{"id":37717,"date":"2023-11-09T10:32:58","date_gmt":"2023-11-09T16:32:58","guid":{"rendered":"https:\/\/jtechphotonics.com\/?page_id=37717"},"modified":"2025-09-22T11:47:55","modified_gmt":"2025-09-22T17:47:55","slug":"scienci_longmill_laser","status":"publish","type":"page","link":"https:\/\/jtechphotonics.com\/?page_id=37717","title":{"rendered":"Sienci Longmill\/Altmill Laser Upgrade"},"content":{"rendered":"\n<p>The Longmill and Altmill CNC is a popular machine for CNC enthusiasts. This laser upgrade will allow these users to upgrade the machine to be an awesome laser machine as well with the J Tech high powered lasers. We will go over how to install the laser on this machine in a process that takes under an hour to get going. Let&#8217;s start!<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center\" id=\"h-purchase-the-longmill-cnc-laser-upgrade\"><a href=\"https:\/\/jtechphotonics.com\/?product=scienci-longmill-cnc-all-in-one-laser-and-mounting-kit-bundle\">Purchase the Longmill CNC Laser Upgrade<\/a><\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><a href=\"https:\/\/jtechphotonics.com\/?product=scienci-longmill-cnc-all-in-one-laser-and-mounting-kit-bundle\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/11\/Longmill-CNC-Laser-Upgrade.jpg\" alt=\"\" class=\"wp-image-37716\" style=\"width:620px;height:620px\" srcset=\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/11\/Longmill-CNC-Laser-Upgrade.jpg 800w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/11\/Longmill-CNC-Laser-Upgrade-200x200.jpg 200w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/11\/Longmill-CNC-Laser-Upgrade-100x100.jpg 100w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/11\/Longmill-CNC-Laser-Upgrade-600x600.jpg 600w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/11\/Longmill-CNC-Laser-Upgrade-300x300.jpg 300w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/11\/Longmill-CNC-Laser-Upgrade-150x150.jpg 150w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/11\/Longmill-CNC-Laser-Upgrade-768x768.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/a><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\" id=\"h-bucky-s-customs-installation-video\">Bucky&#8217;s Customs Installation Video<\/h2>\n\n\n\n<p>Check out Dana&#8217;s video on how to install and use a J Tech Photonics laser on your Longmill machine.  He shows just how easy it is to get up and running with our lasers on the Longmill machine. <\/p>\n\n\n\n<figure class=\"wp-block-embed aligncenter is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<div class=\"nv-iframe-embed\"><iframe loading=\"lazy\" title=\"How To Install the JTech Photonics Quad Pro 24W Laser on a Longmill MK2 CNC!\" width=\"1200\" height=\"675\" src=\"https:\/\/www.youtube.com\/embed\/TU4Sim-MUWc?feature=oembed&#038;enablejsapi=1&#038;origin=https:\/\/jtechphotonics.com\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div>\n<\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-mounting-the-laser\">Mounting the Laser<\/h2>\n\n\n\n<p>Depending on when you purchased your machine, you will have either holes for the laser in the front or also on the side.  Where you choose to mount is up to you.  <\/p>\n\n\n\n<p>The mounting kit will contain the mount, screws, and all of the items needed to install the laser.  Note, the newer higher power lasers will have just one extension cable to run.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/11\/Longmill-J-Tech-Mounting-Kit-Parts-2-sm.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"402\" src=\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/11\/Longmill-J-Tech-Mounting-Kit-Parts-2-sm.jpg\" alt=\"\" class=\"wp-image-39323\" srcset=\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/11\/Longmill-J-Tech-Mounting-Kit-Parts-2-sm.jpg 768w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/11\/Longmill-J-Tech-Mounting-Kit-Parts-2-sm-600x314.jpg 600w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/11\/Longmill-J-Tech-Mounting-Kit-Parts-2-sm-300x157.jpg 300w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/11\/Longmill-J-Tech-Mounting-Kit-Parts-2-sm-150x79.jpg 150w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p>There will also be shorter M5 screws to be able to mount to the side as well.  The newer lasers will have a black 4 pin molex extension cable that looks like this:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><a href=\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/04\/Extension-Cables.