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</o:shapelayout></xml><![endif]--></head><body lang=EN-AU link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Handy advice from Tony Pugatschew about type of FOAM to use in VACUUM FORMING, and CNC MILLING.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>David Fletcher<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Secretary,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>DATTA.Vic<o:p></o:p></span></p><p class=MsoNormal><a name="_MailEndCompose"><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";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, 17 March 2015 10:41 AM<br><b>To:</b> 'Kurt Simpson'; 'ESNET @ iiate'<br><b>Subject:</b> Re: [esnet] Modelling foam<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Dear Kurt,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>You will need POLYURETHANE foam. This is different from the normal POLYSTYRENE foam. Differences should be covered in Plastics 101.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Polyurethane will endure the higher temperatures used in vacuum forming.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>We use a building product that is very dense and can be machined to a very smooth finish. It is called MULTIPANEL and sourced from building suppliers. The safety and MSDS documentation is extensive due to the use in this industry. It is non-toxic but you have to minimise dust creation. Available in different thicknesses and can be glued together. Again, adhesive info is available from suppliers.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>If you are using a CNC mill to make the form you cannot hold it down with double sided tape. I hot glue the foam to a piece of acrylic that is then taped to the bed. No problems clamping it but you have to minimise the compressive force.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Machine as fast as your machine can handle it with a ball nose cutter for an excellent smooth finish.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Follow on Russels suggestion re Solid Solutions but ask for polyurethane.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>In terms of polystyrene – I did have success forming over it if I soaked the foam in water and then sprayed the form with a water mist after vacuum application. You have to be quick and only works if you have have thin plastic for the form. PETG works the best.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Hope that helps.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Tony Pugatschew<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><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>Kurt Simpson<br><b>Sent:</b> Tuesday, 17 March 2015 7:29 AM<br><b>To:</b> ESNET @ iiate<br><b>Subject:</b> [esnet] Modelling foam<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica","sans-serif";color:black'>Hi. Could anyone point me in the direction of a supplier for modelling foam that would be suitable to use as the pattern material for a vacuum former? Are there any non-toxic options available?<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1426539246864_2325"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica","sans-serif";color:black'> <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1426539246864_2328"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica","sans-serif";color:black'>Thanks,<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1426539246864_2327"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica","sans-serif";color:black'>Kurt <o:p></o:p></span></p></div></div></div></body></html>