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<?xml version="1.0" encoding="UTF-8"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/"> <channel> <title>Powderbed Machine</title> <description>Some time ago I Spent some time working through the various aspects of building a powderbed printer, I got to the stage where I think I had solved most of the tool chain, software and hardware, then came across [url=http://homemade3dprinter.blogspot.com/]Fogassa's[/url] work, so I decided not to persue it, as he had done such a good job, but recently someone asked me for help building a powder printer, this has revived the old project, it would be good to do what Fogassa has done but under the Reprap umbrella. When I first wrote the software it used parallel port, no printers use this anymore, so the first step is to update the software,1..slice2..recoat3..print The old version used Pic mu, but Arduino will be used for the interface board Find a simple printer that is as dumb as possible with cartridges that are fillable Time is always a problem so progress may be slow, but from what I have found a number of people have worked onpowder printers, but there does not seem to be a site similar to reprap that documents the whole process of building one. I intend to post software (although not finished) to start the project.</description> <link>https://reprap.org/forum/read.php?153,71274,71274#msg-71274</link> <lastBuildDate>Mon, 13 May 2024 03:08:59 -0400</lastBuildDate> <generator>Phorum 5.2.23</generator> <item> <guid>https://reprap.org/forum/read.php?153,71274,102075#msg-102075</guid> <title>Re: Powderbed Machine</title> <link>https://reprap.org/forum/read.php?153,71274,102075#msg-102075</link> <description><![CDATA[ ... inkscape for example can convert/export SVG's to any format and you can run it in batch-mode ... see the <a href="http://wiki.evilmadscience.com/Installing_software" target="_blank" rel="nofollow">egg-bot software</a> for more infos ...]]></description> <dc:creator>VDX</dc:creator> <category>Powder Printing and Selective Laser Sintering</category> <pubDate>Thu, 20 Oct 2011 03:56:50 -0400</pubDate> </item> <item> <guid>https://reprap.org/forum/read.php?153,71274,102063#msg-102063</guid> <title>Re: Powderbed Machine</title> <link>https://reprap.org/forum/read.php?153,71274,102063#msg-102063</link> <description><![CDATA[ I know <a href="http://fabmetheus.crsndoo.com/" target="_blank" rel="nofollow">Skeinforge</a> can output to SVG files.<br />But there is another slicer that I think does this already, I know one RepRapper did a lot of work on making prostethic arms and worked on using a minimum of plastic and how to do small holes.<br />He would edit graphic files of each level so his slicer must output them in some format.]]></description> <dc:creator>rhmorrison</dc:creator> <category>Powder Printing and Selective Laser Sintering</category> <pubDate>Thu, 20 Oct 2011 02:08:45 -0400</pubDate> </item> <item> <guid>https://reprap.org/forum/read.php?153,71274,102042#msg-102042</guid> <title>Re: Powderbed Machine</title> <link>https://reprap.org/forum/read.php?153,71274,102042#msg-102042</link> <description><![CDATA[ Hi there new to this form <br />but it seem you have what im looking for (:D or kinda<br />im looking for a bit of software that will take a step file (or any cad format) and slice it over and over returning each slice as a JPG and send them to a standard printer to print over and over again <br />any help would be greatly appreciated regards Ross Jacobs]]></description> <dc:creator>Ross Jacobs</dc:creator> <category>Powder Printing and Selective Laser Sintering</category> <pubDate>Wed, 19 Oct 2011 21:33:52 -0400</pubDate> </item> <item> <guid>https://reprap.org/forum/read.php?153,71274,93603#msg-93603</guid> <title>Re: Powderbed Machine</title> <link>https://reprap.org/forum/read.php?153,71274,93603#msg-93603</link> <description><![CDATA[ Until I get some time to add to the wiki look here, it may help, [<a