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/04\/Extension-Cables.jpg\" alt=\"\" class=\"wp-image-35759\" style=\"width:432px;height:432px\" srcset=\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/04\/Extension-Cables.jpg 800w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/04\/Extension-Cables-200x200.jpg 200w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/04\/Extension-Cables-100x100.jpg 100w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/04\/Extension-Cables-600x600.jpg 600w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/04\/Extension-Cables-300x300.jpg 300w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/04\/Extension-Cables-150x150.jpg 150w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/04\/Extension-Cables-768x768.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p>To mount to the front, you will remove the two bolts holding the router mount tight.  Unscrew the two front bolts, put the mount on, and then use the new longer bolts provided to tighten back the router holder.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><a href=\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/11\/Longmill-front-mount-sm.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"520\" src=\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/11\/Longmill-front-mount-sm.jpg\" alt=\"\" class=\"wp-image-37718\" style=\"width:637px;height:414px\" srcset=\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/11\/Longmill-front-mount-sm.jpg 800w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/11\/Longmill-front-mount-sm-600x390.jpg 600w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/11\/Longmill-front-mount-sm-300x195.jpg 300w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/11\/Longmill-front-mount-sm-768x499.jpg 768w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/11\/Longmill-front-mount-sm-150x98.jpg 150w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p>For the side mount, you can use the two tapped M5 holes on the left side of the router holder.  Use the shorter M5 screws included in the kit to attach the mount to the side.  They are located here:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><a href=\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/11\/Longmill-side-mount-2.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"518\" height=\"567\" src=\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/11\/Longmill-side-mount-2.jpg\" alt=\"\" class=\"wp-image-37720\" style=\"width:398px;height:436px\" srcset=\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/11\/Longmill-side-mount-2.jpg 518w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/11\/Longmill-side-mount-2-274x300.jpg 274w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/11\/Longmill-side-mount-2-150x164.jpg 150w\" sizes=\"auto, (max-width: 518px) 100vw, 518px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p>If you use the side mounting position, you will need to use the two inside screw holes on the mount.  <\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-44w-and-64w-laser-plate\">44W and 64W Laser Plate<\/h3>\n\n\n\n<p>Install the metal mounting plate on either the front or the side of the router holder.&nbsp; Use the two screws included in the kit for this.&nbsp;<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2024\/10\/image.png\"><img loading=\"lazy\" decoding=\"async\" width=\"368\" height=\"304\" src=\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2024\/10\/image.png\" alt=\"\" class=\"wp-image-40813\" srcset=\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2024\/10\/image.png 368w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2024\/10\/image-300x248.png 300w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2024\/10\/image-150x124.png 150w\" sizes=\"auto, (max-width: 368px) 100vw, 368px\" \/><\/a><\/figure>\n<\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2024\/10\/image-1.png\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"483\" src=\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2024\/10\/image-1.png\" alt=\"\" class=\"wp-image-40814\" srcset=\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2024\/10\/image-1.png 600w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2024\/10\/image-1-300x242.png 300w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2024\/10\/image-1-150x121.png 150w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p>Laser attaches to mount on locking points.  