![]() In the inside of your machine is something called “GRBL” that directs how the machine moves and interprets the G Code file. There are a lot of different “sender” programs that will work with your machine. You do not need to switch firmware between laser engraving and routing, all firmwares will work with both. Obviously if you set up your machine with something other than GRBL (like mach3) then use the appropriate commands for that software setup. To control the laser, the commands will then be: Using the GRBL version that is installed on the CNC xPro you can set your Min and Max RPM values (which control the laser intensity). Simply connect screw terminal D11 on the CNC xPro V2 board to the laser driver input terminal H2 or H4. You can use the standard version of GRBL from the Github site, or our version HERE for photo engraving. Jürgen decided to go with the CNC-xPro V2 controller using GRBL for his machine build. There are many controllers you can use with the openbuilds C Beam machine. The STL file for the holder is here: Laser Driver Holder STL You can make up you own file or you can use this one here. You can easily mount the laser driver to the back of the Z Axis Gantry. Route the wires to the laser driver attached in the back. ![]() ![]() Put the laser holder into the spindle mount and mount the fan on top. Slide the new heatsink/laser assembly into the printed laser holder.ĥ. Place Laser onto heatsink using thermal paste and attach with screws.Ĥ.If you want to make modifications to the mount, then the AutoDesk Fusion 360 file is here: Fusion 360 Laser Holder The link the the stl file is here: LASER HOLDER STL (or click on the picture) It also has a standard 80mm x 80mm fan attached to the back of the mount to direct airflow towards the work surface. It was a standard heatsink for a i486CPU that can be found online. The heatsink dimensions are ~52mm x ~52mm with 27mm fin depth. This featured design includes the use of a CPU heat sink attached to the included laser heat sink. Or you can buy it in our store here: OPENBUILDS LASER MOUNTĢ. You can download the mount here: OPENBUILDS_LASER_MOUNT.STL It is a very tight fit, so you might have to angle the screw slightly to get it into the nut on the top.įinished holder with laser and fan upgrade attached. The screw head goes on the back and the nut is placed in the front. We use 6-32 5/8″ screws to attach the laser to the mount. The picture shown below has the fan upgrade installed as well. We made a quick mount in sketchup to be able to mount the laser using the existing M5 screw holes in the front of the spindle mount. You can print them out with a 3D printer using the provided files, or you can buy the front mounted kit in our store here. You can either make a mount to fit in place of the router or you can put it in the front of the router. There are two ways to mount your laser on the Openbuilds platform using their spindle holder. If you decide to make your own, the stl files for the laser and driver to create your mount are located on the product documentation page here: DOCUMENTATION Laser Holder You can make your own mount or use the design that Jürgen created. In this case, the machine is a dedicated laser machine, so the laser will accommodate the position where the spindle normally is. You can decide to put the laser in front of the spindle by tapping a couple of holes in the front of the spindle mount so you don’t need to remove the spindle or you can put the laser in place of the spindle. The Z axis has a mount for the spindle that can also accommodate a laser. You can check out the compatible machines here in the OPENBUILDS PART STORE. This being said, you can also set this up as a mach 3 machine. ![]() An easy choice is to use GRBL and a GRBL based controller. ![]() We will go over this here.īesides the mechanical portion, you have the choice of a lot of controllers for the electrical section and also the software control. Jürgen Pflug has created a design for the J Tech Laser to integrate into the standard build. It is a very nice sturdy system that is not very expensive. Openbuilds has created a nice kit available on their website for a standard machine based off of their slot system and rails that they sell called the C Beam. Openbuilds – C Beam / OX Upgrade Information on Openbuilds C Beam OX Upgrade
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