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BLtouch heat comment

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lawgicau
2021-07-13 21:37:08 +10:00
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<iframe width="480" height="360" src="https://www.youtube.com/embed/eF060dBEnfs" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
<p>For this guide, we will start with the physical mounting of the BLtouch, then cover wiring, firmware changes, calibration, slicer changes, customisation and troubleshooting.</p>
<h4>Physical mounting</h4>
<p>A BLtouch needs to be mounted to the print head of the machine. Like any ABL probe, the closer you can position it to the nozzle when looking directly from above, the better. The BLtouch should be secured tightly. Any play or wobble will destroy accuracy and repeataility. Other considerations when mounting are making sure the BLtouch is not so close to the hot end that it suffers damage from heat, and that its placement does not interfere with homing.</p>
<p>A BLtouch needs to be mounted to the print head of the machine. Ideally the BLtouch (or any other ABL probe) will be mounted as closely to the nozzle as possible, but not so close it fails from exposure to heat. A silicone sock over the heater block can assist here. The BLtouch should be secured tightly. Any play or wobble will destroy accuracy and repeataility. Other considerations when mounting are making sure the BLtouch is not so close to the hot end that it suffers damage from heat, and that its placement does not interfere with homing.</p>
<p>As the BLtouch is very popular, there is a wide range of printed mounts available on Thingiverse and other 3D file sharing sites. Below are some examples:</p>
<ul>
<li><a href="https://www.thingiverse.com/thing:3003725/" target="_blank">Ender 3 (Pro) / CR-10</a></li>