You can lock them in by tightening the screws on the back of the laser.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2024\/10\/image-3.png\"><img loading=\"lazy\" decoding=\"async\" width=\"419\" height=\"451\" src=\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2024\/10\/image-3.png\" alt=\"\" class=\"wp-image-40816\" srcset=\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2024\/10\/image-3.png 419w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2024\/10\/image-3-279x300.png 279w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2024\/10\/image-3-150x161.png 150w\" sizes=\"auto, (max-width: 419px) 100vw, 419px\" \/><\/a><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\" id=\"h-altmill-mounting\">Altmill Mounting<\/h3>\n\n\n\n<p>The altmill will have four hole on the front of the spindle holder to mount the laser. You will use the BOTTOM of the four screws to mount the laser plate. You can leave the mount on the machine and then the laser will attach into the magnetic mount with locking keyholes.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><a href=\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/11\/Altmill_mount_J_Tech_Photonics_800.png\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/11\/Altmill_mount_J_Tech_Photonics_800.png\" alt=\"Altmill CNC laser mount from J Tech Photonics\" class=\"wp-image-41520\" style=\"width:595px;height:auto\" srcset=\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/11\/Altmill_mount_J_Tech_Photonics_800.png 800w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/11\/Altmill_mount_J_Tech_Photonics_800-200x200.png 200w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/11\/Altmill_mount_J_Tech_Photonics_800-100x100.png 100w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/11\/Altmill_mount_J_Tech_Photonics_800-600x600.png 600w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/11\/Altmill_mount_J_Tech_Photonics_800-300x300.png 300w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/11\/Altmill_mount_J_Tech_Photonics_800-150x150.png 150w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/11\/Altmill_mount_J_Tech_Photonics_800-768x768.png 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/a><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2025\/09\/Altmill-Laser-Mounting.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"554\" height=\"642\" src=\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2025\/09\/Altmill-Laser-Mounting.jpg\" alt=\"Altmill J Tech Photonics Laser mounting\" class=\"wp-image-43151\" srcset=\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2025\/09\/Altmill-Laser-Mounting.jpg 554w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2025\/09\/Altmill-Laser-Mounting-259x300.jpg 259w\" sizes=\"auto, (max-width: 554px) 100vw, 554px\" \/><\/a><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-routing-the-extension-cable\">Routing the Extension Cable<\/h2>\n\n\n\n<p>The kit will come with either a 10&#8242; Molex extension cable for the smaller machines or a 15&#8242; extension cable for the larger machine (48&#8243; x 30&#8243;).  You can either put it into the cable chains or you can zip tie it to the outside of the cable chains, either way.  Just make sure you put the correct side for the laser before you put it in the cable chains otherwise you will need to do it twice.<\/p>\n\n\n\n<p>Attach the laser to the 4 pin extension cable you ran through the cable chains.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2024\/10\/image-4.png\"><img loading=\"lazy\" decoding=\"async\" width=\"288\" height=\"326\" src=\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2024\/10\/image-4.png\" alt=\"\" class=\"wp-image-40817\" srcset=\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2024\/10\/image-4.png 288w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2024\/10\/image-4-265x300.png 265w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2024\/10\/image-4-150x170.png 150w\" sizes=\"auto, (max-width: 288px) 100vw, 288px\" \/><\/a><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\" id=\"h-electrical-connections\">Electrical Connections<\/h2>\n\n\n\n<p><\/p>\n\n\n\n<p>The Safety Interface board will have connections for the extension cable and the PWM input signal from the Longmill controller.  Here is a description of the connections:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><a href=\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/01\/J-Tech-Safety-Interface-Board-Back-View.