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		<title><![CDATA[SoliForum - 3D Printing Community — Issue with rough prints]]></title>
		<link>https://www.soliforum.com/topic/6806/issue-with-rough-prints/</link>
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		<description><![CDATA[The most recent posts in Issue with rough prints.]]></description>
		<lastBuildDate>Wed, 25 Jun 2014 15:35:04 +0000</lastBuildDate>
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			<title><![CDATA[Re: Issue with rough prints]]></title>
			<link>https://www.soliforum.com/post/59302/#p59302</link>
			<description><![CDATA[<div class="quotebox"><cite>grob wrote:</cite><blockquote><p>Aaaaah... I assume you&#039;re using ABS?<br />As the E3D measures block temp rather than nozzle temp like the stock unit, the temp needs to be set a bit higher to compensate. I run my E3D v5 with ABS at 230°C. Try this and see whether it improves at all.</p><p>Adjusting Vref is adjusting the motor current for the extruder motor with the tiny wee trimpot. Your E3D will need a different amount of torque than the stock hot end, so it&#039;s worth retuning the driver current to match. If it&#039;s incorrectly set then it may either miss steps or pulse too strongly. There&#039;s a few techniques, one is by voltage, but I like to do it by sound. Have a look here: <a href="http://www.soliforum.com/topic/6196/best-way-to-adjust-trimpots/">http://www.soliforum.com/topic/6196/bes … -trimpots/</a></p></blockquote></div><p>+1 VREF&#039;s are going to be very important with the E3d&#039;s much smaller melt zone. <br />Temp needs to be 230 - 245&nbsp; depending on speeds.<br />I see plenty of moire so adjusting that VREF by ear is about the only way to reduce that as much as possible.&nbsp; To completely eliminate it you will need to go to 1/32 stepper driver (DRV8825).<br />I also see over extrusion so calibrating a single wall to .48 to dial in your extrusion multiplier will help.<br />Also worth mention would be extrusion width (tool path). There are plenty of users running with the standard .42 as the extrusion width.&nbsp; Those numbers were great when SD&#039;s came with a .35 nozzle.&nbsp; Since they now ship all SD&#039;s with a .40 nozzle and most users upgrading to the E3d at least start with a .40 nozzle.&nbsp; Those extrusion width numbers should be closer to .48.&nbsp; Past that I am guessing your filament is plenty saturated with humidity.&nbsp; Summer is great for most activities except 3Dprinting <img src="https://www.soliforum.com/img/smilies/wink.png" width="15" height="15" alt="wink" /></p>]]></description>
			<author><![CDATA[null@example.com (wardjr)]]></author>
			<pubDate>Wed, 25 Jun 2014 15:35:04 +0000</pubDate>
			<guid>https://www.soliforum.com/post/59302/#p59302</guid>
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			<title><![CDATA[Re: Issue with rough prints]]></title>
			<link>https://www.soliforum.com/post/59282/#p59282</link>
			<description><![CDATA[<p>Aaaaah... I assume you&#039;re using ABS?<br />As the E3D measures block temp rather than nozzle temp like the stock unit, the temp needs to be set a bit higher to compensate. I run my E3D v5 with ABS at 230°C. Try this and see whether it improves at all.</p><p>Adjusting Vref is adjusting the motor current for the extruder motor with the tiny wee trimpot. Your E3D will need a different amount of torque than the stock hot end, so it&#039;s worth retuning the driver current to match. If it&#039;s incorrectly set then it may either miss steps or pulse too strongly. There&#039;s a few techniques, one is by voltage, but I like to do it by sound. Have a look here: <a href="http://www.soliforum.com/topic/6196/best-way-to-adjust-trimpots/">http://www.soliforum.com/topic/6196/bes … -trimpots/</a></p>]]></description>
			<author><![CDATA[null@example.com (grob)]]></author>
			<pubDate>Wed, 25 Jun 2014 05:26:12 +0000</pubDate>
			<guid>https://www.soliforum.com/post/59282/#p59282</guid>
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			<title><![CDATA[Re: Issue with rough prints]]></title>
			<link>https://www.soliforum.com/post/59281/#p59281</link>
			<description><![CDATA[<p>Grob....</p><p>I did not do a PID yet as the temp seemed to holding fairly consistently... <br />I did do a extruder calibration adjustment...&nbsp; (I am not sure what VREF is)</p><p>Currently the hotend temp with E3D is running around 215*</p><p>Cujo</p>]]></description>
			<author><![CDATA[null@example.com (cujo3131)]]></author>
			<pubDate>Wed, 25 Jun 2014 05:11:48 +0000</pubDate>
			<guid>https://www.soliforum.com/post/59281/#p59281</guid>
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			<title><![CDATA[Re: Issue with rough prints]]></title>
			<link>https://www.soliforum.com/post/59280/#p59280</link>
			<description><![CDATA[<p>Not exactly sure - looks like the layers are coming out in pulses.</p><p>You&#039;ve calibrated the extruder, but have you done all of the following?<br />* Hot end temp PID tuning<br />* Extruder driver VREF<br />* Steps-per-mm<br />* Wall thickness</p><p>Have you tried changing the hot-end temperature up or down 5C? What temp are you running at now?</p><p>Also, anything feel loose/wobbly?</p>]]></description>
			<author><![CDATA[null@example.com (grob)]]></author>
			<pubDate>Wed, 25 Jun 2014 05:06:06 +0000</pubDate>
			<guid>https://www.soliforum.com/post/59280/#p59280</guid>
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			<title><![CDATA[Issue with rough prints]]></title>
			<link>https://www.soliforum.com/post/59274/#p59274</link>
			<description><![CDATA[<p>Ok Guys...</p><p>First off, I would like to say thank you to all of you who helped me<br />get my new E3Dv6 installed and up and running... it really has been<br />nice to work with so far....</p><p>However, I having some issues with rough printing....</p><p>What I have done:</p><p>Ok... when updating my firmware, I watched a video that explained<br />changing the z axis to fix step issues...</p><p><div class="fancy_video_tag_player"><iframe class="youtube-player" type="text/html" width="640" height="385" src="http://www.youtube.com/embed/kLr7K_JkkoU" frameborder="0"></iframe></div></p><p>And then used a prusa calculator to get the best layer height for<br />printing at .20 height (.1976)</p><p>I also did the extruder calibration setup as well... but I am still<br />getting strange artifacts on the outer perimeters...</p><p>I have tried to attach 2 images of the problem I am having....</p><p>Can anyone trouble shoot this for me or make a suggestion on what <br />I perhaps did wrong???</p><p>Thanks! </p><p>Cujo</p>]]></description>
			<author><![CDATA[null@example.com (cujo3131)]]></author>
			<pubDate>Wed, 25 Jun 2014 04:04:43 +0000</pubDate>
			<guid>https://www.soliforum.com/post/59274/#p59274</guid>
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