<html><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, Sans-Serif;font-size:12pt">If it's that order of cost then is it worthwhile looking into injection? I believe there are some low-volume shops designed for prototyping; 100-off would presumably be a viable (or even large) order for them. Anyone know where the tipping point is likely to be? I'm assuming the current solid models can be re-used.<br><div><span><br></span></div><div><br></div><blockquote style="border-left: 2px solid rgb(16, 16, 255); margin-left: 5px; margin-top: 5px; padding-left: 5px;"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, Sans-Serif; font-size: 12pt;"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, Sans-Serif; font-size: 12pt;"> <div dir="ltr"> <hr size="1"> <font size="2" face="Arial"> <b><span
style="font-weight:bold;">From:</span></b> Damon Hart-Davis <dhd@exnet.com><br> <b><span style="font-weight: bold;">To:</span></b> Closed list for developer discussions <opentrv-dev@lists.opentrv.org.uk> <br> <b><span style="font-weight: bold;">Sent:</span></b> Wednesday, 27 November 2013, 9:18<br> <b><span style="font-weight: bold;">Subject:</span></b> Re: [OpenTRV-dev] Mass box printing<br> </font> </div> <div class="y_msg_container"><br>I do 0.3mm layers; 2h is about right. Which is why I don’t want to tie your life up on mass production.<br clear="none"><br clear="none">Rgds<br clear="none"><br clear="none">Damon<br clear="none"><br clear="none"><br clear="none">On 27 Nov 2013, at 08:56, Bo Herrmannsen <<a shape="rect" ymailto="mailto:bo.herrmannsen@gmail.com" href="mailto:bo.herrmannsen@gmail.com">bo.herrmannsen@gmail.com</a>> wrote:<br clear="none"><br clear="none">> Pronterface says:<br clear="none">> <br
clear="none">> 4631.27473342 mm of filament used in this print<br clear="none">> <br clear="none">> that is for all 4 layers in one go at best resolution the printer can (0.1mm layer hight) print time is an insane 6 hours... at 0.2 mm it would be half... and at 0.3mm it would be 2 hours<br clear="none">> <br clear="none">> <br clear="none">> Den 27/11/2013 kl. 08.41 skrev Stuart Poulton:<br clear="none">> <br clear="none">>> "Most service bureaux charge per unit volume of material used in the building of the model, and not the total volume. We like to do it a little different…. we charge for the total swept volume of the part, but at about a tenth of the cost of the going rate!"<br clear="none">>> <br clear="none">>> Which seems like a fair way to do it.<br clear="none">>> <br clear="none">>> On 27/11/13 07:39, Bo Herrmannsen wrote:<br clear="none">>>> 90cm3 seems like a lot... does that
assume its hollow?<br clear="none">>>> <br clear="none">>>> /bo<br clear="none">>>> <br clear="none">>>> Den 27/11/2013 kl. 08.36 skrev Stuart Poulton:<br clear="none">>>> <br clear="none">>>>> Ok, taking the URL below, and making the following assumptions<br clear="none">>>>> <br clear="none">>>>> OpenTRV box is ~ 5.5cm x 5.5cm x 3cm<br clear="none">>>>> <br clear="none">>>>> This gives a swept volume of 90.75 cm3, at 10pence per cm3, total price is £9.75 + VAT<br clear="none">>>>> <br clear="none">>>>> I appreciate that 3d printing is great, but for that sort of price I can get a nice case that looks like this<br clear="none">>>>> <br clear="none">>>>> <a shape="rect" href="https://dl.dropboxusercontent.com/u/6014682/IMG_0434.JPG"