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/01\/J-Tech-Safety-Interface-Board-Back-View-1024x576.jpg\" alt=\"\" class=\"wp-image-34595\" style=\"width:736px;height:auto\" srcset=\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/01\/J-Tech-Safety-Interface-Board-Back-View-1024x576.jpg 1024w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/01\/J-Tech-Safety-Interface-Board-Back-View-600x338.jpg 600w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/01\/J-Tech-Safety-Interface-Board-Back-View-300x169.jpg 300w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/01\/J-Tech-Safety-Interface-Board-Back-View-768x432.jpg 768w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/01\/J-Tech-Safety-Interface-Board-Back-View-150x84.jpg 150w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/01\/J-Tech-Safety-Interface-Board-Back-View.jpg 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p>Connect the extension cable to the laser output port H3 and the input cable to the two pin molex port H4. The other side of the input cable goes to the Longmill or Altmill controller board. <\/p>\n\n\n\n<p>Connect to the SpinPWM port on the Longmill control board here:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><a href=\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/11\/Longmill-controller-PWM-2.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"709\" height=\"638\" src=\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/11\/Longmill-controller-PWM-2.jpg\" alt=\"\" class=\"wp-image-37721\" style=\"width:556px;height:500px\" srcset=\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/11\/Longmill-controller-PWM-2.jpg 709w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/11\/Longmill-controller-PWM-2-600x540.jpg 600w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/11\/Longmill-controller-PWM-2-300x270.jpg 300w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/11\/Longmill-controller-PWM-2-150x135.jpg 150w\" sizes=\"auto, (max-width: 709px) 100vw, 709px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p>Connect to the &#8220;Laser&#8221; port on the SLB or SLB-Ext board here:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><a href=\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2025\/09\/Laser-PWM-Connection-Super-Long-Board-Altmill-2.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"592\" src=\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2025\/09\/Laser-PWM-Connection-Super-Long-Board-Altmill-2.jpg\" alt=\"Laser PWM Connection Super Long Board Altmill\" class=\"wp-image-43125\" style=\"width:414px;height:auto\" srcset=\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2025\/09\/Laser-PWM-Connection-Super-Long-Board-Altmill-2.jpg 800w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2025\/09\/Laser-PWM-Connection-Super-Long-Board-Altmill-2-300x222.jpg 300w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2025\/09\/Laser-PWM-Connection-Super-Long-Board-Altmill-2-768x568.jpg 768w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2025\/09\/Laser-PWM-Connection-Super-Long-Board-Altmill-2-600x444.jpg 600w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/a><\/figure>\n<\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><a href=\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2025\/09\/Laser-PWM-Connection-Super-Long-Board-Altmill.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"709\" src=\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2025\/09\/Laser-PWM-Connection-Super-Long-Board-Altmill.jpg\" alt=\"Laser PWM Connection Super Long Board Altmill\" class=\"wp-image-43124\" style=\"width:330px;height:auto\" srcset=\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2025\/09\/Laser-PWM-Connection-Super-Long-Board-Altmill.jpg 800w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2025\/09\/Laser-PWM-Connection-Super-Long-Board-Altmill-300x266.jpg 300w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2025\/09\/Laser-PWM-Connection-Super-Long-Board-Altmill-768x681.jpg 768w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2025\/09\/Laser-PWM-Connection-Super-Long-Board-Altmill-600x532.jpg 600w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p>It should look like this when connected.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2025\/04\/J-Tech-Photonics-SLB-top-view-2.