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		<title><![CDATA[SoliForum - 3D Printing Community — Print head home location off - error with auto calibration]]></title>
		<link>https://www.soliforum.com/topic/9739/print-head-home-location-off-error-with-auto-calibration/</link>
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		<description><![CDATA[The most recent posts in Print head home location off - error with auto calibration.]]></description>
		<lastBuildDate>Sun, 08 Feb 2015 05:36:26 +0000</lastBuildDate>
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			<title><![CDATA[Re: Print head home location off - error with auto calibration]]></title>
			<link>https://www.soliforum.com/post/84026/#p84026</link>
			<description><![CDATA[<p>Problem solved.&nbsp; Thanks again for the help.&nbsp; I adjusted the left side belt using the method described.&nbsp; Printer is up and running, and the prints look impressive.</p>]]></description>
			<author><![CDATA[null@example.com (speifer)]]></author>
			<pubDate>Sun, 08 Feb 2015 05:36:26 +0000</pubDate>
			<guid>https://www.soliforum.com/post/84026/#p84026</guid>
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			<title><![CDATA[Re: Print head home location off - error with auto calibration]]></title>
			<link>https://www.soliforum.com/post/83773/#p83773</link>
			<description><![CDATA[<p>I just looked at mine and compared to your setup. I think your rails are rotated like you thought. My bed and rails are parallel.</p>]]></description>
			<author><![CDATA[null@example.com (DrAnonymous)]]></author>
			<pubDate>Sat, 07 Feb 2015 04:08:21 +0000</pubDate>
			<guid>https://www.soliforum.com/post/83773/#p83773</guid>
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			<title><![CDATA[Re: Print head home location off - error with auto calibration]]></title>
			<link>https://www.soliforum.com/post/83772/#p83772</link>
			<description><![CDATA[<div class="quotebox"><cite>speifer wrote:</cite><blockquote><p>OK, I think I found the problem.&nbsp; The horizontal rails are crooked in the Y direction.&nbsp; I&#039;m guessing that the belt on the left side has jumped some teeth.&nbsp; In other words, the left side of the rails is further back than the right side.&nbsp; Looking down from the top you can see that the rails are not parallel with the lines on the heated glass.&nbsp; It also appears they are not parallel with the sheet metal enclosure.&nbsp; </p><p>Unfortunately, I can&#039;t post pictures because I have under 10 posts. You can try copying these links to view the pictures I took looking down from the top.</p><br /><p>i214.photobucket.com/albums/cc44/speifer/Mobile%20Uploads/8ee8d46a-38eb-42a0-8a65-4d8f73c73183_zpsc74e1e48.jpg</p><p>i214.photobucket.com/albums/cc44/speifer/Mobile%20Uploads/20150206_211446_zps3257e575.jpg</p><p>Should I try adjusting the left belt, or should I just contact XYZ regarding warranty?&nbsp; Is there a procedure for ensuring the belts are synchronized (even) on the left and right sides?</p><p>Thanks again!</p></blockquote></div><br /><p>This is a common problem and happens in shipping. With power off pull the x gantry all the way forward till it stops. You should see both sides hit the white rollers at the same time. But in your case the left side probably does not hit. You have to release the tension on the belt for the left side or the wrong side and move the belt over the teeth by hand. Then tighten the tension and see if it is aligned now. Repeat if necessary. The tension can be released by removing the side panel and loosening the two torx screws securing the bearing cup. There is a spring loading ir so you will have to push against the spring to relieve tension.</p>]]></description>
			<author><![CDATA[null@example.com (carl_m1968)]]></author>
			<pubDate>Sat, 07 Feb 2015 03:59:20 +0000</pubDate>
			<guid>https://www.soliforum.com/post/83772/#p83772</guid>
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			<title><![CDATA[Re: Print head home location off - error with auto calibration]]></title>
			<link>https://www.soliforum.com/post/83764/#p83764</link>
