatschew [support@intellecta.net]<br><b>Sent:</b> Saturday, 7 June 2014 10:44 AM<br><b>To:</b> ESNET @ iiate<br><b>Subject:</b> [esnet] Cold and warping issues on the UP!, print speed</span><span style='font-size:10.0pt;font-family:"Bookman Old Style","serif";color:black'><o:p></o:p></span></p></div><div><div><p class=MsoNormal><span style='color:black'>Dear All,<o:p></o:p></span></p><p class=MsoNormal><span style='color:black'>Getting a flood of calls re the UP! warping issues. Seems to be related to the onset of winter.<o:p></o:p></span></p><p class=MsoNormal><span style='color:black'>Here are some suggestions that hopefully can help.<o:p></o:p></span></p><p class=MsoListParagraph style='text-indent:-18.0pt'><span style='color:black'>a)</span><span style='font-size:7.0pt;font-family:"Times New Roman","serif";color:black'> </span><span style='color:black'>Make sure the bed is flat. If you are having warping on a corner then the bed is not flat.<o:p></o:p></span></p><p class=MsoListParagraph style='text-indent:-18.0pt'><span style='color:black'>b)</span><span style='font-size:7.0pt;font-family:"Times New Roman","serif";color:black'> </span><span style='color:black'>Keep it warm – hard to do on the UP! Plus but easy on the UP! Mini ( enclosed)<o:p></o:p></span></p><p class=MsoListParagraph style='text-indent:-18.0pt'><span style='color:black'>c)</span><span style='font-size:7.0pt;font-family:"Times New Roman","serif";color:black'> </span><span style='color:black'>Check the print plate – could be dusty.<o:p></o:p></span></p><p class=MsoListParagraph style='text-indent:-18.0pt'><span style='color:black'>d)</span><span style='font-size:7.0pt;font-family:"Times New Roman","serif";color:black'> </span><span style='color:black'>Level position – I adjust the height until I feel a “grab” on a piece of 80gsm paper.<o:p></o:p></span></p><p class=MsoListParagraph style='text-indent:-18.0pt'><span style='color:black'>e)</span><span style='font-size:7.0pt;font-family:"Times New Roman","serif";color:black'> </span><span style='color:black'>Examine the print bed PCB.<o:p></o:p></span></p><p class=MsoListParagraph style='text-indent:-18.0pt'><span style='color:black'>f)</span><span style='font-size:7.0pt;font-family:"Times New Roman","serif";color:black'> </span><span style='color:black'>Check orientation of part – try to keep the thicker parts as vertical walls and minimise the base thickness.<o:p></o:p></span></p><p class=MsoNormal><span style='color:black'>I have had great success with a 3mm grey tile material. Cut with an angle grinder fitted with diamond blade.<o:p></o:p></span></p><p class=MsoNormal><span style='color:black'>I spray with the clear spray – Little squirts from Bunno’s. Sticks really well and needs a chisel to remove.<o:p></o:p></span></p><p class=MsoNormal><span style='color:black'>In fact, the print sticks so well that an infrequent expletive seems to assist – do this away from earshot of students.!<o:p></o:p></span></p><p class=MsoNormal><span style='color:black'> <o:p></o:p></span></p><p class=MsoNormal><span style='color:black'><img border=0 width=355 height=317 id="Picture_x0020_3" src="cid:image001.jpg@01CF84B5.94A8EF40"><o:p></o:p></span></p><p class=MsoNormal><span style='color:black'> <o:p></o:p></span></p><p class=MsoNormal><span style='color:black'>Had questions on print speed.<o:p></o:p></span></p><p class=MsoNormal><span style='color:black'>If you are having trouble getting through a design because of time then examine the design. Additive printing is slow and this often left out of the seductive spin marketing hype. I have only seen the time mentioned twice in articles – kayak took 45 days and the car body took 13 months to print. Get the students to appreciate the layer thickness. Is it necessary to print at 0.2mm layer thickness when 0.4mm is fine and a lick with acetone will smooth the surface?. The higher accuracy is important if you have small angled features.<o:p></o:p></span></p><p class=MsoNormal><span style='color:black'> <o:p></o:p></span></p><p class=MsoNormal><span style='color:black'>Solution in a school is simple – get more Printers!! . The baby up minis $650 ex GST and you can get a couple. These have proved to be most reliable and have survived a drop down some stairs. We can help with these but the waiting time is about 4 weeks!!!<o:p></o:p></span></p><p class=MsoNormal><span style='color:black'> <o:p></o:p></span></p><p class=MsoNormal><span style='color:black'>The other suggestion on print adherence is to gently push up on the first layer print so the raft really beds down. You can remove the pressure after the first layer.<o:p></o:p></span></p><p class=MsoNormal><span style='color:black'> <o:p></o:p></span></p><p class=MsoNormal><span style='color:black'>Hope this info helps and happy printing!<o:p></o:p></span></p><p class=MsoNormal><span style='color:black'> <o:p></o:p></span></p><p class=MsoNormal><span style='color:black'> <o:p></o:p></span></p><p class=MsoNormal><span style='color:black'>Tony Pugatschew<o:p></o:p></span></p><p class=MsoNormal><span style='color:black'>08 8351 8288<o:p></o:p></span></p><p class=MsoNormal><span style='color:black'>Local mobile: 0419 801 392<o:p></o:p></span></p><p class=MsoNormal><span style='color:black'>Email: <a href="mailto:support@intellecta.net">support@intellecta.net</a><o:p></o:p></span></p><p class=MsoNormal><span style='color:black'> <o:p></o:p></span></p><p class=MsoNormal><span style='color:black'> <o:p></o:p></span></p><p class=MsoNormal><span style='color:black'> <o:p></o:p></span></p></div></div></div><p><span style='font-size:10.0pt;font-family:"Courier New"'><br>**********************************************************************<br>This message is intended for the addressee named and may contain <br>privileged information or confidential information or both. If you <br>are not the intended recipient please delete it and notify the sender.<br>********************************************************************** </span><o:p></o:p></p><div class=MsoNormal align=center style='text-align:center'><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><hr size=1 width="100%" noshade style='color:#A0A0A0' align=center></span></div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'>No virus found in this message.<br>Checked by AVG - <a href="http://www.avg.com">www.avg.com</a><br>Version: 2014.0.4592 / Virus Database: 3955/7646 - Release Date: 06/09/14<o:p></o:p></span></p></div></body></html>