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"519\" height=\"432\" src=\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2025\/04\/J-Tech-Photonics-SLB-top-view-2.jpg\" alt=\"\" class=\"wp-image-42102\" srcset=\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2025\/04\/J-Tech-Photonics-SLB-top-view-2.jpg 519w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2025\/04\/J-Tech-Photonics-SLB-top-view-2-300x250.jpg 300w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2025\/04\/J-Tech-Photonics-SLB-top-view-2-150x125.jpg 150w\" sizes=\"auto, (max-width: 519px) 100vw, 519px\" \/><\/a><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\" id=\"h-air-assist\">Air Assist<\/h2>\n\n\n\n<p>If you have a laser that has integrated air assist, then you ABSOLUTLY need to use it EVERY time you run the laser.  You risk damaging your lens cover if you don&#8217;t.  Here is showing on the 44W laser how to hook it up.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2024\/10\/image-5.png\"><img loading=\"lazy\" decoding=\"async\" width=\"322\" height=\"377\" src=\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2024\/10\/image-5.png\" alt=\"\" class=\"wp-image-40818\" srcset=\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2024\/10\/image-5.png 322w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2024\/10\/image-5-256x300.png 256w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2024\/10\/image-5-150x176.png 150w\" sizes=\"auto, (max-width: 322px) 100vw, 322px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p>There are many air pumps available for adding air assist to the J Tech 7W, 14W, 24W, and 44W lasers.&nbsp; If you plan on just engraving, then a smaller pump is adequate.&nbsp; If you want to do more cutting, then the air pump should be larger.&nbsp; In our findings the 55W pump is the best for cutting and engraving.&nbsp; If you want to just engrave, then the lower power pumps are adequate down to 20W.<\/p>\n\n\n\n<p><a href=\"https:\/\/www.amazon.com\/VIVOSUN-Commercial-Aquarium-Hydroponic-Systems\/dp\/B071GN46SJ\/ref=sxin_13_pa_sp_search_thematic_sspa?crid=1J9JPWD52704V&amp;cv_ct_cx=aquarium+air+pump&amp;keywords=aquarium+air+pump&amp;pd_rd_i=B071GN46SJ&amp;pd_rd_r=2c9a22c1-d3d8-430d-85cd-abf001a5dd85&amp;pd_rd_w=dnOrN&amp;pd_rd_wg=8aE0q&amp;pf_rd_p=34f9b464-bca8-45b3-9c64-0e61b00f319e&amp;pf_rd_r=CCCK6JPDDHCHM01GJM3S&amp;qid=1642289299&amp;sprefix=aquarium+air+pump%2Caps%2C124&amp;sr=1-1-a8004193-6951-43f6-852a-aff7dbba9115-spons&amp;psc=1&amp;spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEzM0hQVlhUNklUM1VaJmVuY3J5cHRlZElkPUEwOTIwMTY1MkhETElHMldDV1BQUSZlbmNyeXB0ZWRBZElkPUEwNDMyMDU1Mk81MVI0MkZEOFZZQyZ3aWRnZXROYW1lPXNwX3NlYXJjaF90aGVtYXRpYyZhY3Rpb249Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU=\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Aquarium Pump for Cutting and Engraving (Choose the 55W Pump)<\/strong><\/a><\/p>\n\n\n\n<figure class=\"wp-block-image\"><a href=\"https:\/\/www.amazon.com\/dp\/B071GN46SJ\/ref=twister_B08DXLG6H1?_encoding=UTF8&amp;th=1\" target=\"_blank\" rel=\"noreferrer noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"118\" src=\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2022\/01\/Laser-engraving-and-cutting-air-pump-50W-300x118.jpg\" alt=\"\" class=\"wp-image-35801\" srcset=\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2022\/01\/Laser-engraving-and-cutting-air-pump-50W-300x118.jpg 300w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2022\/01\/Laser-engraving-and-cutting-air-pump-50W-600x235.jpg 600w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2022\/01\/Laser-engraving-and-cutting-air-pump-50W-1024x402.jpg 1024w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2022\/01\/Laser-engraving-and-cutting-air-pump-50W-768x301.jpg 768w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2022\/01\/Laser-engraving-and-cutting-air-pump-50W-150x59.jpg 150w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2022\/01\/Laser-engraving-and-cutting-air-pump-50W.jpg 1142w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/figure>\n\n\n\n<p>(<a href=\"https:\/\/a.co\/d\/dB8Qarl\" target=\"_blank\" rel=\"noreferrer noopener\">output adapter for recommended pump is HERE \u2013 M10 x 1mm x 6mm<\/a>)<\/p>\n\n\n\n<p>The tubing for the air assist is 3\/16\u2033 outside diameter.&nbsp; It is the standard \u201cairline tubing\u201d or \u201caquarium pump tubing\u201d.&nbsp; Note, you may need to get an adapter for the output of your pump to fit the air assist tubing.