			<description><![CDATA[<p>OK, I think I found the problem.&nbsp; The horizontal rails are crooked in the Y direction.&nbsp; I&#039;m guessing that the belt on the left side has jumped some teeth.&nbsp; In other words, the left side of the rails is further back than the right side.&nbsp; Looking down from the top you can see that the rails are not parallel with the lines on the heated glass.&nbsp; It also appears they are not parallel with the sheet metal enclosure.&nbsp; </p><p>Unfortunately, I can&#039;t post pictures because I have under 10 posts. You can try copying these links to view the pictures I took looking down from the top.</p><br /><p>i214.photobucket.com/albums/cc44/speifer/Mobile%20Uploads/8ee8d46a-38eb-42a0-8a65-4d8f73c73183_zpsc74e1e48.jpg</p><p>i214.photobucket.com/albums/cc44/speifer/Mobile%20Uploads/20150206_211446_zps3257e575.jpg</p><p>Should I try adjusting the left belt, or should I just contact XYZ regarding warranty?&nbsp; Is there a procedure for ensuring the belts are synchronized (even) on the left and right sides?</p><p>Thanks again!</p>]]></description>
			<author><![CDATA[null@example.com (speifer)]]></author>
			<pubDate>Sat, 07 Feb 2015 03:35:04 +0000</pubDate>
			<guid>https://www.soliforum.com/post/83764/#p83764</guid>
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			<title><![CDATA[Re: Print head home location off - error with auto calibration]]></title>
			<link>https://www.soliforum.com/post/83726/#p83726</link>
			<description><![CDATA[<div class="quotebox"><cite>speifer wrote:</cite><blockquote><p>You guys are awesome, thanks for the help.</p><p>Here are my measurements.<br />distance between inside edges of front contact plates: 166.7 mm (measured with tape measure)<br />dimensions of front contact plates: 24.16mm x 13.02mm (measure with digital calipers)</p><p>Z-rods don&#039;t appear to be bent when I rotate them.</p></blockquote></div><br /><p>Ok so lets try this, not sure what you are measuring with but if it is long enough measure the distance between the z rods and the front edge of the machine top and bottom and see if they are the same on both right and left. I am still convinced that some how your bed is torqued to the left slightly and that is causing the probe to miss that left contact plate. </p><p>One more thing you can try if you have&nbsp; a set of torx drivers is to loosen the screw securing that plate and see if it can be moved a little more right before tightening it.</p>]]></description>
			<author><![CDATA[null@example.com (carl_m1968)]]></author>
			<pubDate>Sat, 07 Feb 2015 00:44:28 +0000</pubDate>
			<guid>https://www.soliforum.com/post/83726/#p83726</guid>
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			<title><![CDATA[Re: Print head home location off - error with auto calibration]]></title>
			<link>https://www.soliforum.com/post/83725/#p83725</link>
			<description><![CDATA[<p>You guys are awesome, thanks for the help.</p><p>Here are my measurements.<br />distance between inside edges of front contact plates: 166.7 mm (measured with tape measure)<br />dimensions of front contact plates: 24.16mm x 13.02mm (measure with digital calipers)</p><p>Z-rods don&#039;t appear to be bent when I rotate them.</p>]]></description>
			<author><![CDATA[null@example.com (speifer)]]></author>
			<pubDate>Sat, 07 Feb 2015 00:40:02 +0000</pubDate>
			<guid>https://www.soliforum.com/post/83725/#p83725</guid>
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			<title><![CDATA[Re: Print head home location off - error with auto calibration]]></title>
			<link>https://www.soliforum.com/post/83718/#p83718</link>
			<description><![CDATA[<p>I looked at your video and all looks normal till the last measure. In regards to the scrapper, the rubber part cleans the nozzle as it is brass and very soft in terms of metal. The stainless steel finger cleans the sensor nub for the positioning system. So that part is working correctly.</p><p>If you have a method to measure in metric, measure the distance between the inside edges of the contact plates on your machine and I will confirm those to mine. Or someone else can as I will not be home till 12:30 CST thanks to working second shift. Also measure the actual width of both contact plates on the front. </p><p>Too me it looks like your bed is actually twisted to the left when looking at the machine. It is possible the Z- rods in the back are bent. Try turning the guide rods on the left and right of the screw in the back and see if you notice any warping in them. You should not be able to tell they are being turned when looking at them. I suspect if you turn then you are going to see the front edge of your bed move left and right.</p><p>When it is probing on the right side it should be further in where the nozzle nearly touched the edge of the contact plate as well. This is what leads me to believe the rods are warped and pushing the bed to the left from center.</p>]]></description>
