Great sounds like a plan.<br><br>I see your wild Saturday night have come to an end as well. We have post man pat on the TV<br><br>Kieran.<br><br><div class="gmail_quote">On 12 November 2011 19:17, Blair Thompson <span dir="ltr"><<a href="mailto:mail@justblair.co.uk">mail@justblair.co.uk</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">I have a handsaw that has a metal cutting blade on it. Makes pretty quick<br>
work of steel<br>
<div class="im"><br>
Blair<br>
<br>
-----Original Message-----<br>
From: <a href="mailto:members-bounces@electronclub.org">members-bounces@electronclub.org</a><br>
[mailto:<a href="mailto:members-bounces@electronclub.org">members-bounces@electronclub.org</a>] On Behalf Of Kieran Wyse<br>
</div>Sent: 12 November 2011 19:12<br>
<div class="im">To: Discussion list for the Electron Club<br>
Subject: Re: [ELECTRON] Proposed new club + Arduino meet up<br>
<br>
</div><div><div></div><div class="h5">If no one has them lying around I picked up form b & Q, they seem to be the<br>
cheapest.<br>
<br>
<br>
<a href="http://www.diy.com/diy/jsp/bq/nav.jsp?action=detail&fh_secondid=9283910&fh_l" target="_blank">http://www.diy.com/diy/jsp/bq/nav.jsp?action=detail&fh_secondid=9283910&fh_l</a><br>
ocation=//catalog01/en_GB/categories%3C{9372015}/categories%3C{9372044}/cate<br>
gories%3C{9372215}/specificationsProductType=threaded_rods(I<br>
take it these are M8)<br>
<br>
<br>
If anyone has something to cut them with that would be great. I am not sure<br>
the cca would approve of me using an angle grinder. Otherwise they will have<br>
to wait to be cut at the next meeting.<br>
<br>
Kieran<br>
<br>
<br>
<br>
On 11 November 2011 21:12, Blair Thompson <<a href="mailto:mail@justblair.co.uk">mail@justblair.co.uk</a>> wrote:<br>
<br>
> I will look forward to seeing what you get done.<br>
><br>
> I have now completed a few of the smaller plastic parts. I was<br>
> planning to tackle the vertexes next (that is if no one has started<br>
> them yet?). One because they are less complex parts (and I am still<br>
> honing my printing<br>
> skills) and two because it would mean that we were only the 8mm rods<br>
> away from getting something started build wise.<br>
><br>
> <a href="http://goshg.org.uk/index.php/reprap" target="_blank">http://goshg.org.uk/index.php/reprap</a> you can see on the link that we<br>
> have gathered quite a few of the components and others are on order.<br>
><br>
> I know in the meeting a few people mentioned they may have threaded rod.<br>
> Can everyone have a look and see if the can update the BOM with what<br>
> they have?<br>
><br>
> Blair<br>
><br>
> -----Original Message-----<br>
> From: <a href="mailto:members-bounces@electronclub.org">members-bounces@electronclub.org</a><br>
> [mailto:<a href="mailto:members-bounces@electronclub.org">members-bounces@electronclub.org</a>] On Behalf Of Thomas Parry<br>
> Sent: 10 November 2011 16:27<br>
> To: Discussion list for the Electron Club<br>
> Subject: Re: [ELECTRON] Proposed new club + Arduino meet up<br>
><br>
> Ramps does have a natural advantage that one of us is familiar with it<br>
> and it seems like a well respected choice so I'll just go ahead with them.<br>
><br>
> The more surface mount components the better from my perspective as it<br>
> make the board production easier, less holes to drill, and the<br>
> components are usually cheaper.<br>
><br>
> I will keep you guys updated with my progress and will hopefully have<br>
> something to bring to the meeting next week.<br>
><br>
> Tom<br>
><br>
> On Wed, Nov 9, 2011 at 10:36 PM, Blair Thompson <<a href="mailto:mail@justblair.co.uk">mail@justblair.co.uk</a><br>
> >wrote:<br>
><br>
> > Hi Tom<br>
> ><br>
> > I can't say that I am totally a ramps fanboy. I favour it for a<br>
> > couple of reasons though...<br>
> ><br>
> > 1. I know it (yep that is the main reason) 2. SD support 3. Good<br>
> > support from the firmware point of view. (ie Marlin, Sprinter,<br>
> > etc.)<br>
> ><br>
> > There are others though and some may be easier to manufacture.<br>
> > Sanguinololu<br>
> > I believe can be made to operate from SD. I would have to check to<br>
> > see what firmwares it can support.<br>
> ><br>
> > As for ramps 1.4 If you enjoy working on surface mount stuff this<br>
> > is one route to go. Ramps 1.3 is through hole and has as far as I<br>
> > can tell all the relevant features...<br>
> ><br>
> ><br>
> > -----Original Message-----<br>
> > From: <a href="mailto:members-bounces@electronclub.org">members-bounces@electronclub.org</a><br>
