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	<title>GunLab (KnownHost) &#187; UZi</title>
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	<description>Adventures in gun building!</description>
	<lastBuildDate>Fri, 03 Apr 2026 17:06:41 +0000</lastBuildDate>
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		<title>This week update.</title>
		<link>https://gunlab.net/this-week-update/</link>
		<comments>https://gunlab.net/this-week-update/#comments</comments>
		<pubDate>Sat, 07 Jun 2014 15:50:31 +0000</pubDate>
		<dc:creator><![CDATA[Chuck]]></dc:creator>
				<category><![CDATA[CNC machining]]></category>
		<category><![CDATA[FG-42]]></category>
		<category><![CDATA[Gunsmithing]]></category>
		<category><![CDATA[Japanese type 99 magazine]]></category>
		<category><![CDATA[Parts fabrication]]></category>
		<category><![CDATA[Review]]></category>
		<category><![CDATA[stamping dies]]></category>
		<category><![CDATA[Uncategorized]]></category>
		<category><![CDATA[UZi]]></category>
		<category><![CDATA[VG1-5]]></category>
		<category><![CDATA[Weapons Design]]></category>

		<guid isPermaLink="false">http://gunlab.net/?p=730</guid>
		<description><![CDATA[<p>Once again time has gotten away from me. We are in the shop 7 days a week working on the projects and stuff actually gets accomplished. The updates this week will show the good and the bad that we have had in the last couple of weeks.</p> <p>First will be the really bad and that [...]]]></description>
				<content:encoded><![CDATA[<p>Once again time has gotten away from me. We are in the shop 7 days a week working on the projects and stuff actually gets accomplished. The updates this week will show the good and the bad that we have had in the last couple of weeks.</p>
<p>First will be the really bad and that is stamping the Japanese type 99 magazine. Our biggest mistake was trying to accomplish to much with a single die. It did not work. Instead of pressing the sheet metal it sheared it instead.</p>
<p><a href="http://gunlab.net/wp-content/uploads/2014/06/IMG_2017c.jpg"><img class="aligncenter size-medium wp-image-731" alt="IMG_2017c" src="http://gunlab.net/wp-content/uploads/2014/06/IMG_2017c-300x199.jpg" width="300" height="199" /></a>So this lead to redesigning the dies and the process that we are going to use. We have gone to a multiply step process. The first set of dies will just stamp the groves, the second set will bend the sides and the third will set the angle and do the base plate edge. this is a picture of the new first set of dies.</p>
<p><a href="http://gunlab.net/wp-content/uploads/2014/06/IMG_2161c.jpg"><img class="aligncenter size-medium wp-image-733" alt="IMG_2161c" src="http://gunlab.net/wp-content/uploads/2014/06/IMG_2161c-300x199.jpg" width="300" height="199" /></a><a href="http://gunlab.net/wp-content/uploads/2014/06/IMG_2163c.jpg"><img class="aligncenter size-medium wp-image-734" alt="IMG_2163c" src="http://gunlab.net/wp-content/uploads/2014/06/IMG_2163c-300x199.jpg" width="300" height="199" /></a>I hope to be back at the press with the new dies this week.</p>
<p>Now a completed project that was fun and interesting. We had a UZi that was brought in for repair. It is a dealer sample converted weapon that would just not work. The first thing we needed to do was machine out the bolt to fit properly.</p>
<p><a href="http://gunlab.net/wp-content/uploads/2014/06/IMG_2135c.jpg"><img class="aligncenter size-medium wp-image-735" alt="IMG_2135c" src="http://gunlab.net/wp-content/uploads/2014/06/IMG_2135c-199x300.jpg" width="199" height="300" /></a>However with this type of boring bar the chatter and movement was just to great. We changed to a stiffer bar and all was good.</p>
<p><a href="http://gunlab.net/wp-content/uploads/2014/06/IMG_2138c.jpg"><img class="aligncenter size-medium wp-image-736" alt="IMG_2138c" src="http://gunlab.net/wp-content/uploads/2014/06/IMG_2138c-199x300.jpg" width="199" height="300" /></a>With the bolt problem corrected we still had problems. It would fire one time and then run away. The problem was the excessive movement of the pistol grip. The original grip is set for an 8mm pin and the converted weapon uses a 9mm pin. Once we open the hole in the grip and installed a new proper size pin everything worked like a dream.</p>
<p><a href="http://gunlab.net/wp-content/uploads/2014/06/IMG_2183cw.jpg"><img class="aligncenter size-medium wp-image-739" alt="IMG_2183cw" src="http://gunlab.net/wp-content/uploads/2014/06/IMG_2183cw-300x199.jpg" width="300" height="199" /></a>We are also working on the VG1-5. A great deal of work was accomplished on the upper receiver. The first 5 which are the test rifles are just about completed. we set up the fixture to all us to cut the majority of the upper receiver.</p>
<p><a href="http://gunlab.net/wp-content/uploads/2014/06/IMG_2169c.jpg"><img class="aligncenter size-medium wp-image-740" alt="IMG_2169c" src="http://gunlab.net/wp-content/uploads/2014/06/IMG_2169c-300x199.jpg" width="300" height="199" /></a>This allowed us to machine the bottom hole and the slot for the guide slot.</p>
<p><a href="http://gunlab.net/wp-content/uploads/2014/06/IMG_2172c.jpg"><img class="aligncenter size-medium wp-image-741" alt="IMG_2172c" src="http://gunlab.net/wp-content/uploads/2014/06/IMG_2172c-300x199.jpg" width="300" height="199" /></a>All the guide slots have already been machined.</p>
<p><a href="http://gunlab.net/wp-content/uploads/2014/06/IMG_2184c.jpg"><img class="aligncenter size-medium wp-image-745" alt="IMG_2184c" src="http://gunlab.net/wp-content/uploads/2014/06/IMG_2184c-300x199.jpg" width="300" height="199" /></a></p>
<p><a href="http://gunlab.net/wp-content/uploads/2014/06/IMG_2187c.jpg"><img class="aligncenter size-medium wp-image-746" alt="IMG_2187c" src="http://gunlab.net/wp-content/uploads/2014/06/IMG_2187c-300x199.jpg" width="300" height="199" /></a>This how they fit on the receiver.</p>
<p><a href="http://gunlab.net/wp-content/uploads/2014/06/IMG_2188c.jpg"><img class="aligncenter size-medium wp-image-747" alt="IMG_2188c" src="http://gunlab.net/wp-content/uploads/2014/06/IMG_2188c-300x199.jpg" width="300" height="199" /></a>The cocking handle holes have been drilled.</p>
<p><a href="http://gunlab.net/wp-content/uploads/2014/06/IMG_2173c.jpg"><img class="aligncenter size-medium wp-image-742" alt="IMG_2173c" src="http://gunlab.net/wp-content/uploads/2014/06/IMG_2173c-300x199.jpg" width="300" height="199" /></a>The rear sight dove tail slots have been cut.<a href="http://gunlab.net/wp-content/uploads/2014/06/IMG_2169cw.jpg"><img class="aligncenter size-medium wp-image-748" alt="IMG_2169cw" src="http://gunlab.net/wp-content/uploads/2014/06/IMG_2169cw-300x199.jpg" width="300" height="199" /></a>In addition to this we also finished the FG-42 butt plate stamping die and started stamping them. That will be the next post and I have to get back into the shop and get to work.</p>
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