href="http://www.freeformz.co.uk/LNE/LightNEasy.php?page=recoater" target="_blank" rel="nofollow">www.freeformz.co.uk</a>]]]></description> <dc:creator>johnrpm</dc:creator> <category>Powder Printing and Selective Laser Sintering</category> <pubDate>Wed, 10 Aug 2011 01:15:40 -0400</pubDate> </item> <item> <guid>https://reprap.org/forum/read.php?153,71274,93528#msg-93528</guid> <title>Re: Powderbed Machine</title> <link>https://reprap.org/forum/read.php?153,71274,93528#msg-93528</link> <description><![CDATA[ johnrpm Wrote:<br />-------------------------------------------------------<br />> have<br />> you looked at <br />> [<a href="http://reprap.org/wiki/A5_Powder_bed_printer" target="_blank" rel="nofollow">reprap.org</a>]<br /><br /><br />Well, that is the unit I was referring to, so yes. The mention of the recoater is above, but the file for making it is not on the wiki page.]]></description> <dc:creator>downix</dc:creator> <category>Powder Printing and Selective Laser Sintering</category> <pubDate>Tue, 09 Aug 2011 09:35:49 -0400</pubDate> </item> <item> <guid>https://reprap.org/forum/read.php?153,71274,93497#msg-93497</guid> <title>Re: Powderbed Machine</title> <link>https://reprap.org/forum/read.php?153,71274,93497#msg-93497</link> <description><![CDATA[ I spent most of last year developing a system for work based on sand and sodium silicate, but I am not allowed to talk about it,<br />a system exists, prometal i think its called, that builds sand moulds, something called duran or thuran is an alternative to SS,<br />also this is interesting [<a href="http://www.lights.ro/2011/3d-bio-printer/" target="_blank" rel="nofollow">www.lights.ro</a>], have you looked at <br />[<a href="http://reprap.org/wiki/A5_Powder_bed_printer" target="_blank" rel="nofollow">reprap.org</a>]]]></description> <dc:creator>johnrpm</dc:creator> <category>Powder Printing and Selective Laser Sintering</category> <pubDate>Tue, 09 Aug 2011 01:25:48 -0400</pubDate> </item> <item> <guid>https://reprap.org/forum/read.php?153,71274,93495#msg-93495</guid> <title>Re: Powderbed Machine</title> <link>https://reprap.org/forum/read.php?153,71274,93495#msg-93495</link> <description><![CDATA[ I was just looking at this, having an idea for a powder printer when I noticed that there was no file for the recoater, but it was mentioned above.<br /><br />I was working with some sodium silicate for a mold, using blasts of CO2 to harden it, when a thought hit me that using sodium silicate as a liquid, applying it to the surface of a sand based powder and then hitting that with a tiny bit of CO2 to harden it in place could allow for an automated, if not fast, method for my molds. So, hit here to look into it. My concern is the recoater, to get a flat layer.]]></description> <dc:creator>downix</dc:creator> <category>Powder Printing and Selective Laser Sintering</category> <pubDate>Tue, 09 Aug 2011 00:15:57 -0400</pubDate> </item> <item> <guid>https://reprap.org/forum/read.php?153,71274,84246#msg-84246</guid> <title>Re: Powderbed Machine</title> <link>https://reprap.org/forum/read.php?153,71274,84246#msg-84246</link> <description><![CDATA[ No nibbles yet.<br /><br /><br />Madscifi pointed this out, [<a href="http://open3dp.me.washington.edu/" target="_blank" rel="nofollow">open3dp.me.washington.edu</a>]<br />this will advance printhead work for 3d printing and help development in this area, a big thank you from me for sharing it,<br />reading the pdf, it explains some of the mysteries of firing printheads.]]></description> <dc:creator>johnrpm</dc:creator> <category>Powder Printing and Selective Laser Sintering</category> <pubDate>Thu, 19 May 2011 03:40:28 -0400</pubDate> </item> <item> <guid>https://reprap.org/forum/read.php?153,71274,84140#msg-84140</guid> <title>Re: Powderbed Machine</title> <link>https://reprap.org/forum/read.php?153,71274,84140#msg-84140</link> <description><![CDATA[ <i>can anyone recommend which stepper library to use,</i><br />If you don't get any nibbles, try reprap-dev?]]