			<author><![CDATA[null@example.com (carl_m1968)]]></author>
			<pubDate>Sat, 07 Feb 2015 00:12:06 +0000</pubDate>
			<guid>https://www.soliforum.com/post/83718/#p83718</guid>
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			<title><![CDATA[Re: Print head home location off - error with auto calibration]]></title>
			<link>https://www.soliforum.com/post/83712/#p83712</link>
			<description><![CDATA[<p>I just took a video of the calibration process.&nbsp; The forum won&#039;t let me post a link, but you can copy and paste this into your browser to go to the Youtube video: youtu.be/9IarjDm7YWA</p><p>It actually appears to be missing the last metal corner to the rear during the calibration.</p>]]></description>
			<author><![CDATA[null@example.com (speifer)]]></author>
			<pubDate>Fri, 06 Feb 2015 23:27:48 +0000</pubDate>
			<guid>https://www.soliforum.com/post/83712/#p83712</guid>
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			<title><![CDATA[Re: Print head home location off - error with auto calibration]]></title>
			<link>https://www.soliforum.com/post/83682/#p83682</link>
			<description><![CDATA[<p>My guess is the black plastic tab on the extruder carriage that triggers the endstop is broken or shorter than nominal.&nbsp; The carriage has to move further to the right before the end stop is triggered.</p>]]></description>
			<author><![CDATA[null@example.com (evanalmighty)]]></author>
			<pubDate>Fri, 06 Feb 2015 20:37:18 +0000</pubDate>
			<guid>https://www.soliforum.com/post/83682/#p83682</guid>
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			<title><![CDATA[Re: Print head home location off - error with auto calibration]]></title>
			<link>https://www.soliforum.com/post/83678/#p83678</link>
			<description><![CDATA[<p>Mine is to the right of the cleaner flap also. Sorry I was misunderstanding your info. I was under the impression that when the printer cleans the head it is too the right. Carl is correct</p>]]></description>
			<author><![CDATA[null@example.com (johnluksas)]]></author>
			<pubDate>Fri, 06 Feb 2015 20:05:39 +0000</pubDate>
			<guid>https://www.soliforum.com/post/83678/#p83678</guid>
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			<title><![CDATA[Re: Print head home location off - error with auto calibration]]></title>
			<link>https://www.soliforum.com/post/83674/#p83674</link>
			<description><![CDATA[<div class="quotebox"><cite>johnluksas wrote:</cite><blockquote><p>I am by no means an expert. But until I can get home and look at the printer and see what it could be I could just suggest some things. I am guessing here</p><p>1. First I would check to see if the bearings that attach the x axis rods to the right and left sides of the printer are intact. They could have cracked in shipment. <br />2. I would check to see if the endstops are broken/in the wrong place (i doubt they are though)<br />3. Just see if the belts have good tension and all of the gears and such are intact.</p><br /><p>If someone more experience (like carl) does not find the solution for you and these tips do not help, when I get home I will look at my da vinci and see what could be causing the problem.</p></blockquote></div><br /><p>I would really need to see a picture. Because when mine is home it is over the drop box but about maybe 1 inch to the right of the scrapper.&nbsp; It will only hit/use the scrapper during the print operation as it lowers the bed and begins to heat the nozzle. So it sounds to me his is in the right home position. The issue is that it does not stop at the right position for the third contact. </p><p>Unless his home sensor (black and white device in right x carriage end) is displaced the head will be in the same position as all of ours.&nbsp; Now it sounds to me that his head is actually put together wrong and the vertical axis of the extruder and hot end may be bent. The hot end or the heat block assembly is actually moved to one side or another. I have yet to take my head apart to see if there is some play where this could happen or if his could actually be damaged.</p>]]></description>