> > [mailto:<a href="mailto:members-bounces@electronclub.org">members-bounces@electronclub.org</a>] On Behalf Of Thomas Parry<br>
> > Sent: 09 November 2011 20:26<br>
> > To: Discussion list for the Electron Club<br>
> > Subject: Re: [ELECTRON] Proposed new club + Arduino meet up<br>
> ><br>
> > Looking at the options for the electronics, I'm not really sure what<br>
> > path to go down. Blair, I know you're a fan of the RAMPS boards,<br>
> > what about if I make a RAMPS 1.4 board? What are peoples opinions on<br>
> > the best board for me to go ahead and make?<br>
> ><br>
> > Tom<br>
> ><br>
> > On Tue, Nov 8, 2011 at 10:48 PM, Blair Thompson<br>
> > <<a href="mailto:mail@justblair.co.uk">mail@justblair.co.uk</a><br>
> > >wrote:<br>
> ><br>
> > > As I said in my ps. I have just received a bundle of nuts and<br>
> > > bolts, which should cover the needs in that department. I have<br>
> > > marked them as on order on the RepRap page at goshg. I should<br>
> > > change that to yes when I get a chance.<br>
> > ><br>
> > > I have also been working on some ABS prints for the printer as well.<br>
> > > I am still refining the hole sizes for the bar clamps. What I<br>
> > > have made so far is probably useable, but I would be happier if I<br>
> > > can get the tolerances down a little before attempting more critical<br>
prints.<br>
> > ><br>
> > > I have been using parts from Greg Frost's repository for this as<br>
> > > he has a more robust looking Y bracket. I will probably use one<br>
> > > of the close but no cigar prints to upgrade my own printer.<br>
> > ><br>
> > > As for changing nozzles on the fly? The hot end is bolted into<br>
> > > the extruder (if using a Wades which is the current fashion) with<br>
> > > two 3mm bolts.<br>
> > > Changing the nozzles over is probably going to damage the hot end<br>
> > > if done frequently, but changing hot ends is certainly possible if<br>
> > > fiddly. If it were me I would be tempted to carry two<br>
> > > extruder/x-carriage/extruder motor/hot-end combos for an easy swap<br>
> > > over. Use a durable connector to make the electronics easy to<br>
> > > swap and Bob is indeed your mammies sister's ball and chain.<br>
> > ><br>
> > > For what we are hoping to do, sticking with the standard sizes<br>
> > > would make calibration that bit easier especially if we use the<br>
> > > Pronterface/Sfact/marlin firmware options. You can get pretty<br>
> > > good<br>
> > prints<br>
> > > after a pretty simple calibration routine. It's only when you are<br>
> > trying<br>
> > > to make mechanical parts that you need more precision.<br>
> > ><br>
> > > Blair<br>
> > ><br>
> > > -----Original Message-----<br>
> > > From: <a href="mailto:members-bounces@electronclub.org">members-bounces@electronclub.org</a><br>
> > > [mailto:<a href="mailto:members-bounces@electronclub.org">members-bounces@electronclub.org</a>] On Behalf Of Kieran Wyse<br>
> > > Sent: 08 November 2011 22:29<br>
> > > To: Discussion list for the Electron Club<br>
> > > Subject: Re: [ELECTRON] Proposed new club + Arduino meet up<br>
> > ><br>
> > > Once the reprap is built we can certainly thing about enclosing<br>
> > > it, it may well improve build quality. As to the fidelity it does<br>
> > > seem just from visual inspection of the parts printed that the<br>
> > > limiting factor seems to be the size of the nozzle. Which begs the<br>
> > > question is there are any way to change the nozzle size on the<br>
> > > fly? If it were possible and I do not know how I think it would<br>
> > > likely turn the reprap into a VERY capable machine.<br>
> > ><br>
> > > I have been told that the motors are going to take another 11 days<br>
> > > to arrive. They should be here by the end of the month i reckon.<br>
> > > Has anyone else had more progress than myself?<br>
> > ><br>
> > > Kieran.<br>
> > ><br>
> > > On 8 November 2011 21:56, Blair Thompson <<a href="mailto:mail@justblair.co.uk">mail@justblair.co.uk</a>> wrote:<br>
> > ><br>
> > > > I have seen other reprap experimenters talking about using<br>
> enclosures.<br>
> > > > I for the life of me cant remember whom. What I do seem to<br>
> > > > recall was that they were using the heated bed as the main<br>
> > > > heating source for the enclosure and then using a temperature<br>
> > > > controlled fan to maintain the ambient temperature inside the<br>
> > > > case. I seem to remember a temperature of around 40c as being<br>
> > > > in the ballpark as to<br>
> > what<br>
> > was useful.<br>
> > > ><br>
> > > > If I remember quickly, what the experimenters were trying to<br>
> > > > achieve was reduction of distortion in taller models. Warping<br>