></description> <dc:creator>SebastienBailard</dc:creator> <category>Powder Printing and Selective Laser Sintering</category> <pubDate>Wed, 18 May 2011 03:42:46 -0400</pubDate> </item> <item> <guid>https://reprap.org/forum/read.php?153,71274,84128#msg-84128</guid> <title>Re: Powderbed Machine</title> <link>https://reprap.org/forum/read.php?153,71274,84128#msg-84128</link> <description><![CDATA[ <b>Your recommendation needed Please</b><br /><br />I am using the standard stepper library for the arduino, it works well, but other library's, accelstepper and lab3, have extra features that I think would be good, (ramping, power reduction, continuous run etc), can anyone recommend which stepper library to use, I really like the idea of lowering the power to the motor whilst it is not in use, also continuous run whilst a button is pressed.<br /><br />P.S I have received the reed switches so will fit them soon, also bought some of these [<a href="http://www.rapidonline.com/sku.aspx?tier1=Cables+%26+Connectors&tier2=Connectors+-+Terminal+Blocks&tier3=Terminal+Strips&tier4=Pluggable+terminal+strips&moduleno63850&catref=21-2496" target="_blank" rel="nofollow">www.rapidonline.com</a>] I had not seen them before, look usefull.]]></description> <dc:creator>johnrpm</dc:creator> <category>Powder Printing and Selective Laser Sintering</category> <pubDate>Wed, 18 May 2011 02:13:50 -0400</pubDate> </item> <item> <guid>https://reprap.org/forum/read.php?153,71274,83817#msg-83817</guid> <title>Re: Powderbed Machine</title> <link>https://reprap.org/forum/read.php?153,71274,83817#msg-83817</link> <description><![CDATA[ The powder bin steppers and recoater have been on test all weekend, and I am now confident with the design, at first with the salvaged steppers the darlingtons were getting a bit warm, so I used the trick of stacking them, they only get slightly warm now, next I need to fit limit switches on the recoater and both bins top and bottom, I shall try reed switches, as they are cheaper and easier to wire, I will do a video to show it all running, but really must have a clean up first.<br /><br /><br />P.S I took the plunge a couple of weeks ago and bought a HP1000 for £35, despite having bought a HP2050 ( thought the scanner may add complications), today I saw the HP 1000 in asda (wallmart) for £19, isn't that just typical.]]></description> <dc:creator>johnrpm</dc:creator> <category>Powder Printing and Selective Laser Sintering</category> <pubDate>Sun, 15 May 2011 14:12:31 -0400</pubDate> </item> <item> <guid>https://reprap.org/forum/read.php?153,71274,82220#msg-82220</guid> <title>Re: Powderbed Machine</title> <link>https://reprap.org/forum/read.php?153,71274,82220#msg-82220</link> <description><![CDATA[ I was looking at an old overhead projector, and wondering if the general layout would work with the LCD, but instead of the optics enlarging they reduced the image size, various bulbs could be tried and the resolution would be increased, in fact the image could be variable size.<br />I have my hands on an ancient digital projector, with LCD screen, (size of a bus) so may use it for some trials, I did intend to use it for a structured light scanner, the workshop is now full to bursting.]]></description> <dc:creator>johnrpm</dc:creator> <category>Powder Printing and Selective Laser Sintering</category> <pubDate>Thu, 28 Apr 2011 03:58:34 -0400</pubDate> </item> <item> <guid>https://reprap.org/forum/read.php?153,71274,82109#msg-82109</guid> <title>Re: Powderbed Machine</title> <link>https://reprap.org/forum/read.php?153,71274,82109#msg-82109</link> <description><![CDATA[ NuclearNerd , thanks for the info, I have been doing the electronics for the powderbed so time limited, but I had a bit of an accident whilst ironing the board, just knocked the digital photoframe with the iron and chipped the corner, so it no longer works, (you can imagine the expletives) but have done the monitor for tests, I must find a use for the backlights.