target="_blank">https://dl.dropboxusercontent.com/u/6014682/IMG_0434.JPG</a><br clear="none">>>>> <br clear="none">>>>> <br clear="none">>>>> Stuart<br clear="none">>>>> <br clear="none">>>>> <br clear="none">>>>> On 26/11/13 21:26, Bruno Girin wrote:<br clear="none">>>>>> I got some prints done by those guys before I had a 3D printer: <a shape="rect" href="http://www.3dprint-uk.co.uk/" target="_blank">http://www.3dprint-uk.co.uk/</a><br clear="none">>>>>> <br clear="none">>>>>> They are based in Brick Lane and the prints are of very good quality. The only downside is that they do any colour as long as it's white.<br clear="none">>>>>> <br clear="none">>>>>> <br clear="none">>>>>> On 26 November 2013 17:03, Damon Hart-Davis <<a shape="rect" ymailto="mailto:dhd@exnet.com"
href="mailto:dhd@exnet.com">dhd@exnet.com</a> <mailto:<a shape="rect" ymailto="mailto:dhd@exnet.com" href="mailto:dhd@exnet.com">dhd@exnet.com</a>>> wrote:<br clear="none">>>>>> <br clear="none">>>>>> Hi,<br clear="none">>>>>> <br clear="none">>>>>> I would like to have a small number of the current OpenTRV box<br clear="none">>>>>> design printed by (say) 2 different organisations in preparation<br clear="none">>>>>> for printing up 40 or more very soon for the trial, to find out<br clear="none">>>>>> who is reliable and produces good prints and is easy to deal with.<br clear="none">>>>>> <br clear="none">>>>>> Would you like to suggest one or more to test out in this way?<br clear="none">>>>>> Might be
commercial or not (eg TVRRUG).<br clear="none">>>>>> <br clear="none">>>>>> Rgds<br clear="none">>>>>> <br clear="none">>>>>> Damon<br clear="none">>>>>> <br clear="none">>>>>> <br clear="none">>>>>> <br clear="none">>>>>> <br clear="none">>>>>> -- <br clear="none">>>>>> Bruno<br clear="none">>>>>> Visit my weblog: <a shape="rect" href="http://brunogirin.blogspot.com/" target="_blank">http://brunogirin.blogspot.com</a><br clear="none">>>>>> <br clear="none">>>>>> <br clear="none">>>>>> _______________________________________________<br clear="none">>>>>> OpenTRV-dev mailing list<br clear="none">>>>>> <a shape="rect" ymailto="mailto:OpenTRV-dev@lists.opentrv.org.uk"
href="mailto:OpenTRV-dev@lists.opentrv.org.uk">OpenTRV-dev@lists.opentrv.org.uk</a><br clear="none">>>>>> <a shape="rect" href="http://lists.opentrv.org.uk/listinfo/opentrv-dev" target="_blank">http://lists.opentrv.org.uk/listinfo/opentrv-dev</a><div class="yqt0505192091" id="yqtfd50730"><br clear="none">>>>> _______________________________________________<br clear="none">>>>> OpenTRV-dev mailing list<br clear="none">>>>> <a shape="rect" ymailto="mailto:OpenTRV-dev@lists.opentrv.org.uk" href="mailto:OpenTRV-dev@lists.opentrv.org.uk">OpenTRV-dev@lists.opentrv.org.uk</a><br clear="none">>>>> <a shape="rect" href="http://lists.opentrv.org.uk/listinfo/opentrv-dev" target="_blank">http://lists.opentrv.org.uk/listinfo/opentrv-dev</a><br clear="none">>>> _______________________________________________<br clear="none">>>> OpenTRV-dev mailing list<br clear="none">>>> <a
shape="rect" ymailto="mailto:OpenTRV-dev@lists.opentrv.org.uk" href="mailto:OpenTRV-dev@lists.opentrv.org.uk">OpenTRV-dev@lists.opentrv.org.uk</a><br clear="none">>>> <a shape="rect" href="http://lists.opentrv.org.uk/listinfo/opentrv-dev" target="_blank">http://lists.opentrv.org.uk/listinfo/opentrv-dev</a><br clear="none">>> <br clear="none">>> _______________________________________________<br clear="none">>> OpenTRV-dev mailing list<br clear="none">>> <a shape="rect" ymailto="mailto:OpenTRV-dev@lists.opentrv.org.uk" href="mailto:OpenTRV-dev@lists.opentrv.org.uk">OpenTRV-dev@lists.opentrv.org.uk</a><br clear="none">>> <a shape="rect" href="http://lists.opentrv.org.uk/listinfo/opentrv-dev" target="_blank">http://lists.opentrv.org.uk/listinfo/opentrv-dev</a><br clear="none">> <br clear="none">> _______________________________________________<br clear="none">> OpenTRV-dev mailing list<br clear="none">> <a
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