<\/p>\n\n\n\n<p>If you use an air compressor, use between 2 PSI and 15 PSI for the regulated air pressure.&nbsp; Do not use too much air pressure.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-software-to-run-your-laser\">Software to Run Your Laser<\/h2>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<div class=\"nv-iframe-embed\"><iframe loading=\"lazy\" title=\"Gsender setup video for J TECH Photonics Lasers\" width=\"1200\" height=\"675\" src=\"https:\/\/www.youtube.com\/embed\/UibXrczhQLc?feature=oembed&#038;enablejsapi=1&#038;origin=https:\/\/jtechphotonics.com\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div>\n<\/div><\/figure>\n\n\n\n<p>We recommend using Lightburn to run your new J Tech laser.  It is an all in one software that will be able to design and control the machine all in one.  It produces excellent results for vector engraving, photo engraving, and cutting.  To get your lightburn software license and free 30 day trial, click on the logo below:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><a href=\"https:\/\/jtechphotonics.com\/?product=lightburn-software\"><img loading=\"lazy\" decoding=\"async\" width=\"595\" height=\"583\" src=\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/05\/Lightburn-Logo.jpg\" alt=\"\" class=\"wp-image-36220\" style=\"width:345px;height:338px\" srcset=\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/05\/Lightburn-Logo.jpg 595w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/05\/Lightburn-Logo-300x294.jpg 300w, https:\/\/jtechphotonics.com\/wp-content\/uploads\/2023\/05\/Lightburn-Logo-150x147.jpg 150w\" sizes=\"auto, (max-width: 595px) 100vw, 595px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p>Once you install lightburn you will need to set up your device.  Set it up following the video below.<\/p>\n\n\n\n<figure class=\"wp-block-embed aligncenter is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<div class=\"nv-iframe-embed\"><iframe loading=\"lazy\" title=\"Lightburn Setup for J Tech Photonics Lasers and GRBL Machines\" width=\"1200\" height=\"675\" src=\"https:\/\/www.youtube.com\/embed\/S0tM7UP2e2E?start=561&#038;feature=oembed&#038;enablejsapi=1&#038;origin=https:\/\/jtechphotonics.com\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div>\n<\/div><\/figure>\n\n\n\n<p>And there it is!  There are many projects you can complete with your new laser.  To see some application examples, look here at our photo gallery to get ideas!<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-wp-embed is-provider-j-tech-photonics-inc wp-block-embed-j-tech-photonics-inc\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"wp-embedded-content\" data-secret=\"ZikNc3nsv5\"><a href=\"https:\/\/jtechphotonics.com\/?page_id=1177\">Laser Engraving Applications<\/a><\/blockquote><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"&#8220;Laser Engraving Applications&#8221; &#8212; J Tech Photonics, Inc.\" src=\"https:\/\/jtechphotonics.com\/?page_id=1177&#038;embed=true#?secret=ohcdWaEhoT#?secret=ZikNc3nsv5\" data-secret=\"ZikNc3nsv5\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe>\n<\/div><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>The Longmill and Altmill CNC is a popular machine for CNC enthusiasts. This laser upgrade will allow these users to upgrade the machine to be an awesome laser machine as well with the J Tech high powered lasers. We will go over how to install the laser on this machine in a process that takes&hellip;&nbsp;<a href=\"https:\/\/jtechphotonics.com\/?page_id=37717\" rel=\"bookmark\">Read More &raquo;<span class=\"screen-reader-text\">Sienci Longmill\/Altmill Laser Upgrade<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","neve_meta_reading_time":"","footnotes":""},"class_list":["post-37717","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.6 (Yoast SEO v27.6) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Sienci Longmill\/Altmill Laser Upgrade - J Tech Photonics, Inc.<\/title>\n<meta name=\"description\" content=\"The Longmill is a very good machine and it is even better when you add a laser to it! Here are the installation instructions.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/jtechphotonics.com\/?page_id=37717\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Sienci Longmill\/Altmill Laser Upgrade\" \/>\n<meta property=\"og:description\" content=\"The Longmill is a very good machine and it is even better when you add a laser to it! 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