<br /><br />I was wondering how to quantify the amount of UV getting through the lcd, if I had some paint that glows under uv light, then the brightness may indicate amount of uv getting through, I tried this with a security pen and uv led, the text was faintly visible, but the led is very low power, which seems to indicate that UV is getting through.<br /><br />The reflectance meter measures approx 1/20 th of light getting through, ie, 20mv direct and 1mv through lcd using the bug killer, which is 4watts.<br /><br />I have an old strobe light, wonder if they emit UV ?, I am concentrating on the powderbed, so the lcd thing will be as and when time permits,]]></description> <dc:creator>johnrpm</dc:creator> <category>Powder Printing and Selective Laser Sintering</category> <pubDate>Wed, 27 Apr 2011 06:27:09 -0400</pubDate> </item> <item> <guid>https://reprap.org/forum/read.php?153,71274,81526#msg-81526</guid> <title>Re: Powderbed Machine</title> <link>https://reprap.org/forum/read.php?153,71274,81526#msg-81526</link> <description><![CDATA[ You could also buy a <a href="http://en.wikipedia.org/wiki/Mercury-vapor_lamp#Ultraviolet_hazards" target="_blank" rel="nofollow">Mercury Vapour (aka High Intensity Discharge aka Metal Halide) bulb</a>, but you would need to find one which does not have a UV filter. I see a couple on bulbs.com for cheap that fit standard edison sockets, though you'd need a fixture with a proper ballast. <br /><br />There are black light flourescent bulbs available too, but I can't find any over 60W. (Although, 60W of UV only might be as effective at curing resin as 300W of broad spectrum light. That could be worth a test too.)<br /><br />Whether you use HID bulbs, or Halogen bulbs without the filter, be VERY careful not to expose yourself to the UVB, UVC light. I am reading that you can sunburn your skin and damage your eyes.<br /><br />Another question will be just how much of the UV will be absorbed by the glass and plastic of the LCD. I suspect quite a lot. If so, there won't be much left to cure the resin, and the absorbed UV will eventually turn the plastic brown and brittle. LCDs are getting cheap enough though that it's worth testing!<br /><br />Alternatively there might be a resin that will cure at near UV visible wavelengths, in which case we wouldn't could use a filtered halogen bulb without worrying too much about damage (except for heat).]]></description> <dc:creator>NuclearNerd</dc:creator> <category>Powder Printing and Selective Laser Sintering</category> <pubDate>Wed, 20 Apr 2011 22:44:27 -0400</pubDate> </item> <item> <guid>https://reprap.org/forum/read.php?153,71274,81521#msg-81521</guid> <title>Re: Powderbed Machine</title> <link>https://reprap.org/forum/read.php?153,71274,81521#msg-81521</link> <description><![CDATA[ I was thinking halogen, yeah. You can get a 300w floor lamp from walmart for like $20. It's my understanding that halogen bulbs throw off a lot of UV. (you might need a more specialized UV bulb, but this would be a good start. I'll look for a cheap way to measure the uv flux)]]></description> <dc:creator>NuclearNerd</dc:creator> <category>Powder Printing and Selective Laser Sintering</category> <pubDate>Wed, 20 Apr 2011 21:51:33 -0400</pubDate> </item> <item> <guid>https://reprap.org/forum/read.php?153,71274,81501#msg-81501</guid> <title>Re: Powderbed Machine</title> <link>https://reprap.org/forum/read.php?153,71274,81501#msg-81501</link> <description><![CDATA[ <i>Get a 300W floor lamp (or shop light).</i> is this halogen???]]></description> <dc:creator>johnrpm</dc:creator> <category>Powder Printing and Selective Laser Sintering</category> <pubDate>Wed, 20 Apr 2011 17:38:42 -0400</pubDate> </item> <item> <guid>https://reprap.org/forum/read.php?153,71274,81491#msg-81491</guid> <title>Re: Powderbed Machine</title> <link>https://reprap.org/forum/read.php?153,71274,81491#msg-81491</link> <description><![CDATA[ Great John. I would suggest you perform the following simple test: Load a test picture into the photo frame. Get a 300W floor lamp (or shop light). Remove the UV filter (piece of glass) from the lamp. Set the photo frame a few inches above the light (you'll have to find a distance that doesn't get too hot). Turn the whole contraption on and check back every couple of hours. See if the image on the frame degrades. I'd be really interested in hearing the results!]]