			<author><![CDATA[null@example.com (carl_m1968)]]></author>
			<pubDate>Fri, 06 Feb 2015 19:49:11 +0000</pubDate>
			<guid>https://www.soliforum.com/post/83674/#p83674</guid>
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			<title><![CDATA[Re: Print head home location off - error with auto calibration]]></title>
			<link>https://www.soliforum.com/post/83671/#p83671</link>
			<description><![CDATA[<p>I am by no means an expert. But until I can get home and look at the printer and see what it could be I could just suggest some things. I am guessing here</p><p>1. First I would check to see if the bearings that attach the x axis rods to the right and left sides of the printer are intact. They could have cracked in shipment. <br />2. I would check to see if the endstops are broken/in the wrong place (i doubt they are though)<br />3. Just see if the belts have good tension and all of the gears and such are intact.</p><br /><p>If someone more experience (like carl) does not find the solution for you and these tips do not help, when I get home I will look at my da vinci and see what could be causing the problem.</p>]]></description>
			<author><![CDATA[null@example.com (johnluksas)]]></author>
			<pubDate>Fri, 06 Feb 2015 19:24:43 +0000</pubDate>
			<guid>https://www.soliforum.com/post/83671/#p83671</guid>
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			<title><![CDATA[Re: Print head home location off - error with auto calibration]]></title>
			<link>https://www.soliforum.com/post/83661/#p83661</link>
			<description><![CDATA[<p>Correct.&nbsp; When the printer homes itself it is to the right of the metal fingers for cleaning.</p>]]></description>
			<author><![CDATA[null@example.com (speifer)]]></author>
			<pubDate>Fri, 06 Feb 2015 18:23:14 +0000</pubDate>
			<guid>https://www.soliforum.com/post/83661/#p83661</guid>
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			<title><![CDATA[Re: Print head home location off - error with auto calibration]]></title>
			<link>https://www.soliforum.com/post/83660/#p83660</link>
			<description><![CDATA[<p>So just for clarification are you saying that when you turn the printer on and it homes itself above the filament catch bin it is already off set to the right?</p>]]></description>
			<author><![CDATA[null@example.com (johnluksas)]]></author>
			<pubDate>Fri, 06 Feb 2015 18:14:08 +0000</pubDate>
			<guid>https://www.soliforum.com/post/83660/#p83660</guid>
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			<title><![CDATA[Print head home location off - error with auto calibration]]></title>
			<link>https://www.soliforum.com/post/83643/#p83643</link>
			<description><![CDATA[<p>Hi, I am new to this and just received my XYZ Davinci printer yesterday, so bear with me.</p><p>After loading the filament, I attempted a test print.&nbsp; I noticed during the automatic nozzle cleaning (where the print head goes back and forth over the metal fingers to knock off filament), the nozzle was positioned too far to the right (looking from the front window toward the rear).&nbsp; When the print head moved forwards and backwards to clean the nozzle, it completely missed the metal cleaning finger.</p><p>After the cleaning cycle, the print head moved over and the print nozzle contacted the glass (I could hear it).&nbsp; The print head dragged the nozzle across the glass.&nbsp; I hit cancel as quickly as I could.&nbsp; </p><p>I then attempted an auto calibration.&nbsp; I received numbers for the first two points, but the third point produced an error.&nbsp; I could see that the nozzle button used for the calibration was too far to the right for the 3rd point and did not contact the metal corner of the glass, instead it came down directly onto the glass.</p><p>Any idea why the print head seems so far off to the right?&nbsp; I will try to take some pictures this evening.</p><p>Edit:&nbsp; Here is the location of my youtube video of the calibration process.&nbsp; Upon looking closer, I think the calibration is missing the last metal corner to the rear, not the right.&nbsp; </p><p>youtu.be/9IarjDm7YWA</p>]]></description>
			<author><![CDATA[null@example.com (speifer)]]></author>
			<pubDate>Fri, 06 Feb 2015 16:26:50 +0000</pubDate>
			<guid>https://www.soliforum.com/post/83643/#p83643</guid>
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