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	<title>Bill&#039;s Tinkers &#187; CNC</title>
	<atom:link href="http://protovision.com/tag/cnc/feed/" rel="self" type="application/rss+xml" />
	<link>http://protovision.com</link>
	<description>I like to make stuff.</description>
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		<title>Oh Point Oh Eight</title>
		<link>http://protovision.com/2011/01/10/oh-point-oh-eight/</link>
		<comments>http://protovision.com/2011/01/10/oh-point-oh-eight/#comments</comments>
		<pubDate>Mon, 10 Jan 2011 18:38:32 +0000</pubDate>
		<dc:creator>Bill</dc:creator>
				<category><![CDATA[CNC]]></category>
		<category><![CDATA[RepRap]]></category>

		<guid isPermaLink="false">http://protovision.com/?p=549</guid>
		<description><![CDATA[I did a test print at 0.08mm layers, the smallest layer height I&#8217;ve attempted yet. I used a Makergear Plastruder, and black Ultimachine 4043D PLA. Skeinforge sliced it onto 187 layers. It was not a fast print, taking about 2.5 hours. Aside from a kind of smeary top layer, it came out ok. Pictures follow:]]></description>
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		<slash:comments>2</slash:comments>
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		<item>
		<title>Better bearings, better prints.</title>
		<link>http://protovision.com/2010/08/05/better-bearings-better-prints/</link>
		<comments>http://protovision.com/2010/08/05/better-bearings-better-prints/#comments</comments>
		<pubDate>Thu, 05 Aug 2010 16:50:42 +0000</pubDate>
		<dc:creator>Bill</dc:creator>
				<category><![CDATA[Uncategorized]]></category>
		<category><![CDATA[CNC]]></category>
		<category><![CDATA[RepRap]]></category>

		<guid isPermaLink="false">http://protovision.com/?p=433</guid>
		<description><![CDATA[I&#8217;ve replaced my X axis, which was bronze bushings sliding on steel rod, with a recirculating-ball linear bearings and guide. The former X axis had enough play in it that you could feel it just by wiggling the print bed, and was affecting print quality quite a bit. Between my new extruder hot-end, this new [...]]]></description>
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		<slash:comments>0</slash:comments>
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		<item>
		<title>Extruder Redux</title>
		<link>http://protovision.com/2010/08/03/extruder-redux/</link>
		<comments>http://protovision.com/2010/08/03/extruder-redux/#comments</comments>
		<pubDate>Wed, 04 Aug 2010 05:28:17 +0000</pubDate>
		<dc:creator>Bill</dc:creator>
				<category><![CDATA[CNC]]></category>
		<category><![CDATA[Machining]]></category>
		<category><![CDATA[RepRap]]></category>

		<guid isPermaLink="false">http://protovision.com/?p=423</guid>
		<description><![CDATA[After melting the PTFE insulator yet another time, I&#8217;ve built another hot end. This one doesn&#8217;t use the PTFE as a stress-bearing part, but only to contain any plastic that may ooze above the top of the heater barrel. The heater barrel is threaded into the PTFE about 0.25&#8243;, just enough to keep it aligned. [...]]]></description>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Baked PLA</title>
		<link>http://protovision.com/2010/07/11/baked-pla/</link>
		<comments>http://protovision.com/2010/07/11/baked-pla/#comments</comments>
		<pubDate>Mon, 12 Jul 2010 06:24:15 +0000</pubDate>
		<dc:creator>Bill</dc:creator>
				<category><![CDATA[CNC]]></category>
		<category><![CDATA[RepRap]]></category>
		<category><![CDATA[PLA]]></category>
		<category><![CDATA[Plastic]]></category>

		<guid isPermaLink="false">http://protovision.com/?p=298</guid>
		<description><![CDATA[After trying to do some printing with a spool of White PLA 4042D, and being unable to replicate the quality level I&#8217;d got with Natural PLA 4042D, I started to look for possible differences in the composition of the filament. After reading the datasheets, the only documented difference is %2-%4 pigment. I&#8217;d had decent results [...]]]></description>
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		<slash:comments>2</slash:comments>
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		<title>More test prints</title>
		<link>http://protovision.com/2010/06/03/more-test-prints/</link>
		<comments>http://protovision.com/2010/06/03/more-test-prints/#comments</comments>
		<pubDate>Thu, 03 Jun 2010 16:49:11 +0000</pubDate>
		<dc:creator>Bill</dc:creator>
				<category><![CDATA[CNC]]></category>
		<category><![CDATA[RepRap]]></category>