></description> <dc:creator>NuclearNerd</dc:creator> <category>Powder Printing and Selective Laser Sintering</category> <pubDate>Wed, 20 Apr 2011 14:02:17 -0400</pubDate> </item> <item> <guid>https://reprap.org/forum/read.php?153,71274,81475#msg-81475</guid> <title>Re: Powderbed Machine</title> <link>https://reprap.org/forum/read.php?153,71274,81475#msg-81475</link> <description><![CDATA[ I know this is the wrong place to post this but I have been doing some stuff with LCD screens whilst waiting for parts to arrive for the powderbed, [<a href="http://reprap.org/wiki/Experiments_with_lcd" target="_blank" rel="nofollow">reprap.org</a>]<br />Please join in and add to the page.]]></description> <dc:creator>johnrpm</dc:creator> <category>Powder Printing and Selective Laser Sintering</category> <pubDate>Wed, 20 Apr 2011 10:32:53 -0400</pubDate> </item> <item> <guid>https://reprap.org/forum/read.php?153,71274,81326#msg-81326</guid> <title>Re: Powderbed Machine</title> <link>https://reprap.org/forum/read.php?153,71274,81326#msg-81326</link> <description><![CDATA[ I have done a pcb in fritzing, (no laughing), I realised why it was crashing, the auto-router dos not rip up, so put multiple wires on top of each other, after finding my mistake it does not crash, I must say I do like it, the parts bin or library has the stuff I use and have in stock (not all of course) whereas designspark is a nightmare trying to find parts, the library is just to big, OK for serious stuff but fritzing is for me, although I have a paid for version of circuit wizard.<br /><br />The pcb has ratnest wires that I can not delete, although they do not appear on the pdf???.<br /><br />The PCD has two octal darlingtons, one for each motor, with pins doubled up to take 1 amp per phase, the l293 is for the dc motor and 3 transistors for driving outputs, one of which is a solenoid.<br /><br />I spent a whole day trying to isolation mill a board using gerber output from fritzing and line grinder for gcode, I have not tried this approach before, normally use laser and hot iron, the results are sort of OK, but not as good as hoped, I do not have time to perfect my technique at present so will go back to hot iron for now.<br /><br />If you see anything I have missed or is wrong please comment.]]></description> <dc:creator>johnrpm</dc:creator> <category>Powder Printing and Selective Laser Sintering</category> <pubDate>Tue, 19 Apr 2011 07:33:15 -0400</pubDate> </item> <item> <guid>https://reprap.org/forum/read.php?153,71274,80599#msg-80599</guid> <title>Re: Powderbed Machine</title> <link>https://reprap.org/forum/read.php?153,71274,80599#msg-80599</link> <description><![CDATA[ This makes interesting reading, [<a href="http://open3dp.me.washington.edu/2011/04/scorching-the-3dp-earth/#more-1812" target="_blank" rel="nofollow">open3dp.me.washington.edu</a>]<br />it seems that the patents are running out on powderbed printing from this article, although they seem to be trying for others.]]></description> <dc:creator>johnrpm</dc:creator> <category>Powder Printing and Selective Laser Sintering</category> <pubDate>Wed, 13 Apr 2011 03:13:39 -0400</pubDate> </item> <item> <guid>https://reprap.org/forum/read.php?153,71274,80545#msg-80545</guid> <title>Re: Powderbed Machine</title> <link>https://reprap.org/forum/read.php?153,71274,80545#msg-80545</link> <description><![CDATA[ I am working on the interface board, the plan is to use octal darlingtons for the steppers and l293 for the dc motor, driven by a mega, mounted in a control box which will allow for machine setup in manual mode, I am using fritzing but it seems to crash often, I will post the circuit when done for comment.<br /><br />I have got a lcd from the scrap bin, works but dim, so may be a<br /> backlight problem, I want to see if uv will pass through and how much, I have a uv c light source, bug killer, any suggestions for a better uv source.]]