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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Thanks David – and I just heard that Tony is coming to the conference as a trader, so that’s great news.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Lx<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif"> destech-bounces@edulists.com.au [mailto:destech-bounces@edulists.com.au]
<b>On Behalf Of </b>DAVID FLETCHER<br>
<b>Sent:</b> Tuesday, 17 March 2015 11:33 AM<br>
<b>To:</b> DESIGN & TECHNOLOGY TCHRS MAILING LIST<br>
<b>Subject:</b> [Design and Technology] Modelling foam in CNC machining & Vacuum Forming<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<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"></a><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
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<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>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>
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<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>
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<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>
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<p class="MsoNormal" style="background:white"><span style="font-family:"Helvetica",sans-serif;color:black"> <o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-family:"Helvetica",sans-serif;color:black">Thanks,<o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-family:"Helvetica",sans-serif;color:black">Kurt <o:p></o:p></span></p>
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