		<guid isPermaLink="false">http://protovision.com/?p=275</guid>
		<description><![CDATA[I&#8217;ve printed so many single walled squares that I&#8217;m seeing them in my sleep.]]></description>
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		<slash:comments>0</slash:comments>
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		<title>RepStrap Nozzle</title>
		<link>http://protovision.com/2010/04/26/repstrap-nozzle/</link>
		<comments>http://protovision.com/2010/04/26/repstrap-nozzle/#comments</comments>
		<pubDate>Mon, 26 Apr 2010 18:57:35 +0000</pubDate>
		<dc:creator>Bill</dc:creator>
				<category><![CDATA[CNC]]></category>
		<category><![CDATA[Machining]]></category>
		<category><![CDATA[Metalwork]]></category>
		<category><![CDATA[RepRap]]></category>

		<guid isPermaLink="false">http://protovision.com/?p=197</guid>
		<description><![CDATA[After melting the PTFE insulator on my RepStrap extruder twice, I went back to the drawing board and replaced the whole hot-end assembly. I manually turned the new nozzle and barrel on my mini-lathe. The nichrome heater wire will wrap right around the nozzle, applying the heat as close as possible to the tip. The [...]]]></description>
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		<slash:comments>0</slash:comments>
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		<item>
		<title>3D Printer</title>
		<link>http://protovision.com/2010/04/21/3d-printer/</link>
		<comments>http://protovision.com/2010/04/21/3d-printer/#comments</comments>
		<pubDate>Thu, 22 Apr 2010 02:15:33 +0000</pubDate>
		<dc:creator>Bill</dc:creator>
				<category><![CDATA[CNC]]></category>
		<category><![CDATA[Machining]]></category>
		<category><![CDATA[Microcontroller]]></category>
		<category><![CDATA[RepRap]]></category>

		<guid isPermaLink="false">http://protovision.com/?p=107</guid>
		<description><![CDATA[The RepRap is a 3D printer that builds small objects out of plastics, by squirting layers of melted plastic out of a nozzle, on to a computer-controlled moving platform. Once a single layer is made, it moves to the next layer up from the bottom, repeating this process until your object is created. This process [...]]]></description>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>CNC Mill</title>
		<link>http://protovision.com/2010/01/31/cnc-mill/</link>
		<comments>http://protovision.com/2010/01/31/cnc-mill/#comments</comments>
		<pubDate>Mon, 01 Feb 2010 03:58:15 +0000</pubDate>
		<dc:creator>Bill</dc:creator>
				<category><![CDATA[CNC]]></category>
		<category><![CDATA[Machining]]></category>
		<category><![CDATA[Metalwork]]></category>

		<guid isPermaLink="false">http://protovision.com/wordpress/?p=57</guid>
		<description><![CDATA[For years and years I&#8217;ve been facinated with CNC machinery. There&#8217;s something incredibly compelling about the idea that you can design something digitally, with all the &#8220;undo&#8221; you want, and then have a machine make it for you. Of course, it&#8217;s really not that simple in practice, but it&#8217;s still an incredibly exciting thing. For [...]]]></description>
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		<slash:comments>2</slash:comments>
		</item>
		<item>
		<title>Milled pcb test</title>
		<link>http://protovision.com/2010/01/03/milled-pcb/</link>
		<comments>http://protovision.com/2010/01/03/milled-pcb/#comments</comments>
		<pubDate>Sun, 03 Jan 2010 07:17:40 +0000</pubDate>
		<dc:creator>Bill</dc:creator>
				<category><![CDATA[CNC]]></category>
		<category><![CDATA[Machining]]></category>
		<category><![CDATA[pcb]]></category>

		<guid isPermaLink="false">http://protovision.com/wordpress/?p=18</guid>
		<description><![CDATA[Last week I did a test pcb milling on my cnc pcb mill. I&#8217;m still learning how to properly configure the PCB-Gcode software, and I think this is the best result to date. The board is the top side of LadyAda&#8217;s Drawdio board, and it took about 15 minutes to mill. I used a 60 [...]]]></description>
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		<slash:comments>0</slash:comments>
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