></description> <dc:creator>johnrpm</dc:creator> <category>Powder Printing and Selective Laser Sintering</category> <pubDate>Tue, 12 Apr 2011 15:30:57 -0400</pubDate> </item> <item> <guid>https://reprap.org/forum/read.php?153,71274,80255#msg-80255</guid> <title>Re: Powderbed Machine</title> <link>https://reprap.org/forum/read.php?153,71274,80255#msg-80255</link> <description><![CDATA[ That Just goes to show ........ I am a fool all year round, not just one day of the year.]]></description> <dc:creator>johnrpm</dc:creator> <category>Powder Printing and Selective Laser Sintering</category> <pubDate>Mon, 11 Apr 2011 03:10:03 -0400</pubDate> </item> <item> <guid>https://reprap.org/forum/read.php?153,71274,80237#msg-80237</guid> <title>Re: Powderbed Machine</title> <link>https://reprap.org/forum/read.php?153,71274,80237#msg-80237</link> <description><![CDATA[ The printing in wood link turned out to be a April fools joke. Open3dp released a real recipe for printing with wood on April 5th.]]></description> <dc:creator>madscifi</dc:creator> <category>Powder Printing and Selective Laser Sintering</category> <pubDate>Sun, 10 Apr 2011 22:13:00 -0400</pubDate> </item> <item> <guid>https://reprap.org/forum/read.php?153,71274,80048#msg-80048</guid> <title>Re: Powderbed Machine</title> <link>https://reprap.org/forum/read.php?153,71274,80048#msg-80048</link> <description><![CDATA[ Seen this on the interweb, wood dust used to make parts similar to MDF on a 3d printer, <a href="http://fabbaloo.com/blog/2011/4/1/3d-print-objects-in-wood.html" target="_blank" rel="nofollow">link</a><br />This area is where the scratch built piezo head may be useful in the future, with some more development that is.]]></description> <dc:creator>johnrpm</dc:creator> <category>Powder Printing and Selective Laser Sintering</category> <pubDate>Sat, 09 Apr 2011 06:21:30 -0400</pubDate> </item> <item> <guid>https://reprap.org/forum/read.php?153,71274,79898#msg-79898</guid> <title>Re: Powderbed Machine</title> <link>https://reprap.org/forum/read.php?153,71274,79898#msg-79898</link> <description><![CDATA[ <blockquote class="bbcode"><div><small>Quote<br /></small><strong></strong><br />Taking the industrial market as a lead, powder laser printers seem to be very popular, which leads me to believe that UV curing resins still have many issues. Probably resin cost / resin stability and machine running costs.</div></blockquote><br />Even at $500/kg, resin costs are almost neglibile for the industrial level. The problem common to all resins is, you can't take finished parts right out of the machine and use them. Coming out of the machine, parts made from resin drip, need to be washed, need to be UV-postcured. So you have to use quite some chemical equipment, wear gloves, not exactly convenient for an office printer.]]></description> <dc:creator>Traumflug</dc:creator> <category>Powder Printing and Selective Laser Sintering</category> <pubDate>Fri, 08 Apr 2011 04:19:08 -0400</pubDate> </item> <item> <guid>https://reprap.org/forum/read.php?153,71274,79774#msg-79774</guid> <title>Re: Powderbed Machine</title> <link>https://reprap.org/forum/read.php?153,71274,79774#msg-79774</link> <description><![CDATA[ <i>YES, but then you don't need to buy a new one</i> <b>True</b>, we likes a bargain. :)<br /><br /><br /><br /><i>have applications for many machine types. What type of printing are you going for, laser or some sort of wet ink cartridge printing?</i> <br /><br />I was thinking of using a standard low cost printer, I have bought a HP2050 for £35 for the job,( now on offer at £30, typical) <br />I wanted one that is in current production so others could use it, initially use the recipe from open3dp, then look into polymer powders fused with IR lamp, then maybe have scratch built piezo printhead on an XY plotter for thicker binders, then maybe<br />cobble together a laser, but I have learned not to plan to far ahead cause things change.]]