> > > > occurs sometimes when parts of the model at the base cool while<br>
> > > > those at the top i.e. the most recently printed are stil hot.<br>
> > > > An enclosure serves to reduce the difference in temperature from<br>
> > > > the most recently printed parts of the model to the least<br>
> > > > recently<br>
> printed.<br>
> > > ><br>
> > > > I have been trying to perfect my machine and have found that fan<br>
> > > > cooling of the filament as it is laid down makes a difference to<br>
> > > > the quality of the prints in either ABS and PLA. For ABS<br>
> > > > however I also have to lay a skirt which reduces the cooling at<br>
> > > > the bottom of the model from either my cooling fan or from the<br>
> > > > movement of the Y<br>
> axis.<br>
> > > > I was getting lifts from the build plate before I started using<br>
> > > > the skirt. I don't know if this will improve PLA prints as I<br>
> > > > have not tried it yet, Imanaged to get good prints without it.<br>
> > > ><br>
> > > > The layer thickness you reference for the Reprap of 0.3mm<br>
> > > > depends on the extrusion nozzle aperture width. With a 0.5mm<br>
> > > > width and 3mm filament the layer thickness works out at about<br>
> > > > 0.4mm using the sfact software as a slicer. You can get lower<br>
> > > > by using different filament thickness and different nozzle aperture<br>
widths.<br>
> > > > What you gain in fidelity you lose in build speeds though.<br>
> > > ><br>
> > > > One idea I had was to not build the reprap using triangular<br>
> > > > vertexes, but rather to build an MDF cube but use the Prusa<br>
> > > > dimensions and mechanical parts. This would certainly allow<br>
> > > > experimentation in terms of retaining some ambient heat around<br>
> > > > the<br>
> > models being created.<br>
> > > ><br>
> > > > Regards<br>
> > > ><br>
> > > > Blair.<br>
> > > ><br>
> > > > Ps I just got a delivery of various screws and bolts that I needed.<br>
> > > > I of course ordered a few extras. All but the M8 washers<br>
> > > > arrived<br>
> > today.<br>
> > > ><br>
> > > ><br>
> > > ><br>
> > > > -----Original Message-----<br>
> > > > From: <a href="mailto:members-bounces@electronclub.org">members-bounces@electronclub.org</a><br>
> > > > [mailto:<a href="mailto:members-bounces@electronclub.org">members-bounces@electronclub.org</a>] On Behalf Of Brian<br>
> > > > Loudon<br>
> > > > Sent: 08 November 2011 21:29<br>
> > > > To: Discussion list for the Electron Club<br>
> > > > Subject: Re: [ELECTRON] Proposed new club + Arduino meet up<br>
> > > ><br>
> > > > Hi to those interested in RepRaps, I came across this patent<br>
> > > > relating to temperature and flow control for professional Fused<br>
> > > > Deposition Modelling systems ;<br>
> > > ><br>
> > > ><br>
> > > > <a href="http://www.google.co.uk/patents?hl=en&lr=&vid=USPAT5866058&id=Og" target="_blank">http://www.google.co.uk/patents?hl=en&lr=&vid=USPAT5866058&id=Og</a><br>
> > > > UX<br>
> > > > AA<br>
> > > > AA<br>
> > > > EBAJ&o<br>
> > > ><br>
> > > > i=fnd&dq=stratasys+patent+fused+deposition+modelling&printsec=ab<br>
> > > > st<br>
> > > > ra<br>
> > > > ct<br>
> > > > #v=one<br>
> > > > page&q&f=false<<a href="http://www.google.co.uk/patents?hl=en&lr=&vid=USP" target="_blank">http://www.google.co.uk/patents?hl=en&lr=&vid=USP</a><br>
> > > > AT<br>
> > > > 58<br>
> > > > 66<br>
> > > > 058&id=OgUXAAAAEBAJ&o%0Ai=fnd&dq=stratasys+patent+fused+depositi<br>
> > > > on<br>
> > > > +m od elling&printsec=abstract#v=one%0Apage&q&f=false><br>
> > > ><br>
> > > > The stratasys Dimension printers achieve .178 mm, .254 mm or .33<br>
> > > > mm layer thicknesses,<br>
> > > ><br>
> > > > <a href="http://www.dimensionprinting.com/3d-printers/3d-printing-compari" target="_blank">http://www.dimensionprinting.com/3d-printers/3d-printing-compari</a><br>
> > > > so<br>
> > > > n_<br>
> > > > ch<br>
> > > > <a href="http://art.as" target="_blank">art.as</a><br>
> > > > px<br>
> > > ><br>
> > > > the reprap is quoted as a layer thickness of 0.3<br>
> > > > <a href="http://reprap.org/wiki/Mendel" target="_blank">http://reprap.org/wiki/Mendel</a><br>
> > > ><br>
> > > > The patent above emphasises the importance of temperature and<br>
> > > > the professional machines all have enclosures, makes me wonder<br>
> > > > if the reprap performance can be optimized?<br>
> > > ><br>
> > > > cheers<br>
> > > ><br>
> > > > Brian<br>
> > > ><br>
> > > ><br>
> > > ><br>
> > > > _______________________________________________<br>
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