></description> <dc:creator>johnrpm</dc:creator> <category>Powder Printing and Selective Laser Sintering</category> <pubDate>Thu, 07 Apr 2011 09:26:29 -0400</pubDate> </item> <item> <guid>https://reprap.org/forum/read.php?153,71274,79765#msg-79765</guid> <title>Re: Powderbed Machine</title> <link>https://reprap.org/forum/read.php?153,71274,79765#msg-79765</link> <description><![CDATA[ There is a thread about this machine in the Resin photopolymer section. The projectors are about £115 I think. It does look very nice<br /><br />Taking the industrial market as a lead, powder laser printers seem to be very popular, which leads me to believe that UV curing resins still have many issues. Probably resin cost / resin stability and machine running costs. I am following your machine wiki with interest, Your powder boxes are particularly nice and have applications for many machine types. What type of printing are you going for, laser or some sort of wet ink cartridge printing?]]></description> <dc:creator>martinprice2004</dc:creator> <category>Powder Printing and Selective Laser Sintering</category> <pubDate>Thu, 07 Apr 2011 06:31:41 -0400</pubDate> </item> <item> <guid>https://reprap.org/forum/read.php?153,71274,79754#msg-79754</guid> <title>Re: Powderbed Machine</title> <link>https://reprap.org/forum/read.php?153,71274,79754#msg-79754</link> <description><![CDATA[ <blockquote class="bbcode"><div><small>Quote<br /></small><strong>johnrpm</strong><br />he thought of spending all that money on a DLP, then taking it apart makes me have a cold sweat.</div></blockquote><br />YES, but then you don't need to buy a new one. With luck you can find one where what you need works but is otherwise damaged that could be purchased at a low price over EBay. Just a thought...]]></description> <dc:creator>rhmorrison</dc:creator> <category>Powder Printing and Selective Laser Sintering</category> <pubDate>Thu, 07 Apr 2011 04:41:23 -0400</pubDate> </item> <item> <guid>https://reprap.org/forum/read.php?153,71274,79752#msg-79752</guid> <title>Re: Powderbed Machine</title> <link>https://reprap.org/forum/read.php?153,71274,79752#msg-79752</link> <description><![CDATA[ Probably not the best place to post this but this [<a href="http://www.gom.com/3d-software/gom-inspect.html" target="_blank" rel="nofollow">www.gom.com</a>] looks useful for mesh edits etc, and its free so we likes it.<br /><br />True the resins are expensive, but I did come across low cost alternatives and recipe some time ago when looking into doing<br />a UV machine, so I would not let the resins put me of doing one, the beauty of the system is its simplicity, very few moving parts, and less to go wrong, although the thought of spending all that money on a DLP, then taking it apart makes me have a cold sweat.]]></description> <dc:creator>johnrpm</dc:creator> <category>Powder Printing and Selective Laser Sintering</category> <pubDate>Thu, 07 Apr 2011 03:40:56 -0400</pubDate> </item> <item> <guid>https://reprap.org/forum/read.php?153,71274,79739#msg-79739</guid> <title>Re: Powderbed Machine</title> <link>https://reprap.org/forum/read.php?153,71274,79739#msg-79739</link> <description><![CDATA[ Here's a valuable link to the photocurable thing: [<a href="http://forums.reprap.org/read.php?184,79580,79580#msg-79580" target="_blank" rel="nofollow">forums.reprap.org</a>]<br /><br />If you follow the link there, you find the keyword: Photoinitiator. There exist photoinitiators for several kinds of resins, like Polyester or Epoxy. Simply mix the intitator into a generic resin and it becomes UV hardening - somehow. Googling a bit, the initiator apparently costs somewhere around $10, sufficient for 1 gallon of resin. - - - so far my quick googling analysis.]]></description> <dc:creator>Traumflug</dc:creator> <category>Powder Printing and Selective Laser Sintering</category> <pubDate>Wed, 06 Apr 2011 20:47:18 -0400</pubDate> </item> </channel></rss> If you would like to create a banner that links to this page (i.e. this validation result), do the following:
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